| node1 | node2 | node1 accession | node2 accession | node1 annotation | node2 annotation | score |
| birA | folK-1 | MCA1781 | MCA2313 | 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. | 2-amino-4-hydroxy-6- hydroxymethyldihydropteridine pyrophosphokinase; Identified by similarity to SP:P26281; match to protein family HMM PF01288; match to protein family HMM TIGR01498. | 0.466 |
| birA | panB | MCA1781 | MCA2314 | 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. | 3-methyl-2-oxobutanoate hydroxymethyltransferase; Catalyzes the reversible reaction in which hydroxymethyl group from 5,10-methylenetetrahydrofolate is transferred onto alpha- ketoisovalerate to form ketopantoate; Belongs to the PanB family. | 0.686 |
| birA | panC | MCA1781 | MCA2315 | 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. | Pantoate--beta-alanine ligase; Catalyzes the condensation of pantoate with beta-alanine in an ATP-dependent reaction via a pantoyl-adenylate intermediate. Belongs to the pantothenate synthetase family. | 0.639 |
| birA | panD | MCA1781 | MCA2316 | 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. | Aspartate 1-decarboxylase; Catalyzes the pyruvoyl-dependent decarboxylation of aspartate to produce beta-alanine. | 0.628 |
| folK-1 | birA | MCA2313 | MCA1781 | 2-amino-4-hydroxy-6- hydroxymethyldihydropteridine pyrophosphokinase; Identified by similarity to SP:P26281; match to protein family HMM PF01288; match to protein family HMM TIGR01498. | 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. | 0.466 |
| folK-1 | panB | MCA2313 | MCA2314 | 2-amino-4-hydroxy-6- hydroxymethyldihydropteridine pyrophosphokinase; Identified by similarity to SP:P26281; match to protein family HMM PF01288; match to protein family HMM TIGR01498. | 3-methyl-2-oxobutanoate hydroxymethyltransferase; Catalyzes the reversible reaction in which hydroxymethyl group from 5,10-methylenetetrahydrofolate is transferred onto alpha- ketoisovalerate to form ketopantoate; Belongs to the PanB family. | 0.962 |
| folK-1 | panC | MCA2313 | MCA2315 | 2-amino-4-hydroxy-6- hydroxymethyldihydropteridine pyrophosphokinase; Identified by similarity to SP:P26281; match to protein family HMM PF01288; match to protein family HMM TIGR01498. | Pantoate--beta-alanine ligase; Catalyzes the condensation of pantoate with beta-alanine in an ATP-dependent reaction via a pantoyl-adenylate intermediate. Belongs to the pantothenate synthetase family. | 0.890 |
| folK-1 | panD | MCA2313 | MCA2316 | 2-amino-4-hydroxy-6- hydroxymethyldihydropteridine pyrophosphokinase; Identified by similarity to SP:P26281; match to protein family HMM PF01288; match to protein family HMM TIGR01498. | Aspartate 1-decarboxylase; Catalyzes the pyruvoyl-dependent decarboxylation of aspartate to produce beta-alanine. | 0.619 |
| glyA | panB | MCA1660 | MCA2314 | 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. | 3-methyl-2-oxobutanoate hydroxymethyltransferase; Catalyzes the reversible reaction in which hydroxymethyl group from 5,10-methylenetetrahydrofolate is transferred onto alpha- ketoisovalerate to form ketopantoate; Belongs to the PanB family. | 0.709 |
| ilvD | ilvE | MCA2082 | MCA2344 | Dihydroxy-acid dehydratase; Identified by similarity to SP:P51785; match to protein family HMM PF00920; match to protein family HMM TIGR00110; Belongs to the IlvD/Edd family. | Branched-chain amino acid aminotransferase; Acts on leucine, isoleucine and valine. Belongs to the class-IV pyridoxal-phosphate-dependent aminotransferase family. | 0.975 |
| ilvD | panB | MCA2082 | MCA2314 | Dihydroxy-acid dehydratase; Identified by similarity to SP:P51785; match to protein family HMM PF00920; match to protein family HMM TIGR00110; Belongs to the IlvD/Edd family. | 3-methyl-2-oxobutanoate hydroxymethyltransferase; Catalyzes the reversible reaction in which hydroxymethyl group from 5,10-methylenetetrahydrofolate is transferred onto alpha- ketoisovalerate to form ketopantoate; Belongs to the PanB family. | 0.925 |
| ilvD | panD | MCA2082 | MCA2316 | Dihydroxy-acid dehydratase; Identified by similarity to SP:P51785; match to protein family HMM PF00920; match to protein family HMM TIGR00110; Belongs to the IlvD/Edd family. | Aspartate 1-decarboxylase; Catalyzes the pyruvoyl-dependent decarboxylation of aspartate to produce beta-alanine. | 0.411 |
| ilvE | ilvD | MCA2344 | MCA2082 | Branched-chain amino acid aminotransferase; Acts on leucine, isoleucine and valine. Belongs to the class-IV pyridoxal-phosphate-dependent aminotransferase family. | Dihydroxy-acid dehydratase; Identified by similarity to SP:P51785; match to protein family HMM PF00920; match to protein family HMM TIGR00110; Belongs to the IlvD/Edd family. | 0.975 |
| ilvE | panB | MCA2344 | MCA2314 | Branched-chain amino acid aminotransferase; Acts on leucine, isoleucine and valine. Belongs to the class-IV pyridoxal-phosphate-dependent aminotransferase family. | 3-methyl-2-oxobutanoate hydroxymethyltransferase; Catalyzes the reversible reaction in which hydroxymethyl group from 5,10-methylenetetrahydrofolate is transferred onto alpha- ketoisovalerate to form ketopantoate; Belongs to the PanB family. | 0.926 |
| nadC | panB | MCA3101 | MCA2314 | Nicotinate-nucleotide pyrophosphorylase; Identified by similarity to SP:P30819; match to protein family HMM PF01729; match to protein family HMM PF02749; match to protein family HMM TIGR00078; Belongs to the NadC/ModD family. | 3-methyl-2-oxobutanoate hydroxymethyltransferase; Catalyzes the reversible reaction in which hydroxymethyl group from 5,10-methylenetetrahydrofolate is transferred onto alpha- ketoisovalerate to form ketopantoate; Belongs to the PanB family. | 0.704 |
| panB | birA | MCA2314 | MCA1781 | 3-methyl-2-oxobutanoate hydroxymethyltransferase; Catalyzes the reversible reaction in which hydroxymethyl group from 5,10-methylenetetrahydrofolate is transferred onto alpha- ketoisovalerate to form ketopantoate; Belongs to the PanB family. | 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. | 0.686 |
| panB | folK-1 | MCA2314 | MCA2313 | 3-methyl-2-oxobutanoate hydroxymethyltransferase; Catalyzes the reversible reaction in which hydroxymethyl group from 5,10-methylenetetrahydrofolate is transferred onto alpha- ketoisovalerate to form ketopantoate; Belongs to the PanB family. | 2-amino-4-hydroxy-6- hydroxymethyldihydropteridine pyrophosphokinase; Identified by similarity to SP:P26281; match to protein family HMM PF01288; match to protein family HMM TIGR01498. | 0.962 |
| panB | glyA | MCA2314 | MCA1660 | 3-methyl-2-oxobutanoate hydroxymethyltransferase; Catalyzes the reversible reaction in which hydroxymethyl group from 5,10-methylenetetrahydrofolate is transferred onto alpha- ketoisovalerate to form ketopantoate; Belongs to the PanB family. | 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. | 0.709 |
| panB | ilvD | MCA2314 | MCA2082 | 3-methyl-2-oxobutanoate hydroxymethyltransferase; Catalyzes the reversible reaction in which hydroxymethyl group from 5,10-methylenetetrahydrofolate is transferred onto alpha- ketoisovalerate to form ketopantoate; Belongs to the PanB family. | Dihydroxy-acid dehydratase; Identified by similarity to SP:P51785; match to protein family HMM PF00920; match to protein family HMM TIGR00110; Belongs to the IlvD/Edd family. | 0.925 |
| panB | ilvE | MCA2314 | MCA2344 | 3-methyl-2-oxobutanoate hydroxymethyltransferase; Catalyzes the reversible reaction in which hydroxymethyl group from 5,10-methylenetetrahydrofolate is transferred onto alpha- ketoisovalerate to form ketopantoate; Belongs to the PanB family. | Branched-chain amino acid aminotransferase; Acts on leucine, isoleucine and valine. Belongs to the class-IV pyridoxal-phosphate-dependent aminotransferase family. | 0.926 |