Annotations: 2CKH

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2ckha1	Alpha and beta proteins (a+b)	Cysteine proteinases	Cysteine proteinases	Adenain-like	Sentrin-specific protease 1	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d2ckhb1	Alpha and beta proteins (a+b)	beta-Grasp (ubiquitin-like)	Ubiquitin-like	Ubiquitin-related	SUMO-2	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Cysteine proteinases	8033184	3001808	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Ubiquitin-like	8043638	3000157	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	Peptidase_C48	e2ckhA1	A: a+b complex topology	X: Cysteine proteinases-like	H: Cysteine proteinases (From Topology)	T: Cysteine proteinases	F: Peptidase_C48	ECOD (1.6)
B	Rad60-SLD	e2ckhB1	A: a+b two layers	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: Rad60-SLD	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.395.10	Alpha Beta	3-Layer(aba) Sandwich	Adenoviral Proteinase	Chain	CATH (4.3.0)
B	3.10.20.90	Alpha Beta	Roll	Ubiquitin-like (UB roll)	Phosphatidylinositol 3-kinase Catalytic Subunit	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF02902	Ulp1 protease family, C-terminal catalytic domain (Peptidase_C48)	Ulp1 protease family, C-terminal catalytic domain	This domain contains the catalytic triad Cys-His-Asn.	Domain
B	PF11976	Ubiquitin-2 like Rad60 SUMO-like (Rad60-SLD)	Ubiquitin-2 like Rad60 SUMO-like	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	SENTRIN-SPECIFIC PROTEASE 1	peptidase activity catalytic activity, acting on a protein hydrolase activity catalytic activity endopeptidase activity cysteine-type peptidase activity ubiquitin-like protein peptidase activity SUMO-specific endopeptidase activity cysteine-type endopeptidase activity ubiquitin-like protein-specific endopeptidase activity deSUMOylase activity	regulation of cellular process negative regulation of biological process negative regulation of cellular metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process post-transcriptional regulation of gene expression regulation of RNA metabolic process organic substance biosynthetic process regulation of nucleobase-containing compound metabolic process regulation of biological quality RNA catabolic process mRNA catabolic process regulation of biological process cellular metabolic process regulation of cellular process negative regulation of biological process negative regulation of cellular metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process post-transcriptional regulation of gene expression regulation of RNA metabolic process organic substance biosynthetic process regulation of nucleobase-containing compound metabolic process regulation of biological quality RNA catabolic process mRNA catabolic process regulation of biological process cellular metabolic process negative regulation of metabolic process primary metabolic process regulation of cellular metabolic process negative regulation of cellular biosynthetic process nucleobase-containing compound catabolic process organic cyclic compound metabolic process regulation of gene expression negative regulation of gene expression biosynthetic process negative regulation of macromolecule biosynthetic process nucleic acid catabolic process metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of metabolic process catabolic process cellular biosynthetic process RNA metabolic process macromolecule catabolic process regulation of mRNA catabolic process organic substance metabolic process negative regulation of cellular process negative regulation of macromolecule metabolic process regulation of biosynthetic process biological regulation regulation of macromolecule metabolic process regulation of catabolic process gene expression mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process organic cyclic compound catabolic process regulation of mRNA stability regulation of cellular biosynthetic process negative regulation of biosynthetic process regulation of RNA stability cellular process regulation of mRNA metabolic process organic substance catabolic process regulation of catalytic activity positive regulation of protein metabolic process positive regulation of peptidase activity positive regulation of biological process positive regulation of cysteine-type endopeptidase activity involved in apoptotic process positive regulation of molecular function positive regulation of metabolic process regulation of cysteine-type endopeptidase activity involved in apoptotic process regulation of proteolysis proteolysis regulation of endopeptidase activity positive regulation of macromolecule metabolic process protein metabolic process activation of cysteine-type endopeptidase activity involved in apoptotic process regulation of cysteine-type endopeptidase activity organonitrogen compound metabolic process regulation of protein metabolic process regulation of peptidase activity positive regulation of catalytic activity regulation of molecular function positive regulation of hydrolase activity positive regulation of cysteine-type endopeptidase activity regulation of hydrolase activity positive regulation of endopeptidase activity positive regulation of proteolysis cellular response to stimulus response to stimulus signaling cell death cell communication apoptotic signaling pathway signal transduction apoptotic process programmed cell death peptidyl-lysine modification protein sumoylation macromolecule modification peptidyl-amino acid modification protein modification process post-translational protein modification protein modification by small protein conjugation protein modification by small protein conjugation or removal protein desumoylation protein modification by small protein removal positive regulation of macromolecule biosynthetic process DNA-templated transcription transcription by RNA polymerase II 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 organic cyclic compound biosynthetic process regulation of DNA-templated transcription positive regulation of DNA-templated transcription 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 nucleobase-containing compound biosynthetic process positive regulation of RNA biosynthetic process positive regulation of cellular biosynthetic process	anchoring junction cell junction cellular anatomical entity focal adhesion cell-substrate junction membrane-bounded organelle intracellular anatomical structure nuclear membrane membrane nucleus intracellular membrane-bounded organelle endomembrane system intracellular organelle organelle envelope anchoring junction cell junction cellular anatomical entity focal adhesion cell-substrate junction membrane-bounded organelle intracellular anatomical structure nuclear membrane membrane nucleus intracellular membrane-bounded organelle endomembrane system intracellular organelle organelle envelope organelle nuclear envelope organelle membrane cytoplasm membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen
B	SMALL UBIQUITIN-RELATED MODIFIER 2	aminoacyltransferase activity ubiquitin-like protein transferase activity catalytic activity, acting on a protein acyltransferase activity SUMO transferase activity transferase activity catalytic activity protein binding binding ubiquitin-like protein ligase binding enzyme binding protein tag activity molecular tag activity ubiquitin protein ligase binding aminoacyltransferase activity ubiquitin-like protein transferase activity catalytic activity, acting on a protein acyltransferase activity SUMO transferase activity transferase activity catalytic activity protein binding binding ubiquitin-like protein ligase binding enzyme binding protein tag activity molecular tag activity ubiquitin protein ligase binding RNA binding organic cyclic compound binding nucleic acid binding	organonitrogen compound metabolic process peptidyl-lysine modification primary metabolic process organic substance metabolic process protein sumoylation macromolecule modification peptidyl-amino acid modification metabolic process protein metabolic process macromolecule metabolic process protein modification process post-translational protein modification protein modification by small protein conjugation protein modification by small protein conjugation or removal organonitrogen compound metabolic process peptidyl-lysine modification primary metabolic process organic substance metabolic process protein sumoylation macromolecule modification peptidyl-amino acid modification metabolic process protein metabolic process macromolecule metabolic process protein modification process post-translational protein modification protein modification by small protein conjugation protein modification by small protein conjugation or removal positive regulation of proteasomal protein catabolic process catabolic process positive regulation of protein metabolic process proteolysis involved in protein catabolic process positive regulation of biological process proteasome-mediated ubiquitin-dependent protein catabolic process macromolecule catabolic process regulation of ubiquitin-dependent protein catabolic process regulation of primary metabolic process positive regulation of metabolic process positive regulation of ubiquitin-dependent protein catabolic process regulation of proteolysis regulation of proteolysis involved in protein catabolic process modification-dependent macromolecule catabolic process proteolysis positive regulation of macromolecule metabolic process organonitrogen compound catabolic process regulation of biological process regulation of protein metabolic process biological regulation proteasomal protein catabolic process regulation of macromolecule metabolic process protein catabolic process regulation of catabolic process positive regulation of protein catabolic process positive regulation of proteolysis involved in protein catabolic process positive regulation of catabolic process regulation of proteasomal ubiquitin-dependent protein catabolic process modification-dependent protein catabolic process positive regulation of proteolysis regulation of proteasomal protein catabolic process positive regulation of proteasomal ubiquitin-dependent protein catabolic process ubiquitin-dependent protein catabolic process regulation of metabolic process organic substance catabolic process regulation of protein catabolic process regulation of cellular process positive regulation of macromolecule biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription regulation of RNA metabolic process transcription by RNA polymerase II organic substance biosynthetic process regulation of nucleobase-containing compound metabolic process regulation of transcription by RNA polymerase II positive regulation of nucleobase-containing compound metabolic process cellular metabolic process regulation of cellular metabolic process positive regulation of transcription by RNA polymerase II positive regulation of RNA metabolic process organic cyclic compound metabolic process regulation of gene expression biosynthetic process organic cyclic compound biosynthetic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription positive regulation of DNA-templated transcription cellular biosynthetic process RNA metabolic 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 nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of cellular biosynthetic process positive regulation of RNA biosynthetic process cellular process positive regulation of cellular biosynthetic process	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 nuclear body PML body

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR038765	Papain-like cysteine peptidase superfamily	Homologous Superfamily
A	IPR003653	Ulp1 protease family, C-terminal catalytic domain	Domain
B	IPR000626	Ubiquitin-like domain	Domain
B	IPR029071	Ubiquitin-like domain superfamily	Homologous Superfamily
B	IPR022617	Rad60/SUMO-like domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q9P0U3	atypical teratoid rhabdoid tumor malignant glioma primitive neuroectodermal tumor glioblastoma medulloblastoma prostate carcinoma large cell medulloblastoma osteosarcoma
B	Pharos: P61956	malignant ependymoma psoriasis non-alcoholic fatty liver disease systemic sclerosis osteosarcoma

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.