| A2BKJ8 | CAS1_HYPBU | Hyperthermus butylicus (strain DSM 5456 / JCM 9403 / PLM1-5) | cas1 Hbut_0652 | Detail |
| O27156 | CAS1_METTH | Methanothermobacter thermautotrophicus (strain ATCC 29096 / DSM 1053 / JCM 10044 / NBRC 100330 / Delta H) (Methanobacterium thermoautotrophicum) | cas1 MTH_1084 | Detail |
| Q8ZZU2 | CAS2A_PYRAE | Pyrobaculum aerophilum (strain ATCC 51768 / IM2 / DSM 7523 / JCM 9630 / NBRC 100827) | cas2-1 PAE0080 | Detail |
| Q46896 | CAS1_ECOLI | Escherichia coli (strain K12) | ygbT cas1 b2755 JW2725 | Detail |
| Q6D0W9 | CAS3_PECAS | Pectobacterium atrosepticum (strain SCRI 1043 / ATCC BAA-672) (Erwinia carotovora subsp. atroseptica) | cas3 ECA3680 | Detail |
| A7HP87 | CAS2_PARL1 | Parvibaculum lavamentivorans (strain DS-1 / DSM 13023 / NCIMB 13966) | cas2 Plav_0097 | Detail |
| P14629 | ERCC5_XENLA | Xenopus laevis (African clawed frog) | ercc5 xpg xpgc | Detail |
| B6YWX4 | FEN_THEON | Thermococcus onnurineus (strain NA1) | fen TON_1099 | Detail |
| A1RWY2 | FEN_THEPD | Thermofilum pendens (strain DSM 2475 / Hrk 5) | fen Tpen_0302 | Detail |
| A8XL25 | FEN1_CAEBR | Caenorhabditis briggsae | crn-1 CBG14945 | Detail |