Streptavidin is a protein produced by the bacterium Streptomyces avidinii. It has four binding sites for biotin, as does avidin. Both have been used extensively as probes in immunochemical systems, conjugated to antibodies, enzymes or fluorochromes. However, avidin is highly basic (pI ~ 10.5),…

Recombinant streptavidin from streptomyces avidinii, produced in E.coli. Biotin, a 244Da vitamin (Vitamin H) molecule, exhibits an extraordinary binding affinity for streptavidin (Ka=10 15 M -1 ). Biotin and streptavidin interaction is rapid and once the bond is established it can survive up…

Synonyms: Avidin, Streptomyces avidinii Purity Limit: 98% CAS No.: 9013-20-1 Molecular Weight: 0 MDL No.: MFCD00082035 Storage Temperature: Store at

From Streptomyces avidini Biotechnology Grade Activity: >17U/mg protein Electrophoresis: Pass DNase and RNase Activity: None detected Protease: None detected Product for in vitro and lab research use only, not for human use or consumption