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Article

Photosystem I light-harvesting complex Lhca4 adopts multiple conformations: Red forms and excited-state quenching are mutually exclusive.

Biochimica et biophysica acta - 1 Apr 2010

Passarini Francesca, Wientjes Emilie, van Amerongen Herbert, Croce Roberta

Abstract excerpt

In this work we have investigated the origin of the multi-exponential fluorescence decay and of the short excited-state lifetime of Lhca4. Lhca4 is the antenna complex of Photosystem I which accommodates the red-most chlorophyll forms and it has been proposed that these chlorophylls can play a role in fluorescence quenching. Here we have compared the fluorescence decay of Lhca4 with that of several Lhca4 mutants...

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PMID: 20097154
DOI: 10.1016/j.bbabio.2010.01.015

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