Bone morphogenetic protein 7 (BMP7), also known as osteogenic protein 1 (OP1), is a widely expressed TGFβ superfamily member with important functions during embryogenesis, in the adult, and in disease. Human BMP7 is synthesized with a 29 amino acid (aa) signal sequence, a 263 aa propeptide, and a 139 aa growth factor domain. The growth factor domain of human BMP7 shares 98% aa sequence identity with mouse and rat BMP7. The BMP7 propeptide is cleaved intracellularly but often remains associated with the mature Cterminus. Based on in vivo and in vitro studies, BMP 7 has the potential to be secreted as a disulfidelinked mature homodimer, or particularly as a heteromeric complex that consists of two propeptides noncovalently associated with a mature disulfidelinked homodimer. The presence of the propeptides in BMP7 appears to stabilize the molecule and provide a docking mechanism for extracellular storage on molecules such as fibrillin 1 and 2 . The propeptides themselves do not impart latency to the complex. BMP7 binding to type II receptors rapidly displaces the prodomain:mature molecule interaction and has no effect on activity. But it is suggested that immobilized BMP7 (via prodomain:fibrillin) is inactive, allowing for possible longterm storage of the molecule. BMP 7 interacts with the type 2 receptors Activin RIIA, Activin RIIB, and BMPRII and the type 1 receptors Activin RIA, BMPRIA, and BMPRIB. BMP7 may also be processed into a disulfidelinked heterodimer with either BMP2 or BMP4. Such complexes may show increased potency and range of activity compared to BMP7 homodimers. BMP7 plays a role in a variety of organ systems. It promotes new bone formation and nephron development (10, 11), inhibits the branching of prostate epithelium (12), and antagonizes epithelialmesenchymal transition (EMT).
1787.52RON
În stoc
Număr Catalog 209-101-M238CategorieAfaceri și industrie > Știință și laboratorFurnizorReliaTechGentaurDimensiune100 µgTipsingle
