ACVR2B antibody, XAR1 antibody, actr-iib antibody, actriib antibody, ACTRIIB antibody, ActR-IIB antibody, HTX4 antibody, ActRIIB antibody, actr2b antibody, actrIIb antibody, wu:fj97d11 antibody, activin A receptor type 2B antibody, activin A receptor type 2B L homeolog antibody, activin A receptor type 2Ba antibody, activin receptor IIB antibody, ACVR2B antibody, acvr2b antibody, acvr2b.L antibody, Acvr2b antibody, acvr2ba antibody
背景
Activins are dimeric growth and differentiation factors which belong to the transforming growth factor-beta (TGF-beta) superfamily of structurally related signaling proteins. Activins signal through a heteromeric complex of receptor serine kinases which include at least two type I (I and IB) and two type II (II and IIB) receptors. These receptors are all transmembrane proteins, composed of a ligand-binding extracellular domain with cysteine-rich region, a transmembrane domain, and a cytoplasmic domain with predicted serine/threonine specificity. Type I receptors are essential for signaling, and type II receptors are required for binding ligands and for expression of type I receptors. Type I and II receptors form a stable complex after ligand binding, resulting in phosphorylation of type I receptors by type II receptors. Type II receptors are considered to be constitutively active kinases. This gene encodes activin A type IIB receptor, which displays a 3- to 4-fold higher affinity for the ligand than activin A type II receptor.,ACVR2B,ACTRIIB,ActR-IIB,HTX4,Signal Transduction,Kinase,Cell Biology & Developmental Biology,Cytoskeleton,Microfilaments,Stem Cells,ACVR2B