Table 1. Position of the circadian E-box elements in the promoter regions (+/- 2000 nucleotides from major transcription starting site) of genes encoding major antioxidant enzymes.
SOD - Superoxide dismutase; CAT - catalase; GPX - glutathione peroxidase; PRDX - peroxiredoxin; TXNRD - thioredoxin reductase; SESN - sestrin
| Homo Sapiens | Pan Troglodites | Macaca Mulatta | Mus Musculus | Rattus Norvegicus | |
| SOD1 | -886 | -1055 | -1044 | -631, 768, 1787 | -1661, -685, 743, 1749 |
| SOD2 | none | n/a | n/a | none | none |
| SOD3 | -1673 | n/a | n/a | none | none |
| GPX1 | -19 | -23 | -93 | -1196, -908, -54, 12 | -82 |
| GPX2 | 974 | n/a | n/a | 1263 | 72 |
| GPX3 | 979 | 1068 | 1061 | -570, 1268 | -1507, 198, 921 |
| GPX4 | -385 | n/a | n/a | -1669 | none |
| GPX6 | 173 | n/a | n/a | -617, -168, 1580 | none |
| CAT | -1751 | none | 413 | 46, 1437 | -969, 47, 1434 |
| PRDX1 | 372 | none | 407 | 218, 528 | -1413, -1402, 198 |
| PRDX2 | none | n/a | n/a | none | none |
| PRDX3 | -136 | -142 | -148 | 428 | 406, 1733 |
| PRDX4 | none | n/a | n/a | none | none |
| PRDX5 | -836 | n/a | n/a | -1019, -282 | none |
| PRDX6 | -290, 991 | -852, 474 | -229, 1048 | -159, -114, 264, 904 | -185, -140, 248 |
| SESN1 | 345, 1089 | 464 | -1549, -733 | -292, -776, 1390 | -759 |
| TXNRD1 | -260 | n/a | n/a | 1510 | -841, 170, 975 |