| Primers | Sequence (5’-3’) | Reference |
| CagPAI empty site | ||
| 468 HP519 496 HP549 | GCT TGC TTG TAT TGG CCT TG GCA TGC ACA TTC CCT AAA GTG | Achtman et al., 1999; Kersulyte et al., 1999 |
| CagA phosphorylation motifs | ||
| cagA28F | TTCTCAAAGGAGCAATTGGC | Argent et al., 2005 |
| cagA-P1C | GTCCTGCTTTCTTTTTATTAACTTK AGC | |
| cagA-P2CG | TTTAGCAACTTGAGCGTAAATGGG | |
| cagA-P2TA | TTTAGCAACTTGAGTATAAATGGG | |
| cagA-P3E | ATCAATTGTAGCGTAAATGGG | |
| cagA-pD | TTGATTTGCCTCATCAAAATC | Jones et al., 2009 |