Table 1.

Iron-scavenging and regulation systems

SystemProteinHP no.Reference
StorageFerritin PfrHP0653 21
NapAHP0243 20
SiderophoreFecEa HP0888
FecDa HP0889
FecAa HP0686 128
HP0807
HP1400
TonBHP1341 288
ExbBHP1130
HP1139
HP1445
ExbDHP1129
HP1340
HP1446
CeuEHP1561
Ferrous iron uptakeFeoBb HP0687
RegulationFrpBHP0876 300
HP0915
HP0916
HP1512
HP0590
FurHP1027 19
Histidine kinase regulatorHP1043
  • a FecR, FecI, FecB, and FecC seem not to be encoded by H. pylori.

  • b The feoA gene was not identified in the H. pylori sequence.