Quinone (ECMDB23060) (M2MDB003450)

General function:

Involved in electron carrier activity

Specific function:

Two distinct, membrane-bound, FAD-containing enzymes are responsible for the catalysis of fumarate and succinate interconversion; the fumarate reductase is used in anaerobic growth, and the succinate dehydrogenase is used in aerobic growth

Gene Name:

frdA

Uniprot ID:

P00363

Molecular weight:

65971

Reactions

General function:

Involved in electron carrier activity

Specific function:

Two distinct, membrane-bound, FAD-containing enzymes are responsible for the catalysis of fumarate and succinate interconversion; the fumarate reductase is used in anaerobic growth, and the succinate dehydrogenase is used in aerobic growth

Gene Name:

sdhB

Uniprot ID:

P07014

Molecular weight:

26770

Reactions

General function:

Involved in oxidoreductase activity

Specific function:

Oxidizes proline to glutamate for use as a carbon and nitrogen source and also function as a transcriptional repressor of the put operon

Gene Name:

putA

Uniprot ID:

P09546

Molecular weight:

143814

Reactions

General function:

Involved in D-amino-acid dehydrogenase activity

Specific function:

Oxidative deamination of D-amino acids

Gene Name:

dadA

Uniprot ID:

P0A6J5

Molecular weight:

47607

Reactions

General function:

Involved in catalytic activity

Specific function:

(S)-dihydroorotate + a quinone = orotate + a quinol

Gene Name:

pyrD

Uniprot ID:

P0A7E1

Molecular weight:

36774

Reactions

General function:

Energy production and conversion

Specific function:

Seems to be involved in the anchoring of the catalytic components of the fumarate reductase complex to the cytoplasmic membrane

Gene Name:

frdC

Uniprot ID:

P0A8Q0

Molecular weight:

15015

General function:

Involved in fumarate metabolic process

Specific function:

Seems to be involved in the anchoring of the catalytic components of the fumarate reductase complex to the cytoplasmic membrane

Gene Name:

frdD

Uniprot ID:

P0A8Q3

Molecular weight:

13107

General function:

Involved in electron carrier activity

Specific function:

Two distinct, membrane-bound, FAD-containing enzymes are responsible for the catalysis of fumarate and succinate interconversion; the fumarate reductase is used in anaerobic growth, and the succinate dehydrogenase is used in aerobic growth

Gene Name:

sdhA

Uniprot ID:

P0AC41

Molecular weight:

64421

Reactions

General function:

Involved in succinate dehydrogenase activity

Specific function:

Membrane-anchoring subunit of succinate dehydrogenase (SDH)

Gene Name:

sdhD

Uniprot ID:

P0AC44

Molecular weight:

12867

General function:

Involved in electron carrier activity

Specific function:

Two distinct, membrane-bound, FAD-containing enzymes are responsible for the catalysis of fumarate and succinate interconversion; the fumarate reductase is used in anaerobic growth, and the succinate dehydrogenase is used in aerobic growth

Gene Name:

frdB

Uniprot ID:

P0AC47

Molecular weight:

27123

Reactions

General function:

Involved in oxidoreductase activity, acting on NADH or NADPH

Specific function:

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

Gene Name:

nuoA

Uniprot ID:

P0AFC3

Molecular weight:

16457

Reactions

General function:

Involved in NADH dehydrogenase (ubiquinone) activity

Specific function:

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 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

Gene Name:

nuoB

Uniprot ID:

P0AFC7

Molecular weight:

25056

Reactions

General function:

Involved in oxidoreductase activity

Specific function:

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

Gene Name:

nuoE

Uniprot ID:

P0AFD1

Molecular weight:

18590

Reactions

General function:

Involved in oxidation-reduction process

Specific function:

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. This subunit may bind ubiquinone

Gene Name:

nuoH

Uniprot ID:

P0AFD4

Molecular weight:

36219

Reactions

General function:

Involved in electron carrier activity

Specific function:

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

Gene Name:

nuoI

Uniprot ID:

P0AFD6

Molecular weight:

20538

Reactions

General function:

Involved in NADH dehydrogenase (ubiquinone) activity

Specific function:

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

Gene Name:

nuoJ

Uniprot ID:

P0AFE0

Molecular weight:

19874

Reactions

General function:

Involved in oxidoreductase activity, acting on NADH or NADPH

Specific function:

There are 2 NADH dehydrogenases in E.coli, however only this complex is able to use dNADH (reduced nicotinamide hypoxanthine dinucleotide, deamino-NADH) and dNADH-DB (dimethoxy- 5-methyl-6-decyl-1,4-benzoquinone) as substrates

Gene Name:

nuoK

Uniprot ID:

P0AFE4

Molecular weight:

10845

Reactions

General function:

Involved in NADH dehydrogenase (ubiquinone) activity

Specific function:

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

Gene Name:

nuoM

Uniprot ID:

P0AFE8

Molecular weight:

56524

Reactions

General function:

Involved in NADH dehydrogenase (ubiquinone) activity

Specific function:

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

Gene Name:

nuoN

Uniprot ID:

P0AFF0

Molecular weight:

52044

Reactions

General function:

Involved in zinc ion binding

Specific function:

NADPH + 2 quinone = NADP(+) + 2 semiquinone

Gene Name:

qorA

Uniprot ID:

P28304

Molecular weight:

35172

Reactions

General function:

Involved in NADH dehydrogenase (ubiquinone) activity

Specific function:

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

Gene Name:

nuoF

Uniprot ID:

P31979

Molecular weight:

49292

Reactions

General function:

Involved in oxidoreductase activity, acting on NADH or NADPH

Specific function:

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

Gene Name:

nuoC

Uniprot ID:

P33599

Molecular weight:

68236

Reactions

General function:

Involved in electron carrier activity

Specific function:

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

Gene Name:

nuoG

Uniprot ID:

P33602

Molecular weight:

100298

Reactions

General function:

Involved in NADH dehydrogenase (ubiquinone) activity

Specific function:

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

Gene Name:

nuoL

Uniprot ID:

P33607

Molecular weight:

66438

Reactions

General function:

Involved in malate dehydrogenase (quinone) activity

Specific function:

(S)-malate + a quinone = oxaloacetate + reduced quinone

Gene Name:

mqo

Uniprot ID:

P33940

Molecular weight:

60229

Reactions

General function:

Involved in succinate dehydrogenase activity

Specific function:

Membrane-anchoring subunit of succinate dehydrogenase (SDH)

Gene Name:

sdhC

Uniprot ID:

P69054

Molecular weight:

14299