8Q7N

cryo-EM structure of the human spliceosomal B complex protomer (tri-snRNP core region)

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
E [auth D]	SCOP2B Superfamily	Thioredoxin-like	8044390	3000031	SCOP2B (2022-06-29)
F [auth I]	SCOP2B Superfamily	PRP38-like	8055808	3002318	SCOP2B (2022-06-29)
H [auth M]	SCOP2B Superfamily	L30e-like	8043738	3001739	SCOP2B (2022-06-29)
N [auth L]	SCOP2B Superfamily	Nop domain	8033305	3001551	SCOP2B (2022-06-29)
Q [auth A]	SCOP2B Superfamily	Ribonuclease H-like	8041105	3000143	SCOP2B (2022-06-29)
Q [auth A]	SCOP2B Superfamily	JAB1/MPN domain-like	8053277	3001105	SCOP2B (2022-06-29)
S [auth T]	SCOP2B Superfamily	FF domain	8033785	3000078	SCOP2B (2022-06-29)
S [auth T]	SCOP2B Superfamily	FF domain	8003754	3000078	SCOP2B (2022-06-29)
M [auth s]	SCOP2B Superfamily	Ubiquitin-like	8038047	3000157	SCOP2B (2022-06-29)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth 5]	U5 snRNA	-	-	-
B [auth 6]	U6 snRNA	-	-	-
C [auth 7]	Splicing factor 3A subunit 1	RNA binding binding organic cyclic compound binding nucleic acid binding	cellular biosynthetic process RNA metabolic process mRNA processing nucleobase-containing compound metabolic process organic substance metabolic process organic substance biosynthetic process RNA processing RNA splicing cellular metabolic process primary metabolic process gene expression mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process cellular biosynthetic process RNA metabolic process mRNA processing nucleobase-containing compound metabolic process organic substance metabolic process organic substance biosynthetic process RNA processing RNA splicing cellular metabolic process primary metabolic process gene expression mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process organic cyclic compound metabolic process biosynthetic process RNA splicing, via transesterification reactions mRNA cis splicing, via spliceosome mRNA splicing, via spliceosome metabolic process cellular process RNA splicing, via transesterification reactions with bulged adenosine as nucleophile macromolecule metabolic process ribonucleoprotein complex biogenesis protein-RNA complex assembly cellular component organization cellular component biogenesis spliceosomal complex assembly protein-RNA complex organization cellular component assembly protein-containing complex assembly cellular component organization or biogenesis protein-containing complex organization U2-type prespliceosome assembly mRNA splice site recognition mRNA 3'-splice site recognition	membrane-bounded organelle U2-type spliceosomal complex protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle spliceosomal complex organelle ribonucleoprotein complex membrane-enclosed lumen intracellular organelle lumen membrane-bounded organelle U2-type spliceosomal complex protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle spliceosomal complex organelle ribonucleoprotein complex membrane-enclosed lumen intracellular organelle lumen nuclear speck nuclear body nucleoplasm organelle lumen nuclear lumen spliceosomal snRNP complex Sm-like protein family complex small nuclear ribonucleoprotein complex U2 snRNP catalytic step 2 spliceosome catalytic complex U2-type precatalytic spliceosome precatalytic spliceosome prespliceosome U2-type prespliceosome
D [auth C]	116 kDa U5 small nuclear ribonucleoprotein component	RNA binding binding organic cyclic compound binding nucleic acid binding guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding RNA binding binding organic cyclic compound binding nucleic acid binding guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding snRNA binding U5 snRNA binding pyrophosphatase activity GTPase activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity	RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression mRNA processing mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process biosynthetic process RNA splicing, via transesterification reactions RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression mRNA processing mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process biosynthetic process RNA splicing, via transesterification reactions mRNA splicing, via spliceosome organic substance biosynthetic process metabolic process cellular process RNA splicing, via transesterification reactions with bulged adenosine as nucleophile macromolecule metabolic process RNA processing cellular response to stimulus cellular response to chemical stimulus response to stimulus response to chemical cellular response to xenobiotic stimulus response to xenobiotic stimulus response to organic substance response to organonitrogen compound response to oxygen-containing compound response to nitrogen compound response to organic cyclic compound response to cocaine response to alkaloid	membrane cellular anatomical entity membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck nuclear body intracellular organelle nucleoplasm organelle lumen organelle membrane cellular anatomical entity membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck nuclear body intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen catalytic step 2 spliceosome protein-containing complex catalytic complex nuclear protein-containing complex spliceosomal complex ribonucleoprotein complex cytoplasm cytosol spliceosomal snRNP complex Sm-like protein family complex U4/U6 x U5 tri-snRNP complex spliceosomal tri-snRNP complex small nuclear ribonucleoprotein complex Cajal body U2-type spliceosomal complex U2-type precatalytic spliceosome precatalytic spliceosome U2-type catalytic step 2 spliceosome
E [auth D]	Thioredoxin-like protein 4A	-	cellular process cell cycle ribonucleoprotein complex biogenesis cellular biosynthetic process RNA metabolic process mRNA processing protein-RNA complex assembly cellular component organization cellular component biogenesis nucleobase-containing compound metabolic process spliceosomal complex assembly protein-RNA complex organization cellular component assembly organic substance metabolic process cellular process cell cycle ribonucleoprotein complex biogenesis cellular biosynthetic process RNA metabolic process mRNA processing protein-RNA complex assembly cellular component organization cellular component biogenesis nucleobase-containing compound metabolic process spliceosomal complex assembly protein-RNA complex organization cellular component assembly organic substance metabolic process protein-containing complex assembly organic substance biosynthetic process cellular component organization or biogenesis RNA processing RNA splicing protein-containing complex organization cellular metabolic process primary metabolic process gene expression mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process organic cyclic compound metabolic process biosynthetic process RNA splicing, via transesterification reactions mRNA splicing, via spliceosome metabolic process RNA splicing, via transesterification reactions with bulged adenosine as nucleophile macromolecule metabolic process cell division	membrane-bounded organelle U2-type spliceosomal complex protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity U2-type precatalytic spliceosome intracellular organelle spliceosomal complex organelle ribonucleoprotein complex precatalytic spliceosome membrane-bounded organelle U2-type spliceosomal complex protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity U2-type precatalytic spliceosome intracellular organelle spliceosomal complex organelle ribonucleoprotein complex precatalytic spliceosome cytoplasm cytosol U5 snRNP spliceosomal snRNP complex Sm-like protein family complex small nuclear ribonucleoprotein complex U4/U6 x U5 tri-snRNP complex spliceosomal tri-snRNP complex membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen
F [auth I]	Pre-mRNA-splicing factor 38A	RNA binding binding organic cyclic compound binding nucleic acid binding	RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression mRNA processing mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process biosynthetic process RNA splicing, via transesterification reactions RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression mRNA processing mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process biosynthetic process RNA splicing, via transesterification reactions mRNA splicing, via spliceosome organic substance biosynthetic process metabolic process cellular process RNA splicing, via transesterification reactions with bulged adenosine as nucleophile macromolecule metabolic process RNA processing	membrane-bounded organelle protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle spliceosomal complex organelle ribonucleoprotein complex precatalytic spliceosome membrane-enclosed lumen intracellular organelle lumen membrane-bounded organelle protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle spliceosomal complex organelle ribonucleoprotein complex precatalytic spliceosome membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen U2-type spliceosomal complex U2-type precatalytic spliceosome
G [auth K]	Microfibrillar-associated protein 1	RNA binding binding organic cyclic compound binding nucleic acid binding	RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression mRNA processing mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process biosynthetic process RNA splicing, via transesterification reactions RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression mRNA processing mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process biosynthetic process RNA splicing, via transesterification reactions mRNA splicing, via spliceosome organic substance biosynthetic process metabolic process cellular process RNA splicing, via transesterification reactions with bulged adenosine as nucleophile macromolecule metabolic process RNA processing	membrane-bounded organelle U2-type spliceosomal complex protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle spliceosomal complex organelle ribonucleoprotein complex cell periphery extracellular matrix membrane-bounded organelle U2-type spliceosomal complex protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle spliceosomal complex organelle ribonucleoprotein complex cell periphery extracellular matrix external encapsulating structure microfibril supramolecular fiber supramolecular polymer supramolecular complex membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen U2-type precatalytic spliceosome precatalytic spliceosome centrosome microtubule organizing center cytoskeleton intracellular non-membrane-bounded organelle microtubule cytoskeleton non-membrane-bounded organelle
H [auth M]	NHP2-like protein 1, N-terminally processed	RNA binding snRNA binding U4atac snRNA binding binding organic cyclic compound binding nucleic acid binding box C/D sno(s)RNA binding snoRNA binding U3 snoRNA binding U4 snRNA binding ATPase binding protein binding enzyme binding	sexual reproduction reproductive process fertilization single fertilization ribonucleoprotein complex biogenesis cellular biosynthetic process RNA metabolic process rRNA processing cellular component biogenesis nucleobase-containing compound metabolic process ribosome biogenesis organic substance metabolic process maturation of SSU-rRNA organic substance biosynthetic process sexual reproduction reproductive process fertilization single fertilization ribonucleoprotein complex biogenesis cellular biosynthetic process RNA metabolic process rRNA processing cellular component biogenesis nucleobase-containing compound metabolic process ribosome biogenesis organic substance metabolic process maturation of SSU-rRNA organic substance biosynthetic process cellular component organization or biogenesis RNA processing rRNA metabolic process cellular metabolic process primary metabolic process gene expression macromolecule biosynthetic process ribosomal small subunit biogenesis nucleic acid metabolic process organic cyclic compound metabolic process biosynthetic process nucleic acid catabolic process cellular process metabolic process macromolecule metabolic process ribosomal large subunit biogenesis maturation of LSU-rRNA protein-containing complex organization small nucleolar ribonucleoprotein complex assembly protein-RNA complex assembly cellular component organization protein-RNA complex organization cellular component assembly protein-containing complex assembly box C/D snoRNP assembly RNA splicing mRNA processing mRNA metabolic process RNA splicing, via transesterification reactions mRNA splicing, via spliceosome RNA splicing, via transesterification reactions with bulged adenosine as nucleophile	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle cellular anatomical entity nucleolus intracellular organelle lumen intracellular organelle organelle lumen organelle intracellular non-membrane-bounded organelle nuclear lumen non-membrane-bounded organelle membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle cellular anatomical entity nucleolus intracellular organelle lumen intracellular organelle organelle lumen organelle intracellular non-membrane-bounded organelle nuclear lumen non-membrane-bounded organelle protein-containing complex nuclear protein-containing complex spliceosomal complex ribonucleoprotein complex precatalytic spliceosome spliceosomal snRNP complex Sm-like protein family complex U4/U6 x U5 tri-snRNP complex spliceosomal tri-snRNP complex small nuclear ribonucleoprotein complex nucleoplasm box C/D methylation guide snoRNP complex sno(s)RNA-containing ribonucleoprotein complex box C/D RNP complex preribosome small-subunit processome dense fibrillar component U2-type spliceosomal complex U2-type precatalytic spliceosome ribosomal subunit cytosolic large ribosomal subunit cytosolic ribosome ribosome cytoplasm cytosol large ribosomal subunit U4atac snRNP
I [auth Q]	Protein BUD31 homolog	transcription factor binding RNA polymerase II-specific DNA-binding transcription factor binding nuclear receptor binding protein binding binding DNA-binding transcription factor binding transcription coactivator activity transcription regulator activity transcription coregulator activity nuclear receptor coactivator activity protein-macromolecule adaptor activity molecular adaptor activity	cellular response to stimulus regulation of cellular process response to stimulus regulation of signal transduction cell communication regulation of primary metabolic process nucleobase-containing compound metabolic process DNA-templated transcription regulation of RNA metabolic process transcription by RNA polymerase II organic substance biosynthetic process signal transduction regulation of nucleobase-containing compound metabolic process regulation of transcription by RNA polymerase II cellular response to stimulus regulation of cellular process response to stimulus regulation of signal transduction cell communication regulation of primary metabolic process nucleobase-containing compound metabolic process DNA-templated transcription regulation of RNA metabolic process transcription by RNA polymerase II organic substance biosynthetic process signal transduction regulation of nucleobase-containing compound metabolic process regulation of transcription by RNA polymerase II regulation of biological process positive regulation of signaling receptor activity cellular metabolic process primary metabolic process regulation of cellular metabolic process regulation of molecular function organic cyclic compound metabolic process regulation of gene expression biosynthetic process regulation of response to stimulus regulation of DNA-binding transcription factor activity organic cyclic compound biosynthetic process metabolic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription macromolecule metabolic process regulation of metabolic process positive regulation of androgen receptor activity positive regulation of DNA-binding transcription factor activity signaling cellular biosynthetic process regulation of signaling receptor activity RNA metabolic process RNA biosynthetic process positive regulation of molecular function nucleic acid biosynthetic process organic substance metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of signaling biological regulation regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of cellular biosynthetic process regulation of cell communication cellular process RNA splicing mRNA processing mRNA metabolic process RNA splicing, via transesterification reactions mRNA splicing, via spliceosome RNA splicing, via transesterification reactions with bulged adenosine as nucleophile RNA processing	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen protein-containing complex protein-DNA complex membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen protein-containing complex protein-DNA complex intracellular non-membrane-bounded organelle chromatin chromosome non-membrane-bounded organelle U2-type spliceosomal complex catalytic step 2 spliceosome catalytic complex nuclear protein-containing complex U2-type catalytic step 2 spliceosome spliceosomal complex ribonucleoprotein complex
J [auth X]	WW domain-binding protein 4	protein binding binding proline-rich region binding cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding RNA binding organic cyclic compound binding nucleic acid binding	RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process biosynthetic process organic substance biosynthetic process metabolic process RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process biosynthetic process organic substance biosynthetic process metabolic process cellular process RNA processing macromolecule metabolic process mRNA processing mRNA metabolic process RNA splicing, via transesterification reactions mRNA cis splicing, via spliceosome mRNA splicing, via spliceosome RNA splicing, via transesterification reactions with bulged adenosine as nucleophile	membrane-bounded organelle protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle spliceosomal complex organelle ribonucleoprotein complex precatalytic spliceosome membrane-enclosed lumen intracellular organelle lumen membrane-bounded organelle protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle spliceosomal complex organelle ribonucleoprotein complex precatalytic spliceosome membrane-enclosed lumen intracellular organelle lumen nuclear speck nuclear body nucleoplasm organelle lumen nuclear lumen U2-type spliceosomal complex U2-type precatalytic spliceosome
K [auth Z]	MINX pre-mRNA	-	-	-
L [auth r]	Zinc finger matrin-type protein 2	DNA binding binding organic cyclic compound binding nucleic acid binding cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding	RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression mRNA processing mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process biosynthetic process RNA splicing, via transesterification reactions RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression mRNA processing mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process biosynthetic process RNA splicing, via transesterification reactions mRNA splicing, via spliceosome organic substance biosynthetic process metabolic process cellular process RNA splicing, via transesterification reactions with bulged adenosine as nucleophile macromolecule metabolic process RNA processing	membrane-bounded organelle spliceosomal snRNP complex protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex Sm-like protein family complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle U4/U6 x U5 tri-snRNP complex spliceosomal tri-snRNP complex small nuclear ribonucleoprotein complex organelle membrane-bounded organelle spliceosomal snRNP complex protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex Sm-like protein family complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle U4/U6 x U5 tri-snRNP complex spliceosomal tri-snRNP complex small nuclear ribonucleoprotein complex organelle ribonucleoprotein complex membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen U2-type spliceosomal complex U2-type precatalytic spliceosome spliceosomal complex precatalytic spliceosome
N [auth L]	U4/U6 small nuclear ribonucleoprotein Prp31	RNA binding snRNA binding U4atac snRNA binding binding organic cyclic compound binding nucleic acid binding U4 snRNA binding ribonucleoprotein complex binding protein-containing complex binding snRNP binding identical protein binding protein binding	localization cellular localization cellular process ribonucleoprotein complex localization ribonucleoprotein complex biogenesis cellular biosynthetic process RNA metabolic process mRNA processing spliceosomal tri-snRNP complex assembly protein-RNA complex assembly cellular component organization cellular component biogenesis nucleobase-containing compound metabolic process protein-RNA complex organization localization cellular localization cellular process ribonucleoprotein complex localization ribonucleoprotein complex biogenesis cellular biosynthetic process RNA metabolic process mRNA processing spliceosomal tri-snRNP complex assembly protein-RNA complex assembly cellular component organization cellular component biogenesis nucleobase-containing compound metabolic process protein-RNA complex organization cellular component assembly organic substance metabolic process protein-containing complex assembly organic substance biosynthetic process cellular component organization or biogenesis RNA processing RNA splicing protein-containing complex organization spliceosomal snRNP assembly cellular metabolic process primary metabolic process gene expression mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process organic cyclic compound metabolic process biosynthetic process RNA splicing, via transesterification reactions mRNA splicing, via spliceosome metabolic process RNA splicing, via transesterification reactions with bulged adenosine as nucleophile macromolecule metabolic process	membrane-bounded organelle spliceosomal snRNP complex protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex Sm-like protein family complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle U4 snRNP small nuclear ribonucleoprotein complex organelle ribonucleoprotein complex membrane-bounded organelle spliceosomal snRNP complex protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex Sm-like protein family complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle U4 snRNP small nuclear ribonucleoprotein complex organelle ribonucleoprotein complex spliceosomal complex precatalytic spliceosome membrane-enclosed lumen intracellular organelle lumen nuclear speck nuclear body nucleoplasm organelle lumen nuclear lumen U4/U6 x U5 tri-snRNP complex spliceosomal tri-snRNP complex U2-type spliceosomal complex Cajal body U2-type precatalytic spliceosome U4atac snRNP histone methyltransferase complex catalytic complex MLL1/2 complex transferase complex MLL1 complex methyltransferase complex
O [auth F]	U4/U6 small nuclear ribonucleoprotein Prp4	RNA binding U6 snRNA binding snRNA binding binding organic cyclic compound binding nucleic acid binding U4 snRNA binding	RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process biosynthetic process organic substance biosynthetic process metabolic process RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process biosynthetic process organic substance biosynthetic process metabolic process cellular process RNA processing macromolecule metabolic process mRNA processing mRNA metabolic process RNA splicing, via transesterification reactions mRNA splicing, via spliceosome RNA splicing, via transesterification reactions with bulged adenosine as nucleophile	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen cellular anatomical entity intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck nuclear body intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen cellular anatomical entity intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck nuclear body intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen Cajal body U2-type spliceosomal complex protein-containing complex nuclear protein-containing complex U2-type precatalytic spliceosome spliceosomal complex ribonucleoprotein complex precatalytic spliceosome spliceosomal snRNP complex Sm-like protein family complex small nuclear ribonucleoprotein complex U4/U6 snRNP U4/U6 x U5 tri-snRNP complex spliceosomal tri-snRNP complex
P [auth N]	Pre-mRNA-processing factor 6	ribonucleoprotein complex binding protein-containing complex binding binding RNA binding organic cyclic compound binding nucleic acid binding identical protein binding protein binding	localization macromolecule localization RNA localization RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process localization macromolecule localization RNA localization RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process biosynthetic process organic substance biosynthetic process metabolic process cellular process RNA processing macromolecule metabolic process ribonucleoprotein complex biogenesis mRNA processing protein-RNA complex assembly cellular component organization cellular component biogenesis spliceosomal complex assembly protein-RNA complex organization cellular component assembly protein-containing complex assembly cellular component organization or biogenesis protein-containing complex organization mRNA metabolic process RNA splicing, via transesterification reactions mRNA splicing, via spliceosome RNA splicing, via transesterification reactions with bulged adenosine as nucleophile spliceosomal tri-snRNP complex assembly spliceosomal snRNP assembly regulation of cellular process positive regulation of macromolecule biosynthetic process regulation of primary metabolic process positive regulation of metabolic process DNA-templated transcription regulation of RNA metabolic process transcription by RNA polymerase II positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process regulation of transcription by RNA polymerase II regulation of biological process positive regulation of nucleobase-containing compound metabolic process regulation of cellular metabolic process positive regulation of transcription by RNA polymerase II positive regulation of RNA metabolic process regulation of gene expression organic cyclic compound biosynthetic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription regulation of metabolic process positive regulation of DNA-templated transcription positive regulation of biological process positive regulation of cellular metabolic process RNA biosynthetic process nucleic acid biosynthetic process positive regulation of biosynthetic process positive regulation of cellular process regulation of RNA biosynthetic process regulation of biosynthetic process biological regulation regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process regulation of cellular biosynthetic process positive regulation of RNA biosynthetic process positive regulation of cellular biosynthetic process	membrane cellular anatomical entity membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck nuclear body intracellular organelle nucleoplasm organelle lumen organelle membrane cellular anatomical entity membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck nuclear body intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen catalytic step 2 spliceosome protein-containing complex catalytic complex nuclear protein-containing complex spliceosomal complex ribonucleoprotein complex U2-type spliceosomal complex U2-type precatalytic spliceosome precatalytic spliceosome U5 snRNP spliceosomal snRNP complex Sm-like protein family complex small nuclear ribonucleoprotein complex U4/U6 x U5 tri-snRNP complex spliceosomal tri-snRNP complex
Q [auth A]	Pre-mRNA-processing-splicing factor 8	RNA binding snRNA binding binding organic cyclic compound binding nucleic acid binding U1 snRNA binding U6 snRNA binding polyubiquitin modification-dependent protein binding protein binding modification-dependent protein binding K63-linked polyubiquitin modification-dependent protein binding U5 snRNA binding U2 snRNA binding pre-mRNA binding RNA binding snRNA binding binding organic cyclic compound binding nucleic acid binding U1 snRNA binding U6 snRNA binding polyubiquitin modification-dependent protein binding protein binding modification-dependent protein binding K63-linked polyubiquitin modification-dependent protein binding U5 snRNA binding U2 snRNA binding pre-mRNA binding pre-mRNA intronic binding	RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process RNA splicing, via transesterification reactions biosynthetic process organic substance biosynthetic process RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process RNA splicing, via transesterification reactions biosynthetic process organic substance biosynthetic process metabolic process cellular process RNA processing macromolecule metabolic process ribonucleoprotein complex biogenesis mRNA processing spliceosomal tri-snRNP complex assembly protein-RNA complex assembly cellular component organization cellular component biogenesis protein-RNA complex organization cellular component assembly protein-containing complex assembly cellular component organization or biogenesis protein-containing complex organization spliceosomal snRNP assembly mRNA metabolic process mRNA splicing, via spliceosome RNA splicing, via transesterification reactions with bulged adenosine as nucleophile cellular response to stimulus response to organic substance biological process involved in interspecies interaction between organisms response to stimulus response to lipid response to other organism cellular response to lipopolysaccharide response to oxygen-containing compound response to external stimulus cellular response to molecule of bacterial origin response to lipopolysaccharide cellular response to oxygen-containing compound response to biotic stimulus cellular response to biotic stimulus cellular response to chemical stimulus response to chemical response to bacterium cellular response to lipid cellular response to organic substance response to external biotic stimulus response to molecule of bacterial origin response to cytokine cellular response to tumor necrosis factor cellular response to cytokine stimulus response to tumor necrosis factor	membrane cellular anatomical entity membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck nuclear body intracellular organelle nucleoplasm organelle lumen organelle membrane cellular anatomical entity membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck nuclear body intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen U2-type spliceosomal complex protein-containing complex catalytic complex nuclear protein-containing complex U2-type catalytic step 1 spliceosome spliceosomal complex ribonucleoprotein complex catalytic step 1 spliceosome catalytic step 2 spliceosome spliceosomal snRNP complex Sm-like protein family complex U4/U6 x U5 tri-snRNP complex spliceosomal tri-snRNP complex small nuclear ribonucleoprotein complex U2-type precatalytic spliceosome precatalytic spliceosome U5 snRNP U2-type catalytic step 2 spliceosome
R [auth S]	U4/U6.U5 tri-snRNP-associated protein 1	RNA binding binding organic cyclic compound binding nucleic acid binding	ribonucleoprotein complex biogenesis cellular biosynthetic process RNA metabolic process rRNA processing nucleobase-containing compound metabolic process cellular component biogenesis ribosome biogenesis organic substance metabolic process organic substance biosynthetic process cellular component organization or biogenesis RNA processing rRNA metabolic process maturation of 5S rRNA cellular metabolic process ribonucleoprotein complex biogenesis cellular biosynthetic process RNA metabolic process rRNA processing nucleobase-containing compound metabolic process cellular component biogenesis ribosome biogenesis organic substance metabolic process organic substance biosynthetic process cellular component organization or biogenesis RNA processing rRNA metabolic process maturation of 5S rRNA cellular metabolic process primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process organic cyclic compound metabolic process biosynthetic process nucleic acid catabolic process metabolic process cellular process macromolecule metabolic process mRNA processing RNA splicing mRNA metabolic process RNA splicing, via transesterification reactions mRNA cis splicing, via spliceosome mRNA splicing, via spliceosome RNA splicing, via transesterification reactions with bulged adenosine as nucleophile multicellular organismal process regulation of leukocyte differentiation regulation of cellular process regulation of leukocyte activation regulation of cell activation mononuclear cell differentiation regulation of cell differentiation lymphocyte differentiation positive regulation of T cell differentiation regulation of cell development positive regulation of developmental process multicellular organism development positive regulation of cell activation T cell activation cell differentiation anatomical structure development positive regulation of leukocyte activation T cell differentiation regulation of immune system process positive regulation of immune system process developmental process regulation of biological process positive regulation of T cell activation positive regulation of cell development regulation of leukocyte cell-cell adhesion positive regulation of multicellular organismal process leukocyte differentiation cellular developmental process regulation of developmental process positive regulation of biological process cell development positive regulation of leukocyte cell-cell adhesion lymphocyte activation leukocyte cell-cell adhesion leukocyte activation positive regulation of cell-cell adhesion regulation of T cell differentiation positive regulation of lymphocyte activation cell adhesion regulation of cytotoxic T cell differentiation cell-cell adhesion positive regulation of hemopoiesis positive regulation of cell differentiation regulation of multicellular organismal process regulation of cell-cell adhesion positive regulation of cellular process regulation of lymphocyte differentiation regulation of multicellular organismal development cytotoxic T cell differentiation hemopoiesis positive regulation of cell adhesion regulation of cell adhesion cell activation biological regulation regulation of T cell activation immune system process regulation of hemopoiesis positive regulation of cytotoxic T cell differentiation positive regulation of leukocyte differentiation positive regulation of lymphocyte differentiation regulation of lymphocyte activation protein-RNA complex assembly cellular component organization protein-RNA complex organization cellular component assembly protein-containing complex assembly protein-containing complex organization spliceosomal snRNP assembly	membrane-bounded organelle intracellular organelle intracellular anatomical structure Golgi apparatus organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle endomembrane system nucleus membrane-enclosed lumen intracellular organelle lumen nuclear speck nuclear body membrane-bounded organelle intracellular organelle intracellular anatomical structure Golgi apparatus organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle endomembrane system nucleus membrane-enclosed lumen intracellular organelle lumen nuclear speck nuclear body nucleoplasm organelle lumen nuclear lumen Cajal body catalytic step 2 spliceosome protein-containing complex catalytic complex nuclear protein-containing complex spliceosomal complex ribonucleoprotein complex U2-type spliceosomal complex U2-type precatalytic spliceosome precatalytic spliceosome cytosol spliceosomal snRNP complex Sm-like protein family complex U4/U6 x U5 tri-snRNP complex spliceosomal tri-snRNP complex small nuclear ribonucleoprotein complex
S [auth T]	Transcription elongation regulator 1	transcription corepressor activity transcription regulator activity transcription coregulator activity protein-macromolecule adaptor activity molecular adaptor activity transcription factor binding RNA polymerase II-specific DNA-binding transcription factor binding protein binding binding DNA-binding transcription factor binding transcription coactivator activity transcription elongation factor activity RNA polymerase binding enzyme binding transcription corepressor activity transcription regulator activity transcription coregulator activity protein-macromolecule adaptor activity molecular adaptor activity transcription factor binding RNA polymerase II-specific DNA-binding transcription factor binding protein binding binding DNA-binding transcription factor binding transcription coactivator activity transcription elongation factor activity RNA polymerase binding enzyme binding RNA binding organic cyclic compound binding nucleic acid binding ubiquitin-like protein conjugating enzyme binding identical protein binding	RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process biosynthetic process organic substance biosynthetic process metabolic process RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process biosynthetic process organic substance biosynthetic process metabolic process cellular process RNA processing macromolecule metabolic process regulation of cellular process negative regulation of biological process negative regulation of transcription elongation by RNA polymerase II negative regulation of cellular metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process DNA-templated transcription regulation of RNA metabolic process transcription by RNA polymerase II negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of DNA-templated transcription elongation negative regulation of DNA-templated transcription regulation of biological process regulation of transcription elongation by RNA polymerase II negative regulation of metabolic process regulation of cellular metabolic process negative regulation of cellular biosynthetic process negative regulation of DNA-templated transcription, elongation regulation of gene expression negative regulation of macromolecule biosynthetic process organic cyclic compound biosynthetic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic process transcription elongation by RNA polymerase II RNA biosynthetic process nucleic acid biosynthetic process negative regulation of cellular process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic process regulation of biosynthetic process biological regulation regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process regulation of cellular biosynthetic process DNA-templated transcription elongation negative regulation of biosynthetic process positive regulation of macromolecule biosynthetic process positive regulation of metabolic process positive regulation of macromolecule metabolic process regulation of transcription by RNA polymerase II positive regulation of nucleobase-containing compound metabolic process positive regulation of transcription by RNA polymerase II positive regulation of RNA metabolic process positive regulation of DNA-templated transcription positive regulation of transcription elongation by RNA polymerase II positive regulation of biological process positive regulation of cellular metabolic process positive regulation of biosynthetic process positive regulation of DNA-templated transcription, elongation positive regulation of cellular process positive regulation of RNA biosynthetic process positive regulation of cellular biosynthetic process negative regulation of transcription by RNA polymerase II mRNA processing mRNA metabolic process	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen cellular anatomical entity intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck nuclear body intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen
T [auth 4]	U4 snRNA	-	-	-
U [auth J]	U4/U6 small nuclear ribonucleoprotein Prp3	RNA binding binding organic cyclic compound binding nucleic acid binding identical protein binding protein binding	RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process biosynthetic process organic substance biosynthetic process metabolic process RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process biosynthetic process organic substance biosynthetic process metabolic process cellular process RNA processing macromolecule metabolic process mRNA processing mRNA metabolic process RNA splicing, via transesterification reactions mRNA splicing, via spliceosome RNA splicing, via transesterification reactions with bulged adenosine as nucleophile ribonucleoprotein complex biogenesis spliceosomal tri-snRNP complex assembly protein-RNA complex assembly cellular component organization cellular component biogenesis protein-RNA complex organization cellular component assembly protein-containing complex assembly cellular component organization or biogenesis protein-containing complex organization spliceosomal snRNP assembly	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen cellular anatomical entity intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck nuclear body intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen cellular anatomical entity intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck nuclear body intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen Cajal body U2-type spliceosomal complex protein-containing complex nuclear protein-containing complex U2-type precatalytic spliceosome spliceosomal complex ribonucleoprotein complex precatalytic spliceosome cytoplasm cytosol spliceosomal snRNP complex Sm-like protein family complex U4/U6 x U5 tri-snRNP complex spliceosomal tri-snRNP complex small nuclear ribonucleoprotein complex
M [auth s]	Ubiquitin-like protein 5	protein tag activity molecular tag activity	organic substance metabolic process organonitrogen compound metabolic process macromolecule modification metabolic process primary metabolic process protein metabolic process macromolecule metabolic process protein modification process RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process gene expression mRNA processing organic substance metabolic process organonitrogen compound metabolic process macromolecule modification metabolic process primary metabolic process protein metabolic process macromolecule metabolic process protein modification process RNA splicing cellular biosynthetic process cellular metabolic process RNA metabolic process gene expression mRNA processing mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process biosynthetic process RNA splicing, via transesterification reactions mRNA splicing, via spliceosome organic substance biosynthetic process cellular process RNA splicing, via transesterification reactions with bulged adenosine as nucleophile RNA processing protein localization regulation of localization establishment of protein localization cellular localization regulation of cellular process regulation of protein localization protein targeting regulation of protein targeting to mitochondrion positive regulation of biological process positive regulation of establishment of protein localization localization cellular macromolecule localization positive regulation of protein targeting to mitochondrion positive regulation of cellular process regulation of biological process regulation of establishment of protein localization biological regulation establishment of localization regulation of establishment of protein localization to mitochondrion establishment of protein localization to organelle regulation of protein targeting regulation of cellular localization macromolecule localization protein localization to organelle protein localization to mitochondrion positive regulation of protein localization protein targeting to mitochondrion establishment of protein localization to mitochondrion positive regulation of establishment of protein localization to mitochondrion	membrane-bounded organelle Cajal body intracellular anatomical structure nucleus membrane-enclosed lumen cellular anatomical entity intracellular membrane-bounded organelle intracellular organelle lumen nuclear body intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen membrane-bounded organelle Cajal body intracellular anatomical structure nucleus membrane-enclosed lumen cellular anatomical entity intracellular membrane-bounded organelle intracellular organelle lumen nuclear body intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C [auth 7]	IPR045146	Splicing factor 3A subunit 1	Family
C [auth 7]	IPR035967	SWAP/Surp superfamily	Homologous Superfamily
C [auth 7]	IPR000061	SWAP/Surp	Domain
C [auth 7]	IPR000626	Ubiquitin-like domain	Domain
C [auth 7]	IPR035563	Splicing factor 3A subunit 1, ubiquitin domain	Domain
C [auth 7]	IPR029071	Ubiquitin-like domain superfamily	Homologous Superfamily
C [auth 7]	IPR022030	Splicing factor 3A subunit 1, conserved domain	Domain
D [auth C]	IPR005517	Translation elongation factor EFG/EF2, domain IV	Domain
D [auth C]	IPR000795	Translational (tr)-type GTP-binding domain	Domain
D [auth C]	IPR035647	EF-G domain III/V-like	Homologous Superfamily
D [auth C]	IPR035655	116kDa U5 small nuclear ribonucleoprotein component, C-terminal	Domain
D [auth C]	IPR041095	Elongation Factor G, domain II	Domain
D [auth C]	IPR004161	Translation elongation factor EFTu-like, domain 2	Domain
D [auth C]	IPR009000	Translation protein, beta-barrel domain superfamily	Homologous Superfamily
D [auth C]	IPR020568	Ribosomal protein uS5 domain 2-type superfamily	Homologous Superfamily
D [auth C]	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
D [auth C]	IPR014721	Small ribosomal subunit protein uS5 domain 2-type fold, subgroup	Homologous Superfamily
D [auth C]	IPR031950	116kDa U5 small nuclear ribonucleoprotein component, N-terminal	Domain
D [auth C]	IPR000640	Elongation factor EFG, domain V-like	Domain
D [auth C]	IPR044121	Snu114, GTP-binding domain	Domain
D [auth C]	IPR005225	Small GTP-binding protein domain	Domain
E [auth D]	IPR004123	Dim1 family	Family
E [auth D]	IPR036249	Thioredoxin-like superfamily	Homologous Superfamily
F [auth I]	IPR024767	Pre-mRNA-splicing factor 38, C-terminal	Domain
F [auth I]	IPR005037	Pre-mRNA-splicing factor 38	Family
G [auth K]	IPR033194	Microfibrillar-associated protein 1	Family
G [auth K]	IPR009730	Micro-fibrillar-associated protein 1, C-terminal	Domain
H [auth M]	IPR002415	H/ACA ribonucleoprotein complex, subunit Nhp2-like	Family
H [auth M]	IPR029064	Ribosomal protein eL30-like superfamily	Homologous Superfamily
H [auth M]	IPR018492	Ribosomal protein eL8/Nhp2 family	Family
H [auth M]	IPR004038	Ribosomal protein eL8/eL30/eS12/Gadd45	Domain
H [auth M]	IPR004037	Large ribosomal subunit protein eL8-like, conserved site	Conserved Site
I [auth Q]	IPR001748	Pre-mRNA-splicing factor BUD31	Family
I [auth Q]	IPR018230	BUD31/G10-related, conserved site	Conserved Site
J [auth X]	IPR003604	Matrin/U1-C-like, C2H2-type zinc finger	Domain
J [auth X]	IPR040023	WW domain-binding protein 4	Family
J [auth X]	IPR036236	Zinc finger C2H2 superfamily	Homologous Superfamily
J [auth X]	IPR036020	WW domain superfamily	Homologous Superfamily
J [auth X]	IPR000690	Matrin/U1-C, C2H2-type zinc finger	Domain
J [auth X]	IPR001202	WW domain	Domain
J [auth X]	IPR013085	U1-C, C2H2-type zinc finger	Domain
L [auth r]	IPR003604	Matrin/U1-C-like, C2H2-type zinc finger	Domain
L [auth r]	IPR036236	Zinc finger C2H2 superfamily	Homologous Superfamily
L [auth r]	IPR040107	U4/U6.U5 small nuclear ribonucleoprotein component Snu23	Family
L [auth r]	IPR022755	Zinc finger, double-stranded RNA binding	Domain
N [auth L]	IPR042239	Nop, C-terminal domain	Homologous Superfamily
N [auth L]	IPR019175	Prp31 C-terminal	Domain
N [auth L]	IPR002687	Nop domain	Domain
N [auth L]	IPR012976	NOSIC	Domain
N [auth L]	IPR027105	U4/U6 small nuclear ribonucleoprotein Prp31	Family
N [auth L]	IPR036070	Nop domain superfamily	Homologous Superfamily
O [auth F]	IPR019775	WD40 repeat, conserved site	Conserved Site
O [auth F]	IPR036322	WD40-repeat-containing domain superfamily	Homologous Superfamily
O [auth F]	IPR036285	PRP4-like superfamily	Homologous Superfamily
O [auth F]	IPR014906	Pre-mRNA processing factor 4 (PRP4)-like	Domain
O [auth F]	IPR001680	WD40 repeat	Repeat
O [auth F]	IPR020472	G-protein beta WD-40 repeat	Repeat
O [auth F]	IPR015943	WD40/YVTN repeat-like-containing domain superfamily	Homologous Superfamily
P [auth N]	IPR011990	Tetratricopeptide-like helical domain superfamily	Homologous Superfamily
P [auth N]	IPR010491	PRP1 splicing factor, N-terminal	Domain
P [auth N]	IPR003107	HAT (Half-A-TPR) repeat	Repeat
P [auth N]	IPR045075	Pre-mRNA-splicing factor Syf1-like	Family
P [auth N]	IPR019734	Tetratricopeptide repeat	Repeat
Q [auth A]	IPR012984	PROCT domain	Domain
Q [auth A]	IPR012591	PRO8NT domain	Domain
Q [auth A]	IPR019580	Pre-mRNA-processing-splicing factor 8, U6-snRNA-binding	Domain
Q [auth A]	IPR027652	Pre-mRNA-processing-splicing factor 8	Family
Q [auth A]	IPR043172	Prp8 RNase domain IV, palm region	Homologous Superfamily
Q [auth A]	IPR012592	PROCN domain	Domain
Q [auth A]	IPR012337	Ribonuclease H-like superfamily	Homologous Superfamily
Q [auth A]	IPR043173	Prp8 RNase domain IV, fingers region	Homologous Superfamily
Q [auth A]	IPR021983	PRP8 domain IV core	Domain
Q [auth A]	IPR019581	Pre-mRNA-processing-splicing factor 8, U5-snRNA-binding	Domain
Q [auth A]	IPR037518	MPN domain	Domain
Q [auth A]	IPR019582	RNA recognition motif, spliceosomal PrP8	Domain
Q [auth A]	IPR042516	Pre-mRNA-processing-splicing factor 8, U5-snRNA-binding domain superfamily	Homologous Superfamily
Q [auth A]	IPR000555	JAB1/MPN/MOV34 metalloenzyme domain	Domain
R [auth S]	IPR045347	HIND motif	Conserved Site
R [auth S]	IPR005011	SNU66/SART1 family	Family
S [auth T]	IPR036517	FF domain superfamily	Homologous Superfamily
S [auth T]	IPR002713	FF domain	Domain
S [auth T]	IPR036020	WW domain superfamily	Homologous Superfamily
S [auth T]	IPR001202	WW domain	Domain
S [auth T]	IPR045148	Transcription elongation regulator 1-like	Family
U [auth J]	IPR027104	U4/U6 small nuclear ribonucleoprotein Prp3	Family
U [auth J]	IPR002483	PWI domain	Domain
U [auth J]	IPR013881	Pre-mRNA-splicing factor 3 domain	Domain
U [auth J]	IPR036483	PWI domain superfamily	Homologous Superfamily
U [auth J]	IPR010541	Small nuclear ribonucleoprotein Prp3, C-terminal domain	Domain
M [auth s]	IPR039732	Ubiquitin-like modifier Hub1/Ubl5	Family
M [auth s]	IPR029071	Ubiquitin-like domain superfamily	Homologous Superfamily
M [auth s]	IPR000626	Ubiquitin-like domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
C [auth 7]	Pharos: Q15459	astrocytic tumor heart disease oligodendroglioma psoriasis colorectal cancer large cell medulloblastoma osteosarcoma rheumatoid arthritis glioblastoma myopathy ovarian cancer subependymal giant cell astrocytoma
D [auth C]	Pharos: Q15029	mandibulofacial dysostosis-microcephaly syndrome intellectual disability choanal atresia large cell medulloblastoma Nager acrofacial dysostosis diabetes mellitus ovarian cancer microcephaly Primary microcephaly
E [auth D]	Pharos: P83876	Burn-Mckeown syndrome choanal atresia-hearing loss-cardiac defects-craniofacial dysmorphism syndrome astrocytic tumor choanal atresia glioblastoma malignant ependymoma ovarian cancer atypical teratoid rhabdoid tumor intellectual disability malignant glioma plasma cell myeloma diabetes mellitus lung cancer osteosarcoma psoriasis
F [auth I]	Pharos: Q8NAV1	non-small cell lung carcinoma tuberculosis osteosarcoma ovarian cancer
G [auth K]	Pharos: P55081	metabolic syndrome X ovarian cancer psoriasis
H [auth M]	Pharos: P55769	glioblastoma ovarian cancer lung cancer psoriasis osteosarcoma Sjogren syndrome
I [auth Q]	Pharos: P41223	attention deficit hyperactivity disorder, inattentive type plasma cell myeloma glioblastoma ovarian cancer
J [auth X]	Pharos: O75554	astrocytic tumor ductal breast carcinoma in situ invasive ductal breast carcinoma Malignant neoplasm of breast ovarian cancer systemic lupus erythematosus Crohn disease gastric carcinoma large cell medulloblastoma oligodendroglioma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia dermatomyositis glioblastoma malignant glioma osteosarcoma astrocytic tumor ductal breast carcinoma in situ invasive ductal breast carcinoma Malignant neoplasm of breast ovarian cancer systemic lupus erythematosus Crohn disease gastric carcinoma large cell medulloblastoma oligodendroglioma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia dermatomyositis glioblastoma malignant glioma osteosarcoma spina bifida
L [auth r]	Pharos: Q96NC0	atypical teratoid rhabdoid tumor ovarian cancer glioblastoma large cell medulloblastoma
N [auth L]	Pharos: Q8WWY3	retinitis pigmentosa retinitis pigmentosa 11 alcoholic liver cirrhosis malignant ependymoma ovarian cancer cone-rod dystrophy medulloblastoma psoriasis Gaucher disease night blindness retinal degeneration Takayasu arteritis
O [auth F]	Pharos: O43172	retinitis pigmentosa 70 retinitis pigmentosa substance-related disorder acute myeloid leukemia Drug abuse substance dependence aggressive systemic mastocytosis drug dependence malignant mesothelioma osteosarcoma retinal degeneration substance abuse cone-rod dystrophy mast cell leukemia ovarian cancer
P [auth N]	Pharos: O94906	retinitis pigmentosa retinitis pigmentosa 60 cone-rod dystrophy heart disease medulloblastoma ovarian cancer retinal degeneration rheumatoid arthritis Gaucher disease large cell medulloblastoma metabolic syndrome X pituitary cancer glioblastoma malignant ependymoma oligodendroglioma retinitis pigmentosa retinitis pigmentosa 60 cone-rod dystrophy heart disease medulloblastoma ovarian cancer retinal degeneration rheumatoid arthritis Gaucher disease large cell medulloblastoma metabolic syndrome X pituitary cancer glioblastoma malignant ependymoma oligodendroglioma psoriasis
Q [auth A]	Pharos: Q6P2Q9	retinitis pigmentosa retinitis pigmentosa 13 HIV infectious disease Acute Cerebrovascular Accidents brain aneurysm cone-rod dystrophy malignant ependymoma pancreatic ductal adenocarcinoma acute myeloid leukemia diabetes mellitus oligodendroglioma retinal degeneration astrocytic tumor cerebrovascular disorder glioblastoma retinitis pigmentosa retinitis pigmentosa 13 HIV infectious disease Acute Cerebrovascular Accidents brain aneurysm cone-rod dystrophy malignant ependymoma pancreatic ductal adenocarcinoma acute myeloid leukemia diabetes mellitus oligodendroglioma retinal degeneration astrocytic tumor cerebrovascular disorder glioblastoma Hodgkins lymphoma ovarian cancer
R [auth S]	Pharos: O43290	acute myeloid leukemia Crohn disease inflammatory bowel disease ovarian cancer Sjogren syndrome astrocytic tumor diabetes mellitus malignant mesothelioma plasma cell myeloma skin basal cell carcinoma congestive heart failure glioblastoma osteosarcoma primary cutaneous T-cell non-Hodgkin lymphoma
S [auth T]	Pharos: O14776	astrocytic tumor pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia osteosarcoma pancreatic intraductal papillary-mucinous carcinoma
U [auth J]	Pharos: O43395	retinitis pigmentosa retinitis pigmentosa 18 anorexia nervosa dermatomyositis oligodendroglioma ovarian cancer plasma cell myeloma atopic eczema malignant mesothelioma osteoarthritis pancreatic intraductal papillary-mucinous carcinoma psoriasis cone-rod dystrophy medulloblastoma osteosarcoma retinitis pigmentosa retinitis pigmentosa 18 anorexia nervosa dermatomyositis oligodendroglioma ovarian cancer plasma cell myeloma atopic eczema malignant mesothelioma osteoarthritis pancreatic intraductal papillary-mucinous carcinoma psoriasis cone-rod dystrophy medulloblastoma osteosarcoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia retinal degeneration
M [auth s]	Pharos: Q9BZL1	plasma cell myeloma psoriasis

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.

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8Q7N

cryo-EM structure of the human spliceosomal B complex protomer (tri-snRNP core region)

External Resource: Annotation

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

InterPro: Protein Family Classification InterPro Database Homepage

Pharos: Disease Associations Pharos Homepage Annotation