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Article

Engagement of specific sites in the plastoquinone niche regulates degradation of the D1 protein in photosystem II.

The Journal of biological chemistry - 5 Oct 1993

Jansen M A, Depka B, Trebst A, Edelman M

Abstract excerpt

Rapid degradation of the photosystem-II reaction center protein, D1, is driven by visible and ultraviolet irradiance at low photon-flux in the intact plant. We find that all inhibitors of electron flow that replace bound plastoquinone (QB) from its niche on D1 inhibit UV-B-driven D1 degradation, but only some inhibit visible light-driven degradation. Stabilization of the D1 protein by nitrophenol type inhibitors...

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PMID: 8407962

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