Biotin ligase BirA, GenBank Accession No. NP_418404, a.a. 2 - 321 with N-terminal His-FLAG tag, MW = 37.1 kDa, expressed in an E. coli cell expression system.
Immunogen Region
2-321 (end)
Tag
N-terminal His-FLAG-tags
Formulation
50 mM Tris-HCl, pH 8.0, 50 mM NaCl, 150 mM imidazole, 3 mM DTT, and 5% glycerol.
Species
E. coli
Application
Useful for the study of enzyme kinetics, screening inhibitors, and selectivity profiling
Notes
BirA (10 ug/ml) completely biotinylated 10 uM of substrate MBP-Avi at 30°C for 30 minutes in the standard reaction buffer containing 50 mM Bicine pH 8.3, 10 mM ATP, 10 mM MgOAc, and 50 uM d-Biotin.
Avoid freeze/thaw cycles.
GenBank
NP_418404
Mw(kda)
37.1 kDa
Synonyms
Biotin protein ligase, biotin ligase
Uniprot
H0QFJ5
Shipping Temperature
-80°C (dry ice)
Format
Aqueous buffer solution
Storage
At least 6 months at -80°C.
Reference
1. Li, Y., et al., Protein Expr Purif. 2012 Mar; 82(1): 162-7. 2. Chakravartty, V., et al., J Bacteriol. 2012 Mar; 194(5): 1113-26.