| Q9V0P9 | FEN_PYRAB | Pyrococcus abyssi (strain GE5 / Orsay) | fen PYRAB07400 PAB1877 | Detail |
| Q178M1 | FEN1_AEDAE | Aedes aegypti (Yellowfever mosquito) (Culex aegypti) | Fen1 AAEL005870 | Detail |
| A7X2P9 | EX7S_STAA1 | Staphylococcus aureus (strain Mu3 / ATCC 700698) | xseB SAHV_1510 | Detail |
| B1H158 | FEN1_XENTR | Xenopus tropicalis (Western clawed frog) (Silurana tropicalis) | fen1 | Detail |
| Q1R8M7 | EX7L_ECOUT | Escherichia coli (strain UTI89 / UPEC) | xseA UTI89_C2827 | Detail |
| Q0H8Z2 | IEND2_USTMA | Ustilago maydis (strain 521 / FGSC 9021) (Corn smut fungus) | hegI2 rnl | Detail |
| Q3KJK8 | HICA_PSEPF | Pseudomonas fluorescens (strain Pf0-1) | hicA Pfl01_0304 | Detail |
| I3RB26 | CAS6_HALMT | Haloferax mediterranei (strain ATCC 33500 / DSM 1411 / JCM 8866 / NBRC 14739 / NCIMB 2177 / R-4) (Halobacterium mediterranei) | cas6 HFX_6314 | Detail |
| Q53W21 | CAS1A_THET8 | Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579) | cas1-1 TTHB145 | Detail |
| P67459 | EX7S_SALTI | Salmonella typhi | xseB STY0463 t2439 | Detail |