Expression or recombinant KatG protein for
catalase-peroxidase of Mycobacterium sp. strain PYR-1 in
E. coli. Lane M, protein size markers; lanes 1 to 3,
SDS-polyacrylamide gel stained with Coomassie blue to show the total
proteins; lane 1, sample from the supernatant; lane 2, sample from the
pellet; lane 3, partially purified recombinant protein from the pellet;
lane 4, purified recombinant protein from the supernatant stained with
DAB to show catalase-peroxidase enzyme activity.