| node1 | node2 | node1 accession | node2 accession | node1 annotation | node2 annotation | score |
| glyA | ilvA | HI_0889 | HI_0738.1 | Serine hydroxymethyltransferase (serine methylase) (glyA); Catalyzes the reversible interconversion of serine and glycine with tetrahydrofolate (THF) serving as the one-carbon carrier. This reaction serves as the major source of one-carbon groups required for the biosynthesis of purines, thymidylate, methionine, and other important biomolecules. Also exhibits THF-independent aldolase activity toward beta-hydroxyamino acids, producing glycine and aldehydes, via a retro-aldol mechanism. | Threonine deaminase (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 (By similarity). | 0.937 |
| glyA | metXA | HI_0889 | HI_1263 | Serine hydroxymethyltransferase (serine methylase) (glyA); Catalyzes the reversible interconversion of serine and glycine with tetrahydrofolate (THF) serving as the one-carbon carrier. This reaction serves as the major source of one-carbon groups required for the biosynthesis of purines, thymidylate, methionine, and other important biomolecules. Also exhibits THF-independent aldolase activity toward beta-hydroxyamino acids, producing glycine and aldehydes, via a retro-aldol mechanism. | Homoserine acetyltransferase (met2); Transfers an acetyl group from acetyl-CoA to L-homoserine, forming acetyl-L-homoserine. Utilizes a ping-pong kinetic mechanism in which the acetyl group of acetyl-CoA is initially transferred to the enzyme to form an acetyl- enzyme intermediate before subsequent transfer to homoserine to form the final product, O-acetylhomoserine. | 0.926 |
| glyA | pssA | HI_0889 | HI_0425 | Serine hydroxymethyltransferase (serine methylase) (glyA); Catalyzes the reversible interconversion of serine and glycine with tetrahydrofolate (THF) serving as the one-carbon carrier. This reaction serves as the major source of one-carbon groups required for the biosynthesis of purines, thymidylate, methionine, and other important biomolecules. Also exhibits THF-independent aldolase activity toward beta-hydroxyamino acids, producing glycine and aldehydes, via a retro-aldol mechanism. | Phosphatidylserine synthase (pssA); Similar to GB:M58699 SP:P23830 PID:147389 GB:U00096 PID:1788940 percent identity: 50.33; identified by sequence similarity; putative. | 0.935 |
| glyA | sdaA | HI_0889 | HI_0288 | Serine hydroxymethyltransferase (serine methylase) (glyA); Catalyzes the reversible interconversion of serine and glycine with tetrahydrofolate (THF) serving as the one-carbon carrier. This reaction serves as the major source of one-carbon groups required for the biosynthesis of purines, thymidylate, methionine, and other important biomolecules. Also exhibits THF-independent aldolase activity toward beta-hydroxyamino acids, producing glycine and aldehydes, via a retro-aldol mechanism. | L-serine deaminase (sdaA); Similar to GB:M28695 SP:P16095 PID:290464 GB:U00096 PID:1736451 percent identity: 68.79; identified by sequence similarity; putative. | 0.967 |
| glyA | serB | HI_0889 | HI_1033 | Serine hydroxymethyltransferase (serine methylase) (glyA); Catalyzes the reversible interconversion of serine and glycine with tetrahydrofolate (THF) serving as the one-carbon carrier. This reaction serves as the major source of one-carbon groups required for the biosynthesis of purines, thymidylate, methionine, and other important biomolecules. Also exhibits THF-independent aldolase activity toward beta-hydroxyamino acids, producing glycine and aldehydes, via a retro-aldol mechanism. | Phosphoserine phosphatase (serB); Catalyzes the dephosphorylation of phosphoserine (P-Ser). | 0.975 |
| glyA | thrA | HI_0889 | HI_0089 | Serine hydroxymethyltransferase (serine methylase) (glyA); Catalyzes the reversible interconversion of serine and glycine with tetrahydrofolate (THF) serving as the one-carbon carrier. This reaction serves as the major source of one-carbon groups required for the biosynthesis of purines, thymidylate, methionine, and other important biomolecules. Also exhibits THF-independent aldolase activity toward beta-hydroxyamino acids, producing glycine and aldehydes, via a retro-aldol mechanism. | Aspartokinase I / homoserine dehydrogenase I (thrA); Similar to SP:P00561 GB:M10644 GB:V00360 GB:V00361 PID:147979 percent identity: 62.21; identified by sequence similarity; putative; In the C-terminal section; belongs to the homoserine dehydrogenase family. | 0.899 |
| glyA | trpA | HI_0889 | HI_1432 | Serine hydroxymethyltransferase (serine methylase) (glyA); Catalyzes the reversible interconversion of serine and glycine with tetrahydrofolate (THF) serving as the one-carbon carrier. This reaction serves as the major source of one-carbon groups required for the biosynthesis of purines, thymidylate, methionine, and other important biomolecules. Also exhibits THF-independent aldolase activity toward beta-hydroxyamino acids, producing glycine and aldehydes, via a retro-aldol mechanism. | Tryptophan synthase alpha subunit (trpA); The alpha subunit is responsible for the aldol cleavage of indoleglycerol phosphate to indole and glyceraldehyde 3-phosphate. Belongs to the TrpA family. | 0.943 |
| glyA | trpB | HI_0889 | HI_1431 | Serine hydroxymethyltransferase (serine methylase) (glyA); Catalyzes the reversible interconversion of serine and glycine with tetrahydrofolate (THF) serving as the one-carbon carrier. This reaction serves as the major source of one-carbon groups required for the biosynthesis of purines, thymidylate, methionine, and other important biomolecules. Also exhibits THF-independent aldolase activity toward beta-hydroxyamino acids, producing glycine and aldehydes, via a retro-aldol mechanism. | Tryptophan synthase beta subunit (trpB); The beta subunit is responsible for the synthesis of L- tryptophan from indole and L-serine. | 0.933 |
| ilvA | glyA | HI_0738.1 | HI_0889 | Threonine deaminase (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 (By similarity). | Serine hydroxymethyltransferase (serine methylase) (glyA); Catalyzes the reversible interconversion of serine and glycine with tetrahydrofolate (THF) serving as the one-carbon carrier. This reaction serves as the major source of one-carbon groups required for the biosynthesis of purines, thymidylate, methionine, and other important biomolecules. Also exhibits THF-independent aldolase activity toward beta-hydroxyamino acids, producing glycine and aldehydes, via a retro-aldol mechanism. | 0.937 |
| ilvA | metB | HI_0738.1 | HI_0086 | Threonine deaminase (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 (By similarity). | Cystathionine gamma-synthase (metB); Catalyzes the formation of L-cystathionine from O-succinyl-L- homoserine (OSHS) and L-cysteine, via a gamma-replacement reaction. In the absence of thiol, catalyzes gamma-elimination to form 2- oxobutanoate, succinate and ammonia (By similarity). | 0.937 |
| ilvA | metXA | HI_0738.1 | HI_1263 | Threonine deaminase (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 (By similarity). | Homoserine acetyltransferase (met2); Transfers an acetyl group from acetyl-CoA to L-homoserine, forming acetyl-L-homoserine. Utilizes a ping-pong kinetic mechanism in which the acetyl group of acetyl-CoA is initially transferred to the enzyme to form an acetyl- enzyme intermediate before subsequent transfer to homoserine to form the final product, O-acetylhomoserine. | 0.931 |
| ilvA | pssA | HI_0738.1 | HI_0425 | Threonine deaminase (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 (By similarity). | Phosphatidylserine synthase (pssA); Similar to GB:M58699 SP:P23830 PID:147389 GB:U00096 PID:1788940 percent identity: 50.33; identified by sequence similarity; putative. | 0.920 |
| ilvA | sdaA | HI_0738.1 | HI_0288 | Threonine deaminase (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 (By similarity). | L-serine deaminase (sdaA); Similar to GB:M28695 SP:P16095 PID:290464 GB:U00096 PID:1736451 percent identity: 68.79; identified by sequence similarity; putative. | 0.938 |
| ilvA | serB | HI_0738.1 | HI_1033 | Threonine deaminase (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 (By similarity). | Phosphoserine phosphatase (serB); Catalyzes the dephosphorylation of phosphoserine (P-Ser). | 0.923 |
| ilvA | thrA | HI_0738.1 | HI_0089 | Threonine deaminase (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 (By similarity). | Aspartokinase I / homoserine dehydrogenase I (thrA); Similar to SP:P00561 GB:M10644 GB:V00360 GB:V00361 PID:147979 percent identity: 62.21; identified by sequence similarity; putative; In the C-terminal section; belongs to the homoserine dehydrogenase family. | 0.947 |
| ilvA | thrB | HI_0738.1 | HI_0088 | Threonine deaminase (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 (By similarity). | Homoserine kinase (thrB); Catalyzes the ATP-dependent phosphorylation of L-homoserine to L-homoserine phosphate; Belongs to the GHMP kinase family. Homoserine kinase subfamily. | 0.670 |
| ilvA | trpA | HI_0738.1 | HI_1432 | Threonine deaminase (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 (By similarity). | Tryptophan synthase alpha subunit (trpA); The alpha subunit is responsible for the aldol cleavage of indoleglycerol phosphate to indole and glyceraldehyde 3-phosphate. Belongs to the TrpA family. | 0.925 |
| ilvA | trpB | HI_0738.1 | HI_1431 | Threonine deaminase (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 (By similarity). | Tryptophan synthase beta subunit (trpB); The beta subunit is responsible for the synthesis of L- tryptophan from indole and L-serine. | 0.949 |
| metB | ilvA | HI_0086 | HI_0738.1 | Cystathionine gamma-synthase (metB); Catalyzes the formation of L-cystathionine from O-succinyl-L- homoserine (OSHS) and L-cysteine, via a gamma-replacement reaction. In the absence of thiol, catalyzes gamma-elimination to form 2- oxobutanoate, succinate and ammonia (By similarity). | Threonine deaminase (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 (By similarity). | 0.937 |
| metB | metXA | HI_0086 | HI_1263 | Cystathionine gamma-synthase (metB); Catalyzes the formation of L-cystathionine from O-succinyl-L- homoserine (OSHS) and L-cysteine, via a gamma-replacement reaction. In the absence of thiol, catalyzes gamma-elimination to form 2- oxobutanoate, succinate and ammonia (By similarity). | Homoserine acetyltransferase (met2); Transfers an acetyl group from acetyl-CoA to L-homoserine, forming acetyl-L-homoserine. Utilizes a ping-pong kinetic mechanism in which the acetyl group of acetyl-CoA is initially transferred to the enzyme to form an acetyl- enzyme intermediate before subsequent transfer to homoserine to form the final product, O-acetylhomoserine. | 0.949 |
