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. 2017 Apr 11;93(4):196–219. doi: 10.2183/pjab.93.013

Figure 7.

Figure 7.

Role of CM polymorphism in CagA-PAR1b interaction. CagA binds to PAR1b as well as other PAR1 family members via the C-terminal CM motif. Sequence diversity within the CM motif of CagA influences the strength of CagA-PAR1b interaction. PAR1b-binding affinity of East Asian CagA possessing one CME motif is equivalent to Western CagA containing two CMW motifs. Western CagA possessing four CMW motifs, though very rare (<5% of all Western CagA), exhibits an extremely strong binding to PAR1b.