@article{britt_recent_2004,
	series = {Special issue dedicated to {Jerry} {Babcock}},
	title = {Recent pulsed {EPR} studies of the {Photosystem} {II} oxygen-evolving complex: implications as to water oxidation mechanisms},
	volume = {1655},
	issn = {0005-2728},
	shorttitle = {Recent pulsed {EPR} studies of the {Photosystem} {II} oxygen-evolving complex},
	url = {https://www.sciencedirect.com/science/article/pii/S0005272803002317},
	doi = {10.1016/j.bbabio.2003.11.009},
	abstract = {The pulsed electron paramagnetic resonance (EPR) methods of electron spin echo envelope modulation (ESEEM) and electron spin echo-electron nuclear double resonance (ESE-ENDOR) are used to investigate the structure of the Photosystem II oxygen-evolving complex (OEC), including the paramagnetic manganese cluster and its immediate surroundings. Recent unpublished results from the pulsed EPR laboratory at UC-Davis are discussed, along with aspects of recent publications, with a focus on substrate and cofactor interactions. New data on the proximity of exchangeable deuterons around the Mn cluster poised in the S0-state are presented and interpreted. These pulsed EPR results are used in an evaluation of several recently proposed mechanisms for PSII water oxidation. We strongly favor mechanistic models where the substrate waters bind within the OEC early in the S-state cycle. Models in which the OO bond is formed by a nucleophilic attack by a Ca2+-bound water on a strong S4-state electrophile provide a good match to the pulsed EPR data.},
	urldate = {2024-11-29},
	journal = {Biochimica et Biophysica Acta (BBA) - Bioenergetics},
	author = {Britt, R. David and Campbell, Kristy A and Peloquin, Jeffrey M and Gilchrist, M. Lane and Aznar, Constantino P and Dicus, Michelle M and Robblee, John and Messinger, Johannes},
	month = apr,
	year = {2004},
	keywords = {ENDOR, ESEEM, Multiline EPR signal, S-state, Substrate water binding},
	pages = {158--171},
}

{"_id":"W7zH4GSqKC6Prhw3C","bibbaseid":"britt-campbell-peloquin-gilchrist-aznar-dicus-robblee-messinger-recentpulsedeprstudiesofthephotosystemiioxygenevolvingcompleximplicationsastowateroxidationmechanisms-2004","author_short":["Britt, R. D.","Campbell, K. A","Peloquin, J. M","Gilchrist, M. L.","Aznar, C. P","Dicus, M. M","Robblee, J.","Messinger, J."],"bibdata":{"bibtype":"article","type":"article","series":"Special issue dedicated to Jerry Babcock","title":"Recent pulsed EPR studies of the Photosystem II oxygen-evolving complex: implications as to water oxidation mechanisms","volume":"1655","issn":"0005-2728","shorttitle":"Recent pulsed EPR studies of the Photosystem II oxygen-evolving complex","url":"https://www.sciencedirect.com/science/article/pii/S0005272803002317","doi":"10.1016/j.bbabio.2003.11.009","abstract":"The pulsed electron paramagnetic resonance (EPR) methods of electron spin echo envelope modulation (ESEEM) and electron spin echo-electron nuclear double resonance (ESE-ENDOR) are used to investigate the structure of the Photosystem II oxygen-evolving complex (OEC), including the paramagnetic manganese cluster and its immediate surroundings. Recent unpublished results from the pulsed EPR laboratory at UC-Davis are discussed, along with aspects of recent publications, with a focus on substrate and cofactor interactions. New data on the proximity of exchangeable deuterons around the Mn cluster poised in the S0-state are presented and interpreted. These pulsed EPR results are used in an evaluation of several recently proposed mechanisms for PSII water oxidation. We strongly favor mechanistic models where the substrate waters bind within the OEC early in the S-state cycle. Models in which the OO bond is formed by a nucleophilic attack by a Ca2+-bound water on a strong S4-state electrophile provide a good match to the pulsed EPR data.","urldate":"2024-11-29","journal":"Biochimica et Biophysica Acta (BBA) - Bioenergetics","author":[{"propositions":[],"lastnames":["Britt"],"firstnames":["R.","David"],"suffixes":[]},{"propositions":[],"lastnames":["Campbell"],"firstnames":["Kristy","A"],"suffixes":[]},{"propositions":[],"lastnames":["Peloquin"],"firstnames":["Jeffrey","M"],"suffixes":[]},{"propositions":[],"lastnames":["Gilchrist"],"firstnames":["M.","Lane"],"suffixes":[]},{"propositions":[],"lastnames":["Aznar"],"firstnames":["Constantino","P"],"suffixes":[]},{"propositions":[],"lastnames":["Dicus"],"firstnames":["Michelle","M"],"suffixes":[]},{"propositions":[],"lastnames":["Robblee"],"firstnames":["John"],"suffixes":[]},{"propositions":[],"lastnames":["Messinger"],"firstnames":["Johannes"],"suffixes":[]}],"month":"April","year":"2004","keywords":"ENDOR, ESEEM, Multiline EPR signal, S-state, Substrate water binding","pages":"158–171","bibtex":"@article{britt_recent_2004,\n\tseries = {Special issue dedicated to {Jerry} {Babcock}},\n\ttitle = {Recent pulsed {EPR} studies of the {Photosystem} {II} oxygen-evolving complex: implications as to water oxidation mechanisms},\n\tvolume = {1655},\n\tissn = {0005-2728},\n\tshorttitle = {Recent pulsed {EPR} studies of the {Photosystem} {II} oxygen-evolving complex},\n\turl = {https://www.sciencedirect.com/science/article/pii/S0005272803002317},\n\tdoi = {10.1016/j.bbabio.2003.11.009},\n\tabstract = {The pulsed electron paramagnetic resonance (EPR) methods of electron spin echo envelope modulation (ESEEM) and electron spin echo-electron nuclear double resonance (ESE-ENDOR) are used to investigate the structure of the Photosystem II oxygen-evolving complex (OEC), including the paramagnetic manganese cluster and its immediate surroundings. Recent unpublished results from the pulsed EPR laboratory at UC-Davis are discussed, along with aspects of recent publications, with a focus on substrate and cofactor interactions. New data on the proximity of exchangeable deuterons around the Mn cluster poised in the S0-state are presented and interpreted. These pulsed EPR results are used in an evaluation of several recently proposed mechanisms for PSII water oxidation. We strongly favor mechanistic models where the substrate waters bind within the OEC early in the S-state cycle. Models in which the OO bond is formed by a nucleophilic attack by a Ca2+-bound water on a strong S4-state electrophile provide a good match to the pulsed EPR data.},\n\turldate = {2024-11-29},\n\tjournal = {Biochimica et Biophysica Acta (BBA) - Bioenergetics},\n\tauthor = {Britt, R. David and Campbell, Kristy A and Peloquin, Jeffrey M and Gilchrist, M. 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