BULKBIRA
BIRA-500
MSPP-BULKBIRAEA
1507.69
USD
InStock
MSPP-BULKBIRA
MSPP-BIRA500
BirA Biotin-Protein Ligase Reaction Kits, Avidity
Protein Linking and Labeling Systems
The BirA biotin-protein ligase adds d-biotin covalently to biotin-acceptor peptides/proteins via an ATP intermediate (biotinyl 5'-adenylate) in a highly efficient and targeted manner.
BirA biotin-protein ligase activates biotin to form biotinyl 5'-adenylate and transfers the biotin to biotin-accepting proteins (such as AviTag™ peptide). It also functions as a biotin operon repressor. The protein is encoded by the birA gene.
The well known biotin-avidin/streptavidin interaction is often exploited for affinity chromatography or protein immobilization on surfaces or substrates. Protein detection via anti-biotin antibodies or avidin/streptavidin-reporter enzyme conjugates (-HRP, -alkaline phosphatase) or fluorescent probes becomes possible. Multimeric forms of biotinylated MHC molecules are popular tools in immunobiology.
When used in combination with biotin-acceptor peptide amino acid sequence, biotinylation occurs at twice the rate of the natural E. coli BCCP substrate and as much as an order of magnitude or more over other biotinylation of peptide sequences.
BirA enzyme is E. coli wild-type, encoded by the birA gene, and purified to greater than 99% purity by traditional methods.
Other names for this enzyme include: biotin ligase; biotin operon repressor protein; birA; biotin holoenzyme synthetase; biotin-[acetyl-CoA carboxylase] synthetase; biotin-[acetyl-CoA-carboxylase] ligase; biotin-[acetyl-CoA carboxylase] synthetase; acetyl CoA holocarboxylase synthetase; acetyl CoA holocarboxylase synthetase; biotin:apocarboxylase ligase; biotin holoenzyme synthetase; HCS.
Información de suministro: Standard Reaction Kit includes: 2 vials of 20 µl each 1 mg/ml BirA biotin-protein ligase (40 µg total); 2 vials of 1.5 ml each BiomixA (0.5 M bicine buffer solution, pH 8.3); 2 vials of 1.5 ml each BiomixB (100 mM ATP, 100 mM Mg(OAc)2, 500 µM d-biotin); 2 vials of 1.5 ml each additional BIO-200 (500 µM d-biotin).
Bulk Reaction Kit includes: 10 vials of 10 µl each 3 mg/ml BirA biotin-protein ligase (300 µg total); 10 vials of 1.5 ml each BiomixA (0.5 M bicine buffer solution, pH 8.3); 10 vials of 1.5 ml each BiomixB (100 mM ATP, 100 mM Mg2+acetate, 500 µM d-biotin); 10 vials of 1.5 ml each additional BIO-200 (500 µM d-biotin).