Table 2. Plasmid restriction test for Salmonella R-M systems.
| Plasmid | R-M system | ||
|---|---|---|---|
| StySEAI | StySENI | StySGI | |
| pMECA | − | − | − |
| pL1 | − | − | − |
| pL2 | + | + | + |
| pL3 | + | − | − |
| pL4 | + | + | − |
| pL6 | + | − | − |
| pE2 | + | − | − |
| pE3 | + | − | − |
| pE4 | − | + | − |
| pE5 | + | + | − |
| pE6 | + | − | − |
| pE8 | + | + | − |
| pE9 | − | − | − |
| pE10 | − | + | − |
| pE11 | + | − | − |
| pE12 | + | + | − |
| pE14 | − | − | − |
| pE15 | + | + | − |
| pE16 | + | − | − |
| pE17 | − | + | − |
| pE18 | + | − | − |
| pE19 | + | + | + |
| pE22 | + | − | − |
| pE23 | − | − | − |
| pE24 | − | − | + |
| pE26 | − | + | − |
| pE28 | − | − | − |
| pE29 | − | − | − |
| pE31 | − | − | − |
| pE32 | + | + | − |
| pE33 | − | + | − |
| pE38 | − | + | − |
| pE41 | − | + | − |
| pE44 | − | − | − |
| pE45 | + | + | − |
| Recognition sequence | ACA(6N)TYCA | CGA(6N)TACC | TAAC(7N)RTCG |
| Type | I (new) | I (StySBLI isoschizomer) | I (new) |
Plus (+) or minus (−) indicates the presence or absence of a recognition sequence in each plasmid.