| Q8TUQ0 | CHEB2_METAC | Methanosarcina acetivorans (strain ATCC 35395 / DSM 2834 / JCM 12185 / C2A) | cheB2 MA_0015 | Detail |
| Q2LSL3 | CHEB2_SYNAS | Syntrophus aciditrophicus (strain SB) | cheB2 SYNAS_11940 SYN_00964 | Detail |
| Q2IQ87 | CHEB3_ANADE | Anaeromyxobacter dehalogenans (strain 2CP-C) | cheB3 Adeh_1192 | Detail |
| Q02ML7 | CAS1_PSEAB | Pseudomonas aeruginosa (strain UCBPP-PA14) | cas1 PA14_33350 | Detail |
| Q1MC14 | CHEB2_RHIL3 | Rhizobium leguminosarum bv. viciae (strain 3841) | cheB2 RL4028 | Detail |
| Q2FQQ4 | CAS2B_METHJ | Methanospirillum hungatei JF-1 (strain ATCC 27890 / DSM 864 / NBRC 100397 / JF-1) | cas2-2 Mhun_1857 | Detail |
| Q10905 | CRN4_CAEEL | Caenorhabditis elegans | crn-4 AH9.2 | Detail |
| 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 |