ArticleBiophysical journal2006
Function of redox-active tyrosine in photosystem II.
Article in Biophysical journal, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed, 60 citations in OpenAlex.
- Stability and Ultrafast Dynamics of Luminescent Biquinoxen-Molecules (Basel, Switzerland) · 2025Article
- Structural and energetic insights into Mn-to-Fe substitution in the oxygen-evolving complex.iScience · 2023Article
- Solar energy conversion by photosystem II: principles and structures.Photosynthesis research · 2023Review
- Release of a Proton and Formation of a Low-Barrier Hydrogen Bond between Tyrosine D and D2-His189 in Photosystem II.ACS physical chemistry Au · 2022Article
- Peripheral Methionine Residues Impact Flavin Photoreduction and Protonation in an Engineered LOV Domain Light Sensor.Biochemistry · 2021Article
- Computing Proton-Coupled Redox Potentials of Fluorotyrosines in a Protein Environment.The journal of physical chemistry. B · 2021Article
- HYSCORE and DFT Studies of Proton-Coupled Electron Transfer in a Bioinspired Artificial Photosynthetic Reaction Center.iScience · 2020Article
- Molecular dynamics simulations in photosynthesis.Photosynthesis research · 2020Review
- Microsolvation of the Redox-Active Tyrosine-D in Photosystem II: Correlation of Energetics with EPR Spectroscopy and Oxidation-Induced Proton Transfer.Journal of the American Chemical Society · 2019Article
- Article
- Proton transfer reactions and hydrogen-bond networks in protein environments.Journal of the Royal Society, Interface · 2014Review
- Mechanism of tyrosine D oxidation in Photosystem II.Proceedings of the National Academy of Sciences of the United States of America · 2013Article
- Factors controlling the redox potential of ZnCe6 in an engineered bacterioferritin photochemical 'reaction centre'.PloS one · 2013Article
- Tyrosine deprotonation and associated hydrogen bond rearrangements in a photosynthetic reaction center.PloS one · 2011Article
- Light-induced hydrogen bonding pattern and driving force of electron transfer in AppA BLUF domain photoreceptor.The Journal of biological chemistry · 2008Article
- Evidence for intermediate S-states as initial phase in the process of oxygen-evolving complex oxidation.Biophysical journal · 2008Article
- Enthalpy changes during photosynthetic water oxidation tracked by time-resolved calorimetry using a photothermal beam deflection technique.Biophysical journal · 2008Article
- Proton-coupled electron transfer.Chemical reviews · 2007Review
- Article
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Water oxidation at photosystem II Mn-cluster is mediated by the redox-active tyrosine Y(Z). We calculated the redox potential (E(m)) of Y(Z) and its symmetrical counterpart Y(D), by solving the linearized Poisson-Boltzmann equation. The calculated E(m)(Y( )/Y(-)) were +926 mV/+694 mV for Y(Z)/Y(D) with the Mn-cluster in S2 state. Together with the asymmetric position of the Mn-cluster relative to Y(Z/D), differences in H-bond network between Y(Z) (Y(Z)/D1-His(190)/D1-Asn(298)) and Y(D) (Y(D)/D2-His(189)/D2-Arg(294)/CP47-Glu(364)) are crucial for E(m)(Y(Z/D)). When D1-His(190) is protonated, corresponding to a thermally activated state, the calculated E(m)(Y(Z)) was +1216 mV, which is as high as the E(m) for P(D1/D2). We observed deprotonation at CP43-Arg(357) upon S-state transition, which may suggest its involvement in the proton exit pathway. E(m)(Y(D)) was affected by formation of P(D2)(+) (but not P(D1)(+)) and sensitive to the protonation state of D2-Arg(180). This points to an electrostatic link between Y(D) and P(D2).
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