Proprotein convertase 1

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Proprotein convertase 1
Proprotein convertase 1
according to PDB  1kn6

Existing structural data : 1kn6

Properties of human protein
Mass / length primary structure 643 amino acids
Cofactor Calcium 2+
Identifier
Gene names PCSK1 BMIQ12; NEC1; PC1; PC3; SPC3
External IDs
Enzyme classification
EC, category 3.4.21.93 serine protease
MEROPS S08.072
Response type Hydrolysis of a peptide bond
Substrate Proinsulin, Proopiomelanocortin, Prorenin, Proenkephalin, Prodynorphin, Prosomatostatin
Occurrence
Parent taxon Vertebrates
Orthologue
human House mouse
Entrez 5122 18548
Ensemble ENSG00000175426 ENSMUSG00000021587
UniProt P29120 P63239
Refseq (mRNA) NM_000439 NM_013628
Refseq (protein) NP_000430 NP_038656
Gene locus Chr 5: 96.39 - 96.43 Mb Chr 13: 75.09 - 75.13 Mb
PubMed search 5122 18548

Proprotein convertase 1 (PC1) is an enzyme that is responsible for splitting off unnecessary protein components of many proteohormones and neuropeptides (the so-called post - translational modification ). For example, PC1 (together with PC 2 ) is necessary to produce insulin from proinsulin . PC1 is a serine protease found in many vertebrates . Mutations in the human PCSK1 - gene can lead to deficiency PC1 very rare, which is accompanied by severe metabolic disorders.

Substrates for PC1 include proinsulin, proopiomelanocortin , prorenin , proenkephalin , prodynorphin , prosomatostatin and oxytocin - neurophysin .

Individual evidence

  1. MEROPS entry
  2. UniProt P29120
  3. Jackson RS, Creemers JW, Farooqi IS, et al : Small-intestinal dysfunction accompanies the complex endocrinopathy of human proprotein convertase 1 deficiency . In: J. Clin. Invest. . 112, No. 10, November 2003, pp. 1550-60. doi : 10.1172 / JCI18784 . PMID 14617756 . PMC 259128 (free full text).