| Enzyme | Restriction site | Origin | Temperature |
| AarI | ...CACCTGCNNNN NNNNN... ...GTGGACGNNNNNNNN N... | Arthrobacter aurescens | 37 oC |
| AasI | ...GACNNNN NNGTC... ...CTGNN NNNNCAG... | Arthrobacter aurescens | 37 oC |
| AatII | ...GACGT C... ...C TGCAG... | Acetobacter aceti | 37 oC |
| AccI | ...GT MKAC... ...CAKM TG... | Acinetobacter calcoaceticus | 37 oC |
| AccII | ...CG CG... ...GC GC... | Acinetobacter calcoaceticus | 37 oC |
| AccIII | ...T CCGGA... ...AGGCC T... | Acinetobacter calcoaceticus | 65 oC |
| Acc16I | ...TGC GCA... ...ACG CGT... | Acinetobacter calcoaceticus | 37 oC |
| Acc36I | ...ACCTGCNNNN NNNNN... ...TGGACGNNNNNNNN N... | Acinetobacter calcoaceticus | 37 oC |
| Acc65I | ...G CTACC... ...CCATG G... | Acinetobacter calcoaceticus | 37 oC |
| AccB1I | ...G GYRCC... ...CCRYG G... | Acinetobacter calcoaceticus | 37 oC |
| AccB7I | ...CCANNNNN TGG... ...GGTN NNNNACC... | Acinetobacter calcoaceticus | 37 oC |
| AccBSI | ...CCG CTC... ...GGC GAG... | Acinetobacter calcoaceticus | 37 oC |
| AciI | ...C CGC... ...GGC G... | Arthrobacter citreus | 37 oC |
| AclI | ...AA CGTT... ...TTGC AA... | Acinetobacter calcoaceticus | 37 oC |
| AclWI | ...GGATCNNNN NN... ...CCTAGNNNNN N... | Acinetobacter calcoaceticus | 37 oC |
| AcsI | ...R AATTY... ...YTTAA R... | Arthrobacter citreus | 50 oC |
| AcuI | ...CTGAAGNNNNNNNNNNNNNNNN N... ...GACTTCNNNNNNNNNNNNNN NNN... | Acinetobacter calcoaceticus | 37 oC |
| AcvI | ...CAC GTG... ...GTG CAC... | Aeromonas caviae | 37 oC |
| AcyI | ...GR CGYC... ...CYGC RG... | Anabaena cylindrica | 50 oC |
| AdeI | ...CACNNN GTG... ...GTG NNNCAC... | Alcaligenes denitrificans | 37 oC |
| AfaI | ...GT AC... ...CA TG... | Acidocella facilis | 37 oC |
| AfeI | ...AGC GCT... ...TCG CGA... | Alcaligenes faecalis | 37 oC |
| AflII | ...C TTAAG... ...GAATT C... | Anabaena flos-aquae | 37 oC |
| AflIII | ...A CRYGT... ...TGYRC A... | Anabaena flos-aquae | 37 oC |
| AgeI | ...A CCGGT... ...TGGCC A... | Ruegeria gelatinovorans | 37 oC |
| AhdI | ...GACNNN NNGTC... ...CTGNN NNNCAG... | Aeromonas hydrophila | 37 oC |
| AhlI | ...A CTAGT... ...TGATC A... | Pseudoalteromonas haloplanktis | 37 oC |
| AjnI | ...N CCWGGN... ...NGGWCC N... | Acinetobacter johnsonii | 55 oC |
| AleI | ...CACNN NNGTG... ...GTGNN NNCAC... | Microbacterium liquefaciens | 37 oC |
| AluI | ...AG CT... ...TC GA... | Arthrobacter luteus | 37 oC |
| Alw21I | ...GWGCW C... ...C WCGWG... | Acinetobacter lwoffii | 37 oC |
| Alw26I | ...GTCTCN NNNNN... ...CAGAGNNNNN N... | Acinetobacter lwoffii | 37 oC |
| Alw44I | ...G TGCAC... ...CACGT G... | Acinetobacter lwoffii | 37 oC |
| AlwI | ...GGATCNNNN NN... ...CCTAGNNNNN N... | Acinetobacter lwoffii | 37 oC |
| AlwNI | ...CAGNNN CTG... ...GTC NNNGAC... | Acinetobacter lwoffii | 37 oC |
| Ama87I | ...C YCGRG... ...GTGCY C... | Alteromonas macleodii | 37 oC |
| Aor13HI | ...T CCGGA... ...AGGCC T... | Acidiphilium organovorum | 37 oC |
| Aor51HI | ...AGC GCT... ...TCG CGA... | Acidiphilium organovorum | 37 oC |
| ApaI | ...GGGCC C... ...C CCGGG... | Acetobacter pasteurianus | 37 oC |
| ApaLI | ...G TGCAC... ...CACGT G... | Acetobacter pasteurianus | 37 oC |
| ApeKI | ...G CWGC... ...CGWC G... | Aeropyrum pernix | 37 oC |
| ApoI | ...R AATTY... ...YTTAA R... | Arthrobacter protophormiae | 50 oC |
| AscI | ...GG CGCGCC... ...CCGCGC GG... | Arthrobacter species | 37 oC |
| AseI | ...AT TAAT... ...TAAT TA... | Aquaspirillum serpens | 37 oC |
| AsiSI | ...GCGAT CGC... ...CGC TAGCG... | Arthrobacter species | 37 oC |
| AspI | ...GACN NNGTC... ...CTGNN NCAG... | Achromobacter species | 37 oC |
| Asp700I | ...GAANN NNTTC... ...CTTNN NNAAG... | Achromobacter species | 37 oC |
| Asp718I | ...G GTACC... ...CCATG G... | Achromobacter species | 37 oC |
| AspA2I | ...C CTAGG... ...GGATC C... | Achromobacter species | 37 oC |
| AspEI | ...GACNNN NNGTC... ...CTGNN NNNCAG... | Achromobacter species | 37 oC |
| AspHI | ...GWGCW C... ...C WCGWG... | Achromobacter species | 37 oC |
| AspLEI | ...GCG C... ...C GCG... | Achromobacter species | 37 oC |
| AspS9I | ...G GNCC... ...CCNG G... | Achromobacter species | 37 oC |
| AssI | ...AGT ACT... ...TCA TGA... | Arthrobacter species | 37 oC |
| AsuII | ...TT CGAA... ...AAGC TT... | Anabaena subcylindrica | 37 oC |
| AsuC2I | ...CC SGG... ...GGS CC... | Actinobacillus suis | 37 oC |
| AsuHPI | ...GGTGANNNNNNNN N... ...CCACTNNNNNNN NN... | Actinobacillus suis | 37 oC |
| AsuNHI | ...G CTAGC... ...CGATC G... | Actinobacillus suis | 37 oC |
| AvaI | ...C YCGRG... ...GRGCY C... | Anabaena variabilis | 37 oC |
| AvaII | ...G GWCC... ...CCWG G... | Anabaena variabilis | 37 oC |
| AviII | ...TGC GCA... ...ACG CGT... | Anabaena variabilis | 37 oC |
| AvrII | ...C CTAGG... ...GGATC C... | Anabaena variabilis | 37 oC |
| AxyI | ...CC TNAGG... ...GGANT CC... | Gluconacetobacter xylinus | 37 oC |