| Catecholate siderophore receptor Fiu |
4 |
| Colicin I receptor |
1 |
| Ferric aerobactin receptor |
2 |
| Ferric enterobactin receptor |
1 |
| Ferric enterobactin receptor PirA |
1 |
| Ferrichrome outer membrane transporter/phage receptor |
1 |
| Ferrichrysobactin receptor |
1 |
| Ferrienterobactin receptor |
1 |
| Ferrioxamine B receptor |
2 |
| Ferrioxamine receptor |
1 |
| Heme transporter BhuA |
5 |
| Heme/hemopexin utilization protein C |
3 |
| Hemin receptor |
2 |
| Hemoglobin and hemoglobin-haptoglobin-binding protein |
1 |
| Hemoglobin and hemoglobin-haptoglobin-binding protein A |
1 |
| Hemoglobin and hemoglobin-haptoglobin-binding protein B |
2 |
| Hemoglobin and hemoglobin-haptoglobin-binding protein C |
1 |
| Hemoglobin-binding protein A |
1 |
| Hemoglobin-binding protein C |
1 |
| Hemoglobin-haptoglobin utilization protein B |
2 |
| Hemoglobin-haptoglobin-binding protein A |
1 |
| Hemophilin receptor |
1 |
| Iron-regulated outer membrane virulence protein |
2 |
| Lactoferrin-binding protein A |
2 |
| Pesticin receptor |
3 |
| Probable TonB-dependent receptor HI_1217 |
1 |
| Probable TonB-dependent receptor NMB1497 |
1 |
| Probable TonB-dependent siderophore receptor PirA |
1 |
| Probable TonB-dependent siderophore receptor PiuA |
1 |
| Probable hemoglobin and hemoglobin-haptoglobin-binding protein 1 |
1 |
| Probable hemoglobin and hemoglobin-haptoglobin-binding protein 2 |
1 |
| Probable hemoglobin and hemoglobin-haptoglobin-binding protein 3 |
1 |
| Probable hemoglobin and hemoglobin-haptoglobin-binding protein 4 |
1 |
| Schizokinen transporter SchT |
1 |
| TonB-dependent heme receptor A |
3 |
| Transferrin-binding protein A |
5 |
| Vitamin B12 transporter BtuB |
36 |
