| node1 | node2 | node1 accession | node2 accession | node1 annotation | node2 annotation | score |
| PSHAa0106 | ubiD | PSHAa0106 | PSHAa0105 | Conserved protein of unknown function, possibly a lipoprotein; Homologs of previously reported genes of unknown function. | 3-octaprenyl-4-hydroxybenzoate carboxylyase; Catalyzes the decarboxylation of 3-octaprenyl-4-hydroxy benzoate to 2-octaprenylphenol, an intermediate step in ubiquinone biosynthesis. | 0.492 |
| PSHAa2298 | ubiA | PSHAa2298 | PSHAa2310 | Putative aromatic acid decarboxylase; Function proposed based on presence of conserved amino acid motif, structural feature or limited homolgy; enzyme. | 4-hydroxybenzoate octaprenyltransferase; Catalyzes the prenylation of para-hydroxybenzoate (PHB) with an all-trans polyprenyl group. Mediates the second step in the final reaction sequence of ubiquinone-8 (UQ-8) biosynthesis, which is the condensation of the polyisoprenoid side chain with PHB, generating the first membrane-bound Q intermediate 3-octaprenyl-4-hydroxybenzoate. | 0.960 |
| PSHAa2298 | ubiD | PSHAa2298 | PSHAa0105 | Putative aromatic acid decarboxylase; Function proposed based on presence of conserved amino acid motif, structural feature or limited homolgy; enzyme. | 3-octaprenyl-4-hydroxybenzoate carboxylyase; Catalyzes the decarboxylation of 3-octaprenyl-4-hydroxy benzoate to 2-octaprenylphenol, an intermediate step in ubiquinone biosynthesis. | 0.994 |
| PSHAa2298 | visC | PSHAa2298 | PSHAa0564 | Putative aromatic acid decarboxylase; Function proposed based on presence of conserved amino acid motif, structural feature or limited homolgy; enzyme. | Putative monooxygenase, FAD/NAD(P)-binding domain; Function proposed based on presence of conserved amino acid motif, structural feature or limited homolgy; enzyme. | 0.909 |
| fre | ubiD | PSHAa0104 | PSHAa0105 | NAD(P)H-flavin reductase; Function of strongly homologous gene; enzyme. | 3-octaprenyl-4-hydroxybenzoate carboxylyase; Catalyzes the decarboxylation of 3-octaprenyl-4-hydroxy benzoate to 2-octaprenylphenol, an intermediate step in ubiquinone biosynthesis. | 0.879 |
| trkH | ubiD | PSHAa0015 | PSHAa0105 | Potassium transport protein, requires TrkE (Trk family); Low-affinity potassium transport system. Interacts with Trk system potassium uptake protein TrkA; Belongs to the TrkH potassium transport family. | 3-octaprenyl-4-hydroxybenzoate carboxylyase; Catalyzes the decarboxylation of 3-octaprenyl-4-hydroxy benzoate to 2-octaprenylphenol, an intermediate step in ubiquinone biosynthesis. | 0.891 |
| ubiA | PSHAa2298 | PSHAa2310 | PSHAa2298 | 4-hydroxybenzoate octaprenyltransferase; Catalyzes the prenylation of para-hydroxybenzoate (PHB) with an all-trans polyprenyl group. Mediates the second step in the final reaction sequence of ubiquinone-8 (UQ-8) biosynthesis, which is the condensation of the polyisoprenoid side chain with PHB, generating the first membrane-bound Q intermediate 3-octaprenyl-4-hydroxybenzoate. | Putative aromatic acid decarboxylase; Function proposed based on presence of conserved amino acid motif, structural feature or limited homolgy; enzyme. | 0.960 |
| ubiA | ubiC | PSHAa2310 | PSHAa2311 | 4-hydroxybenzoate octaprenyltransferase; Catalyzes the prenylation of para-hydroxybenzoate (PHB) with an all-trans polyprenyl group. Mediates the second step in the final reaction sequence of ubiquinone-8 (UQ-8) biosynthesis, which is the condensation of the polyisoprenoid side chain with PHB, generating the first membrane-bound Q intermediate 3-octaprenyl-4-hydroxybenzoate. | Putative chorismate pyruvate lyase UbiC; Removes the pyruvyl group from chorismate, with concomitant aromatization of the ring, to provide 4-hydroxybenzoate (4HB) for the ubiquinone pathway; Belongs to the UbiC family. | 0.991 |
| ubiA | ubiD | PSHAa2310 | PSHAa0105 | 4-hydroxybenzoate octaprenyltransferase; Catalyzes the prenylation of para-hydroxybenzoate (PHB) with an all-trans polyprenyl group. Mediates the second step in the final reaction sequence of ubiquinone-8 (UQ-8) biosynthesis, which is the condensation of the polyisoprenoid side chain with PHB, generating the first membrane-bound Q intermediate 3-octaprenyl-4-hydroxybenzoate. | 3-octaprenyl-4-hydroxybenzoate carboxylyase; Catalyzes the decarboxylation of 3-octaprenyl-4-hydroxy benzoate to 2-octaprenylphenol, an intermediate step in ubiquinone biosynthesis. | 0.973 |
| ubiA | ubiE | PSHAa2310 | PSHAa2926 | 4-hydroxybenzoate octaprenyltransferase; Catalyzes the prenylation of para-hydroxybenzoate (PHB) with an all-trans polyprenyl group. Mediates the second step in the final reaction sequence of ubiquinone-8 (UQ-8) biosynthesis, which is the condensation of the polyisoprenoid side chain with PHB, generating the first membrane-bound Q intermediate 3-octaprenyl-4-hydroxybenzoate. | Bifunctional protein [Includes: 2-octaprenyl-6-methoxy-1,4-benzoquinone methylase; Methyltransferase required for the conversion of demethylmenaquinol (DMKH2) to menaquinol (MKH2) and the conversion of 2-polyprenyl-6-methoxy-1,4-benzoquinol (DDMQH2) to 2-polyprenyl-3- methyl-6-methoxy-1,4-benzoquinol (DMQH2). | 0.742 |
| ubiA | visC | PSHAa2310 | PSHAa0564 | 4-hydroxybenzoate octaprenyltransferase; Catalyzes the prenylation of para-hydroxybenzoate (PHB) with an all-trans polyprenyl group. Mediates the second step in the final reaction sequence of ubiquinone-8 (UQ-8) biosynthesis, which is the condensation of the polyisoprenoid side chain with PHB, generating the first membrane-bound Q intermediate 3-octaprenyl-4-hydroxybenzoate. | Putative monooxygenase, FAD/NAD(P)-binding domain; Function proposed based on presence of conserved amino acid motif, structural feature or limited homolgy; enzyme. | 0.763 |
| ubiC | ubiA | PSHAa2311 | PSHAa2310 | Putative chorismate pyruvate lyase UbiC; Removes the pyruvyl group from chorismate, with concomitant aromatization of the ring, to provide 4-hydroxybenzoate (4HB) for the ubiquinone pathway; Belongs to the UbiC family. | 4-hydroxybenzoate octaprenyltransferase; Catalyzes the prenylation of para-hydroxybenzoate (PHB) with an all-trans polyprenyl group. Mediates the second step in the final reaction sequence of ubiquinone-8 (UQ-8) biosynthesis, which is the condensation of the polyisoprenoid side chain with PHB, generating the first membrane-bound Q intermediate 3-octaprenyl-4-hydroxybenzoate. | 0.991 |
| ubiC | ubiD | PSHAa2311 | PSHAa0105 | Putative chorismate pyruvate lyase UbiC; Removes the pyruvyl group from chorismate, with concomitant aromatization of the ring, to provide 4-hydroxybenzoate (4HB) for the ubiquinone pathway; Belongs to the UbiC family. | 3-octaprenyl-4-hydroxybenzoate carboxylyase; Catalyzes the decarboxylation of 3-octaprenyl-4-hydroxy benzoate to 2-octaprenylphenol, an intermediate step in ubiquinone biosynthesis. | 0.421 |
| ubiD | PSHAa0106 | PSHAa0105 | PSHAa0106 | 3-octaprenyl-4-hydroxybenzoate carboxylyase; Catalyzes the decarboxylation of 3-octaprenyl-4-hydroxy benzoate to 2-octaprenylphenol, an intermediate step in ubiquinone biosynthesis. | Conserved protein of unknown function, possibly a lipoprotein; Homologs of previously reported genes of unknown function. | 0.492 |
| ubiD | PSHAa2298 | PSHAa0105 | PSHAa2298 | 3-octaprenyl-4-hydroxybenzoate carboxylyase; Catalyzes the decarboxylation of 3-octaprenyl-4-hydroxy benzoate to 2-octaprenylphenol, an intermediate step in ubiquinone biosynthesis. | Putative aromatic acid decarboxylase; Function proposed based on presence of conserved amino acid motif, structural feature or limited homolgy; enzyme. | 0.994 |
| ubiD | fre | PSHAa0105 | PSHAa0104 | 3-octaprenyl-4-hydroxybenzoate carboxylyase; Catalyzes the decarboxylation of 3-octaprenyl-4-hydroxy benzoate to 2-octaprenylphenol, an intermediate step in ubiquinone biosynthesis. | NAD(P)H-flavin reductase; Function of strongly homologous gene; enzyme. | 0.879 |
| ubiD | trkH | PSHAa0105 | PSHAa0015 | 3-octaprenyl-4-hydroxybenzoate carboxylyase; Catalyzes the decarboxylation of 3-octaprenyl-4-hydroxy benzoate to 2-octaprenylphenol, an intermediate step in ubiquinone biosynthesis. | Potassium transport protein, requires TrkE (Trk family); Low-affinity potassium transport system. Interacts with Trk system potassium uptake protein TrkA; Belongs to the TrkH potassium transport family. | 0.891 |
| ubiD | ubiA | PSHAa0105 | PSHAa2310 | 3-octaprenyl-4-hydroxybenzoate carboxylyase; Catalyzes the decarboxylation of 3-octaprenyl-4-hydroxy benzoate to 2-octaprenylphenol, an intermediate step in ubiquinone biosynthesis. | 4-hydroxybenzoate octaprenyltransferase; Catalyzes the prenylation of para-hydroxybenzoate (PHB) with an all-trans polyprenyl group. Mediates the second step in the final reaction sequence of ubiquinone-8 (UQ-8) biosynthesis, which is the condensation of the polyisoprenoid side chain with PHB, generating the first membrane-bound Q intermediate 3-octaprenyl-4-hydroxybenzoate. | 0.973 |
| ubiD | ubiC | PSHAa0105 | PSHAa2311 | 3-octaprenyl-4-hydroxybenzoate carboxylyase; Catalyzes the decarboxylation of 3-octaprenyl-4-hydroxy benzoate to 2-octaprenylphenol, an intermediate step in ubiquinone biosynthesis. | Putative chorismate pyruvate lyase UbiC; Removes the pyruvyl group from chorismate, with concomitant aromatization of the ring, to provide 4-hydroxybenzoate (4HB) for the ubiquinone pathway; Belongs to the UbiC family. | 0.421 |
| ubiD | ubiE | PSHAa0105 | PSHAa2926 | 3-octaprenyl-4-hydroxybenzoate carboxylyase; Catalyzes the decarboxylation of 3-octaprenyl-4-hydroxy benzoate to 2-octaprenylphenol, an intermediate step in ubiquinone biosynthesis. | Bifunctional protein [Includes: 2-octaprenyl-6-methoxy-1,4-benzoquinone methylase; Methyltransferase required for the conversion of demethylmenaquinol (DMKH2) to menaquinol (MKH2) and the conversion of 2-polyprenyl-6-methoxy-1,4-benzoquinol (DDMQH2) to 2-polyprenyl-3- methyl-6-methoxy-1,4-benzoquinol (DMQH2). | 0.712 |