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The pigment stoichiometry in a chlorophyll a/c type photosynthetic antenna

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  • Biology


The trimeric fucoxanthin–chlorophyll a/c protein (FCP) was purified from a Japanese brown alga, Cladosiphon okamuranus TOKIDA. Its pigment stoichiometry was determined to be chlorophyll (Chl) a:Chl c 1:Chl c 2:fucoxanthin = 4.6:1.1:1.0:5.5 by a combination of binary HPLC and 1H NMR spectroscopy. No violaxanthin found bound to the FCP. The ratio of Chl c/Chl a in this FCP is amongst the highest so far reported.

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