Table 2.
Modification-dependent or modification-stimulated REases described in this work
| Representative enzymes | GeneBank Accession # or UniProt ID | Other domains | Putative modification sensing domain | Putative catalytic domain | DNA modification stimulated in vitro activity | Modification dependent restriction (in vivo assays) | Double strand cleavage or nicking activity | 
|---|---|---|---|---|---|---|---|
| TspA15I | WP_020146688 | PUA-like | HNH | (g)5hmC, 5hmdU > 5mC | restriction of 5hmC (T4gt) > g5hmC (T4) | ds cleavage (5hmCNG) | |
| VcaM4I | WP_010645282 | 5hmC > g5hmC, 5hmdU | restriction of 5hmC (T4gt) > g5hmC (T4) | ||||
| CmeDI | A0A3R2GY07 (UniProt) | 5hmC, 5hmdU > g5hmC, 5mC | restriction of 5hmC (T4gt) and g5hmC (T4) | ||||
| ScoAIV (Sco5333) | NP_629473.1 | SRA (SAD-SRA) | HNH | 5mC | toxicity to Dcm+ Rec− strains | Strong binding to 5mC | |
| MsiJI | WP_065019168 | 5mC or 5hmC | toxicity to Dcm+ strains | ||||
| VcaCI | WP_045378060 | 5hmC | low toxicity to Dcm+ strains | low activity | |||
| AmaNI | WP_084264606 | Caspase | low toxicity to Dcm+ strains | low nicking activity | |||
| MfoEI, MmaNI, RrhNI, Vsi48I, Vvu009I | WP_064867438 | 5hmC (5mC not tested) | (?/Unknown) | ||||
| WP_084259214 | |||||||
| WP_063758401 | |||||||
| WP_052237964 | |||||||
| WP_060534244 | |||||||
| YenY4I | WP_077293998 | DUF3427 and PUA-like | PD-(D/E)XK | 5mC or 5hmC | restriction of 5hmC (T4gt), λ some toxicity to Dcm+ strains | Low activity in Mn2+ | |
| McaZI | WP_064610770 | DUF3427 | PD-(D/E)XK | binding to 5mC or 5hmC, low activity | restriction of 5hmC (T4gt) toxicity to Dcm+ strains | ||
| BwiMMI | WP_000732259 | binding to 5mC or 5hmC | restriction of 5hmC (T4gt) some toxicity to Dcm+ strains | ||||
| EfaL9I | WP_010818586 | binding to 5mC or 5hmC | restriction of 5hmC (T4gt) toxicity to Dcm+ strains | ||||
| ScoA3V (Sco5330) | NP_629471.1 | distantly related to PUA | HNH | 6mA > A, 5mC | (?/Unknown) | nicking activity (S6mAS) | |
| SRA-nicking domain fusion | SRA domain of ScoA3IV | HNH (gp74) | 5mC > C | Nicking near 5mC |