| node1 | node2 | node1 accession | node2 accession | node1 annotation | node2 annotation | score |
| PP_0512 | nrdR | PP_0512 | PP_0513 | Hypothetical protein; No homology to any previously reported sequences; Unknown function. | DNA-binding transcriptional repressor NrdR-Zn2+-ATP/dATP; Negatively regulates transcription of bacterial ribonucleotide reductase nrd genes and operons by binding to NrdR- boxes; Belongs to the NrdR family. | 0.627 |
| PP_0512 | ribAB-I | PP_0512 | PP_0516 | Hypothetical protein; No homology to any previously reported sequences; Unknown function. | 3,4-dihydroxy-2-butanone 4-phosphate synthase/GTP cyclohydrolase II; Catalyzes the conversion of D-ribulose 5-phosphate to formate and 3,4-dihydroxy-2-butanone 4-phosphate; Belongs to the DHBP synthase family. | 0.547 |
| PP_0512 | ribD | PP_0512 | PP_0514 | Hypothetical protein; No homology to any previously reported sequences; Unknown function. | Diaminohydroxyphosphoribosylaminopyrimidine deaminase; Converts 2,5-diamino-6-(ribosylamino)-4(3h)-pyrimidinone 5'- phosphate into 5-amino-6-(ribosylamino)-2,4(1h,3h)-pyrimidinedione 5'- phosphate; In the C-terminal section; belongs to the HTP reductase family. | 0.623 |
| PP_0512 | ribE | PP_0512 | PP_0515 | Hypothetical protein; No homology to any previously reported sequences; Unknown function. | Riboflavin synthase. | 0.481 |
| birA | nrdR | PP_0437 | PP_0513 | Bifunctional biotin-[acetyl-CoA-carboxylase] ligase/biotin operon repressor BirA; Acts both as a biotin--[acetyl-CoA-carboxylase] ligase and a biotin-operon repressor. In the presence of ATP, BirA activates biotin to form the BirA-biotinyl-5'-adenylate (BirA-bio-5'-AMP or holoBirA) complex. HoloBirA can either transfer the biotinyl moiety to the biotin carboxyl carrier protein (BCCP) subunit of acetyl-CoA carboxylase, or bind to the biotin operator site and inhibit transcription of the operon. | DNA-binding transcriptional repressor NrdR-Zn2+-ATP/dATP; Negatively regulates transcription of bacterial ribonucleotide reductase nrd genes and operons by binding to NrdR- boxes; Belongs to the NrdR family. | 0.648 |
| birA | ribAB-I | PP_0437 | PP_0516 | Bifunctional biotin-[acetyl-CoA-carboxylase] ligase/biotin operon repressor BirA; Acts both as a biotin--[acetyl-CoA-carboxylase] ligase and a biotin-operon repressor. In the presence of ATP, BirA activates biotin to form the BirA-biotinyl-5'-adenylate (BirA-bio-5'-AMP or holoBirA) complex. HoloBirA can either transfer the biotinyl moiety to the biotin carboxyl carrier protein (BCCP) subunit of acetyl-CoA carboxylase, or bind to the biotin operator site and inhibit transcription of the operon. | 3,4-dihydroxy-2-butanone 4-phosphate synthase/GTP cyclohydrolase II; Catalyzes the conversion of D-ribulose 5-phosphate to formate and 3,4-dihydroxy-2-butanone 4-phosphate; Belongs to the DHBP synthase family. | 0.530 |
| birA | ribD | PP_0437 | PP_0514 | Bifunctional biotin-[acetyl-CoA-carboxylase] ligase/biotin operon repressor BirA; Acts both as a biotin--[acetyl-CoA-carboxylase] ligase and a biotin-operon repressor. In the presence of ATP, BirA activates biotin to form the BirA-biotinyl-5'-adenylate (BirA-bio-5'-AMP or holoBirA) complex. HoloBirA can either transfer the biotinyl moiety to the biotin carboxyl carrier protein (BCCP) subunit of acetyl-CoA carboxylase, or bind to the biotin operator site and inhibit transcription of the operon. | Diaminohydroxyphosphoribosylaminopyrimidine deaminase; Converts 2,5-diamino-6-(ribosylamino)-4(3h)-pyrimidinone 5'- phosphate into 5-amino-6-(ribosylamino)-2,4(1h,3h)-pyrimidinedione 5'- phosphate; In the C-terminal section; belongs to the HTP reductase family. | 0.563 |
| birA | ribH | PP_0437 | PP_0517 | Bifunctional biotin-[acetyl-CoA-carboxylase] ligase/biotin operon repressor BirA; Acts both as a biotin--[acetyl-CoA-carboxylase] ligase and a biotin-operon repressor. In the presence of ATP, BirA activates biotin to form the BirA-biotinyl-5'-adenylate (BirA-bio-5'-AMP or holoBirA) complex. HoloBirA can either transfer the biotinyl moiety to the biotin carboxyl carrier protein (BCCP) subunit of acetyl-CoA carboxylase, or bind to the biotin operator site and inhibit transcription of the operon. | 6,7-dimethyl-8-ribityllumazine synthase; Catalyzes the formation of 6,7-dimethyl-8-ribityllumazine by condensation of 5-amino-6-(D-ribitylamino)uracil with 3,4-dihydroxy-2- butanone 4-phosphate. This is the penultimate step in the biosynthesis of riboflavin; Belongs to the DMRL synthase family. | 0.451 |
| cmk | nrdR | PP_1771 | PP_0513 | Cytidylate kinase. | DNA-binding transcriptional repressor NrdR-Zn2+-ATP/dATP; Negatively regulates transcription of bacterial ribonucleotide reductase nrd genes and operons by binding to NrdR- boxes; Belongs to the NrdR family. | 0.722 |
| cmk | nusB | PP_1771 | PP_0518 | Cytidylate kinase. | Transcription antitermination protein; Involved in transcription antitermination. Required for transcription of ribosomal RNA (rRNA) genes. Binds specifically to the boxA antiterminator sequence of the ribosomal RNA (rrn) operons. | 0.411 |
| ftsA | nrdR | PP_1341 | PP_0513 | Essential cell division protein FtsA; Cell division protein that is involved in the assembly of the Z ring. May serve as a membrane anchor for the Z ring. Belongs to the FtsA/MreB family. | DNA-binding transcriptional repressor NrdR-Zn2+-ATP/dATP; Negatively regulates transcription of bacterial ribonucleotide reductase nrd genes and operons by binding to NrdR- boxes; Belongs to the NrdR family. | 0.611 |
| ftsA | nusB | PP_1341 | PP_0518 | Essential cell division protein FtsA; Cell division protein that is involved in the assembly of the Z ring. May serve as a membrane anchor for the Z ring. Belongs to the FtsA/MreB family. | Transcription antitermination protein; Involved in transcription antitermination. Required for transcription of ribosomal RNA (rRNA) genes. Binds specifically to the boxA antiterminator sequence of the ribosomal RNA (rrn) operons. | 0.544 |
| nrdR | PP_0512 | PP_0513 | PP_0512 | DNA-binding transcriptional repressor NrdR-Zn2+-ATP/dATP; Negatively regulates transcription of bacterial ribonucleotide reductase nrd genes and operons by binding to NrdR- boxes; Belongs to the NrdR family. | Hypothetical protein; No homology to any previously reported sequences; Unknown function. | 0.627 |
| nrdR | birA | PP_0513 | PP_0437 | DNA-binding transcriptional repressor NrdR-Zn2+-ATP/dATP; Negatively regulates transcription of bacterial ribonucleotide reductase nrd genes and operons by binding to NrdR- boxes; Belongs to the NrdR family. | Bifunctional biotin-[acetyl-CoA-carboxylase] ligase/biotin operon repressor BirA; Acts both as a biotin--[acetyl-CoA-carboxylase] ligase and a biotin-operon repressor. In the presence of ATP, BirA activates biotin to form the BirA-biotinyl-5'-adenylate (BirA-bio-5'-AMP or holoBirA) complex. HoloBirA can either transfer the biotinyl moiety to the biotin carboxyl carrier protein (BCCP) subunit of acetyl-CoA carboxylase, or bind to the biotin operator site and inhibit transcription of the operon. | 0.648 |
| nrdR | cmk | PP_0513 | PP_1771 | DNA-binding transcriptional repressor NrdR-Zn2+-ATP/dATP; Negatively regulates transcription of bacterial ribonucleotide reductase nrd genes and operons by binding to NrdR- boxes; Belongs to the NrdR family. | Cytidylate kinase. | 0.722 |
| nrdR | ftsA | PP_0513 | PP_1341 | DNA-binding transcriptional repressor NrdR-Zn2+-ATP/dATP; Negatively regulates transcription of bacterial ribonucleotide reductase nrd genes and operons by binding to NrdR- boxes; Belongs to the NrdR family. | Essential cell division protein FtsA; Cell division protein that is involved in the assembly of the Z ring. May serve as a membrane anchor for the Z ring. Belongs to the FtsA/MreB family. | 0.611 |
| nrdR | nusB | PP_0513 | PP_0518 | DNA-binding transcriptional repressor NrdR-Zn2+-ATP/dATP; Negatively regulates transcription of bacterial ribonucleotide reductase nrd genes and operons by binding to NrdR- boxes; Belongs to the NrdR family. | Transcription antitermination protein; Involved in transcription antitermination. Required for transcription of ribosomal RNA (rRNA) genes. Binds specifically to the boxA antiterminator sequence of the ribosomal RNA (rrn) operons. | 0.882 |
| nrdR | ribAB-I | PP_0513 | PP_0516 | DNA-binding transcriptional repressor NrdR-Zn2+-ATP/dATP; Negatively regulates transcription of bacterial ribonucleotide reductase nrd genes and operons by binding to NrdR- boxes; Belongs to the NrdR family. | 3,4-dihydroxy-2-butanone 4-phosphate synthase/GTP cyclohydrolase II; Catalyzes the conversion of D-ribulose 5-phosphate to formate and 3,4-dihydroxy-2-butanone 4-phosphate; Belongs to the DHBP synthase family. | 0.818 |
| nrdR | ribD | PP_0513 | PP_0514 | DNA-binding transcriptional repressor NrdR-Zn2+-ATP/dATP; Negatively regulates transcription of bacterial ribonucleotide reductase nrd genes and operons by binding to NrdR- boxes; Belongs to the NrdR family. | Diaminohydroxyphosphoribosylaminopyrimidine deaminase; Converts 2,5-diamino-6-(ribosylamino)-4(3h)-pyrimidinone 5'- phosphate into 5-amino-6-(ribosylamino)-2,4(1h,3h)-pyrimidinedione 5'- phosphate; In the C-terminal section; belongs to the HTP reductase family. | 0.948 |
| nrdR | ribE | PP_0513 | PP_0515 | DNA-binding transcriptional repressor NrdR-Zn2+-ATP/dATP; Negatively regulates transcription of bacterial ribonucleotide reductase nrd genes and operons by binding to NrdR- boxes; Belongs to the NrdR family. | Riboflavin synthase. | 0.663 |