8PCH
CRYSTAL STRUCTURE OF PORCINE CATHEPSIN H DETERMINED AT 2.1 ANGSTROM RESOLUTION: LOCATION OF THE MINI-CHAIN C-TERMINAL CARBOXYL GROUP DEFINES CATHEPSIN H AMINOPEPTIDASE FUNCTION
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
| Chains | Domain Info | Class | Fold | Superfamily | Family | Domain | Species | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| A | d8pch.1 | Alpha and beta proteins (a+b) | Cysteine proteinases | Cysteine proteinases | Papain-like | Cathepsin H | (Sus scrofa ) [TaxId: 9823 ], | SCOPe (2.08) |
| B [auth P] | d8pch.1 | Alpha and beta proteins (a+b) | Cysteine proteinases | Cysteine proteinases | Papain-like | Cathepsin H | (Sus scrofa ) [TaxId: 9823 ], | 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 | 8066299 | 3001808 | SCOP2B (2022-06-29) |
Domain Annotation: CATH CATH Database Homepage
| Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
|---|---|---|---|---|---|---|
| A | 3.90.70.10 | Alpha Beta | Alpha-Beta Complex | Cathepsin B | Chain A | CATH (4.3.0) |
Protein Family Annotation Pfam Database Homepage
| Chains | Accession | Name | Description | Comments | Source |
|---|---|---|---|---|---|
| PF00112 | Papain family cysteine protease (Peptidase_C1) | Papain family cysteine protease | - | Domain | |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
InterPro: Protein Family Classification InterPro Database Homepage
Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage
| Chains | Enzyme Name | Description | Catalytic Residues |
|---|---|---|---|
| cathepsin H M-CSA #682 | Cathepsin H is a lysosomal cysteine protease, involved in intracellular protein degradation. It is the only known mono-aminopeptidase in the papain-like family and is reported to be involved in tumor metastasis. The enzyme is a relatively abundant protease involved in intracellular protein degradation. It has been proposed that the levels of Cathepsin increase during disease states. Cathepsin H is an aminopeptidase, cleaving a single N-terminal residue from a polypeptide chain. It has been shown that Cathepsin H also exhibits endopeptidase activity. The mature protein consists of three fragments; the N-terminal heavy and C-terminal light chains, and an octapeptide called the mini-chain. | Defined by 3 residues: GLN:A-20 [auth A-19]CYS:A-26 [auth A-25]HIS:A-166 [auth A-159] | EC: 3.4.22.16 (PDB Primary Data) |
