Fig. 1From: Improvement of alkalophilicity of an alkaline xylanase Xyn11A-LC from Bacillus sp. SN5 by random mutation and Glu135 saturation mutagenesisSDS–PAGE analysis of the purified xylanase Xyn11A-LC and mutants. Lane M, the protein molecular mass markers; Lane 1–4, the purified recombinant Xyn11A-LC, M52-C10, E135V and E135R, respectivelyBack to article page