ProSpec Bio Recombinant E. coli Beta Lactamase, His Tag, Active

Recombinant E. coli Beta Lactamase, His Tag, Active by ProSpec Bio is recombinant beta-lactamase (amino acids 20-377) produced in E. coli with a 20-amino-acid His tag at the N-terminus, a 379-amino-acid protein of 41.8 kDa that is more than 95% pure. ProSpec Bio reports biological activity data for it. It is supplied as a solution (1 mg/mL in 20 mM Tris-HCl buffer (pH 8.0) and 10% glycerol) in 2 µg, 10 µg and 1 mg sizes for antibiotic resistance and reporter assay research.