Recombinant Streptavidin 2,r-SA2

Recombinant streptavidin 2 (r-SA2) is modified from native streptavidin at the molecular level by removing the binding force to form tetramers. r-SA2 is an active monomer, but its affinity for biotin is strongly weakened (Kd≈10-7M), achieving reversible binding and dissociation. Thus, it can be used for the gentle separation and purification of proteins, antibodies, nucleic acids and other biotinylated materials.

msds of Recombinant Streptavidin 2