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Reconstitution of the Light Harvesting Chlorophyll A/b Pigment-Protein Complex into Developing Chloroplast Membranes Using a Dialyzable Detergent

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Journal Plant Physiol
Specialty Physiology
Date 1986 Apr 1
PMID 16664744
Citations 4
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Abstract

Conditions were developed to isolate the light-harvesting chlorophyll-protein complex serving photosystem II (LHC-II) using a dialyzable detergent, octylpolyoxyethylene. This LHC-II was successfully reconstituted into partially developed chloroplast thylakoids of Hordeum vulgare var Morex (barley) seedlings which were deficient in LHC-II. Functional association of LHC-II with the photosystem II (PSII) core complex was measured by two independent functional assays of PSII sensitization by LHC-II. A 3-fold excess of reconstituted LHC-II was required to equal the activity of LHC developing in vivo. We suggest that a linker component may be absent in the partially developed membranes which is required for specific association of the PSII core complex and LHC-II.

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