Annotations: 6Z9U

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	tRNA-intron endonuclease catalytic domain-like	8034132	3000437	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	tRNA-intron endonuclease catalytic domain-like	8034132	3000437	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF01974	e6z9uA1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: tRNA-intron endonuclease catalytic domain-like (From Topology)	T: tRNA-intron endonuclease catalytic domain-like	F: PF01974	ECOD (1.6)
C	PF01974	e6z9uC1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: tRNA-intron endonuclease catalytic domain-like (From Topology)	T: tRNA-intron endonuclease catalytic domain-like	F: PF01974	ECOD (1.6)
B	PF09631	e6z9uB1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: tRNA-intron endonuclease catalytic domain-like (From Topology)	T: tRNA-intron endonuclease catalytic domain-like	F: PF09631	ECOD (1.6)
D	PF09631	e6z9uD1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: tRNA-intron endonuclease catalytic domain-like (From Topology)	T: tRNA-intron endonuclease catalytic domain-like	F: PF09631	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, C	PF01974	tRNA intron endonuclease, catalytic C-terminal domain (tRNA_int_endo)	tRNA intron endonuclease, catalytic C-terminal domain	Members of this family cleave pre tRNA at the 5' and 3' splice sites to release the intron EC:3.1.27.9.	Domain
B, D	PF09631	Sen15 protein (Sen15)	Sen15 protein	The Sen15 subunit of the tRNA intron-splicing endonuclease is one of the two structural subunits of this hetero-tetrameric enzyme. Residues 36-157 of this subunit possess a novel homodimeric fold. Each monomer consists of three alpha-helices and a m ...	The Sen15 subunit of the tRNA intron-splicing endonuclease is one of the two structural subunits of this hetero-tetrameric enzyme. Residues 36-157 of this subunit possess a novel homodimeric fold. Each monomer consists of three alpha-helices and a mixed antiparallel/parallel beta-sheet. Two monomers of Sen15 fold with two monomers of Sen34, one of the two catalytic subunits, to form an alpha2-beta2 tetramer as part of the functional endonuclease assembly.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, C	tRNA-splicing endonuclease subunit Sen34	binding organic cyclic compound binding nucleic acid binding endonuclease activity, active with either ribo- or deoxyribonucleic acids and producing 3'-phosphomonoesters tRNA-specific ribonuclease activity endonuclease activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA nuclease activity hydrolase activity catalytic activity, acting on a tRNA RNA endonuclease activity, producing 3'-phosphomonoesters tRNA-intron endonuclease activity nuclease activity binding organic cyclic compound binding nucleic acid binding endonuclease activity, active with either ribo- or deoxyribonucleic acids and producing 3'-phosphomonoesters tRNA-specific ribonuclease activity endonuclease activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA nuclease activity hydrolase activity catalytic activity, acting on a tRNA RNA endonuclease activity, producing 3'-phosphomonoesters tRNA-intron endonuclease activity nuclease activity hydrolase activity, acting on ester bonds RNA endonuclease activity catalytic activity lyase activity	cellular biosynthetic process RNA metabolic process nucleobase-containing compound metabolic process tRNA splicing, via endonucleolytic cleavage and ligation organic substance metabolic process tRNA processing organic substance biosynthetic process RNA processing RNA splicing cellular metabolic process primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process cellular biosynthetic process RNA metabolic process nucleobase-containing compound metabolic process tRNA splicing, via endonucleolytic cleavage and ligation organic substance metabolic process tRNA processing organic substance biosynthetic process RNA processing RNA splicing cellular metabolic process primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process tRNA metabolic process organic cyclic compound metabolic process tRNA-type intron splice site recognition and cleavage biosynthetic process RNA splicing, via endonucleolytic cleavage and ligation ncRNA metabolic process nucleic acid catabolic process metabolic process cellular process macromolecule metabolic process mRNA processing mRNA metabolic process	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 catalytic complex nuclear protein-containing complex endonuclease complex endoribonuclease complex intracellular protein-containing complex tRNA-intron endonuclease complex nucleoplasm
B, D	tRNA-splicing endonuclease subunit Sen15	binding organic cyclic compound binding nucleic acid binding	cellular biosynthetic process RNA metabolic process nucleobase-containing compound metabolic process tRNA splicing, via endonucleolytic cleavage and ligation organic substance metabolic process tRNA processing organic substance biosynthetic process RNA processing RNA splicing cellular metabolic process primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process cellular biosynthetic process RNA metabolic process nucleobase-containing compound metabolic process tRNA splicing, via endonucleolytic cleavage and ligation organic substance metabolic process tRNA processing organic substance biosynthetic process RNA processing RNA splicing cellular metabolic process primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process tRNA metabolic process organic cyclic compound metabolic process biosynthetic process RNA splicing, via endonucleolytic cleavage and ligation ncRNA metabolic process nucleic acid catabolic process metabolic process cellular process macromolecule metabolic process mRNA processing mRNA metabolic process	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 nucleoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, C	IPR006677	tRNA intron endonuclease, catalytic domain-like	Domain
A, C	IPR016690	tRNA-splicing endonuclease, SEN34 subunit	Family
A, C	IPR011856	tRNA endonuclease-like domain superfamily	Homologous Superfamily
A, C	IPR036167	tRNA intron endonuclease, catalytic domain-like superfamily	Homologous Superfamily
A, C	IPR006676	tRNA-splicing endonuclease	Family
B, D	IPR011856	tRNA endonuclease-like domain superfamily	Homologous Superfamily
B, D	IPR036167	tRNA intron endonuclease, catalytic domain-like superfamily	Homologous Superfamily
B, D	IPR018593	tRNA-splicing endonuclease subunit Sen15	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, C	Pharos: Q9BSV6	pontocerebellar hypoplasia type 2C microcephaly intellectual disability pontocerebellar hypoplasia vision disorder Deglutition Disorders neurodegenerative disease alcoholic liver cirrhosis movement disorder pontocerebellar hypoplasia type 2 prostate carcinoma Takayasu arteritis arthrogryposis atypical teratoid rhabdoid tumor glioblastoma pontocerebellar hypoplasia type 2C microcephaly intellectual disability pontocerebellar hypoplasia vision disorder Deglutition Disorders neurodegenerative disease alcoholic liver cirrhosis movement disorder pontocerebellar hypoplasia type 2 prostate carcinoma Takayasu arteritis arthrogryposis atypical teratoid rhabdoid tumor glioblastoma microlissencephaly ovarian cancer psoriasis astrocytic tumor malignant glioma
B, D	Pharos: Q8WW01	pontocerebellar hypoplasia, type 2F adrenoleukodystrophy Cerebellar Hypoplasia osteoarthritis pancreatic intraductal papillary-mucinous neoplasm pontocerebellar hypoplasia type 2 progressive supranuclear palsy atypical teratoid rhabdoid tumor glioblastoma osteosarcoma Pick disease breast cancer large cell medulloblastoma ovarian cancer pontocerebellar hypoplasia pontocerebellar hypoplasia, type 2F adrenoleukodystrophy Cerebellar Hypoplasia osteoarthritis pancreatic intraductal papillary-mucinous neoplasm pontocerebellar hypoplasia type 2 progressive supranuclear palsy atypical teratoid rhabdoid tumor glioblastoma osteosarcoma Pick disease breast cancer large cell medulloblastoma ovarian cancer pontocerebellar hypoplasia primitive neuroectodermal tumor

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.