| node1 | node2 | node1 accession | node2 accession | node1 annotation | node2 annotation | score |
| fdhA | purU | SO_4509 | SO_1624 | Formate dehydrogenase molybdopterin-binding subunit FdhA; Belongs to the prokaryotic molybdopterin-containing oxidoreductase family. | Formyltetrahydrofolate deformylase PurU; Catalyzes the hydrolysis of 10-formyltetrahydrofolate (formyl-FH4) to formate and tetrahydrofolate (FH4). | 0.903 |
| fdnG | purU | SO_0101 | SO_1624 | Nitrate-inducible formate dehydrogenase molybdopterin-binding subunit FdnG; Belongs to the prokaryotic molybdopterin-containing oxidoreductase family. | Formyltetrahydrofolate deformylase PurU; Catalyzes the hydrolysis of 10-formyltetrahydrofolate (formyl-FH4) to formate and tetrahydrofolate (FH4). | 0.902 |
| fhs | folA | SO_0560 | SO_3646 | Formate--tetrahydrofolate ligase Fhs; Belongs to the formate--tetrahydrofolate ligase family. | Dihydrofolate reductase FolA; Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis. | 0.939 |
| fhs | folD | SO_0560 | SO_1792 | Formate--tetrahydrofolate ligase Fhs; Belongs to the formate--tetrahydrofolate ligase family. | Methenyltetrahydrofolate cyclohydrolase; Catalyzes the oxidation of 5,10-methylenetetrahydrofolate to 5,10-methenyltetrahydrofolate and then the hydrolysis of 5,10- methenyltetrahydrofolate to 10-formyltetrahydrofolate. | 0.999 |
| fhs | gcvT | SO_0560 | SO_0779 | Formate--tetrahydrofolate ligase Fhs; Belongs to the formate--tetrahydrofolate ligase family. | Aminomethyltransferase GcvT; The glycine cleavage system catalyzes the degradation of glycine. | 0.954 |
| fhs | glyA | SO_0560 | SO_3471 | Formate--tetrahydrofolate ligase Fhs; Belongs to the formate--tetrahydrofolate ligase family. | Serine hydroxymethyltransferase 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. | 0.973 |
| fhs | metH | SO_0560 | SO_1030 | Formate--tetrahydrofolate ligase Fhs; Belongs to the formate--tetrahydrofolate ligase family. | B12-dependent 5-methyltetrahydrofolate--homocysteine methyltransferase MetH; 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. | 0.948 |
| fhs | purN | SO_0560 | SO_2761 | Formate--tetrahydrofolate ligase Fhs; Belongs to the formate--tetrahydrofolate ligase family. | Phosphoribosylglycinamide formyltransferase PurN; Catalyzes the transfer of a formyl group from 10- formyltetrahydrofolate to 5-phospho-ribosyl-glycinamide (GAR), producing 5-phospho-ribosyl-N-formylglycinamide (FGAR) and tetrahydrofolate. | 0.971 |
| fhs | purT | SO_0560 | SO_3613 | Formate--tetrahydrofolate ligase Fhs; Belongs to the formate--tetrahydrofolate ligase family. | Phosphoribosylglycinamide formyltransferase 2 PurT; Involved in the de novo purine biosynthesis. Catalyzes the transfer of formate to 5-phospho-ribosyl-glycinamide (GAR), producing 5-phospho-ribosyl-N-formylglycinamide (FGAR). Formate is provided by PurU via hydrolysis of 10-formyl-tetrahydrofolate; Belongs to the PurK/PurT family. | 0.901 |
| fhs | purU | SO_0560 | SO_1624 | Formate--tetrahydrofolate ligase Fhs; Belongs to the formate--tetrahydrofolate ligase family. | Formyltetrahydrofolate deformylase PurU; Catalyzes the hydrolysis of 10-formyltetrahydrofolate (formyl-FH4) to formate and tetrahydrofolate (FH4). | 0.959 |
| folA | fhs | SO_3646 | SO_0560 | Dihydrofolate reductase FolA; Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis. | Formate--tetrahydrofolate ligase Fhs; Belongs to the formate--tetrahydrofolate ligase family. | 0.939 |
| folA | folD | SO_3646 | SO_1792 | Dihydrofolate reductase FolA; Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis. | Methenyltetrahydrofolate cyclohydrolase; Catalyzes the oxidation of 5,10-methylenetetrahydrofolate to 5,10-methenyltetrahydrofolate and then the hydrolysis of 5,10- methenyltetrahydrofolate to 10-formyltetrahydrofolate. | 0.434 |
| folA | gcvT | SO_3646 | SO_0779 | Dihydrofolate reductase FolA; Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis. | Aminomethyltransferase GcvT; The glycine cleavage system catalyzes the degradation of glycine. | 0.935 |
| folA | glyA | SO_3646 | SO_3471 | Dihydrofolate reductase FolA; Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis. | Serine hydroxymethyltransferase 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. | 0.943 |
| folA | metH | SO_3646 | SO_1030 | Dihydrofolate reductase FolA; Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis. | B12-dependent 5-methyltetrahydrofolate--homocysteine methyltransferase MetH; 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. | 0.936 |
| folA | purN | SO_3646 | SO_2761 | Dihydrofolate reductase FolA; Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis. | Phosphoribosylglycinamide formyltransferase PurN; Catalyzes the transfer of a formyl group from 10- formyltetrahydrofolate to 5-phospho-ribosyl-glycinamide (GAR), producing 5-phospho-ribosyl-N-formylglycinamide (FGAR) and tetrahydrofolate. | 0.934 |
| folA | purT | SO_3646 | SO_3613 | Dihydrofolate reductase FolA; Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis. | Phosphoribosylglycinamide formyltransferase 2 PurT; Involved in the de novo purine biosynthesis. Catalyzes the transfer of formate to 5-phospho-ribosyl-glycinamide (GAR), producing 5-phospho-ribosyl-N-formylglycinamide (FGAR). Formate is provided by PurU via hydrolysis of 10-formyl-tetrahydrofolate; Belongs to the PurK/PurT family. | 0.900 |
| folA | purU | SO_3646 | SO_1624 | Dihydrofolate reductase FolA; Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis. | Formyltetrahydrofolate deformylase PurU; Catalyzes the hydrolysis of 10-formyltetrahydrofolate (formyl-FH4) to formate and tetrahydrofolate (FH4). | 0.918 |
| folD | fhs | SO_1792 | SO_0560 | Methenyltetrahydrofolate cyclohydrolase; Catalyzes the oxidation of 5,10-methylenetetrahydrofolate to 5,10-methenyltetrahydrofolate and then the hydrolysis of 5,10- methenyltetrahydrofolate to 10-formyltetrahydrofolate. | Formate--tetrahydrofolate ligase Fhs; Belongs to the formate--tetrahydrofolate ligase family. | 0.999 |
| folD | folA | SO_1792 | SO_3646 | Methenyltetrahydrofolate cyclohydrolase; Catalyzes the oxidation of 5,10-methylenetetrahydrofolate to 5,10-methenyltetrahydrofolate and then the hydrolysis of 5,10- methenyltetrahydrofolate to 10-formyltetrahydrofolate. | Dihydrofolate reductase FolA; Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis. | 0.434 |