>tr|A0A644UBG3|A0A644UBG3_9ZZZZ homoserine kinase OS=bioreactor metagenome GN=thrB_6 MVRVRIPATSANLGPGFDCLGMALSLYNVVQIEAADSFQIALKGDYTAGIPGDETNLVWQ SMCNLWEAIGFEIPTVSLELENNIPPTRGMGSSSAAIVGGLVAANEYAGGVLSKQQILQI ANRIEGHPDNVAPALLGGVTLAVTAEASVIARTVHSQPQFMALAIVPDFYLSTEKSRNVL PASISRADAVYNLSRTALLVEALIHENHELLKEGMQDRLHQNQRAGLVPGLGETLQVALD SGAYGSALSGSGPTILALVSSHRAEQVSQAMVDSLAAHGLTAKAYLLSVDSEGAAVI