The Composition of Pigment Molecules in the Center of the Photosystem II Complex Reaction (IMAGE)

Kobe University

The Composition of Pigment Molecules in the Center of the Photosystem II Complex Reaction

Caption

This is the composition of pigment molecules in the center of the photosystem II complex reaction, clarified by x-ray structural analysis. Based on the initial charge separation process, a negative charge occurs in pheophytin (PheoD1) and a positive charge in chlorophyll (PD1). This time plastoquinone (QA,QB) was pre-reduced: the thylakoid membrane samples in which electron transfer from pheophytin had been suspended were irradiated, and the charge separation state (PheoD1-? PD1+?) was captured. Mn4CaO5 is oxidized from PD1+?and serves as a catalyst for water splitting.

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Kobe University

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