3.4.23.49 - 3.4.23.49 recombinant enzyme from Escherichia coli AN1 cells 3.4.23.49 recombinant protein, gel filtration and SDS-PAGE 3.4.23.49 recombinant wild-type and mutant enzymes 3.4.23.49 recombinant wild-type enzyme CroP from DELTAcroP-deletion mutant strain of Citrobacter rodentium crude extract by detergent solubilization, ultracentrifugation, anion exchange chromatography, and dialysis