| P682 | biological process | electron transport chain | Q211016 |
| | xanthine catabolic process | Q15330844 |
| P681 | cell component | cytosol | Q220599 |
| P702 | encoded by | F15E6.6 | Q29702728 |
| P703 | found in taxon | Caenorhabditis elegans | Q91703 |
| P527 | has part(s) | Aldehyde oxidase/xanthine dehydrogenase, a/b hammerhead | Q4713510 |
| | Aldehyde oxidase/xanthine dehydrogenase, molybdopterin binding | Q24720616 |
| | [2Fe-2S]-binding | Q24722179 |
| | 2Fe-2S ferredoxin, iron-sulphur binding site | Q24723578 |
| | Molybdopterin dehydrogenase, FAD-binding | Q24773312 |
| | FAD-binding domain, PCMH-type | Q24776069 |
| | 2Fe-2S ferredoxin-type iron-sulfur binding domain | Q24785042 |
| P680 | molecular function | metal ion binding | Q13667380 |
| | oxidoreductase activity | Q14349613 |
| | iron ion binding | Q14358439 |
| | electron transfer activity | Q14358476 |
| | flavin adenine dinucleotide binding | Q14599303 |
| | oxidoreductase activity, acting on CH-OH group of donors | Q14599646 |
| | iron-sulfur cluster binding | Q14883461 |
| | 2 iron, 2 sulfur cluster binding | Q14904851 |
| | xanthine dehydrogenase activity | Q15330833 |
| | FAD binding | Q21096302 |
| | oxidoreductase activity, acting on the aldehyde or oxo group of donors | Q21761333 |
| P361 | part of | Aldehyde oxidase/xanthine dehydrogenase | Q24785330 |
| | 2Fe-2S ferredoxin-like superfamily | Q41797154 |
| | FAD-binding, type PCMH-like superfamily | Q41797436 |
| | Aldehyde oxidase/xanthine dehydrogenase, a/b hammerhead superfamily | Q41797952 |
| | [2Fe-2S]-binding domain superfamily | Q41797980 |
| | Aldehyde oxidase/xanthine dehydrogenase, molybdopterin binding domain superfamily | Q41798251 |
| | Aldehyde oxidase/xanthine dehydrogenase, a/b hammerhead, protein family | Q83130434 |
| | Aldehyde oxidase/xanthine dehydrogenase, molybdopterin binding domain, protein family | Q83132707 |
| | [2Fe-2S]-binding domain, protein family | Q83133642 |
| | Molybdopterin dehydrogenase, FAD-binding domain, protein family | Q83140913 |
| | FAD-binding domain, PCMH-type, protein family | Q83145230 |
| | 2Fe-2S ferredoxin-type iron-sulfur binding domain, protein family | Q83164163 |
| | 2Fe-2S ferredoxin, iron-sulphur binding site, protein family | Q95351678 |