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ilvA | Threonine dehydratase, biosynthetic; Catalyzes the anaerobic formation of alpha-ketobutyrate and ammonia from threonine in a two-step reaction. The first step involved a dehydration of threonine and a production of enamine intermediates (aminocrotonate), which tautomerizes to its imine form (iminobutyrate). Both intermediates are unstable and short-lived. The second step is the nonenzymatic hydrolysis of the enamine/imine intermediates to form 2- ketobutyrate and free ammonia. In the low water environment of the cell, the second step is accelerated by RidA. (506 aa) | ||||
AEM46547.1 | KEGG: afr:AFE_2832 cysteine synthase B; TIGRFAM: Cysteine synthase K/M; Cysteine synthase B; PFAM: Pyridoxal phosphate-dependent enzyme, beta subunit; Belongs to the cysteine synthase/cystathionine beta- synthase family. (312 aa) | ||||
AEM47048.1 | Threonine synthase; Catalyzes the gamma-elimination of phosphate from L- phosphohomoserine and the beta-addition of water to produce L- threonine. (376 aa) | ||||
trpB | Tryptophan synthase beta chain; The beta subunit is responsible for the synthesis of L- tryptophan from indole and L-serine. (433 aa) | ||||
trpB-2 | Tryptophan synthase beta chain; The beta subunit is responsible for the synthesis of L- tryptophan from indole and L-serine. (399 aa) |