| CDS description | CDS accession | Island | Host Description |
|---|
| Type I restriction enzyme EcoEI M protein | NC_014306:4376012:4401437 | NC_014306:4376012 | Erwinia billingiae Eb661, complete genome |
| Type I restriction enzyme EcoEI M protein (M.EcoEI) | NC_016745:1548426:1558216 | NC_016745:1548426 | Oceanimonas sp. GK1 chromosome, complete genome |