2.4.1.129 60000 - x * 60000, SDS-PAGE 488532 2.4.1.129 61000 - gel filtration 488531 2.4.1.129 62200 - x * 62200, His-tagged enzyme, SDS-PAGE 723697 2.4.1.129 62856 - x * 62856, calculated from amino acid sequence 723697 2.4.1.129 90000 - x * 90000, Escherichia coli penicillin binding protein 1B alpha, beta or gamma 488534