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Literature summary extracted from

  • Bojko, M.; Kruk, J.; Wieckowski, S.
    Plastoquinones are effectively reduced by ferredoxin:NADP+ oxidoreductase in the presence of sodium cholate micelles. Significance for cyclic electron transport and chlororespiration (2003), Phytochemistry, 64, 1055-1060.
    View publication on PubMed

Activating Compound

EC Number Activating Compound Comment Organism Structure
1.18.1.2 Ferredoxin highly stimulates NADPH oxidation Spinacia oleracea
1.18.1.2 sodium cholate stimulated NADPH oxidation, especially in presence of plastoquinone substrate Spinacia oleracea

Inhibitors

EC Number Inhibitors Comment Organism Structure
1.18.1.2 Mg2+ inhibits reduction of plastoquinone incorporated into sodium cholate micelles Spinacia oleracea
1.18.1.2 myristyltrimethylammonium bromide inhibits reduction of plastoquinone almost completely at 15 mM Spinacia oleracea
1.18.1.2 octylglucoside inhibits reduction of plastoquinone Spinacia oleracea
1.18.1.2 SDS inhibits reduction of plastoquinone almost completely at 15 mM Spinacia oleracea
1.18.1.2 Triton X-100 inhibits reduction of plastoquinone Spinacia oleracea

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
1.18.1.2 thylakoid membrane
-
 Spinacia oleracea 42651
-

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
1.18.1.2 additional information Spinacia oleracea enzyme is involved in cyclic electron transport and chlororespiration ?
-
 ?

Organism

EC Number Organism UniProt Comment Textmining
1.18.1.2 Spinacia oleracea
-
-
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.18.1.2 additional information enzyme is involved in cyclic electron transport and chlororespiration Spinacia oleracea ?
-
 ?
1.18.1.2 plastoquinone + NADPH plastoquinones with different length of side chains from spinach, preference for short chain substrate, reaction proceeds via a FMN and a semiquinone intermediate, incorporation of the substrate into sodium cholate micelles is required for activity, micelles structure scheme Spinacia oleracea ? + NADP+
-
 ?

Cofactor

EC Number Cofactor Comment Organism Structure
1.18.1.2 FMN
-
 Spinacia oleracea
1.18.1.2 NADPH
-
 Spinacia oleracea