Trk system potassium uptake protein TrkH; Low-affinity potassium transport system. Interacts with Trk system potassium uptake protein TrkA; Belongs to the TrkH potassium transport family.

Potassium uptake transporter, transmembrane component, TrkH; COG0168 Trk-type K+ transport systems, membrane components.

Nitrogen regulation protein ntrY; COG5000 Signal transduction histidine kinase involved in nitrogen fixation and metabolism regulation.

GTP-binding protein HflX; GTPase that associates with the 50S ribosomal subunit and may have a role during protein synthesis or ribosome biogenesis. Belongs to the TRAFAC class OBG-HflX-like GTPase superfamily. HflX GTPase family.

Nitrogen assimilation regulatory protein NtrX; COG2204 Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains.

NAD(+) synthase; Catalyzes the ATP-dependent amidation of deamido-NAD to form NAD. Uses L-glutamine as a nitrogen source.

Nitrogen regulation protein NtrB; COG3852 Signal transduction histidine kinase, nitrogen specific.

tRNA-dihydrouridine synthase, putative; Catalyzes the synthesis of 5,6-dihydrouridine (D), a modified base found in the D-loop of most tRNAs, via the reduction of the C5-C6 double bond in target uridines; Belongs to the dus family.

RNA-binding protein Hfq; RNA chaperone that binds small regulatory RNA (sRNAs) and mRNAs to facilitate mRNA translational regulation in response to envelope stress, environmental stress and changes in metabolite concentrations. Also binds with high specificity to tRNAs. Belongs to the Hfq family.