X-ray absorption spectroscopy and EPR studies of oriented spinach thylakoid preparations

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Description

In this study, oriented Photosystem II (PS II) particles from spinach chloroplasts are studied with electron paramagnetic resonance (EPR) and x-ray absorption spectroscopy (XAS) to determine more details of the structure of the oxygen evolving complex (OEC). The nature of halide binding to Mn is also studied with Cl K-edge and Mn EXAFS (extended x-ray absorption fine structure) of Mn-Cl model compounds, and with Mn EXAFS of oriented PS II in which Br has replaced Cl. Attention is focused on the following: photosynthesis and the oxygen evolving complex; determination of mosaic spread in oriented photosystem II particles from signal II ... continued below

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129 p.

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Andrews, J.C. August 1, 1995.

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  • Andrews, J.C. Univ. of California, Berkeley, CA (United States). Dept. of Chemistry

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Description

In this study, oriented Photosystem II (PS II) particles from spinach chloroplasts are studied with electron paramagnetic resonance (EPR) and x-ray absorption spectroscopy (XAS) to determine more details of the structure of the oxygen evolving complex (OEC). The nature of halide binding to Mn is also studied with Cl K-edge and Mn EXAFS (extended x-ray absorption fine structure) of Mn-Cl model compounds, and with Mn EXAFS of oriented PS II in which Br has replaced Cl. Attention is focused on the following: photosynthesis and the oxygen evolving complex; determination of mosaic spread in oriented photosystem II particles from signal II EPR measurement; oriented EXAFS--studies of PS II in the S{sub 2} state; structural changes in PS II as a result of treatment with ammonia: EPR and XAS studies; studies of halide binding to Mn: Cl K-edge and Mn EXAFS of Mn-Cl model compounds and Mn EXAFS of oriented Br-treated photosystem II.

Physical Description

129 p.

Notes

OSTI as DE96002060

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  • Other Information: TH: Thesis (Ph.D.)

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  • Other: DE96002060
  • Report No.: LBL--37695
  • Grant Number: AC03-76SF00098
  • DOI: 10.2172/125043 | External Link
  • Office of Scientific & Technical Information Report Number: 125043
  • Archival Resource Key: ark:/67531/metadc628471

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Office of Scientific & Technical Information Technical Reports

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  • August 1, 1995

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 5, 2016, 11:25 a.m.

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Andrews, J.C. X-ray absorption spectroscopy and EPR studies of oriented spinach thylakoid preparations, report, August 1, 1995; California. (digital.library.unt.edu/ark:/67531/metadc628471/: accessed December 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.