ArticlePhilosophical transactions of the Royal Society of London. Series B, Biological sciences2008
On the structure of the manganese complex of photosystem II: extended-range EXAFS data and specific atomic-resolution models for four S-states.
Article in Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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20 citing papers in PubMed, 180 citations in OpenAlex.
- Theoretical elucidation of the structure, bonding, and reactivity of the CaMnPhotosynthesis research · 2024Review
- Development of serial X-ray fluorescence holography for radiation-sensitive protein crystals.Journal of synchrotron radiation · 2023Article
- Mimicking the Oxygen-Evolving Center in Photosynthesis.Frontiers in plant science · 2022Review
- Mixed valency in ligand-bridged diruthenium frameworks: divergences and perspectives.RSC advances · 2018Review
- Optimizing Crystal Size of Photosystem II by Macroseeding: Toward Neutron Protein Crystallography.Crystal growth & design · 2018Article
- Crystallographic Data Support the Carousel Mechanism of Water Supply to the Oxygen-Evolving Complex of Photosystem II.ACS energy letters · 2017Article
- Theoretical study of the EPR spectrum of the SPhotosynthesis research · 2016Article
- The MOD-QM/MM Method: Applications to Studies of Photosystem II and DNA G-Quadruplexes.Methods in enzymology · 2016Review
- Metal oxidation states in biological water splitting.Chemical science · 2015Article
- Native structure of photosystem II at 1.95 Å resolution viewed by femtosecond X-ray pulses.Nature · 2015Article
- Pathway for Mn-cluster oxidation by tyrosine-Z in the S2 state of photosystem II.Proceedings of the National Academy of Sciences of the United States of America · 2014Article
- The S2 state of the oxygen-evolving complex of photosystem II explored by QM/MM dynamics: spin surfaces and metastable states suggest a reaction path towards the S3 state.Angewandte Chemie (International ed. in English) · 2013Article
- Ammonia binding to the oxygen-evolving complex of photosystem II identifies the solvent-exchangeable oxygen bridge (μ-oxo) of the manganese tetramer.Proceedings of the National Academy of Sciences of the United States of America · 2013Article
- A reaction center-dependent photoprotection mechanism in a highly robust photosystem II from an extremophilic red alga, Cyanidioschyzon merolae.The Journal of biological chemistry · 2013Article
- Synthetic model of the asymmetric [Mn3CaO4] cubane core of the oxygen-evolving complex of photosystem II.Proceedings of the National Academy of Sciences of the United States of America · 2012Article
- Time-resolved structural studies of protein reaction dynamics: a smorgasbord of X-ray approaches.Acta crystallographica. Section A, Foundations of crystallography · 2010Article
- Recent developments of the quantum chemical cluster approach for modeling enzyme reactions.Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry · 2009Review
- Photosynthetic water oxidation at elevated dioxygen partial pressure monitored by time-resolved X-ray absorption measurements.Proceedings of the National Academy of Sciences of the United States of America · 2008Article
- Revealing how nature uses sunlight to split water. Introduction.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2008Article
- Substrate water binding and oxidation in photosystem II.Photosynthesis researchReview
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4 authors at 1 institution in 1 country.
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Abstract
The water-oxidizing manganese complex bound to the proteins of photosystem II (PSII) was studied by X-ray absorption spectroscopy on PSII membrane particles. An extended range for collection of extended X-ray absorption fine-structure (EXAFS) data was used (up to 16.6A(-1)). The EXAFS suggests the presence of two Mn-Mn distances close to 2.7A (per Mn4Ca complex); the existence of a third Mn-Mn distance below 2.9A is at least uncertain. Interestingly, a distance of 3.7A is clearly resolved in the extended-range data and tentatively assigned to a Mn-Mn distance. Taking into account the above EXAFS results (inter alia), we present a model for the structure of the PSII manganese complex, which differs from previous atomic-resolution models. Emphasizing the hypothetical character, we propose for all semi-stable S-states: (i) a structure of the Mn4Ca(mu-O)n core, (ii) a model of the amino acid environment, and (iii) assignments of distinct Mn oxidation states to all the individual Mn ions. This specific working model may permit discussion, verification and invalidation of its various features in comparison with experimental and theoretical findings.
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