>sp|Q1R4X4|TDH_ECOUT L-threonine 3-dehydrogenase OS=Escherichia coli GN=tdh MKALSKLKAEEGIWMTDVPVPELGHNDLLIKIRKTAICGTDVHIYNWDEWSQKTIPVPMV VGHEYVGEVVGIGQEVKGFKIGDRVSGEGHITCGHCRNCRGGRTHLCRNTIGVGVNRPGC FAEYLVIPAFNAFKIPDNISDDLASIFDPFGNAVHTALSFDLVGEDVLVSGAGPIGIMAA AVAKHVGARNVVITDVNEYRLELARKMGITRAVNVAKENLNDVMTELGMTEGFDVGLEMS GAPPAFRTMLDTMNHGGRIAMLGIPPSDMSIDWTKVIFKGLFIKGIYGREMFETWYKMAA LIQSGLDLSPIITHRFSIDDFQKGFDAMRSGQSGKVILSWD