The specific activity was determined by the dose-dependent inhibition of proliferation of the MPC-11 cell line (mouse plasmocytoma cell line) and is typically 0.5-5ng/ml.
The Activin-A was lyophilized from 1mg/ml in 1xPBS.
White Powder, sterile filtered lyophilized (freeze-dried) powder.
Greater than 95% as obsereved by SDS-PAGE.
It is recommended to reconstitute the lyophilized Activin-A in sterile water not less than 100ug/ml, which can then be further diluted to other aqueous solutions.
Lyophilized Activin-A although stable at room temperature for 3 weeks, should be stored desiccated below -18oC. Upon reconstitution Activin-A should be stored at 4oC between 2-7 days and for future use below -18oC. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Please avoid freeze-thaw cycles.
Inhba, Inhibin beta A, FSH releasing protein.
