Annotations: 3BEG

Crystal structure of SR protein kinase 1 complexed to its substrate ASF/SF2

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d3begb_	Alpha and beta proteins (a+b)	Ferredoxin-like	RNA-binding domain, RBD, aka RNA recognition motif (RRM)	Canonical RBD	Splicing factor, arginine/serine-rich 1, SFRS1	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	RRM_1	e3begB1	A: a+b two layers	X: Alpha-beta plaits	H: RNA-binding domain, RBD	T: RNA-binding domain, RBD	F: RRM_1	ECOD (v295.2)
A	Cellulase	e3begA1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: Cellulase	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.30.70.330	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	RRM (RNA recognition motif) domain	CATH (4.3.0)
A	3.30.200.20	Alpha Beta	2-Layer Sandwich	Phosphorylase Kinase	domain 1	CATH (4.3.0)
A	1.10.510.10	Mainly Alpha	Orthogonal Bundle	Transferase(Phosphotransferase)	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B	PF00076	RNA recognition motif (RRM_1)	RNA recognition motif	The RRM motif (a.k.a. RRM, RBD, or RNP domain) is probably diagnostic of an RNA binding protein. RRMs are found in a variety of RNA binding proteins, including various hnRNP proteins, proteins implicated in regulation of alternative splicing, and pro ...	The RRM motif (a.k.a. RRM, RBD, or RNP domain) is probably diagnostic of an RNA binding protein. RRMs are found in a variety of RNA binding proteins, including various hnRNP proteins, proteins implicated in regulation of alternative splicing, and protein components of snRNPs. The motif also appears in a few single stranded DNA binding proteins. The RRM structure consists of four strands and two helices arranged in an alpha/beta sandwich, with a third helix present during RNA binding in some cases The C-terminal beta strand (4th strand) and final helix are hard to align and have been omitted in the SEED alignment The LA proteins (Swiss:P05455) have an N terminal rrm which is included in the seed. There is a second region towards the C terminus that has some features characteristic of a rrm but does not appear to have the important structural core of a rrm. The LA proteins (Swiss:P05455) are one of the main autoantigens in Systemic lupus erythematosus (SLE), an autoimmune disease.	Domain
A	PF00069	Protein kinase domain (Pkinase)	Protein kinase domain		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B	Splicing factor, arginine/serine-rich 1	DNA topoisomerase binding protein binding binding enzyme binding RNA binding nucleic acid binding mRNA binding RS domain binding protein domain specific binding	ribonucleoprotein complex biogenesis RNA metabolic process mRNA processing protein-RNA complex assembly cellular component organization cellular component biogenesis nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process spliceosomal complex assembly protein-RNA complex organization cellular component assembly protein-containing complex assembly cellular component organization or biogenesis ribonucleoprotein complex biogenesis RNA metabolic process mRNA processing protein-RNA complex assembly cellular component organization cellular component biogenesis nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process spliceosomal complex assembly protein-RNA complex organization cellular component assembly protein-containing complex assembly cellular component organization or biogenesis RNA processing mRNA splice site recognition RNA splicing protein-containing complex organization primary metabolic process gene expression nucleobase-containing compound biosynthetic process mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process biosynthetic process RNA splicing, via transesterification reactions mRNA splicing, via spliceosome cellular process metabolic process RNA splicing, via transesterification reactions with bulged adenosine as nucleophile macromolecule metabolic process regulation of cellular process alternative mRNA splicing, via spliceosome regulation of mRNA splicing, via spliceosome regulation of primary metabolic process regulation of RNA metabolic process regulation of nucleobase-containing compound metabolic process regulation of biosynthetic process regulation of mRNA processing regulation of biological process biological regulation regulation of macromolecule metabolic process regulation of RNA splicing regulation of gene expression regulation of alternative mRNA splicing, via spliceosome regulation of macromolecule biosynthetic process regulation of mRNA metabolic process regulation of metabolic process localization protein localization to organelle macromolecule localization protein localization to P-body intracellular protein localization regulation of lipid metabolic process positive regulation of biological process lipid biosynthetic process positive regulation of metabolic process positive regulation of lipid biosynthetic process positive regulation of biosynthetic process positive regulation of lipid metabolic process regulation of lipid biosynthetic process positive regulation of cellular process lipid metabolic process cellular response to stimulus response to stimulus cell surface receptor signaling pathway signaling cellular response to interleukin-17 response to interleukin-17 response to cytokine cytokine-mediated signaling pathway cell communication response to peptide interleukin-17-mediated signaling pathway response to chemical cellular response to cytokine stimulus signal transduction negative regulation of biological process positive regulation of macromolecule biosynthetic process post-transcriptional regulation of gene expression negative regulation of nucleobase-containing compound metabolic process positive regulation of macromolecule metabolic process regulation of biological quality RNA catabolic process mRNA stabilization mRNA catabolic process negative regulation of metabolic process nucleobase-containing compound catabolic process negative regulation of gene expression negative regulation of macromolecule biosynthetic process nucleic acid catabolic process negative regulation of RNA metabolic process catabolic process macromolecule catabolic process negative regulation of mRNA metabolic process regulation of mRNA catabolic process negative regulation of cellular process negative regulation of macromolecule metabolic process negative regulation of catabolic process negative regulation of mRNA catabolic process negative regulation of RNA catabolic process regulation of catabolic process regulation of mRNA stability RNA stabilization negative regulation of biosynthetic process positive regulation of gene expression regulation of RNA stability positive regulation of RNA splicing mRNA 5'-splice site recognition mRNA cis splicing, via spliceosome protein localization to nucleus	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck ribonucleoprotein granule intracellular organelle nuclear body cellular anatomical structure nucleoplasm organelle lumen membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck ribonucleoprotein granule intracellular organelle nuclear body cellular anatomical structure nucleoplasm organelle lumen organelle membraneless organelle supramolecular complex nuclear ribonucleoprotein granule nuclear lumen catalytic step 2 spliceosome protein-containing complex catalytic complex nuclear protein-containing complex spliceosomal complex ribonucleoprotein complex cytoplasm cytosol chromatin chromosome
A	Serine/threonine-protein kinase SRPK1	RNA binding binding nucleic acid binding catalytic activity, acting on a protein kinase activity protein kinase activity transferase activity catalytic activity protein serine kinase activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups cation binding magnesium ion binding ion binding RNA binding binding nucleic acid binding catalytic activity, acting on a protein kinase activity protein kinase activity transferase activity catalytic activity protein serine kinase activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups cation binding magnesium ion binding ion binding metal ion binding small molecule binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding protein serine/threonine kinase activity	cellular process cell cycle chromosome segregation cell cycle process biological process involved in interspecies interaction between organisms response to stimulus immune response response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus immune system process defense response to other organism cellular process cell cycle chromosome segregation cell cycle process biological process involved in interspecies interaction between organisms response to stimulus immune response response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus immune system process defense response to other organism response to stress innate immune response response to external biotic stimulus RNA splicing RNA metabolic process primary metabolic process gene expression nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process nucleic acid biosynthetic process biosynthetic process metabolic 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 regulation of cellular process regulation of mRNA splicing, via spliceosome regulation of primary metabolic process regulation of RNA metabolic process regulation of nucleobase-containing compound metabolic process regulation of biosynthetic process regulation of mRNA processing regulation of biological process biological regulation regulation of macromolecule metabolic process regulation of RNA splicing regulation of gene expression regulation of macromolecule biosynthetic process regulation of mRNA metabolic process regulation of metabolic process spermatid development spermatid differentiation sexual reproduction cellular developmental process spermatogenesis reproductive process cell development cellular process involved in reproduction in multicellular organism developmental process involved in reproduction gamete generation cell differentiation chromatin organization anatomical structure development sperm DNA condensation developmental process multicellular organismal reproductive process male gamete generation nucleus organization organelle organization germ cell development spermatid nucleus differentiation protein phosphorylation phosphorylation macromolecule modification phosphate-containing compound metabolic process protein metabolic process protein modification process positive regulation of viral genome replication positive regulation of viral process positive regulation of biological process viral life cycle regulation of viral life cycle regulation of viral process viral genome replication viral process regulation of viral genome replication negative regulation of viral genome replication negative regulation of biological process negative regulation of viral process cellular response to stimulus signaling signal transduction intracellular signal transduction cell communication	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle cellular anatomical structure organelle lumen organelle nuclear lumen nuclear matrix intracellular membraneless organelle nuclear speck membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle cellular anatomical structure organelle lumen organelle nuclear lumen nuclear matrix intracellular membraneless organelle nuclear speck ribonucleoprotein granule nuclear body nucleoplasm membraneless organelle supramolecular complex nuclear ribonucleoprotein granule cytoplasm cytosol chromatin chromosome

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B	IPR034520	SRSF1, RNA recognition motif 1	Domain
B	IPR029538	Serine/arginine-rich splicing factor 1, RNA recognition motif 2	Domain
B	IPR000504	RNA recognition motif domain	Domain
B	IPR012677	Nucleotide-binding alpha-beta plait domain superfamily	Homologous Superfamily
B	IPR035979	RNA-binding domain superfamily	Homologous Superfamily
B	IPR050374	RRT5_SRSF_SR	Unknown
A	IPR017441	Protein kinase, ATP binding site	Binding Site
A	IPR000719	Protein kinase domain	Domain
A	IPR011009	Protein kinase-like domain superfamily	Homologous Superfamily
A	IPR008271	Serine/threonine-protein kinase, active site	Active Site

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	: Q96SB4	breast cancer invasive ductal breast carcinoma lung cancer pancreatic intraductal papillary-mucinous carcinoma cutaneous lupus erythematosus large cell medulloblastoma non-small cell lung carcinoma psoriasis ductal breast carcinoma in situ lung adenocarcinoma osteosarcoma subependymal giant cell astrocytoma