3.2.2.28 - 690873, 691667, 694330 3.2.2.28 expressed in Escherichia coli BH214 cells 732137 3.2.2.28 gene Rv1259, DNA and amino aid sequence determination and analysis, cloning and overexpression of His6-tagged wild-type and mutant enzymes in Escherichia coli strains 679463