Zobrazeno 1 - 10
of 99
pro vyhledávání: '"Horst Tobias Witt"'
Autor:
Wulf Hofbauer, Jan Kern, Peter Orth, Horst Tobias Witt, Wolfgang Lubitz, Robert Bittl, Athina Zouni, Friedhelm Lendzian, Petra Fromme
Publikováno v:
Proceedings of the National Academy of Sciences. 98:6623-6628
Electron paramagnetic resonance (EPR) spectroscopy at 94 GHz is used to study the dark-stable tyrosine radical Y \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \u
Publikováno v:
The Journal of Physical Chemistry B. 105:1225-1239
The primary donor in single crystals of photosystem I (PS I) obtained from the thermophilic cyanobacterium Synechococcus elongatus is investigated by EPR and ENDOR techniques. The cation radical was generated chemically or photolytically in the singl
Autor:
Horst Tobias Witt, Eberhard Schlodder
Publikováno v:
Journal of Biological Chemistry. 274:30387-30392
The catalytic center (CC) of water oxidation in photosystem II passes through four stepwise increased oxidized states (S0–S4) before O2 evolution takes place from 2H2O in the S4 → S0 transition. The pattern of the release of the four protons from
Autor:
Wolfram Saenger, Wolf-Dieter Schubert, Petra Fromme, Patrick Jordan, Horst Tobias Witt, Norbert Krauß, Olaf Klukas
Publikováno v:
Journal of Biological Chemistry. 274:7361-7367
An improved electron density map of photosystem I from Synechococcus elongatus calculated at 4-A resolution for the first time reveals a second phylloquinone molecule and thereby completes the set of cofactors constituting the electron transfer syste
Autor:
Horst Tobias Witt, Andreas Kamlowski, Stephan G. Zech, Dietmar Stehlik, Wolfgang Lubitz, Robert Bittl, Petra Fromme
Publikováno v:
The Journal of Physical Chemistry B. 102:8266-8277
The light-induced, charge-separated state in single crystals of Photosystem I (PSI) from the cyanobacterium Synechococcus elongatus is investigated with transient, direct-detection EPR spectroscopy...
Autor:
Norbert Krauß, Wolfram Saenger, Olaf Klukas, Petra Fromme, Wolf-Dieter Schubert, Horst Tobias Witt
Publikováno v:
Journal of Molecular Biology. 280:297-314
The 4 A structural model of photosystem I (PSI) has elucidated essential features of this protein complex. Inter alia, it demonstrates that the core proteins of PSI, PsaA and PsaB each consist of an N-terminal antenna-binding domain, and a C-terminal
Autor:
Horst Tobias Witt, Petra Fromme
Publikováno v:
Biochimica et Biophysica Acta (BBA) - Bioenergetics. 1365(1-2):175-184
Stable trimeric Photosystem I (PS I) was isolated from the cyanobacterium Synechococcus elongatus by use of stereochemically pure β-dodecylmaltoside. Crystals of extremely pure PS I are grown by dialysis against low salt concentration. The improved
Autor:
Wolfram Saenger, Horst Tobias Witt, Olaf Klukas, Norbert Krauß, Petra Fromme, Wolf-Dieter Schubert
Publikováno v:
Journal of Molecular Biology. 272:741-769
An improved structural model of the photosystem I complex from the thermophilic cyanobacterium Synechococcus elongatus is described at 4 A resolution. This represents the most complete model of a photosystem presently available, uniting both a photos
Autor:
Wolf-Dieter Schubert, Olaf Klukas, Horst Tobias Witt, Petra Fromme, Norbert Krauß, Wolfram Saenger
Publikováno v:
Nature Structural Biology. 3:965-973
The 4 A X-ray structure model of trimeric photosystem I of the cyanobacterium Synechococcus elongatus reveals 31 transmembrane, nine surface and three stromal alpha-helices per monomer, assigned to the 11 protein subunits: PsaA and PsaB are related b
Autor:
Horst Tobias Witt, H. Kretschmann
Publikováno v:
Biochimica et Biophysica Acta (BBA) - Bioenergetics. 1144:331-345
The chemical reduction and over-reduction of the water-splitting enzyme and its subsequent light-induced reoxidation was followed by simultaneous measurements of (i) UV and (ii) electrochromic absorption changes, accompanied (iii) by O 2 measurement