| node1 | node2 | node1 accession | node2 accession | node1 annotation | node2 annotation | score |
| STM0050 | rihC | STM0050 | STM0051 | Putative nitrite reductase. | Putative purine nucleoside hydrolase; Hydrolyzes both purine and pyrimidine ribonucleosides with a broad-substrate specificity. | 0.773 |
| STM0572 | rihC | STM0572 | STM0051 | Putative phosphosugar isomerases; Similar to E. coli putative transport protein (AAC76396.1); Blastp hit to AAC76396.1 (347 aa), 27% identity in aa 42 - 299. | Putative purine nucleoside hydrolase; Hydrolyzes both purine and pyrimidine ribonucleosides with a broad-substrate specificity. | 0.898 |
| STM4540 | rihC | STM4540 | STM0051 | Putative glucosamine-fructose-6-phosphate aminotransferase; Similar to E. coli putative transport protein (AAC76396.1); Blastp hit to AAC76396.1 (347 aa), 26% identity in aa 42 - 341. | Putative purine nucleoside hydrolase; Hydrolyzes both purine and pyrimidine ribonucleosides with a broad-substrate specificity. | 0.899 |
| citX | rihC | STM0620 | STM0051 | Putative cytoplasmic protein; Similar to E. coli orf, hypothetical protein (AAC73715.1); Blastp hit to AAC73715.1 (183 aa), 75% identity in aa 1 - 179. | Putative purine nucleoside hydrolase; Hydrolyzes both purine and pyrimidine ribonucleosides with a broad-substrate specificity. | 0.766 |
| rbsK | rihC | STM3885 | STM0051 | Ribokinase; Catalyzes the phosphorylation of ribose at O-5 in a reaction requiring ATP and magnesium. The resulting D-ribose-5-phosphate can then be used either for sythesis of nucleotides, histidine, and tryptophan, or as a component of the pentose phosphate pathway. | Putative purine nucleoside hydrolase; Hydrolyzes both purine and pyrimidine ribonucleosides with a broad-substrate specificity. | 0.740 |
| rbsK-2 | rihC | STM3547 | STM0051 | Putative transcriptional regulator of sugar metabolism; Catalyzes the phosphorylation of ribose at O-5 in a reaction requiring ATP and magnesium. The resulting D-ribose-5-phosphate can then be used either for sythesis of nucleotides, histidine, and tryptophan, or as a component of the pentose phosphate pathway. | Putative purine nucleoside hydrolase; Hydrolyzes both purine and pyrimidine ribonucleosides with a broad-substrate specificity. | 0.729 |
| rihC | STM0050 | STM0051 | STM0050 | Putative purine nucleoside hydrolase; Hydrolyzes both purine and pyrimidine ribonucleosides with a broad-substrate specificity. | Putative nitrite reductase. | 0.773 |
| rihC | STM0572 | STM0051 | STM0572 | Putative purine nucleoside hydrolase; Hydrolyzes both purine and pyrimidine ribonucleosides with a broad-substrate specificity. | Putative phosphosugar isomerases; Similar to E. coli putative transport protein (AAC76396.1); Blastp hit to AAC76396.1 (347 aa), 27% identity in aa 42 - 299. | 0.898 |
| rihC | STM4540 | STM0051 | STM4540 | Putative purine nucleoside hydrolase; Hydrolyzes both purine and pyrimidine ribonucleosides with a broad-substrate specificity. | Putative glucosamine-fructose-6-phosphate aminotransferase; Similar to E. coli putative transport protein (AAC76396.1); Blastp hit to AAC76396.1 (347 aa), 26% identity in aa 42 - 341. | 0.899 |
| rihC | citX | STM0051 | STM0620 | Putative purine nucleoside hydrolase; Hydrolyzes both purine and pyrimidine ribonucleosides with a broad-substrate specificity. | Putative cytoplasmic protein; Similar to E. coli orf, hypothetical protein (AAC73715.1); Blastp hit to AAC73715.1 (183 aa), 75% identity in aa 1 - 179. | 0.766 |
| rihC | rbsK | STM0051 | STM3885 | Putative purine nucleoside hydrolase; Hydrolyzes both purine and pyrimidine ribonucleosides with a broad-substrate specificity. | Ribokinase; Catalyzes the phosphorylation of ribose at O-5 in a reaction requiring ATP and magnesium. The resulting D-ribose-5-phosphate can then be used either for sythesis of nucleotides, histidine, and tryptophan, or as a component of the pentose phosphate pathway. | 0.740 |
| rihC | rbsK-2 | STM0051 | STM3547 | Putative purine nucleoside hydrolase; Hydrolyzes both purine and pyrimidine ribonucleosides with a broad-substrate specificity. | Putative transcriptional regulator of sugar metabolism; Catalyzes the phosphorylation of ribose at O-5 in a reaction requiring ATP and magnesium. The resulting D-ribose-5-phosphate can then be used either for sythesis of nucleotides, histidine, and tryptophan, or as a component of the pentose phosphate pathway. | 0.729 |
| rihC | xapA | STM0051 | STM2422 | Putative purine nucleoside hydrolase; Hydrolyzes both purine and pyrimidine ribonucleosides with a broad-substrate specificity. | Xanthosine phosphorylase; The purine nucleoside phosphorylases catalyze the phosphorolytic breakdown of the N-glycosidic bond in the beta- (deoxy)ribonucleoside molecules, with the formation of the corresponding free purine bases and pentose-1-phosphate. | 0.917 |
| rihC | yaaU | STM0051 | STM0079 | Putative purine nucleoside hydrolase; Hydrolyzes both purine and pyrimidine ribonucleosides with a broad-substrate specificity. | Similar to E. coli putative transport protein (AAC73156.1); Blastp hit to AAC73156.1 (443 aa), 86% identity in aa 1 - 439. | 0.899 |
| rihC | yjgQ | STM0051 | STM4480 | Putative purine nucleoside hydrolase; Hydrolyzes both purine and pyrimidine ribonucleosides with a broad-substrate specificity. | Putative permease; Similar to E. coli orf, hypothetical protein (AAC77219.1); Blastp hit to AAC77219.1 (361 aa), 97% identity in aa 2 - 361. | 0.891 |
| rihC | yjjX | STM0051 | STM4584 | Putative purine nucleoside hydrolase; Hydrolyzes both purine and pyrimidine ribonucleosides with a broad-substrate specificity. | Putative cytoplasmic protein; Phosphatase that hydrolyzes non-canonical purine nucleotides such as XTP and ITP to their respective diphosphate derivatives. Probably excludes non-canonical purines from DNA/RNA precursor pool, thus preventing their incorporation into DNA/RNA and avoiding chromosomal lesions. | 0.899 |
| xapA | rihC | STM2422 | STM0051 | Xanthosine phosphorylase; The purine nucleoside phosphorylases catalyze the phosphorolytic breakdown of the N-glycosidic bond in the beta- (deoxy)ribonucleoside molecules, with the formation of the corresponding free purine bases and pentose-1-phosphate. | Putative purine nucleoside hydrolase; Hydrolyzes both purine and pyrimidine ribonucleosides with a broad-substrate specificity. | 0.917 |
| yaaU | rihC | STM0079 | STM0051 | Similar to E. coli putative transport protein (AAC73156.1); Blastp hit to AAC73156.1 (443 aa), 86% identity in aa 1 - 439. | Putative purine nucleoside hydrolase; Hydrolyzes both purine and pyrimidine ribonucleosides with a broad-substrate specificity. | 0.899 |
| yaaU | yjgQ | STM0079 | STM4480 | Similar to E. coli putative transport protein (AAC73156.1); Blastp hit to AAC73156.1 (443 aa), 86% identity in aa 1 - 439. | Putative permease; Similar to E. coli orf, hypothetical protein (AAC77219.1); Blastp hit to AAC77219.1 (361 aa), 97% identity in aa 2 - 361. | 0.579 |
| yaaU | yjjX | STM0079 | STM4584 | Similar to E. coli putative transport protein (AAC73156.1); Blastp hit to AAC73156.1 (443 aa), 86% identity in aa 1 - 439. | Putative cytoplasmic protein; Phosphatase that hydrolyzes non-canonical purine nucleotides such as XTP and ITP to their respective diphosphate derivatives. Probably excludes non-canonical purines from DNA/RNA precursor pool, thus preventing their incorporation into DNA/RNA and avoiding chromosomal lesions. | 0.940 |