| node1 | node2 | node1 accession | node2 accession | node1 annotation | node2 annotation | score |
| clpX | folA | CH53_2862 | CH53_1061 | ATP-dependent Clp protease, ATP-binding subunit ClpX; ATP-dependent specificity component of the Clp protease. It directs the protease to specific substrates. Can perform chaperone functions in the absence of ClpP. | Dihydrofolate reductase; Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis. | 0.871 |
| fhs | folA | CH53_3938 | CH53_1061 | Formate--tetrahydrofolate ligase family protein; Belongs to the formate--tetrahydrofolate ligase family. | Dihydrofolate reductase; Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis. | 0.926 |
| fhs | folC | CH53_3938 | CH53_409 | Formate--tetrahydrofolate ligase family protein; Belongs to the formate--tetrahydrofolate ligase family. | Bifunctional FolC family protein; Functions in two distinct reactions of the de novo folate biosynthetic pathway. Catalyzes the addition of a glutamate residue to dihydropteroate (7,8-dihydropteroate or H2Pte) to form dihydrofolate (7,8-dihydrofolate monoglutamate or H2Pte-Glu). Also catalyzes successive additions of L-glutamate to tetrahydrofolate or 10- formyltetrahydrofolate or 5,10-methylenetetrahydrofolate, leading to folylpolyglutamate derivatives. | 0.748 |
| fhs | gcvT | CH53_3938 | CH53_2620 | Formate--tetrahydrofolate ligase family protein; Belongs to the formate--tetrahydrofolate ligase family. | Glycine cleavage system T protein; The glycine cleavage system catalyzes the degradation of glycine. | 0.943 |
| fhs | glyA | CH53_3938 | CH53_654 | Formate--tetrahydrofolate ligase family protein; Belongs to the formate--tetrahydrofolate ligase 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. | 0.977 |
| fhs | metH | CH53_3938 | CH53_2131 | Formate--tetrahydrofolate ligase family protein; Belongs to the formate--tetrahydrofolate ligase family. | Methionine synthase; 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. | 0.969 |
| fhs | purH | CH53_3938 | CH53_2111 | Formate--tetrahydrofolate ligase family protein; Belongs to the formate--tetrahydrofolate ligase family. | purH: phosphoribosylaminoimidazolecarboxamide formyltransferase/IMP cyclohydrolase. | 0.979 |
| fhs | purN | CH53_3938 | CH53_586 | Formate--tetrahydrofolate ligase family protein; Belongs to the formate--tetrahydrofolate ligase family. | Phosphoribosylglycinamide formyltransferase; 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. | 0.973 |
| fhs | purU | CH53_3938 | CH53_3864 | Formate--tetrahydrofolate ligase family protein; Belongs to the formate--tetrahydrofolate ligase family. | Formyltetrahydrofolate deformylase; Catalyzes the hydrolysis of 10-formyltetrahydrofolate (formyl-FH4) to formate and tetrahydrofolate (FH4). | 0.948 |
| folA | clpX | CH53_1061 | CH53_2862 | Dihydrofolate reductase; Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis. | ATP-dependent Clp protease, ATP-binding subunit ClpX; ATP-dependent specificity component of the Clp protease. It directs the protease to specific substrates. Can perform chaperone functions in the absence of ClpP. | 0.871 |
| folA | fhs | CH53_1061 | CH53_3938 | Dihydrofolate reductase; Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis. | Formate--tetrahydrofolate ligase family protein; Belongs to the formate--tetrahydrofolate ligase family. | 0.926 |
| folA | folC | CH53_1061 | CH53_409 | Dihydrofolate reductase; Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis. | Bifunctional FolC family protein; Functions in two distinct reactions of the de novo folate biosynthetic pathway. Catalyzes the addition of a glutamate residue to dihydropteroate (7,8-dihydropteroate or H2Pte) to form dihydrofolate (7,8-dihydrofolate monoglutamate or H2Pte-Glu). Also catalyzes successive additions of L-glutamate to tetrahydrofolate or 10- formyltetrahydrofolate or 5,10-methylenetetrahydrofolate, leading to folylpolyglutamate derivatives. | 0.950 |
| folA | gcvT | CH53_1061 | CH53_2620 | Dihydrofolate reductase; Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis. | Glycine cleavage system T protein; The glycine cleavage system catalyzes the degradation of glycine. | 0.913 |
| folA | glyA | CH53_1061 | CH53_654 | Dihydrofolate reductase; Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis. | 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. | 0.933 |
| folA | metH | CH53_1061 | CH53_2131 | Dihydrofolate reductase; Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis. | Methionine synthase; 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. | 0.931 |
| folA | purH | CH53_1061 | CH53_2111 | Dihydrofolate reductase; Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis. | purH: phosphoribosylaminoimidazolecarboxamide formyltransferase/IMP cyclohydrolase. | 0.918 |
| folA | purN | CH53_1061 | CH53_586 | Dihydrofolate reductase; Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis. | Phosphoribosylglycinamide formyltransferase; 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. | 0.913 |
| folA | purU | CH53_1061 | CH53_3864 | Dihydrofolate reductase; Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis. | Formyltetrahydrofolate deformylase; Catalyzes the hydrolysis of 10-formyltetrahydrofolate (formyl-FH4) to formate and tetrahydrofolate (FH4). | 0.915 |
| folA | thyA | CH53_1061 | CH53_2687 | Dihydrofolate reductase; Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis. | Thymidylate synthase; Catalyzes the reductive methylation of 2'-deoxyuridine-5'- monophosphate (dUMP) to 2'-deoxythymidine-5'-monophosphate (dTMP) while utilizing 5,10-methylenetetrahydrofolate (mTHF) as the methyl donor and reductant in the reaction, yielding dihydrofolate (DHF) as a by- product. This enzymatic reaction provides an intracellular de novo source of dTMP, an essential precursor for DNA biosynthesis. | 0.997 |
| folC | fhs | CH53_409 | CH53_3938 | Bifunctional FolC family protein; Functions in two distinct reactions of the de novo folate biosynthetic pathway. Catalyzes the addition of a glutamate residue to dihydropteroate (7,8-dihydropteroate or H2Pte) to form dihydrofolate (7,8-dihydrofolate monoglutamate or H2Pte-Glu). Also catalyzes successive additions of L-glutamate to tetrahydrofolate or 10- formyltetrahydrofolate or 5,10-methylenetetrahydrofolate, leading to folylpolyglutamate derivatives. | Formate--tetrahydrofolate ligase family protein; Belongs to the formate--tetrahydrofolate ligase family. | 0.748 |