Putative iron-siderophore ABC transporter (binding lipoprotein); Part of the ABC transporter complex YclNOPQ involved in uptake of ferric-petrobactin. Petrobactin is a photoreactive 3,4- catecholate siderophore produced by many members of the B.cereus group, including B.anthracis. Binds selectively iron-free and ferric petrobactin and the petrobactin precursor 3,4-dihydroxybenzoic acid (3,4-DHB); Belongs to the bacterial solute-binding protein 8 family.

Pantothenate kinase; Catalyzes the phosphorylation of pantothenate (Pan), the first step in CoA biosynthesis. Cannot utilize a phosphoryl donor other than ATP; Belongs to the type III pantothenate kinase family.

Putative iron(III) dicitrate-binding lipoprotein; Evidence 3: Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; putative transporter; Belongs to the bacterial solute-binding protein 8 family.

Cysteine synthase; Catalyzes the conversion of O-acetylserine to cysteine. Also acts as a sensor of cysteine availability in the signal transduction pathway modulating CymR activity. When cysteine is present, the pool of O-acetylserine (OAS) is low, which leads to the formation of a CymR- CysK complex and transcriptional repression of the CymR regulon occurs. In the absence of cysteine, the OAS pool is high and the CymR-CysK complex is mostly dissociated, leading to a faster dissociation of CymR from its DNA targets and the lifting of CymR-dependent repression.

Putative iron(III) dicitrate transporter binding lipoprotein; Part of the ABC transporter complex YfiYZ/YfhA/YusV involved in import of the iron-hydroxamate siderophores schizokinen, arthrobactin and corprogen. Binds the siderophores and delivers them to the surface of YfiZ/YfhA (Probable).

Cell-division protein and general stress protein (class III heat-shock); Acts as a processive, ATP-dependent zinc metallopeptidase for both cytoplasmic and membrane proteins. Plays a role in the quality control of integral membrane proteins; In the central section; belongs to the AAA ATPase family.

Protein-export membrane protein; Required for efficient translocation of secretory pre- proteins under conditions of hypersecretion but is not required for the release of mature proteins from the membrane. In the N-terminal section; belongs to the SecD/SecF family. SecD subfamily.

Peptidyl-prolyl isomerase; PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides; Belongs to the cyclophilin-type PPIase family.

Molecular chaperone; Can suppress growth and secretion defects in E.coli secA and secB mutants. Probably a molecular chaperone for exported proteins or may act by stabilizing the SecA protein.