>2XIG_1|Chains A, B, C, D|FERRIC UPTAKE REGULATION PROTEIN|HELICOBACTER PYLORI (85962) MKRLETLESILERLRMSIKKNGLKNSKQREEVVSVLYRSGTHLSPEEITHSIRQKDKNTSISSVYRILNFLEKENFISVLETSKSGRRYEIAAKEHHDHIICLHCGKIIEFADPEIENRQNEVVKKYQAKLISHDMKMFVWCKECQESES