2HKP

SUMO protease Ulp1 with the catalytic cysteine oxidized to a sulfenic acid

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Protein Modification Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2hkpa2	Alpha and beta proteins (a+b)	Cysteine proteinases	Cysteine proteinases	Adenain-like	Ulp1 protease C-terminal domain	baker's yeast (Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
A	d2hkpa3	Artifacts	Tags	Tags	Tags	N-terminal Tags	baker's yeast (Saccharomyces cerevisiae ) [TaxId: 4932 ],	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	8034082	3001808	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	PF02902	e2hkpA1	A: a+b complex topology	X: Cysteine proteinases-like	H: Cysteine proteinases (From Topology)	T: Cysteine proteinases	F: PF02902	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.418.20	Mainly Alpha	Orthogonal Bundle	Actin-binding Protein, T-fimbrin	domain 1	CATH (4.3.0)
A	3.30.310.130	Alpha Beta	2-Layer Sandwich	TATA-Binding Protein	Ubiquitin-related	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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Ubiquitin-like-specific protease 1	cysteine-type peptidase activity peptidase activity catalytic activity, acting on a protein hydrolase activity catalytic activity protein-containing complex binding binding deSUMOylase activity ubiquitin-like protein peptidase activity	organonitrogen compound metabolic process peptidyl-lysine modification protein desumoylation primary metabolic process organic substance metabolic process protein modification by small protein removal macromolecule modification peptidyl-amino acid modification metabolic process protein metabolic process macromolecule metabolic process post-translational protein modification protein modification process protein modification by small protein conjugation or removal organonitrogen compound metabolic process peptidyl-lysine modification protein desumoylation primary metabolic process organic substance metabolic process protein modification by small protein removal macromolecule modification peptidyl-amino acid modification metabolic process protein metabolic process macromolecule metabolic process post-translational protein modification protein modification process protein modification by small protein conjugation or removal cell cycle G2/M phase transition mitotic cell cycle process G2/M transition of mitotic cell cycle cell cycle phase transition cellular process cell cycle mitotic cell cycle cell cycle process mitotic cell cycle phase transition proteolysis	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 organelle envelope nuclear envelope endomembrane system

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

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A	CSX	Parent Component: CYS RESID: AA0451 PSI-MOD : 2'-(S-L-cysteinyl)-6'-hydroxy-L-tryptophan sulfoxide MOD:01380

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.