cbw:RR42_m2537 K01733 threonine synthase [EC:4.2.3.1] | (GenBank) Threonine synthase cbw:RR42_m2538 K00003 homoserine dehydrogenase [EC:1.1.1.3] | (GenBank) Homoserine dehydrogenase cbw:RR42_m2539 K14260 alanine-synthesizing transaminase [EC:2.6.1.66 2.6.1.2] | (GenBank) Aspartate aminotransferase cbw:RR42_m2540 no KO assigned | (GenBank) membrane protein, putative