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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Bell, Adam J. Bricker, Terry M. Frankel, Laurie K. |
| Description | Author Affiliation: Bell AJ ( From the Department of Biological Sciences, Biochemistry and Molecular Biology Section, Louisiana State University, Baton Rouge, Louisiana 70803.); Frankel LK ( From the Department of Biological Sciences, Biochemistry and Molecular Biology Section, Louisiana State University, Baton Rouge, Louisiana 70803.); Bricker TM ( From the Department of Biological Sciences, Biochemistry and Molecular Biology Section, Louisiana State University, Baton Rouge, Louisiana 70803 btbric@lsu.edu.) |
| Abstract | Styrene-maleic acid copolymer was used to effect a non-detergent partial solubilization of thylakoids from spinach. A high density membrane fraction, which was not solubilized by the copolymer, was isolated and was highly enriched in the Photosystem (PS) I-light-harvesting chlorophyll (LHC) II supercomplex and depleted of PS II, the cytochrome b6/f complex, and ATP synthase. The LHC II associated with the supercomplex appeared to be energetically coupled to PS I based on 77 K fluorescence, P700 photooxidation, and PS I electron transport light saturation experiments. The chlorophyll (Chl) a/b ratio of the PS I-LHC II membranes was 3.2 ± 0.9, indicating that on average, three LHC II trimers may associate with each PS I. The implication of these findings within the context of higher plant PS I antenna organization is discussed. |
| ISSN | 00219258 |
| e-ISSN | 1083351X |
| Journal | Journal of Biological Chemistry |
| Issue Number | 30 |
| Volume Number | 290 |
| Language | English |
| Publisher | American Society for Biochemistry and Molecular Biology (United States) |
| Publisher Date | 2015-07-24 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Chloroplasts Chemistry Cytochrome B6f Complex Isolation & Purification Light-Harvesting Protein Complexes Photosynthesis Photosystem I Protein Complex Photosystem II Protein Complex Cell Membrane Chloroplast Proton-Translocating ATPases Maleic Anhydrides Polystyrenes Spectrometry, Fluorescence Spinacia Oleracea Thylakoids Research Support, U.S. Gov't, Non-P.H.S. Biochemistry Molecular Biology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cell Biology Biochemistry Molecular Biology |
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