Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

 
 
DownloadE-Mail
  Function of two β−carotenes near the D1 and D2 proteins in photosystem II dimers

Ishikita, H., Loll, B., Biesiadka, J., Kern, J., Irrgang, K., Zouni, A., et al. (2007). Function of two β−carotenes near the D1 and D2 proteins in photosystem II dimers. Biochimica et Biophysica Acta-Bioenergetics, 1767(1), 79-87. doi:10.1016/j.bbabio.2006.10.006.

Item is

Basisdaten

einblenden: ausblenden:
Genre: Zeitschriftenartikel
Alternativer Titel : Function of two β−carotenes near the D1 and D2 proteins in photosystem II dimers

Dateien

einblenden: Dateien
ausblenden: Dateien
:
BBA_1767_2007_79.pdf (beliebiger Volltext), 755KB
 
Datei-Permalink:
-
Name:
BBA_1767_2007_79.pdf
Beschreibung:
-
OA-Status:
Sichtbarkeit:
Eingeschränkt (Max Planck Institute for Medical Research, MHMF; )
MIME-Typ / Prüfsumme:
application/pdf
Technische Metadaten:
Copyright Datum:
-
Copyright Info:
-
Lizenz:
-

Externe Referenzen

einblenden:
ausblenden:
Beschreibung:
-
OA-Status:
externe Referenz:
http://dx.doi.org/10.1016/j.bbabio.2006.10.006 (beliebiger Volltext)
Beschreibung:
-
OA-Status:

Urheber

einblenden:
ausblenden:
 Urheber:
Ishikita, H., Autor
Loll, Bernhard1, Autor           
Biesiadka, Jacek, Autor
Kern, Jana2, Autor           
Irrgang, Klaus−Dieter, Autor
Zouni, Athina, Autor
Saenger, Wolfram, Autor
Knapp, E. W., Autor
Affiliations:
1Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society, ou_1497700              
2Department of Biomedical Optics, Max Planck Institute for Medical Research, Max Planck Society, ou_1497699              

Inhalt

einblenden:
ausblenden:
Schlagwörter: Photosystem II; Chlorophyll; β−carotene; Photoprotection; Electron transfer; Redox potential
 Zusammenfassung: The antenna proteins in photosystem II (PSII) not only promote energy transfer to the photosynthetic reaction center (RC) but provide also an efficient cation sink to re-reduce chlorophyll a if the electron transfer (ET) from the Mn-cluster is inhibited. Using the newest PSII dimer crystal structure (3.0 Å resolution), in which 11 β-carotene molecules (Car) and 14 lipids are visible in the PSII monomer, we calculated the redox potentials (Em) of one-electron oxidation for all Car (Em(Car)) by solving the Poisson–Boltzmann equation. In each PSII monomer, the D1 protein harbors a previously unlocated Car (CarD1) in van der Waals contact with the chlorin ring of ChlZ(D1). Each CarD1 in the PSII dimer complex is located in the interface between the D1 and CP47 subunits, together with another four Car of the other PSII monomer and several lipid molecules. The proximity of Car bridging between CarD1 and plastoquinone/QA may imply a direct charge recombination of Car+QA−. The calculated Em(CarD1) and Em(ChlZ(D1)) are, respectively, 83 and 126 mV higher than Em(CarD2) and Em(ChlZ(D2)), which could explain why CarD2+ and ChlZ(D2)+ are observed rather than the corresponding CarD1+ and ChlZ(D1)+.

Details

einblenden:
ausblenden:
Sprache(n): eng - English
 Datum: 2006-10-112006-08-102006-10-122006-10-182007-01-01
 Publikationsstatus: Erschienen
 Seiten: 9
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Art des Abschluß: -

Veranstaltung

einblenden:

Entscheidung

einblenden:

Projektinformation

einblenden:

Quelle 1

einblenden:
ausblenden:
Titel: Biochimica et Biophysica Acta-Bioenergetics
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Amsterdam : Elsevier
Seiten: - Band / Heft: 1767 (1) Artikelnummer: - Start- / Endseite: 79 - 87 Identifikator: ISSN: 0005-2728
CoNE: https://pure.mpg.de/cone/journals/resource/954926938702_6