| node1 | node2 | node1 accession | node2 accession | node1 annotation | node2 annotation | score |
| pyrB | pyrC | CBO3241 | CBO3239 | Aspartate carbamoyltransferase catalytic chain; Belongs to the aspartate/ornithine carbamoyltransferase superfamily. ATCase family. | Dihydroorotase; Catalyzes the reversible cyclization of carbamoyl aspartate to dihydroorotate; Belongs to the metallo-dependent hydrolases superfamily. DHOase family. Class I DHOase subfamily. | 0.999 |
| pyrB | pyrD | CBO3241 | CBO3236 | Aspartate carbamoyltransferase catalytic chain; Belongs to the aspartate/ornithine carbamoyltransferase superfamily. ATCase family. | Dihydroorotate dehydrogenase, catalytic subunit; Catalyzes the conversion of dihydroorotate to orotate. | 0.986 |
| pyrB | pyrE | CBO3241 | CBO3235 | Aspartate carbamoyltransferase catalytic chain; Belongs to the aspartate/ornithine carbamoyltransferase superfamily. ATCase family. | Orotate phosphoribosyltransferase; Catalyzes the transfer of a ribosyl phosphate group from 5- phosphoribose 1-diphosphate to orotate, leading to the formation of orotidine monophosphate (OMP). | 0.980 |
| pyrB | pyrF | CBO3241 | CBO3238 | Aspartate carbamoyltransferase catalytic chain; Belongs to the aspartate/ornithine carbamoyltransferase superfamily. ATCase family. | Orotidine 5'-phosphate decarboxylase; Belongs to the OMP decarboxylase family. Type 2 subfamily. | 0.989 |
| pyrB | pyrH | CBO3241 | CBO2433 | Aspartate carbamoyltransferase catalytic chain; Belongs to the aspartate/ornithine carbamoyltransferase superfamily. ATCase family. | Uridylate kinase; Catalyzes the reversible phosphorylation of UMP to UDP. | 0.503 |
| pyrB | pyrI | CBO3241 | CBO3240 | Aspartate carbamoyltransferase catalytic chain; Belongs to the aspartate/ornithine carbamoyltransferase superfamily. ATCase family. | Aspartate carbamoyltransferase regulatory chain; Involved in allosteric regulation of aspartate carbamoyltransferase. | 0.999 |
| pyrB | pyrK | CBO3241 | CBO3237 | Aspartate carbamoyltransferase catalytic chain; Belongs to the aspartate/ornithine carbamoyltransferase superfamily. ATCase family. | Dihydroorotate dehydrogenase electron transfer subunit; Responsible for channeling the electrons from the oxidation of dihydroorotate from the FMN redox center in the PyrD type B subunit to the ultimate electron acceptor NAD(+). | 0.953 |
| pyrB | pyrR | CBO3241 | CBO1478 | Aspartate carbamoyltransferase catalytic chain; Belongs to the aspartate/ornithine carbamoyltransferase superfamily. ATCase family. | Putative pyrimidine operon regulatory protein; Also displays a weak uracil phosphoribosyltransferase activity which is not physiologically significant; Belongs to the purine/pyrimidine phosphoribosyltransferase family. PyrR subfamily. | 0.923 |
| pyrB | pyrR-2 | CBO3241 | CBO2821 | Aspartate carbamoyltransferase catalytic chain; Belongs to the aspartate/ornithine carbamoyltransferase superfamily. ATCase family. | Pyrimidine operon regulatory protein; Also displays a weak uracil phosphoribosyltransferase activity which is not physiologically significant; Belongs to the purine/pyrimidine phosphoribosyltransferase family. PyrR subfamily. | 0.974 |
| pyrB | upp | CBO3241 | CBO0145 | Aspartate carbamoyltransferase catalytic chain; Belongs to the aspartate/ornithine carbamoyltransferase superfamily. ATCase family. | Uracil phosphoribosyltransferase; Catalyzes the conversion of uracil and 5-phospho-alpha-D- ribose 1-diphosphate (PRPP) to UMP and diphosphate. | 0.698 |
| pyrC | pyrB | CBO3239 | CBO3241 | Dihydroorotase; Catalyzes the reversible cyclization of carbamoyl aspartate to dihydroorotate; Belongs to the metallo-dependent hydrolases superfamily. DHOase family. Class I DHOase subfamily. | Aspartate carbamoyltransferase catalytic chain; Belongs to the aspartate/ornithine carbamoyltransferase superfamily. ATCase family. | 0.999 |
| pyrC | pyrD | CBO3239 | CBO3236 | Dihydroorotase; Catalyzes the reversible cyclization of carbamoyl aspartate to dihydroorotate; Belongs to the metallo-dependent hydrolases superfamily. DHOase family. Class I DHOase subfamily. | Dihydroorotate dehydrogenase, catalytic subunit; Catalyzes the conversion of dihydroorotate to orotate. | 0.999 |
| pyrC | pyrE | CBO3239 | CBO3235 | Dihydroorotase; Catalyzes the reversible cyclization of carbamoyl aspartate to dihydroorotate; Belongs to the metallo-dependent hydrolases superfamily. DHOase family. Class I DHOase subfamily. | Orotate phosphoribosyltransferase; Catalyzes the transfer of a ribosyl phosphate group from 5- phosphoribose 1-diphosphate to orotate, leading to the formation of orotidine monophosphate (OMP). | 0.984 |
| pyrC | pyrF | CBO3239 | CBO3238 | Dihydroorotase; Catalyzes the reversible cyclization of carbamoyl aspartate to dihydroorotate; Belongs to the metallo-dependent hydrolases superfamily. DHOase family. Class I DHOase subfamily. | Orotidine 5'-phosphate decarboxylase; Belongs to the OMP decarboxylase family. Type 2 subfamily. | 0.966 |
| pyrC | pyrH | CBO3239 | CBO2433 | Dihydroorotase; Catalyzes the reversible cyclization of carbamoyl aspartate to dihydroorotate; Belongs to the metallo-dependent hydrolases superfamily. DHOase family. Class I DHOase subfamily. | Uridylate kinase; Catalyzes the reversible phosphorylation of UMP to UDP. | 0.527 |
| pyrC | pyrI | CBO3239 | CBO3240 | Dihydroorotase; Catalyzes the reversible cyclization of carbamoyl aspartate to dihydroorotate; Belongs to the metallo-dependent hydrolases superfamily. DHOase family. Class I DHOase subfamily. | Aspartate carbamoyltransferase regulatory chain; Involved in allosteric regulation of aspartate carbamoyltransferase. | 0.981 |
| pyrC | pyrK | CBO3239 | CBO3237 | Dihydroorotase; Catalyzes the reversible cyclization of carbamoyl aspartate to dihydroorotate; Belongs to the metallo-dependent hydrolases superfamily. DHOase family. Class I DHOase subfamily. | Dihydroorotate dehydrogenase electron transfer subunit; Responsible for channeling the electrons from the oxidation of dihydroorotate from the FMN redox center in the PyrD type B subunit to the ultimate electron acceptor NAD(+). | 0.996 |
| pyrC | pyrR | CBO3239 | CBO1478 | Dihydroorotase; Catalyzes the reversible cyclization of carbamoyl aspartate to dihydroorotate; Belongs to the metallo-dependent hydrolases superfamily. DHOase family. Class I DHOase subfamily. | Putative pyrimidine operon regulatory protein; Also displays a weak uracil phosphoribosyltransferase activity which is not physiologically significant; Belongs to the purine/pyrimidine phosphoribosyltransferase family. PyrR subfamily. | 0.851 |
| pyrC | pyrR-2 | CBO3239 | CBO2821 | Dihydroorotase; Catalyzes the reversible cyclization of carbamoyl aspartate to dihydroorotate; Belongs to the metallo-dependent hydrolases superfamily. DHOase family. Class I DHOase subfamily. | Pyrimidine operon regulatory protein; Also displays a weak uracil phosphoribosyltransferase activity which is not physiologically significant; Belongs to the purine/pyrimidine phosphoribosyltransferase family. PyrR subfamily. | 0.849 |
| pyrD | pyrB | CBO3236 | CBO3241 | Dihydroorotate dehydrogenase, catalytic subunit; Catalyzes the conversion of dihydroorotate to orotate. | Aspartate carbamoyltransferase catalytic chain; Belongs to the aspartate/ornithine carbamoyltransferase superfamily. ATCase family. | 0.986 |