Activin-A Human Recombinant, Active

Lyophilized powder at room temperature.

Active form Activin-A Human Recombinant produced in e.coli is a homodimeric, non-glycosylated, polypeptide chain containing 2 x 117 amino acids and having a molecular weight of 26.2kDa.The Active form Activin-A is purified by standard chromatographic techniques.
Amino Acid Sequence:MGLECDGKVN ICCKKQFFVS FKDIGWNDWI IAPSGYHANY CEGECPSHIA GTSGSSLSFH STVINHYRMR GHSPFANLKS CCVPTKLRPM SMLYYDDGQN IIKKDIQNMI VEECGCS.
Physical Appearance and Stability: Lyophilized Activin-A although stable at room temperature for 3 weeks, should be stored desiccated below -18C. Upon reconstitution Activin-A should be stored at 4C between 2-7 days and for future use below -18C.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.
Formulation and Purity: Human Activin-A was lyophilized from a concentrated 1mg/ml protein solution containing 0.02% TFA. Greater than 95% as obsereved by SDS-PAGE.
Solubility: Human INHBA protein should be reconstituted in distilled pyrogen free water to a concentration of 100ug /ml which can then be further diluted to other aqueous solutions.
Biological Activity: Biological activity is assessed by the ability to induce cytoxicity of MPC-11 cells and was found to be 1-1.5 ng/ml corresponding to a specific activity of 666, 667-1, 000, 000 Units/mg.