Activin RIA, also known as ALK2, TSK7L, SKR1, TSRI, and ACTRI, is a glycosylated 65 kDa type I receptor in the TGFβ serine/threonine kinase receptor family. Binding of TGFβ superfamily ligands induces formation of a heterotetrameric complex that contains two chains each of a type I and a type II receptor in multiple combinations. The type II receptors phosphorylate the type I receptors which then phosphorylate and activate Smad signal transduction proteins. Activin RIA functions in a wide variety of growth and differentiation processes including gastrulation, skeletal system development, and cardiac morphogenesis. Mature human Activin RIA consists of a 103 aa extracellular domain (ECD), a 23 aa transmembrane segment, and a 363 aa cytoplasmic region that includes a Gly/Serrich GS box and the kinase domain. Within the ECD, human Activin RIA shares 99% and 94% aa sequence identity with mouse and rat Activin RIA, respectively. It shares 20% 26% aa sequence identity with other human type I receptors Activin RIB, BMPRIA, BMPRIB, and TGFβ RI. BMP signaling through Activin RIA is enhanced by the direct interaction between Activin RIA and RGMB/ DRAGON, a BMP coreceptor that also associates with other type I and type II receptors. Activin RIA can additionally phosphorylate the coreceptor Endoglin and is required for the inhibitory effect of Endoglin on prostate cancer cell motility.
1787.52RON
În stoc
Număr Catalog 209-101-M173CategorieAfaceri și industrie > Știință și laboratorFurnizorReliaTechGentaurDimensiune100 µgTipsingle
