| B5DUR8 | FEN1_DROPS | Drosophila pseudoobscura pseudoobscura (Fruit fly) | Fen1 GA27689 | Detail |
| B4QIG6 | FEN1_DROSI | Drosophila simulans (Fruit fly) | Fen1 GD25512 | Detail |
| O53423 | GDSLL_MYCTU | Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) | Rv1075c | Detail |
| Q8SS91 | FEN1_ENCCU | Encephalitozoon cuniculi (strain GB-M1) (Microsporidian parasite) | FEN1 ECU03_1080 | Detail |
| Q8QHA5 | DNA2_XENLA | Xenopus laevis (African clawed frog) | dna2 dna2l | Detail |
| A7UW97 | FEN1_NEUCR | Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) | dnr-8 fen1 NCU10776 | Detail |