| NPAS3 / neuronal PAS domain protein 3 / Q8IXF0* | ENSDARG00000109820 | 46 |
| sim1a / single-minded family bHLH transcription factor 1a / SIM1* / Q61045* / P81133* / Single-minded homolog 1 * / single-minded family bHLH transcription factor 1* | ENSDARG00000023316 | 24 |
| sim1b / single-minded family bHLH transcription factor 1b / SIM1* / Q61045* / P81133* / Single-minded homolog 1 * / single-minded family bHLH transcription factor 1* | ENSDARG00000013789 | 23 |
| hif1ab / hypoxia inducible factor 1, alpha subunit (basic helix-loop-helix transcription factor) b / HIF1A* / Q61221* / Q16665* / Hypoxia-inducible factor 1-alpha * / hypoxia inducible fact... | ENSDARG00000034293 | 21 |
| hif1aa / hypoxia inducible factor 1, alpha subunit (basic helix-loop-helix transcription factor) a / HIF1A* / Q61221* / Q16665* / Hypoxia-inducible factor 1-alpha * / hypoxia inducible fact... | ENSDARG00000006181 | 21 |
| epas1a / endothelial PAS domain protein 1a / EPAS1* / Q99814* / P97481* / endothelial PAS domain protein 1* / Endothelial PAS domain-containing protein 1 * | ENSDARG00000008697 | 21 |
| epas1b / endothelial PAS domain protein 1b / EPAS1* / Q99814* / P97481* / endothelial PAS domain protein 1* / Endothelial PAS domain-containing protein 1 * | ENSDARG00000057671 | 20 |
| hif1al / hypoxia-inducible factor 1, alpha subunit, like / HIF3A* / Q9Y2N7* / Q0VBL6* / Hypoxia-inducible factor 3-alpha * / hypoxia inducible factor 3 alpha subunit* | ENSDARG00000100826 | 18 |
| hif1al2 / hypoxia-inducible factor 1, alpha subunit, like 2 | ENSDARG00000044550 | 15 |
| arnt2 / aryl-hydrocarbon receptor nuclear translocator 2 / Q61324* / Q9HBZ2* | ENSDARG00000103697 | 14 |
| arntl2 / aryl hydrocarbon receptor nuclear translocator-like 2 / Q2VPD4* / Q8WYA1* / Aryl hydrocarbon receptor nuclear translocator-like protein 2 * | ENSDARG00000041381 | 13 |
| arntl1a / aryl hydrocarbon receptor nuclear translocator-like 1a / ARNTL* / O00327* / Q9WTL8* / aryl hydrocarbon receptor nuclear translocator like* / Mus musculus aryl hydrocarbon receptor... | ENSDARG00000006791 | 12 |
| arntl1b / aryl hydrocarbon receptor nuclear translocator-like 1b / ARNTL* / O00327* / Q9WTL8* / aryl hydrocarbon receptor nuclear translocator like* / Mus musculus aryl hydrocarbon receptor... | ENSDARG00000035732 | 12 |
| arnt / aryl hydrocarbon receptor nuclear translocator / P27540* / P53762* | ENSDARG00000021855 | 12 |
| clocka / clock circadian regulator a / CLOCK* / O15516* / O08785* / clock circadian regulator* / Circadian locomoter output cycles protein kaput * | ENSDARG00000011703 | 11 |
| clockb / clock circadian regulator b / CLOCK* / O15516* / O08785* / clock circadian regulator* / Circadian locomoter output cycles protein kaput * | ENSDARG00000003631 | 11 |
| npas2 / neuronal PAS domain protein 2 / Q99743* | ENSDARG00000016536 | 10 |
| CABZ01064671.1 | ENSDARG00000039935 | 10 |
