| Literature DB >> 7451487 |
N Carrillo, H A Lucero, R H Vallejos.
Abstract
Light increases the affinity of chloroplast membrane-bound ferredoxin-NADP+ oxidoreductase for its physiological substrates in NADP+ photoreduction, that is, NADP+ and ferredoxin. Light may cause this effect through a conformational change of the enzyme related to the formation of a light-driven delta pH since the effect is prevented by uncouplers. Although the external pH does influence the extent of photoreduction of NADP+ in saturating light, it does not significantly influence the extent of the energy-driven change in affinity of the enzyme for its substrates.Entities:
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Year: 1981 PMID： 7451487
Source DB: PubMed Journal: J Biol Chem ISSN： 0021-9258 Impact factor: 5.157