Putative sigma-70 factor, ECF subfamily; FecI: belongs to the extracytoplasmic-function (ECF) sigma factor, which represent a subgroup of the sigma 70 family. The sigma factor is an initiation factor that promotes attachment of the RNA polymerase to specific initiation sites and then is released. Involved in iron metabolism; High confidence in function and specificity.

Periplasmic biopolymer transport protein linking inner and outer membranes; Interacts with outer membrane receptor proteins that carry out high-affinity binding and energy dependent uptake into the periplasmic space of specific substrates. It could act to transduce energy from the cytoplasmic membrane to specific energy-requiring processes in the outer membrane, resulting in the release into the periplasm of ligands bound by these outer membrane proteins. Belongs to the TonB family.

Probable FecR-like transmembrane sensor involved in iron metabolism. FecR is involved in regulation of iron dicitrate transport. In the absence of citrate FecR inactivates FecI. FecR is probably a sensor that recognizes iron dicitrate in the periplasm; High confidence in function and specificity.

Conserved hypothetical membrane protein. Homology to an orf of Rubrivivax gelatinosus of 55% (gi|47575633|ref|ZP_00245668.1|(NBCI ENTREZ)). No domains predicted. No signal peptide. 1 TMHs; Conserved hypothetical protein.

Conserved hypothetical membrane protein. Homology to tolA of N. europaea of 39% (trembl|Q82XP0). no domains predicted InterPro: Proline-rich region (IPR000694) no signal peptide 1 TMHs; Conserved hypothetical protein.

Putative TonB protein. Homology to tonb2 of P. aeruginosa of 39% (TREMBL:Q9RMT3). To complete transport of bound iron across the inner membrane, a second receptor complex is needed. The major component of this is tonB, a 27kDa protein that facilitates energy transfer from the proton motive force to outer receptors Pfam: Gram-negative bacterial TonB protein no signal peptide 1 TMH; Function unclear.

Conserved hypothetical secreted protein. Homology to ne1626 of N. europaea of 46% (trembl|Q82U75) no domains predicted signal peptide TMH in signal peptide; Conserved hypothetical protein.

Putative TonB-denpendent receptor; Similar to FepA, an iron regulated outer membrane protein. FepA is a receptor for the siderophore complex ferric enterobactin and for colcins B and D. INVOLVED IN THE INITIAL STEP OF IRON UPTAKE BY BINDING FERRIC ENTEROBACTIN THAT ALLOWS E. COLI TO EXTRACT IRON FROM THE ENVIRONMENT. ilvC: ketol-acid reductoisomerase; Function unclear.

Putative TonB-dependent receptor; Similar to FecA, ferric-citrate outer membrane receptor in E.coli, involved in the recognition and internalization of ferric-citrate. InterPro: TonB-dependent receptor protein; Function unclear.