Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilySubtilisin-like 8069727 3000226 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
APCSK9_C-CRD_2nde3sqoA1 A: beta duplicates or obligate multimersX: Resistin (From Topology)H: Resistin (From Topology)T: ResistinF: PCSK9_C-CRD_2ndECOD (1.6)
APCSK9_C-CRD_1ste3sqoA3 A: beta duplicates or obligate multimersX: Resistin (From Topology)H: Resistin (From Topology)T: ResistinF: PCSK9_C-CRD_1stECOD (1.6)
APCSK9_C-CRD_3rde3sqoA2 A: beta duplicates or obligate multimersX: Resistin (From Topology)H: Resistin (From Topology)T: ResistinF: PCSK9_C-CRD_3rdECOD (1.6)
APeptidase_S8e3sqoA4 A: a/b three-layered sandwichesX: Subtilisin-likeH: Subtilisin-like (From Topology)T: Subtilisin-likeF: Peptidase_S8ECOD (1.6)
B [auth H]V-set_8e3sqoH1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-set_8ECOD (1.6)
B [auth H]C1-set_1e3sqoH2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-set_1ECOD (1.6)
C [auth L]C1-set_4e3sqoL2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-set_4ECOD (1.6)
C [auth L]V-sete3sqoL1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-setECOD (1.6)
D [auth P]Inhibitor_I9e3sqoP2 A: a+b two layersX: Alpha-beta plaitsH: Protease propeptides/inhibitors (From Topology)T: Protease propeptides/inhibitorsF: Inhibitor_I9ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

IMGT Antibody Annotation IMGT Database Homepage

ChainProtein NameDescriptionOrganism NameGene Allele Name(s)Domain Name(s)Receptor TypeReceptor DescriptionProvenance Source
B [auth H]J16 Fab VH-CH1 Homo sapiens (human) IGHV1-46*01, IGHV1-46*03, IGHJ6*01, IGHJ6*02, IGHG2*01, IGHG2*06, IGHG2*05, IGHG2*03 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-2_KAPPA IMGT (202446-0)
C [auth L]J16 Fab L-KAPPA Homo sapiens (human) IGKV1D-13*01, IGKV1-13*02, IGKV1D-13*02, IGKJ2*01, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-2_KAPPA IMGT (202446-0)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
B [auth H]Heavy ChainIGHV1 -proprotein convertase subtilisin/kexin type 9SAbDab (2024-11-15)
C [auth L]Light ChainIGKV1D Kappaproprotein convertase subtilisin/kexin type 9SAbDab (2024-11-15)

Thera-SAbDab Antibody Annotation Thera-SAbDab Database Homepage

ChainNameTargetProvenance Source
B [auth H] Bococizumab PCSK9Therapeutic SAbDab (2024-11-15)
C [auth L] Bococizumab PCSK9Therapeutic SAbDab (2024-11-15)

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
PF18459Proprotein convertase subtilisin-like/kexin type 9 C-terminal domain (PCSK9_C1)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
D [auth P]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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Proprotein convertase subtilisin/kexin type 9
B [auth H]J16 Heavy chain---
C [auth L]J16 Light chain---
D [auth P]PCSK9 prodomain

InterPro: Protein Family Classification InterPro Database Homepage

Pharos: Disease Associations Pharos Homepage Annotation

ChainsDrug Target  Associated Disease
PharosQ8NBP7
D [auth P]PharosQ8NBP7