Biotinylated Human Activin RIIB Protein, His, Avitag™ | ACB-H82E3-25ug| Gentaur Distribution US, UK & Europe Activin receptor type-2B (ACVR2B) is also known as ActR-IIB and MGC116908, ACVR2B is an activin type 2 receptor. Activins are dimeric growth...