Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2 FamilyUSP domain-like 8031361 4003158 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyCysteine proteinases 8043739 3001808 SCOP2 (2022-06-29)
BSCOP2B SuperfamilyCysteine proteinases 8043739 3001808 SCOP2B (2022-06-29)
ESCOP2B SuperfamilyCysteine proteinases 8043739 3001808 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyUbiquitin-like 8043829 3000157 SCOP2B (2022-06-29)
DSCOP2B SuperfamilyUbiquitin-like 8043829 3000157 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AUCHe1nbfA1 A: a+b complex topologyX: Cysteine proteinases-likeH: Cysteine proteinases (From Topology)T: Cysteine proteinasesF: UCHECOD (1.6)
BUCHe1nbfB1 A: a+b complex topologyX: Cysteine proteinases-likeH: Cysteine proteinases (From Topology)T: Cysteine proteinasesF: UCHECOD (1.6)
EUCHe1nbfE1 A: a+b complex topologyX: Cysteine proteinases-likeH: Cysteine proteinases (From Topology)T: Cysteine proteinasesF: UCHECOD (1.6)
Cubiquitin_1e1nbfC1 A: a+b two layersX: beta-GraspH: Ubiquitin-relatedT: Ubiquitin-likeF: ubiquitin_1ECOD (1.6)
Dubiquitin_1e1nbfD1 A: a+b two layersX: beta-GraspH: Ubiquitin-relatedT: Ubiquitin-likeF: ubiquitin_1ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B, E
PF00443Ubiquitin carboxyl-terminal hydrolase (UCH)Ubiquitin carboxyl-terminal hydrolase- Family
C, D
PF00240Ubiquitin family (ubiquitin)Ubiquitin familyThis family contains a number of ubiquitin-like proteins: SUMO (smt3 homologue) (see Swiss:Q02724), Nedd8 (see Swiss:P29595), Elongin B (see Swiss:Q15370), Rub1 (see Swiss:Q9SHE7), and Parkin (see Swiss:O60260). A number of them are thought to carry ...This family contains a number of ubiquitin-like proteins: SUMO (smt3 homologue) (see Swiss:Q02724), Nedd8 (see Swiss:P29595), Elongin B (see Swiss:Q15370), Rub1 (see Swiss:Q9SHE7), and Parkin (see Swiss:O60260). A number of them are thought to carry a distinctive five-residue motif termed the proteasome-interacting motif (PIM), which may have a biologically significant role in protein delivery to proteasomes and recruitment of proteasomes to transcription sites [5].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B, E
Ubiquitin carboxyl-terminal hydrolase 7
C, D
Ubiquitin aldehyde

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

ChainsEnzyme NameDescriptionCatalytic Residues
ubiquitinyl hydrolase 1 (peptidase C19 type)  M-CSA #789

Deubiquinylation is a vital process in eukaryotic cells because it protects proteins from degradation. It involves the hydrolysis of the peptide bond that joins the C terminal residue of ubiquitin to the lysine residue in the protein, and is catalysed by DUPs (Deubiquinylating proteins) such as HAUSP, described here. This family of enzymes is one of the largest in the human genome, reflecting their importance in the cell. For example, the tumour suppressing protein p53 relies on HAUSP action in order to prevent it from being degraded; thus malfunctions in the expression or activity of HAUSP can lead to cancer. HAUSP, along with the rest of the homologous family, is a cysteine protease, and displays structural and sequence homology to other cysteine proteases with different roles in the cell.

Defined by 4 residues: ASN:A-11 [auth A-218]CYS:A-16 [auth A-223]HIS:A-257 [auth A-464]ASP:A-274 [auth A-481]
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