Replacement of Tyrosine D with Phenylalanine Affects the Normal Proton Transfer Pathways for the Reduction of P680+in Oxygen-Evolving Photosystem II Particles fromChlamydomonas

Biochemistry ◽  
2002 ◽  
Vol 41 (52) ◽  
pp. 15754-15761 ◽  
Author(s):  
C. Jeans ◽  
M. J. Schilstra ◽  
N. Ray ◽  
S. Husain ◽  
J. Minagawa ◽  
...  
Keyword(s):  
Photosystem Ii ◽  
Proton Transfer ◽  
Oxygen Evolving ◽  
Tyrosine D ◽  
Photosystem Ii Particles

scholarly journals Isolation of oxygen-evolving phycobilisome-photosystem II particles from Porphyridium cruentum

FEBS Letters ◽  
1983 ◽  
Vol 156 (1) ◽  
pp. 185-188 ◽  
Author(s):  
Jenny D. Clement-Metral ◽  
Elisabeth Gantt
Keyword(s):  
Photosystem Ii ◽  
Porphyridium Cruentum ◽  
Oxygen Evolving ◽  
Photosystem Ii Particles

Structural Consequences of Ammonia Binding to the Manganese Center of the Photosynthetic Oxygen-Evolving Complex: An X-ray Absorption Spectroscopy Study of Isotropic and Oriented Photosystem II Particles

Biochemistry ◽  
1995 ◽  
Vol 34 (15) ◽  
pp. 5274-5287 ◽  
Author(s):  
Holger Dau ◽  
Joy C. Andrews ◽  
Theo A. Roelofs ◽  
Matthew J. Latimer ◽  
Wenchuan Liang ◽  
...  
Keyword(s):  
Photosystem Ii ◽  
Absorption Spectroscopy ◽  
Oxygen Evolving Complex ◽  
Spectroscopy Study ◽  
X Ray ◽  
Photosynthetic Oxygen ◽  
Oxygen Evolving ◽  
X Ray Absorption ◽  
Photosystem Ii Particles

Nitrogen ligation to manganese in the photosynthetic oxygen-evolving complex: continuous-wave and pulsed EPR studies of photosystem II particles containing nitrogen-14 or nitrogen-15

Biochemistry ◽  
1991 ◽  
Vol 30 (5) ◽  
pp. 1335-1341 ◽  
Author(s):  
Victoria J. DeRose ◽  
Vittal K. Yachandra ◽  
Ann E. McDermott ◽  
R. David Britt ◽  
Kenneth Sauer ◽  
...  
Keyword(s):  
Photosystem Ii ◽  
Continuous Wave ◽  
Oxygen Evolving Complex ◽  
Pulsed Epr ◽  
Photosynthetic Oxygen ◽  
Oxygen Evolving ◽  
Photosystem Ii Particles

Proton transfer pathway from the oxygen-evolving complex in photosystem II substantiated by extensive mutagenesis

2021 ◽  
Vol 1862 (1) ◽  
pp. 148329
Author(s):  
Hiroshi Kuroda ◽  
Keisuke Kawashima ◽  
Kazuyo Ueda ◽  
Takuya Ikeda ◽  
Keisuke Saito ◽  
...  
Keyword(s):  
Photosystem Ii ◽  
Proton Transfer ◽  
Oxygen Evolving Complex ◽  
Oxygen Evolving

scholarly journals Energetics of the Proton Transfer Pathway for Tyrosine D in Photosystem II

2016 ◽  
Vol 69 (9) ◽  
pp. 991 ◽  
Author(s):  
Keisuke Saito ◽  
Naoki Sakashita ◽  
Hiroshi Ishikita
Keyword(s):  
Hydrogen Bond ◽  
Photosystem Ii ◽  
Proton Transfer ◽  
Electrostatic Interactions ◽  
Water Molecules ◽  
Hydrogen Bond Network ◽  
Redox States ◽  
Redox Active ◽  
Bond Network ◽  
Tyrosine D

The proton transfer pathway for redox active tyrosine D (TyrD) in photosystem II is a hydrogen-bond network that involves D2-Arg180 and a series of water molecules. Using quantum mechanical/molecular mechanical calculations, the detailed properties of the energetics and structural geometries were investigated. The potential-energy profile of all hydrogen bonds along the proton transfer pathway indicates that the overall proton transfer from TyrD is energetically downhill. D2-Arg180 plays a key role in the proton transfer pathway, providing a driving force for proton transfer, maintaining the hydrogen-bond network structure, stabilising P680•+, and thus deprotonating TyrD-OH to TyrD-O•. A hydrophobic environment near TyrD enhances the electrostatic interactions between TyrD and redox active groups, e.g. P680 and the catalytic Mn4CaO5 cluster: the redox states of those groups are linked with the protonation state of TyrD, i.e. release of the proton from TyrD. Thus, the proton transfer pathway from TyrD may ultimately contribute to the conversion of S0 into S1 in the dark in order to stabilise the Mn4CaO5 cluster when the photocycle is interrupted in S0.

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