GTP hydrolase involved in nickel liganding into hydrogenases; Involved in the maturation of [NiFe] hydrogenases. Required for nickel insertion into the metal center of the hydrogenase. Exhibits a low intrinsic GTPase activity, which is essential for nickel insertion. In the presence of GDP, nickel, but not zinc, is transferred from the HypB GTPase domain (G-domain) to HypA. Belongs to the SIMIBI class G3E GTPase family. HypB/HupM subfamily.

Hydrogenase maturation protein; Involved in the maturation of [NiFe] hydrogenases. Involved in the biosynthesis of the Fe(CN)(2)CO cofactor. HypD may act as a scaffold on which the Fe(CN)(2)CO cofactor is formed. In complex with HypC, accepts the cyanide ligand generated by HypF and HypE, and also coordinates the carbon monoxide ligand. Required for the formation of all three hydrogenase isoenzymes (Probable).

Zn-dependent periplasmic chaperone; Binds zinc. Could be an important component of the zinc- balancing mechanism; Belongs to the ZraP family.

RNA polymerase, sigma 54 (sigma N) factor; Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. This sigma factor is responsible for the expression of enzymes involved in arginine catabolism. The open complex (sigma-54 and core RNA polymerase) serves as the receptor for the receipt of the melting signal from the remotely bound activator protein GlnG(NtrC).

Sensory histidine kinase in two-component regulatory system with GlnG; Member of the two-component regulatory system NtrB/NtrC, which controls expression of the nitrogen-regulated (ntr) genes in response to nitrogen limitation. Under conditions of nitrogen limitation, NtrB autophosphorylates and transfers the phosphoryl group to NtrC. In the presence of nitrogen, acts as a phosphatase that dephosphorylates and inactivates NtrC.

Chemotaxis protein CheA; Involved in the transmission of sensory signals from the chemoreceptors to the flagellar motors. CheA is autophosphorylated; it can transfer its phosphate group to either CheB or CheY.

Tyrosine lyase, involved in thiamine-thiazole moiety synthesis; Catalyzes the radical-mediated cleavage of tyrosine to 2- iminoacetate and 4-cresol.

Pyruvate-flavodoxin oxidoreductase; Oxidoreductase required for the transfer of electrons from pyruvate to flavodoxin.

Flagellar motor switching and energizing component; FliM is one of three proteins (FliG, FliN, FliM) that forms the rotor-mounted switch complex (C ring), located at the base of the basal body. This complex interacts with the CheY and CheZ chemotaxis proteins, in addition to contacting components of the motor that determine the direction of flagellar rotation.