Activin... A

Activin A is a TGF-beta family member that exhibits a wide range of biological activities including regulation of cellular proliferation and differentiation, and promotion of neuronal survival. Elevated levels of Activin A in human colorectal tumors and in post-menopausal woman have been implicated in colorectal and breast cancers, respectively. The biological activities of Activin A can be neutralized by inhibins and by the diffusible TGF-beta antagonist, Follistatin. Human Activin A is a 26 kDa disulfide-linked homodimer of two beta A chains, each containing 116 amino acid residues.

Inhibin beta-1, FRP, FSH (Follicle-stimulating hormone) -releasing protein

3624

P08476

NP_002183.1

NM_002192.2

7p15-p13

Human/Mouse/Rat

Human, Mouse, Rat

GLECDGKVNICCKKQFFVSFKDIGWNDWIIAPSGYHANYCEGECPSHIAGTSGSSLSFHSTVINHYRMRGHSPFANLKSCCVPTKLRPMSMLYYDDGQNIIKKDIQNMIVEECGCS

< 0.1 ng/µg of protein (< 1EU/µg)

> 95% by SDS-PAGE & HPLC analyses

Determined by its ability to inhibit the proliferation of mouse MPC-11 cells. The expected ED50 is ≤ 2.0 ng/ml, corresponding to a specific activity of ≥ 5 x 105 units/mg.

116

Lyophilized

26.0 kDa

CHO cells