| node1 | node2 | node1 accession | node2 accession | node1 annotation | node2 annotation | score |
| Atu1064 | hemH | Atu1064 | Atu3771 | ABC transporter, nucleotide binding/ATPase protein. | Ferrochelatase; Catalyzes the ferrous insertion into protoporphyrin IX. Belongs to the ferrochelatase family. | 0.703 |
| Atu2129 | bfr | Atu2129 | Atu2771 | Conserved hypothetical protein. | Bacterioferritin; Iron-storage protein, whose ferroxidase center binds Fe(2+) ions, oxidizes them by dioxygen to Fe(3+), and participates in the subsequent Fe(3+) oxide mineral core formation within the central cavity of the protein complex; Belongs to the bacterioferritin family. | 0.900 |
| Atu2129 | ctaB | Atu2129 | Atu0769 | Conserved hypothetical protein. | Protoheme IX farnesyltransferase; Converts heme B (protoheme IX) to heme O by substitution of the vinyl group on carbon 2 of heme B porphyrin ring with a hydroxyethyl farnesyl side group. | 0.900 |
| Atu2129 | hemH | Atu2129 | Atu3771 | Conserved hypothetical protein. | Ferrochelatase; Catalyzes the ferrous insertion into protoporphyrin IX. Belongs to the ferrochelatase family. | 0.907 |
| Atu2129 | hemO | Atu2129 | Atu2502 | Conserved hypothetical protein. | Heme oxygenase. | 0.900 |
| Atu2834 | hemE | Atu2834 | Atu2835 | Conserved hypothetical protein. | Uroporphyrinogen decarboxylase; Catalyzes the decarboxylation of four acetate groups of uroporphyrinogen-III to yield coproporphyrinogen-III. | 0.926 |
| Atu2834 | hemF | Atu2834 | Atu2247 | Conserved hypothetical protein. | Coproporphyrinogen III oxidase; Involved in the heme biosynthesis. Catalyzes the aerobic oxidative decarboxylation of propionate groups of rings A and B of coproporphyrinogen-III to yield the vinyl groups in protoporphyrinogen- IX. | 0.952 |
| Atu2834 | hemH | Atu2834 | Atu3771 | Conserved hypothetical protein. | Ferrochelatase; Catalyzes the ferrous insertion into protoporphyrin IX. Belongs to the ferrochelatase family. | 0.950 |
| Atu3772 | Atu3773 | Atu3772 | Atu3773 | Conserved hypothetical protein. | Conserved hypothetical protein. | 0.992 |
| Atu3772 | hemH | Atu3772 | Atu3771 | Conserved hypothetical protein. | Ferrochelatase; Catalyzes the ferrous insertion into protoporphyrin IX. Belongs to the ferrochelatase family. | 0.819 |
| Atu3773 | Atu3772 | Atu3773 | Atu3772 | Conserved hypothetical protein. | Conserved hypothetical protein. | 0.992 |
| Atu3773 | hemH | Atu3773 | Atu3771 | Conserved hypothetical protein. | Ferrochelatase; Catalyzes the ferrous insertion into protoporphyrin IX. Belongs to the ferrochelatase family. | 0.819 |
| bfr | Atu2129 | Atu2771 | Atu2129 | Bacterioferritin; Iron-storage protein, whose ferroxidase center binds Fe(2+) ions, oxidizes them by dioxygen to Fe(3+), and participates in the subsequent Fe(3+) oxide mineral core formation within the central cavity of the protein complex; Belongs to the bacterioferritin family. | Conserved hypothetical protein. | 0.900 |
| bfr | hemH | Atu2771 | Atu3771 | Bacterioferritin; Iron-storage protein, whose ferroxidase center binds Fe(2+) ions, oxidizes them by dioxygen to Fe(3+), and participates in the subsequent Fe(3+) oxide mineral core formation within the central cavity of the protein complex; Belongs to the bacterioferritin family. | Ferrochelatase; Catalyzes the ferrous insertion into protoporphyrin IX. Belongs to the ferrochelatase family. | 0.919 |
| bfr | hemO | Atu2771 | Atu2502 | Bacterioferritin; Iron-storage protein, whose ferroxidase center binds Fe(2+) ions, oxidizes them by dioxygen to Fe(3+), and participates in the subsequent Fe(3+) oxide mineral core formation within the central cavity of the protein complex; Belongs to the bacterioferritin family. | Heme oxygenase. | 0.903 |
| ctaB | Atu2129 | Atu0769 | Atu2129 | Protoheme IX farnesyltransferase; Converts heme B (protoheme IX) to heme O by substitution of the vinyl group on carbon 2 of heme B porphyrin ring with a hydroxyethyl farnesyl side group. | Conserved hypothetical protein. | 0.900 |
| ctaB | hemE | Atu0769 | Atu2835 | Protoheme IX farnesyltransferase; Converts heme B (protoheme IX) to heme O by substitution of the vinyl group on carbon 2 of heme B porphyrin ring with a hydroxyethyl farnesyl side group. | Uroporphyrinogen decarboxylase; Catalyzes the decarboxylation of four acetate groups of uroporphyrinogen-III to yield coproporphyrinogen-III. | 0.482 |
| ctaB | hemF | Atu0769 | Atu2247 | Protoheme IX farnesyltransferase; Converts heme B (protoheme IX) to heme O by substitution of the vinyl group on carbon 2 of heme B porphyrin ring with a hydroxyethyl farnesyl side group. | Coproporphyrinogen III oxidase; Involved in the heme biosynthesis. Catalyzes the aerobic oxidative decarboxylation of propionate groups of rings A and B of coproporphyrinogen-III to yield the vinyl groups in protoporphyrinogen- IX. | 0.491 |
| ctaB | hemH | Atu0769 | Atu3771 | Protoheme IX farnesyltransferase; Converts heme B (protoheme IX) to heme O by substitution of the vinyl group on carbon 2 of heme B porphyrin ring with a hydroxyethyl farnesyl side group. | Ferrochelatase; Catalyzes the ferrous insertion into protoporphyrin IX. Belongs to the ferrochelatase family. | 0.927 |
| ctaB | hemO | Atu0769 | Atu2502 | Protoheme IX farnesyltransferase; Converts heme B (protoheme IX) to heme O by substitution of the vinyl group on carbon 2 of heme B porphyrin ring with a hydroxyethyl farnesyl side group. | Heme oxygenase. | 0.900 |