ACVR2A, also known as Activin RIIA, is an activin type II receptor. On ligand binding, ACVR2A can forms a receptor complex consisting of two type II and two type I transmembrane serine/threonine kinases. ACVR2A is a receptor for Activin A, Activin B and Inhibin A[1][2]. ACVR2A/Activin RIIA Protein, Mouse (HEK293, His) is produced in HEK293 cells with a C-Terminal His-tag. It consists of 134 amino acids (M1-P134) .