| Enzyme | Restriction site | Origin | Temperature |
| Cac8I | ...GCN NGC... ...CGN NCG... | Clostridium acetobutylicum | 37 oC |
| CaiI | ...CAGNNN CTG... ...GTC NNNGAC... | Delftia acidovorans | 60 oC |
| CciNI | ...GC GGCCGC... ...CGCCGG CG... | Curtobacterium citreum | 65 oC |
| CelII | ...GC TNAGC... ...CGANT CG... | Coccochloris elabens | 65 oC |
| CfoI | ...GCG C... ...C GCG... | Clostridium formicoaceticum | 37 oC |
| Cfr9I | ...C CCGGG... ...GGGCC C... | Citrobacter freundii | 37 oC |
| Cfr10I | ...R CCGGY... ...TGGCC R... | Citrobacter freundii | 37 oC |
| Cfr13I | ...G GNCC... ...CCNG G... | Citrobacter freundii | 37 oC |
| Cfr42I | ...CCGC GG... ...GG CGCC... | Citrobacter freundii | 37 oC |
| CfrI | ...Y GGCCR... ...RCCGG Y... | Citrobacter freundii | 65 oC |
| ClaI | ...AT CGAT... ...TAGC TA... | Caryophanon latum | 65 oC |
| CpoI | ...CG GWCCG... ...GCCWG GC... | Corynebacterium variabile | 55 oC |
| CseI | ...GACGCNNNNN NNNNNN... ...CTGCGNNNNNNNNNN N... | Chryseobacterium species | 65 oC |
| CspI | ...CG GWCCG... ...GCCWG GC... | Clostridium species | 60 oC |
| Csp45I | ...TT CGAA... ...AAGC TT... | Clostridium sporogenes | 60 oC |
| Csp6I | ...G TAC... ...CAT G... | Corynebacterium species | 65 oC |
| CspAI | ...A CCGGT... ...TGGCC A... | Corynebacterium species | 65 oC |
| CviAII | ...C ATG... ...GTA C... | Chlorella virus | 60 oC |
| CviJI | ...RG CY... ...YC GR... | Chlorella strain | 65 oC |
| DdeI | ...C TNAG... ...GANT C... | Desulfovibrio desulfuricans | 50 oC |
| DpnI | ...GmeA TC... ...CT meAG... | Streptococcus pneumoniae | 37 oC |
| DpnII | ...N GATCN... ...NCTAG N... | Streptococcus pneumoniae | 65 oC |
| DraI | ...TTT AAA... ...AAA TTT... | Deinococcus radiophilus | 50 oC |
| DraII | ...RG GNCCY... ...TCCNG GR... | Deinococcus radiophilus | 55 oC |
| DraIII | ...CACNNN GTG... ...GTG NNNCAC... | Deinococcus radiophilus | 60 oC |
| DrdI | ...GACNNNN NNGTC... ...CTGNN NNNNCAG... | Deinococcus radiophilus | 37 oC |
| DriI | ...GACNNN NNGTC... ...CTGNN NNNCAG... | Deinococcus radiophilus | 60 oC |
| DseDI | ...GACNNNN NNGTC... ...CTGNN NNNNCAG... | Deinococcus species | 60 oC |
| EaeI | ...Y GGCCR... ...RCCGG Y... | Enterobacter aerogenes | 65 oC |
| EagI | ...C GGCCG... ...GCCGG C... | Pantoea agglomerans | 55 oC |
| Eam1104I | ...CTCTTCN NNNN... ...GAGAAGNNNN N... | Enterobacter amnigenus | 60 oC |
| Eam1105I | ...GACNNN NNGTC... ...CTGNN NNNCAG... | Enterobacter amnigenus | 37 oC |
| EarI | ...CTCTTCN NNNN... ...GAGAAGNNNN N... | Enterobacter aerogenes | 60 oC |
| EciI | ...GGCGGANNNNNNNNNNN N... ...CCGCCTNNNNNNNNN NNN... | Escherichia coli | 55 oC |
| Ecl136II | ...GAG CTC... ...CTC GAG... | Enterobacter cloacae | 55 oC |
| EclHKI | ...GACNNN NNGTC... ...CTGNN NNNCAG... | Enterobacter cloacae | 50 oC |
| EclXI | ...C GGCCG... ...GCCGG C... | Enterobacter cloacae | 60 oC |
| Eco24I | ...GRGCY C... ...C TCGRG... | Escherichia coli | 60 oC |
| Eco31I | ...GGTCTCN NNNNN... ...CCAGAGNNNNN N... | Escherichia coli | 50 oC |
| Eco32I | ...GAT ATC... ...CTA TAG... | Escherichia coli | 37 oC |
| Eco47I | ...G GWCC... ...CCWG G... | Escherichia coli | 37 oC |
| Eco47III | ...AGC GCT... ...TCG CGA... | Escherichia coli | 37 oC |
| Eco52I | ...C GGCCG... ...GCCGG C... | Escherichia coli | 37 oC |
| Eco57I | ...CTGAAGNNNNNNNNNNNNNNNN N... ...GACTTCNNNNNNNNNNNNNN NNN... | Escherichia coli | 37 oC |
| Eco57MI | ...CTGRAGNNNNNNNNNNNNNNNN N... ...GACYTCNNNNNNNNNNNNNN NNN... | Escherichia coli | 37 oC |
| Eco72I | ...CAC GTG... ...GTG CAC... | Escherichia coli | 60 oC |
| Eco81I | ...CC TNAGG... ...GGANT CC... | Escherichia coli | 60 oC |
| Eco88I | ...C YCGRG... ...GRGCY C... | Escherichia coli | 37 oC |
| Eco91I | ...G GTNACC... ...CCANTG G... | Escherichia coli | 37 oC |
| Eco105I | ...TAC GTA... ...ATG CAT... | Escherichia coli | 37 oC |
| Eco130I | ...C CWWGG... ...GGWWC C... | Escherichia coli | 37 oC |
| Eco147I | ...AGG CCT... ...TCC GGA... | Escherichia coli | 37 oC |
| EcoICRI | ...GAG CTC... ...CTC GAG... | Escherichia coli | 37 oC |
| EcoNI | ...CCTNN NNNAGG... ...GGANNN NNTCC... | Escherichia coli | 37 oC |
| EcoO109I | ...RG GNCCY... ...YCCNG GR... | Escherichia coli | 37 oC |
| EcoO65I | ...G GTNACC... ...CCANTG G... | Escherichia coli | 37 oC |
| EcoP15I | ...CAGCAGNNNNNNNNNNNNNNNNNNNNNNNNN NNN... ...GTCGTCNNNNNNNNNNNNNNNNNNNNNNNNNNN N... | Escherichia coli | 37 oC |
| EcoRI | ...G AATTC... ...CTTAA G... | Escherichia coli | 37 oC |
| EcoRII | ...N CCWGGN... ...NGGWCC N... | Escherichia coli | 37 oC |
| EcoR V | ...GAT ATC... ...CTA TAG... | Escherichia coli | 37 oC |
| EcoT14I | ...C CWWGG... ...GGWWC C... | Escherichia coli | 37 oC |
| EcoT22I | ...ATGCA T... ...T ACGTA... | Escherichia coli | 37 oC |
| EcoT38I | ...GRGCY C... ...C YCGRG... | Escherichia coli | 37 oC |
| EgeI | ...GGC GCC... ...CCG CGG... | Enterobacter gergoviae | 37 oC |
| EheI | ...GGC GCC... ...CCG CGG... | Pantoea agglomerans | 37 oC |
| ErhI | ...C CWWGG... ...GGWWC C... | Erwinia rhapontici | 37 oC |
| Esp3I | ...CGTCTCN NNNNN... ...GCAGAGNNNNN N... | Erwinia species | 37 oC |