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An NMR study elucidating the binding of Mg(II) and Mn(II) to spinach plastocyanin. Regulation of the binding of plastocyanin to subunit PsaF of photosystem I

Farkas, D.; Hansson, O.; Biochim. Biophys. Acta 1807, 1539-1548 (2011)

Data extracted from this reference:

Localization
EC Number
Localization
Commentary
Organism
GeneOntology No.
Textmining
Metals/Ions
EC Number
Metals/Ions
Commentary
Organism
Structure
1.97.1.12
Mg2+
variations in the luminal Mg(II) concentration may modulate the binding between plastocyanin and photosystem I subunit PsaF during the light-dark transitions, being stronger in the illuminated state. The Mg(II) ion probably is bound close to Glu43 in the lower acidic patch, and most likely in the form of a hexaquo complex embedded within the hydration shell of plastocanin, suggesting a specific binding site for Mg(II) that may regulate the binding of plastocyanin to photosystem 1 in vivo
Spinacia oleracea
Organism
EC Number
Organism
Primary Accession No. (UniProt)
Commentary
Textmining
1.97.1.12
Spinacia oleracea
-
-
-
Substrates and Products (Substrate)
EC Number
Substrates
Commentary Substrates
Literature (Substrates)
Organism
Products
Commentary (Products)
Literature (Products)
Organism (Products)
Reversibility
1.97.1.12
reduced plastocyanin + oxidized ferredoxin + hv
variations in the luminal Mg(II) concentration may modulate the binding between plastocyanin and photosystem I subunit PsaF during the light-dark transitions, being stronger in the illuminated state
727068
Spinacia oleracea
oxidized plastocyanin + reduced ferredoxin
-
-
-
?
Localization (protein specific)
EC Number
Localization
Commentary
Organism
GeneOntology No.
Textmining
Metals/Ions (protein specific)
EC Number
Metals/Ions
Commentary
Organism
Structure
1.97.1.12
Mg2+
variations in the luminal Mg(II) concentration may modulate the binding between plastocyanin and photosystem I subunit PsaF during the light-dark transitions, being stronger in the illuminated state. The Mg(II) ion probably is bound close to Glu43 in the lower acidic patch, and most likely in the form of a hexaquo complex embedded within the hydration shell of plastocanin, suggesting a specific binding site for Mg(II) that may regulate the binding of plastocyanin to photosystem 1 in vivo
Spinacia oleracea
Substrates and Products (Substrate) (protein specific)
EC Number
Substrates
Commentary Substrates
Literature (Substrates)
Organism
Products
Commentary (Products)
Literature (Products)
Organism (Products)
Reversibility
1.97.1.12
reduced plastocyanin + oxidized ferredoxin + hv
variations in the luminal Mg(II) concentration may modulate the binding between plastocyanin and photosystem I subunit PsaF during the light-dark transitions, being stronger in the illuminated state
727068
Spinacia oleracea
oxidized plastocyanin + reduced ferredoxin
-
-
-
?