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Recombinant Minimum Streptavidin used in ELISA, IHC, TRFIA, quantifying PCR

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Recombinant Minimum Streptavidin  used in ELISA, IHC, TRFIA, quantifying PCR

 

  • Product Name: Recombinant Minimum Streptavidin (r-mSA)
  • Catalog Number:  NRPA12S
  • Packing details:  1 mg, 10 mg, 100 mg, 500 mg
  • Formulation:   Lyophilized from 10 mM PB (9.9 mM Na2HPO4, 0.1 mM NaH2PO4, pH8.5)
  • Mol. Wt.: 12.4 kDa for monomer, 49.6 kDa for tetramer
  • Storage condition:  -20oC
  • Resources:  Escherichia coli(E. coli)
  • Purity:  ≥95% by SDS-PAGE analysis
  • Theory pI: 6.07
  • Theoretical Activity: 19.7 U/mg protein (r-mSA:Biotin = 1:4 (mol:mol))

    Activity: ≥17 U/mg protein (Determined by NUPTEC according to modified Green Method)

Description:

 

    

Streptavidin is a homotetrameric protein secreted from Streptomyces avidinii. Similar to avidin, 

one mole of streptavidin can bind 4 moles of biotin with a high affinity . 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.

R-mSA is a 118 amino acid protein which is improved in stability and specificity by the removal

 of activity-unrelated sequence compared to native streptavidin.

                                                     

                                        M: Protein Molecular Weight Marker

                                   &nb
Recombinant Minimum Streptavidin used in ELISA, IHC, TRFIA, quantifying PCR

 
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