Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilySubtilisin-like8069727 3000226 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
APF18459e6u2fA5 A: beta duplicates or obligate multimersX: Resistin (From Topology)H: Resistin (From Topology)T: ResistinF: PF18459ECOD (1.6)
APF18463e6u2fA3 A: beta duplicates or obligate multimersX: Resistin (From Topology)H: Resistin (From Topology)T: ResistinF: PF18463ECOD (1.6)
APF18464e6u2fA4 A: beta duplicates or obligate multimersX: Resistin (From Topology)H: Resistin (From Topology)T: ResistinF: PF18464ECOD (1.6)
APF05922e6u2fA2 A: a+b two layersX: Alpha-beta plaitsH: Protease propeptides/inhibitors (From Topology)T: Protease propeptides/inhibitorsF: PF05922ECOD (1.6)
APF00082e6u2fA1 A: a/b three-layered sandwichesX: Subtilisin-likeH: Subtilisin-like (From Topology)T: Subtilisin-likeF: PF00082ECOD (1.6)
C [auth H]PF07654e6u2fH1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: PF07654ECOD (1.6)
C [auth H]PF07686e6u2fH2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: PF07686ECOD (1.6)
D [auth L]PF07654e6u2fL1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: PF07654ECOD (1.6)
D [auth L]PF07686e6u2fL2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: PF07686ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A3.30.70.80 Alpha Beta 2-Layer Sandwich Alpha-Beta Plaits Peptidase S8 propeptide/proteinase inhibitor I9CATH (utative)
A3.40.50.200 Alpha Beta 3-Layer(aba) Sandwich Rossmann fold Peptidase S8/S53 domainCATH (utative)
A2.60.120.690 Mainly Beta Sandwich Jelly Rolls Proprotein convertase subtilisin/kexin type 9CATH (utative)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
C [auth H]Heavy ChainIGHV1 -proprotein convertase subtilisin/kexin type 9SAbDab (2024-04-26)
D [auth L]Light ChainIGKV6 Kappaproprotein convertase subtilisin/kexin type 9SAbDab (2024-04-26)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF00082Subtilase family (Peptidase_S8)Subtilase familySubtilases are a family of serine proteases. They appear to have independently and convergently evolved an Asp/Ser/His catalytic triad, like that found in the trypsin serine proteases (see Pfam:PF00089). Structure is an alpha/beta fold containing a 7 ...Subtilases are a family of serine proteases. They appear to have independently and convergently evolved an Asp/Ser/His catalytic triad, like that found in the trypsin serine proteases (see Pfam:PF00089). Structure is an alpha/beta fold containing a 7-stranded parallel beta sheet, order 2314567.
Domain
PF18463Proprotein convertase subtilisin-like/kexin type 9 C-terminal domain (PCSK9_C3)Proprotein convertase subtilisin-like/kexin type 9 C-terminal domainThis entry represents a subdomain found in the C-terminal cysteine/histidine-rich domain (CRD) of PCSK9 (also known as neural apoptosis-regulated convertase, NARC-1) [1]. PCSK9 has been shown to regulate circulating LDL-R levels by controlling LDL-R ...This entry represents a subdomain found in the C-terminal cysteine/histidine-rich domain (CRD) of PCSK9 (also known as neural apoptosis-regulated convertase, NARC-1) [1]. PCSK9 has been shown to regulate circulating LDL-R levels by controlling LDL-R degradation. Furthermore, numerous mutations in the PCSK9 gene have been identified and associated with hypercholesterolemia (gain of function) or hypocholesterolemia (loss of function) [2]. The fully folded CRD, shows structural similarity to the resistin homotrimer, a small cytokine associated with obesity and diabetes. The C-terminal domain from PCSK9 consists of three, three-stranded beta-subdomains arranged in a pseudothreefold, and each of the subdomains in the CRD of PCSK9 consists of three structurally conserved disulfide bonds [1].
Domain
PF18464Proprotein convertase subtilisin-like/kexin type 9 C-terminal domain (PCSK9_C2)Proprotein convertase subtilisin-like/kexin type 9 C-terminal domainThis entry represents a subdomain found in the C-terminal cysteine/histidine-rich domain (CRD) of PCSK9 (also known as neural apoptosis-regulated convertase, NARC-1) [1]. PCSK9 has been shown to regulate circulating LDL-R levels by controlling LDL-R ...This entry represents a subdomain found in the C-terminal cysteine/histidine-rich domain (CRD) of PCSK9 (also known as neural apoptosis-regulated convertase, NARC-1) [1]. PCSK9 has been shown to regulate circulating LDL-R levels by controlling LDL-R degradation. Furthermore, numerous mutations in the PCSK9 gene have been identified and associated with hypercholesterolemia (gain of function) or hypocholesterolemia (loss of function) [2]. The fully folded CRD, shows structural similarity to the resistin homotrimer, a small cytokine associated with obesity and diabetes. The C-terminal domain from PCSK9 consists of three, three-stranded beta-subdomains arranged in a pseudothreefold, and each of the subdomains in the CRD of PCSK9 consists of three structurally conserved disulfide bonds [1].
Domain
PF05922Peptidase inhibitor I9 (Inhibitor_I9)Peptidase inhibitor I9This family includes the proteinase B inhibitor from Saccharomyces cerevisiae and the activation peptides from peptidases of the subtilisin family. The subtilisin propeptides are known to function as molecular chaperones, assisting in the folding of ...This family includes the proteinase B inhibitor from Saccharomyces cerevisiae and the activation peptides from peptidases of the subtilisin family. The subtilisin propeptides are known to function as molecular chaperones, assisting in the folding of the mature peptidase [1], but have also been shown to act as 'temporary inhibitors' [2].
Domain
C [auth H]PF07686Immunoglobulin V-set domain (V-set)Immunoglobulin V-set domainThis domain is found in antibodies as well as neural protein P0 and CTL4 amongst others.Domain
C [auth H]PF07654Immunoglobulin C1-set domain (C1-set)Immunoglobulin C1-set domain- Domain
D [auth L]PF07686Immunoglobulin V-set domain (V-set)Immunoglobulin V-set domainThis domain is found in antibodies as well as neural protein P0 and CTL4 amongst others.Domain
D [auth L]PF07654Immunoglobulin C1-set domain (C1-set)Immunoglobulin C1-set domain- Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Proprotein convertase subtilisin/kexin type 9
Organo-peptide PCSK9 inhibitor---
C [auth H]7G7 heavy chain- - -
D [auth L]7G7 light chain- - -

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
IPR041052Proprotein convertase subtilisin/kexin type 9, C-terminal domain 2Domain
IPR037045Peptidase S8 propeptide/proteinase inhibitor I9 superfamilyHomologous Superfamily
IPR010259Peptidase S8 propeptide/proteinase inhibitor I9Domain
IPR000209Peptidase S8/S53 domainDomain
IPR015500Peptidase S8, subtilisin-relatedFamily
IPR041051Proprotein convertase subtilisin/kexin type 9, C-terminal domain 3Domain
IPR034193Proteinase K-like catalytic domainDomain
IPR041254Proprotein convertase subtilisin/kexin type 9, C-terminal domain 1Domain
IPR036852Peptidase S8/S53 domain superfamilyHomologous Superfamily
C [auth H]IPR003597Immunoglobulin C1-setDomain
C [auth H]IPR013783Immunoglobulin-like foldHomologous Superfamily
C [auth H]IPR036179Immunoglobulin-like domain superfamilyHomologous Superfamily
C [auth H]IPR003599Immunoglobulin subtypeDomain
C [auth H]IPR013106Immunoglobulin V-set domainDomain
C [auth H]IPR007110Immunoglobulin-like domainDomain
C [auth H]IPR003006Immunoglobulin/major histocompatibility complex, conserved siteConserved Site
D [auth L]IPR003597Immunoglobulin C1-setDomain
D [auth L]IPR013783Immunoglobulin-like foldHomologous Superfamily
D [auth L]IPR036179Immunoglobulin-like domain superfamilyHomologous Superfamily
D [auth L]IPR003599Immunoglobulin subtypeDomain
D [auth L]IPR013106Immunoglobulin V-set domainDomain
D [auth L]IPR007110Immunoglobulin-like domainDomain
D [auth L]IPR003006Immunoglobulin/major histocompatibility complex, conserved siteConserved Site