Table 1 Presence of predicted phase variable DNA restriction/modification genes identified by Salaün et al . [[12]] in the genome of OND79
From: Phase-variable restriction/modification systems are required for Helicobacter pylori colonization
ORF | 26695 ORF | Present in OND79 | OND79 phase | Repeat |
|---|---|---|---|---|
Nth (endonuclease III) | HP0585 | Yes | On | none |
Adenine-specific methyltransferase | HP1353-4 | No | ||
Type III RM system M protein | HP1369-70 | Yes | Off | |
Type II RM system ?-subunit | HP1471 | Yes | Off | G13 |
Type II RM system M protein | HP1522 | Yes | Off | G10 |
HsdR (type I restriction enzyme) | HP0464 | Yes | Off | C9 |
Cytosine-specific methyltransferase | HP0051 | No | ||
MboIIR (type II restriction protein) | HP1366 | No | G9 | |
HemK or HemG (methyltransferase) | HP0381 | Yes | On | G7, G7 |