Q9ZK15 1 MAVVIKVVNGKIQEYENGNYKRTYDSNIVAADTDGHIVAAVTAKGKVEEykngihkrtY 59 Helicobacter pylori J99 Q9F9V5 1 MAIVVKVVNGKIQEFENGIHKRTYGSNAINVQVSGGVVAVTTSKGKVER---------I 50 Helicobacter pylori