Description:
Activin A is a TGF-β 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-β antagonist, Follistatin. Human Activin A is a 26.0 kDa disulfide-linked homodimer of two β A chains, each containing 116 amino acid residues. *Manufactured using (BTI-Tn-5B1-4) cells under license from the Boyce Thompson Institute for Plant Research, Inc.
AA Sequence:
GLECDGKVNI CCKKQFFVSF KDIGWNDWII APSGYHANYC EGECPSHIAG TSGSSLSFHS TVINHYRMRG HSPFANLKSC CVPTKLRPMS MLYYDDGQNI IKKDIQNMIV EECGCS
Source:
(BTI‐Tn‐5B1‐4) Hi‐5 Insect cells*
Purity:
Greater than 95% by SDS-PAGE gel and HPLC analyses.
Biological Activity:
The ED50 as determined by its ability to inhibit the proliferation of murine MPC-11 cells is ≤ 2 ng/ml, corresponding to a specific activity of ≥ 5 x 105 units/mg.
Cross Reactivity:
Mouse, Dog, Human + Mouse, Frog, Chicken