PeptideDB

Streptavidin

CAS: 9013-20-1 F: W:

Streptavidin is a ∼60 kDa homotetramer. Streptavidin binds four molecules of biotin with the highest affinity. The bind
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Bioactivity Streptavidin is a ∼60 kDa homotetramer. Streptavidin binds four molecules of biotin with the highest affinity. The binding affinity of biotin to streptavidin is one of the highest reported for a non-covalent interaction to date, with a KD ∼ 0.01 pM[1]. Streptavidin has an immunosuppressive role[2].
Invitro Streptavidin (2-200 μg/mL) significantly suppresses the proliferation of Lewis T cells to WF by 76%-83% compared with untreated responders[1]. Cell Viability Assay[1] Cell Line:
Name Streptavidin
CAS 9013-20-1
Transport Room temperature in continental US; may vary elsewhere.
Storage

Sealed storage, away from moisture

Powder -80°C 2 years
-20°C 1 year

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)