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Literature summary extracted from

  • Schlegel, K.; Welte, C.; Deppenmeier, U.; Mueller, V.
    Electron transport during aceticlastic methanogenesis by Methanosarcina acetivorans involves a sodium-translocating Rnf complex (2012), FEBS J., 279, 4444-4452.
    View publication on PubMed

Activating Compound

EC Number Activating Compound Comment Organism Structure
7.2.1.2 valinomycin in combination with K+, Na+ transport is stimulated slightly Methanosarcina acetivorans

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
7.2.1.2 membrane
-
 Methanosarcina acetivorans 16020
-

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
7.2.1.2 K+ KCl itself has no effect on Na+ transport, in combination with valinomycin Na+ transport is stimulated slightly Methanosarcina acetivorans

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
7.2.1.2 2 reduced ferredoxin [iron-sulfur] cluster + NAD+ + H+ + Na+[side 1] Methanosarcina acetivorans
-
 2 oxidized ferredoxin [iron-sulfur] cluster + NADH + Na+[side 2]
-
 ?

Organism

EC Number Organism UniProt Comment Textmining
7.2.1.2 Methanosarcina acetivorans
-
-
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
7.2.1.2 2 reduced ferredoxin [iron-sulfur] cluster + NAD+ + H+ + Na+[side 1]
-
 Methanosarcina acetivorans 2 oxidized ferredoxin [iron-sulfur] cluster + NADH + Na+[side 2]
-
 ?
7.2.1.2 2 reduced ferredoxin [iron-sulfur] cluster + NAD+ + H+ + Na+[side 1] Na+ transport is directly linked to ferredoxin:NAD+ oxidoreductase activity and is electrogenic Methanosarcina acetivorans 2 oxidized ferredoxin [iron-sulfur] cluster + NADH + Na+[side 2]
-
 ?
7.2.1.2 additional information inside-out membrane vesicles of catalyze Na+ transport coupled to an electron transport catalyzed by theferredoxin:heterodisulfide oxidoreductase activity Methanosarcina acetivorans ?
-
 ?

Synonyms

EC Number Synonyms Comment Organism
7.2.1.2 ferredoxin:heterodisulfide oxidoreductase
-
 Methanosarcina acetivorans
7.2.1.2 Fno
-
 Methanosarcina acetivorans
7.2.1.2 Rnf complex
-
 Methanosarcina acetivorans
7.2.1.2 sodium motive ferredoxin:NAD+ oxidoreductase
-
 Methanosarcina acetivorans

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
7.2.1.2 7
-
 assay at Methanosarcina acetivorans

Cofactor

EC Number Cofactor Comment Organism Structure
7.2.1.2 Ferredoxin
-
 Methanosarcina acetivorans
7.2.1.2 NAD+
-
 Methanosarcina acetivorans

General Information

EC Number General Information Comment Organism
7.2.1.2 metabolism methanogenesis from acetate by Methanosarcina acetivorans involves an anaerobic electron transport chain with ferredoxin as electron donor and heterodisulfide as electron acceptor. Proposed model of the aceticlastic pathway of methanogenesis in Methanosarcina acetivorans, overview Methanosarcina acetivorans
7.2.1.2 physiological function the Rnf complex is a multi-subunit membrane-bound electron transport protein complex that is assumed to couple ferredoxin-dependent NAD+ reduction in bacteria with the translocation of ions across the cytoplasmic membrane. The electron transport during aceticlastic methanogenesis by Methanosarcina acetivorans involves a sodium-translocating Rnf complex, overview Methanosarcina acetivorans