cleavage of the C-terminal propeptide at Ala-/-Asp in type I and II procollagens and at Arg-/-Asp in type III
Synonyms
bmp-1, tolloid, procollagen c-proteinase, pcp-2, pcp-1, bone morphogenetic protein 1, bone morphogenetic protein-1, mammalian tolloid, procollagen c-endopeptidase, procollagen peptidase, more
cleavage occurs at the physiological site, i.e. at the specific Ala-Asp bond in the pro-alpha1(I) and pro-alpha2(I) chains, and at the specific Gly-Asp bond in the pro-alpha1(III)
PCPE2, a 52-kDa glycoprotein located in the extracellular matrix, enhances the cleavage of C-terminal procollagen by bone morphogenetic protein 1 (BMP1). PCPE2 is not essential for in vivo pro-apoA-I processing. PCPE2 confers atheroprotection to apoA-I by enhancing BMP1-mediated catalytic cleavage, converting pro-apoA-I to mature apoA-I, and stimulating ABCA1-mediated cholesterol flux, but pro-apoA-I processing is not altered in the case of PCPE2 deficiency
secreted Frizzled-related protein sFRP2 serves as a direct enhancer of procollagen C proteinase activity of tolloid-like metalloproteinases. The level of fibrosis, in which procollagen processing by tolloid-like proteinases has a rate-limiting role, is markedly reduced in Sfrp2-null mice subjected to myocardial infarction. This reduced level of fibrosis is accompanied by significantly improved cardiac function
both PCPE1 and PCPE2 are located in the extracellular matrix, where they facilitate bone morphogenetic protein 1 (BMP1) cleavage of C-terminal procollagen propeptides. PCPE2 and PCPE1 have different tissue distributions and heparin-binding affinities, suggesting a functional divergence. PCPE2 is heavily expressed in heart tissue in contrast to PCPE1. Both PCPE1 and PCPE2 have two CUB (Complement C1r/C1s, Uegf, Bmp1) domains separated by a short linker region, with each domain consisting of about 110 residues containing a beta-sandwich fold that mediates a variety of protein-protein interactions. Phenotype of PCPE2-/- mice, overview
the enzyme encoded by bmp1 belongs to the BTP cluster of the astacin enzyme family. Structure-activity relationship of astacin metalloproteases, EDTA is used to dock into the active site cleft of the astacins to know the interaction network and to identify the important residues for binding, comparative three-dimensional structure homology modeling and docking study, and potential binding site, detailed overview
BMP1, in addition to catalyzing procollagen processing, removes the apoA-I six-amino acid propeptide. BMP1-PCPE2 processing of the apoA-I propeptide might stimulate nHDL assembly. PCPE2 enhances the BMP1-mediated cleavage of propeptides from procollagen. PCPE2 confers atheroprotection to apoA-I by enhancing BMP1-mediated catalytic cleavage, converting pro-apoA-I to mature apoA-I, and stimulating ABCA1-mediated cholesterol flux, but pro-apoA-I processing is not altered in the case of PCPE2 deficiency
the N-propeptides are removed first, most probably in the Golgi or in the ERGIC (ER-Golgi intermediate compartment). In contrast, the C-propeptides are cleaved in a post-Golgi compartment
the hydrogen bonding residue of the enzyme is Glu219, comparative three-dimensional structure homology modeling (template crystal structure PDB ID 3EDH) and docking study, and potential binding site, detailed overview
homozygous null mice lacking PCBs encoded by BMP-1 are perinatally lethal and have reduced ossification of skull bones and defects in formation of the ventral body wall, procollagen processing and collagen fibrillogenesis
secreted Frizzled-related protein sFRP2 serves as a direct enhancer of procollagen C proteinase activity of tolloid-like metalloproteinases. The level of fibrosis, in which procollagen processing by tolloid-like proteinases has a rate-limiting role, is markedly reduced in Sfrp2-null mice subjected to myocardial infarction. This reduced level of fibrosis is accompanied by significantly improved cardiac function