Work

ESE relaxation measurements in photosystem II The influence of the reaction center non‐heme iron on the spin‐lattice relaxation of Tyr D.

Year: 1991

Type: article

Abstract: The spin-lattice relaxation of the tyrosine radical D. in Photosystem II particles was studied at 4.2 K in samples in which flash-induced oscillations of the oxidation state of the Mn-cluster of the oxygen evolving system were abolished by addition of ANT2P, leaving Fe2+/Fe3+ oscillations intact. Samples subjected to 0, 1 or 2 light-flashes all showed the same relaxation kinetics. No period-2 oscillation in the spin-lattice relaxation corresponding to the Fe2+/Fe(3+)-oscillation was observed. Thus the T1-oscillations of D. as a function of flash number in untreated samples are solely caused by the charge-oscillations of the Mn-cluster (1989, Biochim, Biophys. Acta 973, 428-442).

Source: FEBS Letters

DOI: 10.1016/0014-5793(91)80884-6

Authors: M K Bosch, R G Evelo, S Styring, A W Rutherford, A J Hoff

Institution: Leiden University

Language: English

Topic: Photosynthetic Processes and Mechanisms

Subfield: Molecular Biology

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

Open Access status: bronze

Funders: Nederlandse Organisatie voor Wetenschappelijk Onderzoek, Knut och Alice Wallenbergs Stiftelse, Centre National de la Recherche Scientifique

OpenAlex ID: W2010153706

FWCI: 0.223

Cites: 16

Cited by: 6

Related to: 10