| node1 | node2 | node1 accession | node2 accession | node1 annotation | node2 annotation | score |
| PP_2177 | nicR | PP_2177 | PP_3946 | Putative transcriptional regulator; Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; putative regulator. | HTH-type transcriptional repressor NicR; Transcriptional repressor for the nicCDEFTP and nicXR operons, encoding the lower aerobic nicotinate degradation pathway. Acts under non-induced conditions: repression of the nicCDEFTP and nicXR operons becomes alleviated in presence of 6-hydroxynicotinate (6HNA). | 0.401 |
| map | nicR | PP_1590 | PP_3946 | Methionine aminopeptidase; Removes the N-terminal methionine from nascent proteins. The N-terminal methionine is often cleaved when the second residue in the primary sequence is small and uncharged (Met-Ala-, Cys, Gly, Pro, Ser, Thr, or Val). Requires deformylation of the N(alpha)-formylated initiator methionine before it can be hydrolyzed; Belongs to the peptidase M24A family. Methionine aminopeptidase type 1 subfamily. | HTH-type transcriptional repressor NicR; Transcriptional repressor for the nicCDEFTP and nicXR operons, encoding the lower aerobic nicotinate degradation pathway. Acts under non-induced conditions: repression of the nicCDEFTP and nicXR operons becomes alleviated in presence of 6-hydroxynicotinate (6HNA). | 0.429 |
| nicB | nicC | PP_3948 | PP_3944 | Nicotinate dehydrogenase subunit B; Subunit of the two-component enzyme NicAB that mediates nicotinate hydroxylation, the first step in the aerobic nicotinate degradation pathway. Mediates conversion of nicotinate into 6- hydroxynicotinate (6HNA). | 6-hydroxynicotinate 3-monooxygenase; Flavin-dependent monooxygenase (FMO) that catalyzes the decarboxylative hydroxylation of 6-hydroxynicotinic acid (6-HNA) to 2,5-dihydroxypyridine (2,5-DHP) with concomitant oxidation of NADH, a step in the aerobic nicotinate degradation pathway. Belongs to the 6-hydroxynicotinate 3-monooxygenase family. | 0.989 |
| nicB | nicD | PP_3948 | PP_3943 | Nicotinate dehydrogenase subunit B; Subunit of the two-component enzyme NicAB that mediates nicotinate hydroxylation, the first step in the aerobic nicotinate degradation pathway. Mediates conversion of nicotinate into 6- hydroxynicotinate (6HNA). | N-formylmaleamate deformylase; Deformylase that catalyzes the conversion of N-formylmaleamic acid to maleamate in the aerobic nicotinate degradation pathway. | 0.842 |
| nicB | nicE | PP_3948 | PP_3942 | Nicotinate dehydrogenase subunit B; Subunit of the two-component enzyme NicAB that mediates nicotinate hydroxylation, the first step in the aerobic nicotinate degradation pathway. Mediates conversion of nicotinate into 6- hydroxynicotinate (6HNA). | Maleate isomerase; Catalyzes cis-trans isomerization of the C2-C3 double bond in maleate to yield fumarate in the aerobic nicotinate degradation pathway. | 0.885 |
| nicB | nicF | PP_3948 | PP_3941 | Nicotinate dehydrogenase subunit B; Subunit of the two-component enzyme NicAB that mediates nicotinate hydroxylation, the first step in the aerobic nicotinate degradation pathway. Mediates conversion of nicotinate into 6- hydroxynicotinate (6HNA). | Maleamate amidohydrolase; Maleamate amidase that transforms maleamate into maleate and ammonia in the aerobic nicotinate degradation pathway. | 0.791 |
| nicB | nicR | PP_3948 | PP_3946 | Nicotinate dehydrogenase subunit B; Subunit of the two-component enzyme NicAB that mediates nicotinate hydroxylation, the first step in the aerobic nicotinate degradation pathway. Mediates conversion of nicotinate into 6- hydroxynicotinate (6HNA). | HTH-type transcriptional repressor NicR; Transcriptional repressor for the nicCDEFTP and nicXR operons, encoding the lower aerobic nicotinate degradation pathway. Acts under non-induced conditions: repression of the nicCDEFTP and nicXR operons becomes alleviated in presence of 6-hydroxynicotinate (6HNA). | 0.433 |
| nicB | nicS | PP_3948 | PP_3949 | Nicotinate dehydrogenase subunit B; Subunit of the two-component enzyme NicAB that mediates nicotinate hydroxylation, the first step in the aerobic nicotinate degradation pathway. Mediates conversion of nicotinate into 6- hydroxynicotinate (6HNA). | HTH-type transcriptional repressor NicS; Transcriptional repressor for the nicAB operon, encoding the upper aerobic nicotinate degradation pathway. Acts under non-induced conditions: repression of the nicAB operon becomes alleviated in presence of either nicotinate or 6-hydroxynicotinate (6HNA). | 0.838 |
| nicB | nicT | PP_3948 | PP_3940 | Nicotinate dehydrogenase subunit B; Subunit of the two-component enzyme NicAB that mediates nicotinate hydroxylation, the first step in the aerobic nicotinate degradation pathway. Mediates conversion of nicotinate into 6- hydroxynicotinate (6HNA). | Putative metabolite transport protein NicT; Probable transporter, possibly involved in the aerobic nicotinate degradation pathway. | 0.861 |
| nicB | nicX | PP_3948 | PP_3945 | Nicotinate dehydrogenase subunit B; Subunit of the two-component enzyme NicAB that mediates nicotinate hydroxylation, the first step in the aerobic nicotinate degradation pathway. Mediates conversion of nicotinate into 6- hydroxynicotinate (6HNA). | 2,5-dihydroxypyridine 5,6-dioxygenase; Catalyzes the dioxygenolytic ring cleavage of 2,5- dihydroxypyridine between carbons 5 and 6 generating N-formylmaleamate in the aerobic nicotinate degradation pathway. | 0.900 |
| nicC | nicB | PP_3944 | PP_3948 | 6-hydroxynicotinate 3-monooxygenase; Flavin-dependent monooxygenase (FMO) that catalyzes the decarboxylative hydroxylation of 6-hydroxynicotinic acid (6-HNA) to 2,5-dihydroxypyridine (2,5-DHP) with concomitant oxidation of NADH, a step in the aerobic nicotinate degradation pathway. Belongs to the 6-hydroxynicotinate 3-monooxygenase family. | Nicotinate dehydrogenase subunit B; Subunit of the two-component enzyme NicAB that mediates nicotinate hydroxylation, the first step in the aerobic nicotinate degradation pathway. Mediates conversion of nicotinate into 6- hydroxynicotinate (6HNA). | 0.989 |
| nicC | nicD | PP_3944 | PP_3943 | 6-hydroxynicotinate 3-monooxygenase; Flavin-dependent monooxygenase (FMO) that catalyzes the decarboxylative hydroxylation of 6-hydroxynicotinic acid (6-HNA) to 2,5-dihydroxypyridine (2,5-DHP) with concomitant oxidation of NADH, a step in the aerobic nicotinate degradation pathway. Belongs to the 6-hydroxynicotinate 3-monooxygenase family. | N-formylmaleamate deformylase; Deformylase that catalyzes the conversion of N-formylmaleamic acid to maleamate in the aerobic nicotinate degradation pathway. | 0.995 |
| nicC | nicE | PP_3944 | PP_3942 | 6-hydroxynicotinate 3-monooxygenase; Flavin-dependent monooxygenase (FMO) that catalyzes the decarboxylative hydroxylation of 6-hydroxynicotinic acid (6-HNA) to 2,5-dihydroxypyridine (2,5-DHP) with concomitant oxidation of NADH, a step in the aerobic nicotinate degradation pathway. Belongs to the 6-hydroxynicotinate 3-monooxygenase family. | Maleate isomerase; Catalyzes cis-trans isomerization of the C2-C3 double bond in maleate to yield fumarate in the aerobic nicotinate degradation pathway. | 0.996 |
| nicC | nicF | PP_3944 | PP_3941 | 6-hydroxynicotinate 3-monooxygenase; Flavin-dependent monooxygenase (FMO) that catalyzes the decarboxylative hydroxylation of 6-hydroxynicotinic acid (6-HNA) to 2,5-dihydroxypyridine (2,5-DHP) with concomitant oxidation of NADH, a step in the aerobic nicotinate degradation pathway. Belongs to the 6-hydroxynicotinate 3-monooxygenase family. | Maleamate amidohydrolase; Maleamate amidase that transforms maleamate into maleate and ammonia in the aerobic nicotinate degradation pathway. | 0.979 |
| nicC | nicR | PP_3944 | PP_3946 | 6-hydroxynicotinate 3-monooxygenase; Flavin-dependent monooxygenase (FMO) that catalyzes the decarboxylative hydroxylation of 6-hydroxynicotinic acid (6-HNA) to 2,5-dihydroxypyridine (2,5-DHP) with concomitant oxidation of NADH, a step in the aerobic nicotinate degradation pathway. Belongs to the 6-hydroxynicotinate 3-monooxygenase family. | HTH-type transcriptional repressor NicR; Transcriptional repressor for the nicCDEFTP and nicXR operons, encoding the lower aerobic nicotinate degradation pathway. Acts under non-induced conditions: repression of the nicCDEFTP and nicXR operons becomes alleviated in presence of 6-hydroxynicotinate (6HNA). | 0.965 |
| nicC | nicS | PP_3944 | PP_3949 | 6-hydroxynicotinate 3-monooxygenase; Flavin-dependent monooxygenase (FMO) that catalyzes the decarboxylative hydroxylation of 6-hydroxynicotinic acid (6-HNA) to 2,5-dihydroxypyridine (2,5-DHP) with concomitant oxidation of NADH, a step in the aerobic nicotinate degradation pathway. Belongs to the 6-hydroxynicotinate 3-monooxygenase family. | HTH-type transcriptional repressor NicS; Transcriptional repressor for the nicAB operon, encoding the upper aerobic nicotinate degradation pathway. Acts under non-induced conditions: repression of the nicAB operon becomes alleviated in presence of either nicotinate or 6-hydroxynicotinate (6HNA). | 0.815 |
| nicC | nicT | PP_3944 | PP_3940 | 6-hydroxynicotinate 3-monooxygenase; Flavin-dependent monooxygenase (FMO) that catalyzes the decarboxylative hydroxylation of 6-hydroxynicotinic acid (6-HNA) to 2,5-dihydroxypyridine (2,5-DHP) with concomitant oxidation of NADH, a step in the aerobic nicotinate degradation pathway. Belongs to the 6-hydroxynicotinate 3-monooxygenase family. | Putative metabolite transport protein NicT; Probable transporter, possibly involved in the aerobic nicotinate degradation pathway. | 0.915 |
| nicC | nicX | PP_3944 | PP_3945 | 6-hydroxynicotinate 3-monooxygenase; Flavin-dependent monooxygenase (FMO) that catalyzes the decarboxylative hydroxylation of 6-hydroxynicotinic acid (6-HNA) to 2,5-dihydroxypyridine (2,5-DHP) with concomitant oxidation of NADH, a step in the aerobic nicotinate degradation pathway. Belongs to the 6-hydroxynicotinate 3-monooxygenase family. | 2,5-dihydroxypyridine 5,6-dioxygenase; Catalyzes the dioxygenolytic ring cleavage of 2,5- dihydroxypyridine between carbons 5 and 6 generating N-formylmaleamate in the aerobic nicotinate degradation pathway. | 0.999 |
| nicD | nicB | PP_3943 | PP_3948 | N-formylmaleamate deformylase; Deformylase that catalyzes the conversion of N-formylmaleamic acid to maleamate in the aerobic nicotinate degradation pathway. | Nicotinate dehydrogenase subunit B; Subunit of the two-component enzyme NicAB that mediates nicotinate hydroxylation, the first step in the aerobic nicotinate degradation pathway. Mediates conversion of nicotinate into 6- hydroxynicotinate (6HNA). | 0.842 |
| nicD | nicC | PP_3943 | PP_3944 | N-formylmaleamate deformylase; Deformylase that catalyzes the conversion of N-formylmaleamic acid to maleamate in the aerobic nicotinate degradation pathway. | 6-hydroxynicotinate 3-monooxygenase; Flavin-dependent monooxygenase (FMO) that catalyzes the decarboxylative hydroxylation of 6-hydroxynicotinic acid (6-HNA) to 2,5-dihydroxypyridine (2,5-DHP) with concomitant oxidation of NADH, a step in the aerobic nicotinate degradation pathway. Belongs to the 6-hydroxynicotinate 3-monooxygenase family. | 0.995 |