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Rabbit Anti-Corin/FITC Conjugated antibody
background:
Corin was first described as a trypsin-like serine proteinase in the heart which processed pro-atrial natriuretic peptide into the active form ANP. Corin cleaves pro-ANP at Arg98/Ser-99, and blocking Corin message inhibits pro-ANP processing. Null mutant mice lacking Corin develop hypertension, and a series of missense mutations have been identified in humans with high blood pressure and hypertension. Corin is a member of the type-II transmembrane serine proteinases, such as Hepsin, Epitheliasin, Matriptase and enteropeptidase. The Corin domain structure includes a cytoplasmic domain, a transmembrane domain, a spacer region, a frizzled-like domain, 5 LDL Receptor-like domains, another frizzled-like domain, 3 more LDLR-like repeats, a SRCR (Scavenger Receptor-Cysteine Rich) domain (also called macrophage scavenger-like domain), and finally the trypsin-like serine proteinase domain. The complex domain structure puts Corin into the “mosaic” TMPRSS family, so named because of the wide variety of domains.
Function:
Serine-type endopeptidase involved in atrial natriuretic peptide hormone (NPPA) processing. Converts through proteolytic cleavage the non-functional propeptide NPPA into the active hormone, thereby regulating blood pressure in heart and promoting natriuresis, diuresis and vasodilation. Proteolytic cleavage of pro-NPPA also plays a role in female pregnancy by promoting trophoblast invasion and spiral artery remodeling in uterus. Also acts as a regulator of sodium reabsorption in kidney. May also process pro-NPPB the B-type natriuretic peptide.
Isoform 2: has weaker endopeptidase activity compared to isoform 1.
Subcellular Location:
Cell membrane; Single-pass type II membrane protein. Isoform 2: Cell membrane; Single-pass type II membrane protein. Note=Less efficiently targeted to the cell membrane compared to isoform 1. Atrial natriuretic peptide-converting enzyme, 36 kDa soluble fragment: Secreted. Note=Soluble form produced following cleavage by ADAM10. Atrial natriuretic peptide-converting enzyme, 160 kDa soluble fragment: Secreted. Note=Soluble form produced following autocatalytic cleavage. Atrial natriuretic peptide-converting enzyme, 100 kDa soluble fragment: Secreted. Note=Soluble form produced following autocatalytic cleavage.
Tissue Specificity:
Highly expressed in heart. Expressed in heart myocytes. Also expressed in pregnant uterus.
Post-translational modifications:
N-glycosylated; required for processing and activation.
Similarity:
Belongs to the peptidase S1 family.
Contains 2 FZ (frizzled) domains.
Contains 7 LDL-receptor class A domains.
Contains 1 peptidase S1 domain.
Contains 1 SRCR domain.
Database links:
Entrez Gene: 10699 Human
Entrez Gene: 53419 Mouse
Entrez Gene: 289596 Rat
Omim: 605236 Human
SwissProt: Q9Y5Q5 Human
SwissProt: Q566K6 Mouse
SwissProt: Q9Z319 Mouse
SwissProt: Q80YN4 Rat
Unigene: 518618 Human
Unigene: 332425 Mouse
Unigene: 211679 Rat
Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
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