| node1 | node2 | node1 accession | node2 accession | node1 annotation | node2 annotation | score |
| carB | pbuX | spr1153 | spr1663 | Carbamoylphosphate synthase (ammonia), heavy subunit. | Nucleobase:cation symporter for xanthine. | 0.596 |
| carB | purL | spr1153 | spr0046 | Carbamoylphosphate synthase (ammonia), heavy subunit. | Phosphoribosylformylglycinamide synthetase. | 0.826 |
| carB | pyrB | spr1153 | spr1155 | Carbamoylphosphate synthase (ammonia), heavy subunit. | Aspartate carbamoyltransferase; Belongs to the aspartate/ornithine carbamoyltransferase superfamily. ATCase family. | 0.999 |
| carB | pyrE | spr1153 | spr0614 | Carbamoylphosphate synthase (ammonia), heavy subunit. | 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). | 0.987 |
| carB | pyrF | spr1153 | spr0613 | Carbamoylphosphate synthase (ammonia), heavy subunit. | Orotidine-5'-decarboxylase; Catalyzes the decarboxylation of orotidine 5'-monophosphate (OMP) to uridine 5'-monophosphate (UMP); Belongs to the OMP decarboxylase family. Type 1 subfamily. | 0.984 |
| carB | pyrR | spr1153 | spr1156 | Carbamoylphosphate synthase (ammonia), heavy subunit. | Transcriptional attenuation of the pyrimidine operon / uracil phosphoribosyltransferase activity; Regulates transcriptional attenuation of the pyrimidine nucleotide (pyr) operon by binding in a uridine-dependent manner to specific sites on pyr mRNA. This disrupts an antiterminator hairpin in the RNA and favors formation of a downstream transcription terminator, leading to a reduced expression of downstream genes. Belongs to the purine/pyrimidine phosphoribosyltransferase family. PyrR subfamily. | 0.991 |
| comEB | comFC | spr0654 | spr2012 | dCMP deaminase; Putative late competence operon required for DNA binding and uptake. | Involved in transformation (competence for DNA uptake). | 0.834 |
| comEB | pbuX | spr0654 | spr1663 | dCMP deaminase; Putative late competence operon required for DNA binding and uptake. | Nucleobase:cation symporter for xanthine. | 0.621 |
| comFC | comEB | spr2012 | spr0654 | Involved in transformation (competence for DNA uptake). | dCMP deaminase; Putative late competence operon required for DNA binding and uptake. | 0.834 |
| comFC | pbuX | spr2012 | spr1663 | Involved in transformation (competence for DNA uptake). | Nucleobase:cation symporter for xanthine. | 0.616 |
| comFC | xpt | spr2012 | spr1662 | Involved in transformation (competence for DNA uptake). | Xanthine phosphoribosyltransferase; Converts the preformed base xanthine, a product of nucleic acid breakdown, to xanthosine 5'-monophosphate (XMP), so it can be reused for RNA or DNA synthesis. | 0.520 |
| pbuX | carB | spr1663 | spr1153 | Nucleobase:cation symporter for xanthine. | Carbamoylphosphate synthase (ammonia), heavy subunit. | 0.596 |
| pbuX | comEB | spr1663 | spr0654 | Nucleobase:cation symporter for xanthine. | dCMP deaminase; Putative late competence operon required for DNA binding and uptake. | 0.621 |
| pbuX | comFC | spr1663 | spr2012 | Nucleobase:cation symporter for xanthine. | Involved in transformation (competence for DNA uptake). | 0.616 |
| pbuX | purL | spr1663 | spr0046 | Nucleobase:cation symporter for xanthine. | Phosphoribosylformylglycinamide synthetase. | 0.609 |
| pbuX | pyrB | spr1663 | spr1155 | Nucleobase:cation symporter for xanthine. | Aspartate carbamoyltransferase; Belongs to the aspartate/ornithine carbamoyltransferase superfamily. ATCase family. | 0.623 |
| pbuX | pyrE | spr1663 | spr0614 | Nucleobase:cation symporter for xanthine. | 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). | 0.596 |
| pbuX | pyrF | spr1663 | spr0613 | Nucleobase:cation symporter for xanthine. | Orotidine-5'-decarboxylase; Catalyzes the decarboxylation of orotidine 5'-monophosphate (OMP) to uridine 5'-monophosphate (UMP); Belongs to the OMP decarboxylase family. Type 1 subfamily. | 0.599 |
| pbuX | pyrR | spr1663 | spr1156 | Nucleobase:cation symporter for xanthine. | Transcriptional attenuation of the pyrimidine operon / uracil phosphoribosyltransferase activity; Regulates transcriptional attenuation of the pyrimidine nucleotide (pyr) operon by binding in a uridine-dependent manner to specific sites on pyr mRNA. This disrupts an antiterminator hairpin in the RNA and favors formation of a downstream transcription terminator, leading to a reduced expression of downstream genes. Belongs to the purine/pyrimidine phosphoribosyltransferase family. PyrR subfamily. | 0.606 |
| pbuX | spr0264 | spr1663 | spr0264 | Nucleobase:cation symporter for xanthine. | Conserved hypothetical protein. | 0.669 |