Recombinant Streptavidin (r-SA)
Product Name: Recombinant Streptavidin (r-SA)
Catalog Number: NRPA05S
Packing Details: 1 mg, 10 mg, 100 mg, 500 mg
Formulation: Lyophilized from 5 mM PB, pH 6.3
Mol. Wt.: 16.5 kDa
Resources: Escherichia coli (E. coli)
Purity: ≥95% by SDS-PAGE analysis
Activity: ≥13 U/mg protein (Determined by NUPTEC according to modified Green Method)
Storage Condition: -20 oC
Storage Duration: 3 years
Description:
Streptavidin is a homotetrameric protein found in the culture broth of Streptomyces avidinii. Similar to avidin, one mole of streptavidin can bind 4 moles of biotin with a high affinity virtually unmatched in nature. Streptavidin lacks carbohydrate side chains present on avidin and has an isoelectric point close to neutrality. Therefore it has a reducing nonspecific binding level as compared to avidin. Streptavidin has been extensively applied in various biological fields, such as ELISA, IHC, TRFIA, quantifying PCR, isolation of single-stranded nucleotide, purification of biomolecule, and monoclonal antibody production as well.
