2.1.1.156 - 659286 2.1.1.156 both native and recombinant protein 758143 2.1.1.156 by hydrophobic interaction chromatography, ammonium sulfate fractionation, gel filtration, ion exchange chromatography and ultrafiltration 659145 2.1.1.156 recombinant enzyme from Escherichia coli by ammonium sulfate fractionation and ion exchange chromatography to homogeneity 659286 2.1.1.156 recombinant enzyme from Escherichia coli by ammonium sulfate fractionation, hydrophobic and anion exchange chromatography, and ultrafiltration to homogeneity 657578 2.1.1.156 recombinant MpGSMT from Escherichia coli strain BL21(DE3) by nickel affinity chromatography 720836 2.1.1.156 recombinant protein using His-tag 671647