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A consideration of the organization of chloroplast photosystem I

  • I. Photosynthetic Unit; the Antenna System; and the Photosynthetic Pigments
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Abstract

Procedures that allow the fractionation of a native Photosystem I complex (PSI-200) into several chlorophyll-containing complexes are now available. Two complexes, each containing ∼50% of the total chlorophyll of the photosystem, can be isolated. One complex contains both chlorophyll a and b and serves as antenna complex for the reaction center while the reaction center complex contains 100 Chl a molecules per P700 and has 7 different polypeptides. Only two of the latter (62 and 58 kDa) contain chlorophyll a and these can be isolated as the photochemically active CPI complex. Based on these fractionation methods, a model that describes the overall organization of the chlorophyll in Photosystem is presented.

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Authors and Affiliations

  1. Division of Molecular Plant Biology, University of California, 94720, Berkeley, CA

    R. Malkin

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  1. R. Malkin
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Dedicated to the memory of Warren Butler, who was both a friend and a colleague.

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Malkin, R. A consideration of the organization of chloroplast photosystem I. Photosynth Res 10, 197–200 (1986). https://doi.org/10.1007/BF00118283

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  • DOI: https://doi.org/10.1007/BF00118283

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