Plays an important role in the organization of the cytoskeleton (By similarity). Binds to and sequesters actin monomers (G actin) and therefore inhibits actin polymerization. Source: Synthetic human Thymosin B4 Sulfoxide, at N-terminal AA Sequence: Biotin-SDKPD-M(O)-AEIEKFDKSKLKKTETQEKNPLPSKETIEQEKQAGES Storage and Stability: Lyophilized powder may be stored at -20C. Stable for 12 months after receipt at -20C. Reconstitute with sterile buffer. Aliquot to avoid repeated freezing and thawing. Store at -20C. Reconstituted product is stable for 6 months at -20C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.