Interaction of stigmatellin and DNP‐INT with the Rieske iron‐sulfur center of the chloroplast cytochrome b6‐f complex

FEBS Letters

Malkin, Richard¹ 

[1] Division of Molecular Plant Biology, University of California, 313 Hilgard Hall, Berkeley, CA 94720, USA

关键词: Stigmatellin DNP-INT Cytochrome b6-f Rieske FeS protein D BMIB;    DNP-INT;    2-iodo-2';    4';    4'-trinitro-3-methyl-6-isopropyl diphenyl ether;    DBMIB;    2;    5-dibromo-3-methyl-6-isopropyl-1;    4-benzoquinone;    DAD;    diaminodurene;    DCPIP;    dichlorophenolindophenol;   

DOI  :  10.1016/0014-5793(86)81041-9

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

Stigmatellin and DNP-INT are effective inhibitors of the catalytic activity of the plastoquinol-plastocyanin oxidoreductase complex (cytochrome b₆-f complex). Both inhibitors alter the EPR spectrum of the Rieske iron-sulfur center but do not produce band-shifts of cytochrome b-563. The midpoint redox potential of the Rieske center is unaffected by either inhibitor, although both alter the DBMIB-induced g-value shifts of the Rieske center. The results are considered in terms of binding domains for inhibitors in the cytochrome b₆-f complex.

【 授权许可】

Unknown