Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Irine P. Muhiuddin"'
Publikováno v:
Biochemistry. 43:989-994
The interaction of water with the water oxidizing Mn complex of photosystem II has been investigated using electron spin-echo envelope modulation spectroscopy in the presence of H(2)(17)O. The spectra show interaction of the (17)O with the preparatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::399a1885ec42f5d1e376fa1660da519b
https://doi.org/10.1021/bi035489y
https://doi.org/10.1021/bi035489y
Autor:
Michael C.W. Evans, Stephen E. J. Rigby, Irine P. Muhiuddin, Peter Heathcote, Stefano Santabarbara
Publikováno v:
Chemical Physics. 294:319-328
Chlorin anion radicals have been produced by photoaccumulation of photosystem I and the type I reaction centresof the anoxygenic bacteria Chlorobium limicola and Heliobacterium chlorum. Proton electron nuclear double resonance(ENDOR) spectrometry of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74f9b1661607f9bf67ab7dddf24ac44d
https://doi.org/10.1016/s0301-0104(03)00284-2
https://doi.org/10.1016/s0301-0104(03)00284-2
Publikováno v:
Biochemistry. 42:5500-5507
Previous work in many laboratories has established that hydroxylamine reduces the S(1) state of the water oxidizing complex (WOC) in one-electron steps. Significant levels of what can now be defined as the S(-1)* state are achieved by specific (conce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab7f7354562b7ff85ac0fbb2dc56ff41
https://doi.org/10.1021/bi034116u
https://doi.org/10.1021/bi034116u
Autor:
Irine P. Muhiuddin, Peter Heathcote, Susan Carter, David R. Stevens, Saul Purton, Stephen E. J. Rigby, Michael W. Evans
Publikováno v:
Biochemistry. 40:2167-2175
To investigate the environment of the phylloquinone secondary electron acceptor A(1) within the photosystem I reaction center, we have carried out site-directed mutagenesis of two tryptophan residues (W693 and W702) in the PsaA subunit of Chlamydomon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63ee892b126164206ffc5ee71a5aef76
https://doi.org/10.1021/bi0019489
https://doi.org/10.1021/bi0019489
Publikováno v:
Photochemistry and Photobiology. 64:20-25
The electronic structure of the oxidized primary chlorophyll electron donor, P840+., of the green sulfur bacterium Chlorobium limicola has been investigated using electron spin echo envelope modulation (ESEEM) spectroscopy. This ESEEM investigation o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31f2e420f221e6943f25df85e48495bc
https://doi.org/10.1111/j.1751-1097.1996.tb02416.x
https://doi.org/10.1111/j.1751-1097.1996.tb02416.x
Publikováno v:
Biochimica et biophysica acta. 1556(1)
Photoaccumulation of membrane preparations of Chlamydomonas reinhardtii at pH 8 and 220 K reduces the primary and secondary electron acceptors in the Photosystem I (PSI) reaction centre, and produces a maximum of two spins per P700 + . Proton electro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19d85ec1962ecf496630241e733afc98
https://pubmed.ncbi.nlm.nih.gov/12351214
https://pubmed.ncbi.nlm.nih.gov/12351214
Publikováno v:
Biochemistry. 41(12)
We report the detection of a "split" electron paramagnetic resonance (EPR) signal during illumination of dark-adapted (S(1) state) oxygen-evolving photosystem II (PSII) membranes at20 K. The characteristics of this signal indicate that it arises from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8e69a39468e08ab518b456c925a639b
https://pubmed.ncbi.nlm.nih.gov/11900555
https://pubmed.ncbi.nlm.nih.gov/11900555
Publikováno v:
Biochemistry. 38(22)
Photoaccumulation at 205 K in the presence of dithionite produces EPR signals in anaerobically prepared membranes from Chlorobium limicola and Heliobacterium chlorum that resemble the EPR spectrum of phyllosemiquinone (A1*-) photoaccumulated in photo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8dcf84a1286f6fb072269d8ba2beb61c
https://pubmed.ncbi.nlm.nih.gov/10353826
https://pubmed.ncbi.nlm.nih.gov/10353826
Autor:
M. Thurnauer, Helen K. Leech, J. Amesz, Stephen E. J. Rigby, Irine P. Muhiuddin, Peter Heathcote, Michael C.W. Evans
Publikováno v:
Photosynthesis: Mechanisms and Effects ISBN: 9780792355472
We have demonstrated [1] that photoaccumulation under reducing conditions at 205K produces an electron paramagnetic resonance (EPR) signal arising from a stable semiquinone form of the phylloquinone electron acceptor (A1•−) in Photosystem I (PSI)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1aa32bf232cca073ee546afbbc1afd91
https://doi.org/10.1007/978-94-011-3953-3_131
https://doi.org/10.1007/978-94-011-3953-3_131
Autor:
S. Carter, Peter Heathcote, Stephen E. J. Rigby, Michael C.W. Evans, Saul Purton, Irine P. Muhiuddin
Publikováno v:
FEBS Letters. (1):56-60
Kinetic analysis using pulsed electron paramagnetic resonance (EPR) of photosynthetic electron transfer in the photosystem I reaction centres of Synechocystis 6803, in wild-type Chlamydomonas reinhardtii, and in site directed mutants of the phylloqui
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb160d3a06b4c85697ea9c1ff5a0fa4a