Mass: 28295.053 Da / Num. of mol.: 4 Source method: isolated from a genetically manipulated source Details: The protein was expressed with a His-tag, which was cleaved off using a protease. The mature protein sequence begins with a Trp (W) (at position 25 in the endogenous enzyme numbering) ...Details: The protein was expressed with a His-tag, which was cleaved off using a protease. The mature protein sequence begins with a Trp (W) (at position 25 in the endogenous enzyme numbering) however protease cleavage left behind a GHM before the mature sequence. Source: (gene. exp.) Klebsiella pneumoniae (bacteria) / Gene: bla OXA-48, blaOXA-48, FNY87_29090, KPE71T_00045 / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: Q6XEC0, beta-lactamase