| node1 | node2 | node1 accession | node2 accession | node1 annotation | node2 annotation | score |
| MCA1616 | ahcY | MCA1616 | MCA0138 | C-5 cytosine-specific DNA methylase family protein; Identified by match to protein family HMM PF00145; match to protein family HMM TIGR00675. | Adenosylhomocysteinase; May play a key role in the regulation of the intracellular concentration of adenosylhomocysteine. | 0.903 |
| MCA1616 | metK-1 | MCA1616 | MCA0139 | C-5 cytosine-specific DNA methylase family protein; Identified by match to protein family HMM PF00145; match to protein family HMM TIGR00675. | S-adenosylmethionine synthetase; Catalyzes the formation of S-adenosylmethionine (AdoMet) from methionine and ATP. The overall synthetic reaction is composed of two sequential steps, AdoMet formation and the subsequent tripolyphosphate hydrolysis which occurs prior to release of AdoMet from the enzyme. | 0.912 |
| MCA1616 | metK-2 | MCA1616 | MCA0450 | C-5 cytosine-specific DNA methylase family protein; Identified by match to protein family HMM PF00145; match to protein family HMM TIGR00675. | S-adenosylmethionine synthetase; Identified by match to protein family HMM PF00438; match to protein family HMM PF02772; match to protein family HMM PF02773; match to protein family HMM TIGR01034; Belongs to the AdoMet synthase family. | 0.912 |
| MCA1616 | speD | MCA1616 | MCA1749 | C-5 cytosine-specific DNA methylase family protein; Identified by match to protein family HMM PF00145; match to protein family HMM TIGR00675. | S-adenosylmethionine decarboxylase proenzyme; Catalyzes the decarboxylation of S-adenosylmethionine to S- adenosylmethioninamine (dcAdoMet), the propylamine donor required for the synthesis of the polyamines spermine and spermidine from the diamine putrescine; Belongs to the prokaryotic AdoMetDC family. Type 2 subfamily. | 0.900 |
| ahcY | MCA1616 | MCA0138 | MCA1616 | Adenosylhomocysteinase; May play a key role in the regulation of the intracellular concentration of adenosylhomocysteine. | C-5 cytosine-specific DNA methylase family protein; Identified by match to protein family HMM PF00145; match to protein family HMM TIGR00675. | 0.903 |
| ahcY | glyA | MCA0138 | MCA1660 | Adenosylhomocysteinase; May play a key role in the regulation of the intracellular concentration of adenosylhomocysteine. | Serine hydroxymethyltransferase; 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. | 0.508 |
| ahcY | metE | MCA0138 | MCA2260 | Adenosylhomocysteinase; May play a key role in the regulation of the intracellular concentration of adenosylhomocysteine. | 5-methyltetrahydropteroyltriglutamate-- homocysteine S-methyltransferase; Catalyzes the transfer of a methyl group from 5- methyltetrahydrofolate to homocysteine resulting in methionine formation; Belongs to the vitamin-B12 independent methionine synthase family. | 0.978 |
| ahcY | metF | MCA0138 | MCA0137 | Adenosylhomocysteinase; May play a key role in the regulation of the intracellular concentration of adenosylhomocysteine. | 5,10-methylenetetrahydrofolate reductase; Identified by similarity to SP:P00394; match to protein family HMM PF02219; match to protein family HMM TIGR00676; Belongs to the methylenetetrahydrofolate reductase family. | 0.701 |
| ahcY | metH | MCA0138 | MCA1545 | Adenosylhomocysteinase; May play a key role in the regulation of the intracellular concentration of adenosylhomocysteine. | 5-methyltetrahydrofolate--homocysteine methyltransferase; Catalyzes the transfer of a methyl group from methyl- cobalamin to homocysteine, yielding enzyme-bound cob(I)alamin and methionine. Subsequently, remethylates the cofactor using methyltetrahydrofolate. | 0.961 |
| ahcY | metK-1 | MCA0138 | MCA0139 | Adenosylhomocysteinase; May play a key role in the regulation of the intracellular concentration of adenosylhomocysteine. | S-adenosylmethionine synthetase; Catalyzes the formation of S-adenosylmethionine (AdoMet) from methionine and ATP. The overall synthetic reaction is composed of two sequential steps, AdoMet formation and the subsequent tripolyphosphate hydrolysis which occurs prior to release of AdoMet from the enzyme. | 0.851 |
| ahcY | metK-2 | MCA0138 | MCA0450 | Adenosylhomocysteinase; May play a key role in the regulation of the intracellular concentration of adenosylhomocysteine. | S-adenosylmethionine synthetase; Identified by match to protein family HMM PF00438; match to protein family HMM PF02772; match to protein family HMM PF02773; match to protein family HMM TIGR01034; Belongs to the AdoMet synthase family. | 0.720 |
| birA | metK-1 | MCA1781 | MCA0139 | birA bifunctional protein; Acts both as a biotin--[acetyl-CoA-carboxylase] ligase and a biotin-operon repressor. In the presence of ATP, BirA activates biotin to form the BirA-biotinyl-5'-adenylate (BirA-bio-5'-AMP or holoBirA) complex. HoloBirA can either transfer the biotinyl moiety to the biotin carboxyl carrier protein (BCCP) subunit of acetyl-CoA carboxylase, or bind to the biotin operator site and inhibit transcription of the operon. | S-adenosylmethionine synthetase; Catalyzes the formation of S-adenosylmethionine (AdoMet) from methionine and ATP. The overall synthetic reaction is composed of two sequential steps, AdoMet formation and the subsequent tripolyphosphate hydrolysis which occurs prior to release of AdoMet from the enzyme. | 0.648 |
| birA | metK-2 | MCA1781 | MCA0450 | birA bifunctional protein; Acts both as a biotin--[acetyl-CoA-carboxylase] ligase and a biotin-operon repressor. In the presence of ATP, BirA activates biotin to form the BirA-biotinyl-5'-adenylate (BirA-bio-5'-AMP or holoBirA) complex. HoloBirA can either transfer the biotinyl moiety to the biotin carboxyl carrier protein (BCCP) subunit of acetyl-CoA carboxylase, or bind to the biotin operator site and inhibit transcription of the operon. | S-adenosylmethionine synthetase; Identified by match to protein family HMM PF00438; match to protein family HMM PF02772; match to protein family HMM PF02773; match to protein family HMM TIGR01034; Belongs to the AdoMet synthase family. | 0.648 |
| glyA | ahcY | MCA1660 | MCA0138 | Serine hydroxymethyltransferase; 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. | Adenosylhomocysteinase; May play a key role in the regulation of the intracellular concentration of adenosylhomocysteine. | 0.508 |
| glyA | metE | MCA1660 | MCA2260 | Serine hydroxymethyltransferase; 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. | 5-methyltetrahydropteroyltriglutamate-- homocysteine S-methyltransferase; Catalyzes the transfer of a methyl group from 5- methyltetrahydrofolate to homocysteine resulting in methionine formation; Belongs to the vitamin-B12 independent methionine synthase family. | 0.493 |
| glyA | metF | MCA1660 | MCA0137 | Serine hydroxymethyltransferase; 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. | 5,10-methylenetetrahydrofolate reductase; Identified by similarity to SP:P00394; match to protein family HMM PF02219; match to protein family HMM TIGR00676; Belongs to the methylenetetrahydrofolate reductase family. | 0.952 |
| glyA | metH | MCA1660 | MCA1545 | Serine hydroxymethyltransferase; 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. | 5-methyltetrahydrofolate--homocysteine methyltransferase; Catalyzes the transfer of a methyl group from methyl- cobalamin to homocysteine, yielding enzyme-bound cob(I)alamin and methionine. Subsequently, remethylates the cofactor using methyltetrahydrofolate. | 0.947 |
| glyA | metK-1 | MCA1660 | MCA0139 | Serine hydroxymethyltransferase; 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. | S-adenosylmethionine synthetase; Catalyzes the formation of S-adenosylmethionine (AdoMet) from methionine and ATP. The overall synthetic reaction is composed of two sequential steps, AdoMet formation and the subsequent tripolyphosphate hydrolysis which occurs prior to release of AdoMet from the enzyme. | 0.646 |
| glyA | metK-2 | MCA1660 | MCA0450 | Serine hydroxymethyltransferase; 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. | S-adenosylmethionine synthetase; Identified by match to protein family HMM PF00438; match to protein family HMM PF02772; match to protein family HMM PF02773; match to protein family HMM TIGR01034; Belongs to the AdoMet synthase family. | 0.646 |
| glyA | ribE | MCA1660 | MCA1655 | Serine hydroxymethyltransferase; 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. | 6,7-dimethyl-8-ribityllumazine synthase; Catalyzes the formation of 6,7-dimethyl-8-ribityllumazine by condensation of 5-amino-6-(D-ribitylamino)uracil with 3,4-dihydroxy-2- butanone 4-phosphate. This is the penultimate step in the biosynthesis of riboflavin; Belongs to the DMRL synthase family. | 0.626 |
