8FPQ | pdb_00008fpq

PCSK9 in complex with an inhibitor

External Resource: Annotation


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
BSCOP2B SuperfamilySubtilisin-like 8069727 3000226 SCOP2B (2022-06-29)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
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
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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Proprotein convertase subtilisin/kexin type 9
Proprotein convertase subtilisin/kexin type 9
C [auth L]MCR-PHE-VAL-PRO-THR-THR-BIF-MAA-BIF-MAA-GLU-ALA-PRO-ALA-NEH inhibitor---

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
IPR050131Subtilisin-like serine proteaseFamily
IPR034193Proteinase K-like catalytic domainDomain
IPR041254Proprotein convertase subtilisin/kexin type 9, C-terminal domain 1Domain
IPR036852Peptidase S8/S53 domain superfamilyHomologous Superfamily
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
IPR050131Subtilisin-like serine proteaseFamily
IPR034193Proteinase K-like catalytic domainDomain
IPR041254Proprotein convertase subtilisin/kexin type 9, C-terminal domain 1Domain
IPR036852Peptidase S8/S53 domain superfamilyHomologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

ChainsDrug Target  Associated Disease
Pharos:  Q8NBP7
Pharos:  Q8NBP7

Protein Modification Annotation

Modified Residue(s)
ChainResidue(s)Description
C [auth L]BIF Parent Component: PHE

C [auth L]MAA Parent Component: ALA

RESID:  AA0061

PSI-MOD :  N-methyl-L-alanine MOD:00070
C [auth L]MCR RESID:  AA0061

C [auth L]NEH RESID:  AA0061