Activin A is a research-grade cytokine preparation providing the highest purity available. Activin A is bi-modal in action having been shown to maintain pluripotency of stem cells and promote differentiation1,2,3,4. Mature recombinant human Activin A is a ~25 kDa disulfide-linked homodimer of two 116 amino acid residue βA subunits.
Product Name
Activin A Solution, Human Recombinant
Catalog Number
03-0020
03-0020-50
Size
10 µg (03-0020)
50 µg (03-0020-50)
Purity
Greater than 97% by SDS-PAGE or HPLC analysis
Formulation
Solution in acetate buffer, pH 4.6
Handling
Thaw on ice, and store on ice during use. Centrifuge briefly to send droplets to the bottom of the tube. Avoid repeated freeze-thaw. Make single-use aliquots after thawing. Aliquots should be stored at -80 °C for no more than 3 years.
Storage and Stability
Activin A is shipped on dry ice. Activin A Solution should be stored at −80 °C.
Source
E. coli
Sterility
Sterile (0.2 µm filter)
Endotoxin Level
Less than 0.01 EU/µg of Activin A
Biologic Activity
The ED50 is within ±50% of WHO Standard (K562).
Intended Use
This product is intended for Research Use Only (RUO). Not intended for therapeutic, clinical, or diagnostic use.
