| node1 | node2 | node1 accession | node2 accession | node1 annotation | node2 annotation | score |
| STM0613 | hypA | STM0613 | STM2854 | Putative hydrogenase protein; Similar to E. coli putative DMSO reductase anchor subunit (AAC74662.1); Blastp hit to AAC74662.1 (284 aa), 30% identity in aa 6 - 200. | Guanine-nucleotide binding protein in formate-hydrogenlyase system; Involved in the maturation of [NiFe] hydrogenases. Required for nickel insertion into the metal center of the hydrogenase. | 0.704 |
| STM0613 | hypB | STM0613 | STM2855 | Putative hydrogenase protein; Similar to E. coli putative DMSO reductase anchor subunit (AAC74662.1); Blastp hit to AAC74662.1 (284 aa), 30% identity in aa 6 - 200. | Hydrogenase-3 accessory protein; Assembly of metallocenter; similar to E. coli guanine-nucleotide binding protein, functions as nickel donor for large subunit of hydrogenase 3 (AAC75769.1); Blastp hit to AAC75769.1 (290 aa), 94% identity in aa 1 - 290. | 0.860 |
| STM0613 | nikR | STM0613 | STM3584 | Putative hydrogenase protein; Similar to E. coli putative DMSO reductase anchor subunit (AAC74662.1); Blastp hit to AAC74662.1 (284 aa), 30% identity in aa 6 - 200. | Nickel-responsive transcriptional regulator; Transcriptional repressor of the nikABCDE operon. Is active in the presence of excessive concentrations of intracellular nickel. | 0.717 |
| cbiK | nikR | STM2025 | STM3584 | Synthesis of vitamin B12 adenosyl cobalamide precursor; Catalyzes the insertion of Co(2+) into sirohydrochlorin as part of the anaerobic pathway to cobalamin biosynthesis; Belongs to the CbiK family. | Nickel-responsive transcriptional regulator; Transcriptional repressor of the nikABCDE operon. Is active in the presence of excessive concentrations of intracellular nickel. | 0.674 |
| cbiK | yohL | STM2025 | STM3023 | Synthesis of vitamin B12 adenosyl cobalamide precursor; Catalyzes the insertion of Co(2+) into sirohydrochlorin as part of the anaerobic pathway to cobalamin biosynthesis; Belongs to the CbiK family. | Putative cytoplasmic protein; Repressor of rcnA expression. Acts by binding specifically to the rcnA promoter in the absence of nickel and cobalt. In the presence of one of these metals, it has a weaker affinity for rcnA promoter (By similarity); Belongs to the FrmR/RcnR family. | 0.859 |
| cbiK | yohM | STM2025 | STM3024 | Synthesis of vitamin B12 adenosyl cobalamide precursor; Catalyzes the insertion of Co(2+) into sirohydrochlorin as part of the anaerobic pathway to cobalamin biosynthesis; Belongs to the CbiK family. | Putative inner membrane protein; Efflux system for nickel and cobalt. | 0.459 |
| cueR | mntR | STM0499 | STM0835 | Putative heavy metal transcriptional repressor (MerR family); Regulates the transcription of the copA and cuiD (cueO) genes. Detects cytoplasmic copper stress and activates transcription in response to increasing copper concentrations. | Putative Mn-dependent transcriptional regulator; In the presence of manganese, represses expression of mntH and mntS. Up-regulates expression of mntP (By similarity). Belongs to the DtxR/MntR family. | 0.814 |
| cueR | nikR | STM0499 | STM3584 | Putative heavy metal transcriptional repressor (MerR family); Regulates the transcription of the copA and cuiD (cueO) genes. Detects cytoplasmic copper stress and activates transcription in response to increasing copper concentrations. | Nickel-responsive transcriptional regulator; Transcriptional repressor of the nikABCDE operon. Is active in the presence of excessive concentrations of intracellular nickel. | 0.853 |
| cueR | yohL | STM0499 | STM3023 | Putative heavy metal transcriptional repressor (MerR family); Regulates the transcription of the copA and cuiD (cueO) genes. Detects cytoplasmic copper stress and activates transcription in response to increasing copper concentrations. | Putative cytoplasmic protein; Repressor of rcnA expression. Acts by binding specifically to the rcnA promoter in the absence of nickel and cobalt. In the presence of one of these metals, it has a weaker affinity for rcnA promoter (By similarity); Belongs to the FrmR/RcnR family. | 0.896 |
| cueR | zntR | STM0499 | STM3412 | Putative heavy metal transcriptional repressor (MerR family); Regulates the transcription of the copA and cuiD (cueO) genes. Detects cytoplasmic copper stress and activates transcription in response to increasing copper concentrations. | MerR family; similar to E. coli putative transcriptional regulator (AAC76317.1); Blastp hit to AAC76317.1 (141 aa), 92% identity in aa 1 - 141. | 0.414 |
| hypA | STM0613 | STM2854 | STM0613 | Guanine-nucleotide binding protein in formate-hydrogenlyase system; Involved in the maturation of [NiFe] hydrogenases. Required for nickel insertion into the metal center of the hydrogenase. | Putative hydrogenase protein; Similar to E. coli putative DMSO reductase anchor subunit (AAC74662.1); Blastp hit to AAC74662.1 (284 aa), 30% identity in aa 6 - 200. | 0.704 |
| hypA | hypB | STM2854 | STM2855 | Guanine-nucleotide binding protein in formate-hydrogenlyase system; Involved in the maturation of [NiFe] hydrogenases. Required for nickel insertion into the metal center of the hydrogenase. | Hydrogenase-3 accessory protein; Assembly of metallocenter; similar to E. coli guanine-nucleotide binding protein, functions as nickel donor for large subunit of hydrogenase 3 (AAC75769.1); Blastp hit to AAC75769.1 (290 aa), 94% identity in aa 1 - 290. | 0.999 |
| hypA | nikR | STM2854 | STM3584 | Guanine-nucleotide binding protein in formate-hydrogenlyase system; Involved in the maturation of [NiFe] hydrogenases. Required for nickel insertion into the metal center of the hydrogenase. | Nickel-responsive transcriptional regulator; Transcriptional repressor of the nikABCDE operon. Is active in the presence of excessive concentrations of intracellular nickel. | 0.607 |
| hypB | STM0613 | STM2855 | STM0613 | Hydrogenase-3 accessory protein; Assembly of metallocenter; similar to E. coli guanine-nucleotide binding protein, functions as nickel donor for large subunit of hydrogenase 3 (AAC75769.1); Blastp hit to AAC75769.1 (290 aa), 94% identity in aa 1 - 290. | Putative hydrogenase protein; Similar to E. coli putative DMSO reductase anchor subunit (AAC74662.1); Blastp hit to AAC74662.1 (284 aa), 30% identity in aa 6 - 200. | 0.860 |
| hypB | hypA | STM2855 | STM2854 | Hydrogenase-3 accessory protein; Assembly of metallocenter; similar to E. coli guanine-nucleotide binding protein, functions as nickel donor for large subunit of hydrogenase 3 (AAC75769.1); Blastp hit to AAC75769.1 (290 aa), 94% identity in aa 1 - 290. | Guanine-nucleotide binding protein in formate-hydrogenlyase system; Involved in the maturation of [NiFe] hydrogenases. Required for nickel insertion into the metal center of the hydrogenase. | 0.999 |
| hypB | nikR | STM2855 | STM3584 | Hydrogenase-3 accessory protein; Assembly of metallocenter; similar to E. coli guanine-nucleotide binding protein, functions as nickel donor for large subunit of hydrogenase 3 (AAC75769.1); Blastp hit to AAC75769.1 (290 aa), 94% identity in aa 1 - 290. | Nickel-responsive transcriptional regulator; Transcriptional repressor of the nikABCDE operon. Is active in the presence of excessive concentrations of intracellular nickel. | 0.757 |
| metJ | nikR | STM4099 | STM3584 | Transcriptional repressor of all met genes but metF; This regulatory protein, when combined with SAM (S- adenosylmethionine) represses the expression of the methionine regulon and of enzymes involved in SAM synthesis. It is also autoregulated (By similarity); Belongs to the MetJ family. | Nickel-responsive transcriptional regulator; Transcriptional repressor of the nikABCDE operon. Is active in the presence of excessive concentrations of intracellular nickel. | 0.673 |
| mntR | cueR | STM0835 | STM0499 | Putative Mn-dependent transcriptional regulator; In the presence of manganese, represses expression of mntH and mntS. Up-regulates expression of mntP (By similarity). Belongs to the DtxR/MntR family. | Putative heavy metal transcriptional repressor (MerR family); Regulates the transcription of the copA and cuiD (cueO) genes. Detects cytoplasmic copper stress and activates transcription in response to increasing copper concentrations. | 0.814 |
| mntR | nikR | STM0835 | STM3584 | Putative Mn-dependent transcriptional regulator; In the presence of manganese, represses expression of mntH and mntS. Up-regulates expression of mntP (By similarity). Belongs to the DtxR/MntR family. | Nickel-responsive transcriptional regulator; Transcriptional repressor of the nikABCDE operon. Is active in the presence of excessive concentrations of intracellular nickel. | 0.837 |
| mntR | yohL | STM0835 | STM3023 | Putative Mn-dependent transcriptional regulator; In the presence of manganese, represses expression of mntH and mntS. Up-regulates expression of mntP (By similarity). Belongs to the DtxR/MntR family. | Putative cytoplasmic protein; Repressor of rcnA expression. Acts by binding specifically to the rcnA promoter in the absence of nickel and cobalt. In the presence of one of these metals, it has a weaker affinity for rcnA promoter (By similarity); Belongs to the FrmR/RcnR family. | 0.862 |