| Enzyme | Restriction site | Origin | Temperature |
| OliI | ...CACNN NNGTG... ...GTGNN NNCAC... | Oceanospirillum linum | 37 oC |
| PacI | ...TTAAT TAA... ...AAT TAATT... | Pseudomonas alcaligenes | 37 oC |
| PaeI | ...GCATG C... ...C GTACG... | Pseudomonas aeruginosa | 37 oC |
| PaeR7I | ...C TCGAG... ...GAGCT C... | Pseudomonas aeruginosa | 37 oC |
| PagI | ...T CATGA... ...AGTAC T... | Pseudomonas alcaligenes | 37 oC |
| PasI | ...CC CWGGG... ...GGGWC CC... | Pseudomonas anguilliseptica | 55 oC |
| PauI | ...G CGCGC... ...CGCGC G... | Paracoccus alcaliphilus | 37 oC |
| PceI | ...AGG CCT... ...TCC GGA... | Planococcus citreus | 50 oC |
| PciI | ...A CATGT... ...TGTAC A... | Planococcus citreus | 37 oC |
| PctI | ...GAATGCN N... ...CTTAC GNN... | Planococcus citreus | 37 oC |
| PdiI | ...GCC GGC... ...CGG CCG... | Brevundimonas diminuta | 37 oC |
| PdmI | ...GAANN NNTTC... ...CTTNN NNAAG... | Brevundimonas diminuta | 37 oC |
| PfeI | ...G AWTC... ...CTWA G... | Psychrobacter faecalis | 37 oC |
| PflFI | ...GACN NNGTC... ...CTGNN NCAG... | Pseudomonas fluorescens | 37 oC |
| PflMI | ...CCANNNN NTGG... ...GGTN NNNNACC... | Pseudomonas fluorescens | 37 oC |
| PfoI | ...T CCNGGA... ...AGGNCC T... | Pseudomonas fluorescens | 37 oC |
| PhoI | ...GG CC... ...CC GG... | Pyrococcus horikoshii | 75 oC |
| PinAI | ...A CCGGT... ...TGGCC A... | Pseudomonas inaequalis | 37 oC |
| Ple19I | ...CGAT CG... ...GC TAGC... | Paucimonas lemoignei | 37 oC |
| PleI | ...GAGTCNNNN NN... ...CTCAGNNNNN N... | Paucimonas lemoignei | 37 oC |
| PmaCI | ...CAC GTG... ...GTC CAC... | Stenotrophomonas maltophilia | 37 oC |
| PmeI | ...GTTT AAAC... ...CAAA TTTG... | Pseudomonas mendocina | 37 oC |
| PmlI | ...CAC GTG... ...GTG CAC... | Stenotrophomonas maltophilia | 37 oC |
| PpsI | ...GAGTCNNNN NN... ...CTCAGNNNNN N... | Pseudomonas pseudoalcaligenes | 37 oC |
| PpuMI | ...RG GWCCY... ...YCCWG GR... | Pseudomonas putida | 37 oC |
| PscI | ...A CATGT... ...TGTAC A... | Paracoccus species | 30 oC |
| PshAI | ...GACNN NNGTC... ...CTGNN NNCAG... | Plesiomonas shigelloides | 25 oC |
| PshBI | ...AT TAAT... ...TAAT TA... | Plesiomonas shigelloides | 37 oC |
| PsiI | ...TTA TAA... ...AAT ATT... | Pseudomonas species | 37 oC |
| Psp124BI | ...GAGCT C... ...C TCGAG... | Pseudomonas species | 37 oC |
| Psp1406I | ...AA CGTT... ...TTGC AA... | Pseudomonas pseudoalcaligenes | 37 oC |
| Psp5II | ...RG GWCCY... ...YCCWG GR... | Pseudomonas species | 37 oC |
| Psp6I | ...N CCWGGN... ...NGGWCC N... | Pseudomonas species | 55 oC |
| PspCI | ...CAC GTG... ...GTG CAC... | Pseudomonas species | 37 oC |
| PspEI | ...G GTNACC... ...CCANTG G... | Pseudomonas species | 37 oC |
| PspGI | ...N CCWGGN... ...NGGWCC N... | Pyrococcus species | 75 oC |
| PspLI | ...C GTACG... ...GCATG C... | Pseudomonas species | 37 oC |
| PspN4I | ...GGN NCC... ...CCN NGG... | Pseudomonas species | 37 oC |
| PspOMI | ...G GGCCC... ...CCCGG G... | Pseudomonas species | 37 oC |
| PspPPI | ...RG GWCCY... ...YCCWG GR... | Pseudomonas species | 37 oC |
| PspXI | ...VC TCGAGB... ...BGAGCT CV... | Pseudomonas species | 37 oC |
| PsrI | ...NNNNNN NNNNNNNGAACNNNNNNTACNNNNNNNNNNNN N... ...N NNNNNNNNNNNNCTTGNNNNNNATGNNNNNNN NNNNNN... | Pseudomonas stutzeri | 30 oC |
| PstI | ...CTGCA G... ...G ACGTC... | Providencia stuartii | 37 oC |
| PsuI | ...R GATCY... ...TCTAG R... | Providencia stuartii | 37 oC |
| PsyI | ...GACN NNGTC... ...CTGNN NCAG... | Pseudomonas syringae | 37 oC |
| PvuI | ...CGAT CG... ...GC TAGC... | Proteus vulgaris | 37 oC |
| PvuII | ...CAG CTG... ...GTC GAC... | Proteus vulgaris | 37 oC |