| node1 | node2 | node1 accession | node2 accession | node1 annotation | node2 annotation | score |
| ilvA | ilvB | b3772 | b3671 | L-threonine dehydratase biosynthetic IlvA; 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 | Acetolactate synthase I,valine-sensitive, large subunit; Belongs to the TPP enzyme family | 0.984 |
| ilvA | ilvC | b3772 | b3774 | L-threonine dehydratase biosynthetic IlvA; 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 | Ketol-acid reductoisomerase (NADP(+)); Involved in the biosynthesis of branched-chain amino acids (BCAA). Catalyzes an alkyl-migration followed by a ketol- acid reduction of (S)-2-acetolactate (S2AL) to yield (R)-2,3- dihydroxy-isovalerate. In the isomerase reaction, S2AL is rearranged via a Mg-dependent methyl migration to produce 3- hydroxy-3-methyl-2-ketobutyrate (HMKB). In the reductase reaction, this 2-ketoacid undergoes a metal-dependent reduction by NADPH to yield (R)-2,3-dihydroxy-isovalerate. Also able to use 2- ketopantoate, 2-ketoisovalerate, 2-ketovalerate, 2-ketobutyrate, [...] | 0.967 |
| ilvA | ilvD | b3772 | b3771 | L-threonine dehydratase biosynthetic IlvA; 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 | Dihydroxy-acid dehydratase; Enzyme; Amino acid biosynthesis- Isoleucine, Valine | 0.998 |
| ilvA | ilvE | b3772 | b3770 | L-threonine dehydratase biosynthetic IlvA; 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 | Branched-chain-amino-acid aminotransferase; Acts on leucine, isoleucine and valine | 0.997 |
| ilvA | ilvH | b3772 | b0078 | L-threonine dehydratase biosynthetic IlvA; 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 | Acetolactate synthase III, valine sensitive, small subunit | 0.985 |
| ilvA | ilvI | b3772 | b0077 | L-threonine dehydratase biosynthetic IlvA; 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 | Acetolactate synthase III, valine sensitive, large subunit | 0.983 |
| ilvA | ilvM | b3772 | b3769 | L-threonine dehydratase biosynthetic IlvA; 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 | Pseudogene, acetolactate synthase 2 large subunit, valine-insensitive; acetolactate synthase II, large subunit, cryptic, interrupted | 0.978 |
| ilvA | leuB | b3772 | b0073 | L-threonine dehydratase biosynthetic IlvA; 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 | 3-isopropylmalate dehydrogenase; Catalyzes the oxidation of 3-carboxy-2-hydroxy-4- methylpentanoate (3-isopropylmalate) to 3-carboxy-4-methyl-2- oxopentanoate. The product decarboxylates to 4-methyl-2 oxopentanoate; Belongs to the isocitrate and isopropylmalate dehydrogenases family. LeuB type 1 subfamily | 0.956 |
| ilvA | ltaE | b3772 | b0870 | L-threonine dehydratase biosynthetic IlvA; 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 | Low specificity L-threonine aldolase; Catalyzes the cleavage of L-allo-threonine and L- threonine to glycine and acetaldehyde. L-threo-phenylserine and L- erythro-phenylserine are also good substrates | 0.954 |
| ilvA | thrC | b3772 | b0004 | L-threonine dehydratase biosynthetic IlvA; 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 | Threonine synthase; Catalyzes the gamma-elimination of phosphate from L- phosphohomoserine and the beta-addition of water to produce L- threonine. To a lesser extent, is able to slowly catalyze the deamination of L-threonine into alpha-ketobutyrate and that of L- serine and 3-chloroalanine into pyruvate. Is also able to rapidly convert vinylglycine to threonine, which proves that the pyridoxal p-quinonoid of vinylglycine is an intermediate in the TS reaction | 0.959 |
| ilvB | ilvA | b3671 | b3772 | Acetolactate synthase I,valine-sensitive, large subunit; Belongs to the TPP enzyme family | L-threonine dehydratase biosynthetic IlvA; 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 | 0.984 |
| ilvB | ilvC | b3671 | b3774 | Acetolactate synthase I,valine-sensitive, large subunit; Belongs to the TPP enzyme family | Ketol-acid reductoisomerase (NADP(+)); Involved in the biosynthesis of branched-chain amino acids (BCAA). Catalyzes an alkyl-migration followed by a ketol- acid reduction of (S)-2-acetolactate (S2AL) to yield (R)-2,3- dihydroxy-isovalerate. In the isomerase reaction, S2AL is rearranged via a Mg-dependent methyl migration to produce 3- hydroxy-3-methyl-2-ketobutyrate (HMKB). In the reductase reaction, this 2-ketoacid undergoes a metal-dependent reduction by NADPH to yield (R)-2,3-dihydroxy-isovalerate. Also able to use 2- ketopantoate, 2-ketoisovalerate, 2-ketovalerate, 2-ketobutyrate, [...] | 0.993 |
| ilvB | ilvD | b3671 | b3771 | Acetolactate synthase I,valine-sensitive, large subunit; Belongs to the TPP enzyme family | Dihydroxy-acid dehydratase; Enzyme; Amino acid biosynthesis- Isoleucine, Valine | 0.911 |
| ilvB | ilvE | b3671 | b3770 | Acetolactate synthase I,valine-sensitive, large subunit; Belongs to the TPP enzyme family | Branched-chain-amino-acid aminotransferase; Acts on leucine, isoleucine and valine | 0.560 |
| ilvB | ilvH | b3671 | b0078 | Acetolactate synthase I,valine-sensitive, large subunit; Belongs to the TPP enzyme family | Acetolactate synthase III, valine sensitive, small subunit | 0.974 |
| ilvB | ilvI | b3671 | b0077 | Acetolactate synthase I,valine-sensitive, large subunit; Belongs to the TPP enzyme family | Acetolactate synthase III, valine sensitive, large subunit | 0.839 |
| ilvB | ilvM | b3671 | b3769 | Acetolactate synthase I,valine-sensitive, large subunit; Belongs to the TPP enzyme family | Pseudogene, acetolactate synthase 2 large subunit, valine-insensitive; acetolactate synthase II, large subunit, cryptic, interrupted | 0.964 |
| ilvB | leuB | b3671 | b0073 | Acetolactate synthase I,valine-sensitive, large subunit; Belongs to the TPP enzyme family | 3-isopropylmalate dehydrogenase; Catalyzes the oxidation of 3-carboxy-2-hydroxy-4- methylpentanoate (3-isopropylmalate) to 3-carboxy-4-methyl-2- oxopentanoate. The product decarboxylates to 4-methyl-2 oxopentanoate; Belongs to the isocitrate and isopropylmalate dehydrogenases family. LeuB type 1 subfamily | 0.981 |
| ilvB | thrC | b3671 | b0004 | Acetolactate synthase I,valine-sensitive, large subunit; Belongs to the TPP enzyme family | Threonine synthase; Catalyzes the gamma-elimination of phosphate from L- phosphohomoserine and the beta-addition of water to produce L- threonine. To a lesser extent, is able to slowly catalyze the deamination of L-threonine into alpha-ketobutyrate and that of L- serine and 3-chloroalanine into pyruvate. Is also able to rapidly convert vinylglycine to threonine, which proves that the pyridoxal p-quinonoid of vinylglycine is an intermediate in the TS reaction | 0.455 |
| ilvC | ilvA | b3774 | b3772 | Ketol-acid reductoisomerase (NADP(+)); Involved in the biosynthesis of branched-chain amino acids (BCAA). Catalyzes an alkyl-migration followed by a ketol- acid reduction of (S)-2-acetolactate (S2AL) to yield (R)-2,3- dihydroxy-isovalerate. In the isomerase reaction, S2AL is rearranged via a Mg-dependent methyl migration to produce 3- hydroxy-3-methyl-2-ketobutyrate (HMKB). In the reductase reaction, this 2-ketoacid undergoes a metal-dependent reduction by NADPH to yield (R)-2,3-dihydroxy-isovalerate. Also able to use 2- ketopantoate, 2-ketoisovalerate, 2-ketovalerate, 2-ketobutyrate, [...] | L-threonine dehydratase biosynthetic IlvA; 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 | 0.967 |
