Association of a thioredoxin-like protein with chloroplaast coupling factor (CF1). |
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| Authors: | D W McKinney B B Buchanan R A Wolosiuk |
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| Institution: | Department of Cell Physiology University of California Berkeley, California 94720 U.S.A. |
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| Abstract: | The δ subunit isolated from chloroplast coupling factor (CF1) preparations partially replaced thioredoxin in the dithiothreitol-linked activation of chloroplast fructose 1,6-bisphosphatase. The δ subunit fraction also stimulated the dithiothreitol-dependent ATPase of heated CF1 in a manner analogous to that obseryed with each of the three thioredoxins isolated from spinach leaves (thioredoxins f, m, and c). The δ subunit used in most of these experiments was obtained from CF1 that had been isolated by a newly devised procedure based on acid precipitation. |
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