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Activin A is a member of the TGF-β family of proteins produced by many cell types throughout development. Activins interact with Type I and Type II serine/threonine kinases to signal to SMAD proteins to regulate a variety of functions, including cell proliferation, differentiation, wound healing, apoptosis, metabolism, etc. Activin A is a homodimer of two beta A chains and is not biologically active until the N terminal propeptide is cleaved from each. Human Activin A has 100% amino acid sequence identity to mouse, rat, pig, bovine and cat proteins.
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Figure 1: Human Activin A Bioactivity Data. MPC-11 cells were cultured with 0 to 250ng/ml human Activin A. Cell viability was measured after 66 hours and the linear portion of the curve was used to calculate the ED50. The ED50 for this lot of human Activin A was 1-1.5ng/ml. This value is comparable to the typical expected range of 1-3ng/ml.
Figure 2: 1µg in each lane (-) non-reducing conditions and (+) reducing conditions in a 4-20% TRIS-Glycine gel, stained with Coomassie Blue. Human Activin A is a homodimer with a predicted MW of 26.2 kDa.
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RUO – Research Use Only |
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