Biotin ligase BirA, GenBank AccessionNo. NP_418404, a.a. 2 - 321 with NterminalGST-tag, MW = 61 kDa,expressed in an E. coli cell expressionsystem.
Immunogen Region
2-321 (end)
Tag
N-terminal GST-tag
Formulation
40 mM Tris-HCl, pH 8.0, 110 mM NaCl, 2.2 mM KCl, 16 mM glutathione, 3 mM DTT, and 20% glycerol.
Species
E. coli
Application
Useful for covalently biotin-labeling of acceptor proteins for detection and purification assays.
Notes
BirA (0.16 mg/ml) completely biotinylated 10 uM of Avi-tag substrate at 30°C for 30 minutes in 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)
61 kDa
Synonyms
Biotin protein ligase, biotin ligase
Uniprot
P06709
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.