1K3B

Crystal Structure of Human Dipeptidyl Peptidase I (Cathepsin C): Exclusion Domain Added to an Endopeptidase Framework Creates the Machine for Activation of Granular Serine Proteases


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyDipeptidyl peptidase I (cathepsin C) exclusion domain8039797 3000840 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ACathepsinC_exce1k3bA1 A: beta barrelsX: Lipocalins/StreptavidinH: Dipeptidyl peptidase I (cathepsin C), exclusion domain (From Topology)T: Dipeptidyl peptidase I (cathepsin C), exclusion domainF: CathepsinC_excECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A2.40.128.80 Mainly Beta Beta Barrel Lipocalin Cathepsin C, exclusion domainCATH (4.3.0)
B3.90.70.10 Alpha Beta Alpha-Beta Complex Cathepsin B Chain ACATH (4.3.0)
C2.40.50.170 Mainly Beta Beta Barrel OB fold (Dihydrolipoamide Acetyltransferase, E2P) Cysteine proteinases. Chain CCATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF08773Cathepsin C exclusion domain (CathepsinC_exc)Cathepsin C exclusion domainCathepsin C (dipeptidyl peptidase I) is the physiological activator of a group of serine proteases. This domain corresponds to the exclusion domain whose structure excludes the approach of a polypeptide apart from its termini. It forms an enclosed ...Cathepsin C (dipeptidyl peptidase I) is the physiological activator of a group of serine proteases. This domain corresponds to the exclusion domain whose structure excludes the approach of a polypeptide apart from its termini. It forms an enclosed beta barrel structure composed from 8 anti-parallel beta strands [1]. Based on a structural comparison and interaction data, it is suggested that the exclusion domain originates from a metallo-protease inhibitor [1].
Domain
PF00112Papain family cysteine protease (Peptidase_C1)Papain family cysteine protease- Domain
PF00112Papain family cysteine protease (Peptidase_C1)Papain family cysteine protease- Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
dipeptydil-peptidase I exclusion domain
dipeptydil-peptidase I light chain
dipeptydil-peptidase I heavy chain

InterPro: Protein Family Classification InterPro Database Homepage

Pharos: Disease Associations Pharos Homepage Annotation

ChainsDrug Target  Associated Disease
PharosP53634
PharosP53634
PharosP53634