Recombinant Streptomyces Avidinii SAV Protein (aa 25-183) [His] (VAng-Cr1469)

Yeast

Bacterial Antigens

ELISA, WB, SDS-PAGE, Immunogen, etc.

20 mM Tris-HCl based buffer, pH 8.0.

> 90% pure by SDS-PAGE.

Store at -20°C to -80°C.

Streptomyces Avidinii is a bacterium species from the genus of Streptomyces which produces streptavidin. It is often from the hen egg-white protein, avidin, which has high affinity to biotin. Its homologous core shares 33% sequence similarity with avidin, as well as sharing a common tetrameric structure. It is a crystalline tetrameric protein, with a molecular weight of 15000Da. It binds four molecules of biotin. Streptavidin lacks carbohydrate and sulfur-containing amino acids. Streptavidin is a crystalline protein isolated from its bacterium and possesses biotin-binding ability. It has four binding sites for biotin like avidin and binds four molecules of biotin. Streptavidin is now considered as a new type of biotin-binding protein.

S. avidinii