Compared with natural streptavidin, the recombinant core streptavidin removes the sequence unrelated to the activity, only retains the core sequence related to the activity, and is superior to natural streptavidin in stability and solubility, and adds cysteine to the C- terminal, which can be covalently bonded to the carrier.

Size: 1 mg, 10 mg, 100 mg, 500 mg
Mol. Wt.: Tetramer 54.0kDa, Monomer 13.5kDa
Resources: Escherichia coli (E. coli)
Purity: ≥95% by SDS-PAGE analysis
Activity: ≥15 U/mg protein (modified Green Method)
Concentration determination: UV absorption method, extinction coefficient E(0.1% at 280 nm) = 3.11
Storage Condition: -20 ℃
Transport: Ambient Temp
Storage Duration: 3 years