链霉亲和素

bs-0437P

Streptavidin

链霉亲和素

SA V1; SA V2; Streptavidin V1; Streptavidin V2; SA.

Lyophilized

AC

12

12/38/55 kDa

Lyophilized from 0.22um filtered solution in PBS (pH7.4).

Yes

25-183/183

Tag free

>95% as determined by SDS-PAGE

Not analyzed

Stored at -70℃ or -20℃. Avoid repeated freeze/thaw cycles.

This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.

Streptavidin is a tetrameric protein composed of identic subunits. Each subunit binds one biotin molecule with a KD of ~1x10^-15M. The preparation contains an N- and C-terminal shortened variant (core streptavidin) with improved properties concerning homogeneity, solubility, resistance towards proteolytic degradation and accessibility of the biotin binding pocket as compared to native streptavidin. The high affinity recognition of biotin and biotinylated molecules has made streptavidin one of the most important components in diagnostics and laboratory kits.