| P45956 | CAS2_ECOLI | Escherichia coli (strain K12) | ygbF cas2 b2754 JW5438 | Detail |
| Q03JI6 | CAS9B_STRTD | Streptococcus thermophilus (strain ATCC BAA-491 / LMD-9) | cas9-2 csn1 STER_1477 | Detail |
| G3ECR2 | CAS1_STRTR | Streptococcus thermophilus | cas1 | Detail |
| F2XG53 | CAS3_STRTR | Streptococcus thermophilus | cas3 | Detail |
| A2BKJ6 | CAS2_HYPBU | Hyperthermus butylicus (strain DSM 5456 / JCM 9403 / PLM1-5) | cas2 Hbut_0650 | Detail |
| O28401 | CAS1A_ARCFU | Archaeoglobus fulgidus (strain ATCC 49558 / VC-16 / DSM 4304 / JCM 9628 / NBRC 100126) | cas1-1 AF_1878 | Detail |
| P38777 | FSH1_YEAST | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | FSH1 YHR049W | Detail |
| Q99369 | FSH3_YEAST | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | FSH3 YOR280C | Detail |
| B4P5U9 | FEN1_DROYA | Drosophila yakuba (Fruit fly) | Fen1 GE14031 | Detail |
| Q9URU2 | DNA2_SCHPO | Schizosaccharomyces pombe (strain 972 / ATCC 24843) (Fission yeast) | dna2 SPBC16D10.04c | Detail |