AN ELECTROGENIC REACTION ASSOCIATED WITH THE REREDUCTION OF P680 BY TYR-Z IN PHOTOSYSTEM-II

Authors
POKORNY A WULF K TRISSL HW
Citation
A. Pokorny et al., AN ELECTROGENIC REACTION ASSOCIATED WITH THE REREDUCTION OF P680 BY TYR-Z IN PHOTOSYSTEM-II, Biochimica et biophysica acta. Bioenergetics, 1184(1), 1994, pp. 65-70
Citations number
44
Categorie Soggetti
Biology,Biophysics
Journal title
Biochimica et biophysica acta. Bioenergetics → ACNP
ISSN journal
00052728
Volume
1184
Issue
1
Year of publication
1994
Pages
65 - 70
Database
ISI
SICI code
0005-2728(1994)1184:1<65:AERAWT>2.0.ZU;2-L
Abstract
The location of tyrosine Z (D1 Tyr-161), the immediate donor to photoo xidized 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 a ttributed to the electron transfer between Tyr Z and P680. The result is discussed in the light of current structural models.