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Literature summary for 1.97.1.12 extracted from

  • Bernal-Bayard, P.; Pallara, C.; Carmen Castell, M.; Molina-Heredia, F.; Fernandez-Recio, J.; Hervas, M.; Navarro, J.
    Interaction of photosystem I from Phaeodactylum tricornutum with plastocyanins as compared with its native cytochrome c6 reunion with a lost donor (2015), Biochim. Biophys. Acta, 1847, 1549-1559 .
    View publication on PubMed

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
additional information kinetic analysis of cytochrome c6 and different plastocyanins as electron donor cofactors, detailed overview Phaeodactylum tricornutum

Localization

Localization Comment Organism GeneOntology No. Textmining

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
reduced cytochrome c6 + oxidized ferredoxin + hv Phaeodactylum tricornutum
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oxidized cytochrome c6 + reduced ferredoxin
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?

Organism

Organism UniProt Comment Textmining
Phaeodactylum tricornutum
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-
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
additional information in the Phaeodactylum tricornutum alga, as inmost diatoms, cytochrome c6 is the only electron donor to photosystem I, and thus they lack plastocyanin as an alternative electron carrier. Analysis of electron transfer to Phaeodactylum photosystem I from several plastocyanins from cyanobacteria, green algae and plants, as compared with its own cytochrome c6, overview. Diatom photosystem I is able to effectively react with eukaryotic acidic plastocyanins, although with less efficiency than with Phaeodactylum cytochrome c6. This efficiency increases in some green alga plastocyanin mutants mimicking the electrostatics of the interaction site on the diatom cytochrome. In addition, the structure of the transient electron transfer complex between cytochrome c6 and photosystem I from Phaeodactylum is analyzed by computational docking and compared to that of green lineage and mixed systems. The Phaeodactylum system shows a lower efficiency than the green systems, both in the formation of the properly arranged [cytochrome c6-photosystem I] complex and in the electron transfer itself. Structural modeling, overview Phaeodactylum tricornutum ?
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?
reduced cytochrome c6 + oxidized ferredoxin + hv
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Phaeodactylum tricornutum oxidized cytochrome c6 + reduced ferredoxin
-
?
reduced plastocyanin + oxidized ferredoxin + hv plastocyanins from Nostoc sp. PCC 7119, Monoraphidium braunii, Arabidopsis thaliana, Spinacia oleracea, and wild-type and mutant (E85K, Q88R, E85K/Q88R, E85V, and V93K) plastocyanins from Chlamydomonas reinhardtii, docking simulations and modeling Phaeodactylum tricornutum oxidized plastocyanin + reduced ferredoxin
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?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.5
-
assay at Phaeodactylum tricornutum

General Information

General Information Comment Organism
additional information cytochrome c6 in the Phaeodactylum tricornutum alga, as inmost diatoms, is the only electron donor to photosystem I, and thus they lack plastocyanin as an alternative electron carrier Phaeodactylum tricornutum