Gdp-mannose pyrophosphatase nudk; Nucleoside diphosphate sugar hydrolase that hydrolyzes GDP- mannose as its preferred substrate, yielding GMP and mannose-1- phosphate. Can also hydrolyze the pyrophosphate bond of other sugar nucleotides such as IDP-ribose, GDP-glucose, and to a lesser extent, ADP-ribose, ADP-glucose and UDP-glucose. Shows no activity toward Nudix substrates FAD, CDP-ethanolamine, CDP-choline, NAD(+), diadenosine pentaphosphate, GTP, UTP, ATP, or CTP

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

Dihydropyrimidine dehydrogenase, nadh-dependent, subunit c; Involved in pyrimidine base degradation. Catalyzes physiologically the reduction of uracil to 5,6-dihydrouracil (DHU) by using NADH as a specific cosubstrate. It also catalyzes the reverse reaction and the reduction of thymine to 5,6-dihydrothymine (DHT)

Nadh:ubiquinone oxidoreductase, fused cd subunit; NDH-1 shuttles electrons from NADH, via FMN and iron-sulfur (Fe-S) centers, to quinones in the respiratory chain. The immediate electron acceptor for the enzyme in this species is believed to be ubiquinone. Couples the redox reaction to proton translocation (for every two electrons transferred, four hydrogen ions are translocated across the cytoplasmic membrane), and thus conserves the redox energy in a proton gradient

Two-component system, narl family, nitrate/nitrite sensor histidine kinase narq; Acts as a sensor for nitrate/nitrite and transduces signal of nitrate/nitrite availability to the NarL/NarP proteins. NarQ probably activates NarL and NarP by phosphorylation. NarQ probably negatively regulates the NarL protein by dephosphorylation

Ferredoxin-type protein, role in electron transfer to periplasmic nitrate reductase napa; Could be involved in the maturation of NapA, the catalytic subunit of the periplasmic nitrate reductase, before its export into the periplasm . Is not involved in the electron transfer from menaquinol or ubiquinol to the periplasmic nitrate reductase

Hu, dna-binding transcriptional regulator, alpha subunit; Histone-like DNA-binding protein which is capable of wrapping DNA to stabilize it, and thus to prevent its denaturation under extreme environmental conditions

[2Fe-2S] ferredoxin; Ferredoxin are iron-sulfur proteins that transfer electrons in a wide variety of metabolic reactions. Although the function of this ferredoxin is unknown it is probable that it has a role as a cellular electron transfer protein. Involved in the in vivo assembly of the Fe-S clusters in a wide variety of iron-sulfur proteins

Sugar phosphate phosphatase; Catalyzes the dephosphorylation of different sugar phosphates including erythrose-4-phosphate (Ery4P), ribose-5-phosphate (Ribu5P), fructose-1-phosphate (Fru1P), fructose-6-phosphate (Fru6P), glucose-6-P (Glu6P), and also imidodiphosphate (Imido-di-P) and acetyl phosphate (Acetyl-P). Selectively hydrolyzes alpha-D-glucose-1-phosphate (Glu1P) and has no activity with the beta form