AN ELECTROGENIC REACTION ASSOCIATED WITH THE REREDUCTION OF P680 BY TYR-Z IN PHOTOSYSTEM-II
| Autor(en): | POKORNY, A WULF, K TRISSL, HW |
Stichwörter: | Biochemistry & Molecular Biology; Biophysics; COMPLEX; KINETICS; LOCATION; OXYGEN-EVOLVING SYSTEM; PHOTOSYNTHESIS; PHOTOSYNTHETIC REACTION-CENTER; PHOTOSYSTEM II; PHOTOVOLTAGE; PROTEIN; RHODOPSEUDOMONAS-VIRIDIS; SINGLE FLASHES; THYLAKOID MEMBRANE; TYROSINE Z; WATER OXIDATION | Erscheinungsdatum: | 1994 | Herausgeber: | ELSEVIER SCIENCE BV | Journal: | BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS | Volumen: | 1184 | Ausgabe: | 1 | Startseite: | 65 | Seitenende: | 70 | Zusammenfassung: | The location of tyrosine Z (D1 Tyr-161), the immediate donor to photooxidized P680, has been probed using a fast photovoltage technique. We found an electrogenic reaction with an amplitude of 16% of the charge separated state P680(+)Q(A)(-) and a time constant of 29 ns which is attributed to the electron transfer between Tyr Z and P680. The result is discussed in the light of current structural models. |
ISSN: | 00052728 | DOI: | 10.1016/0005-2728(94)90154-6 |
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geprüft am 29.05.2024
