| Literature DB >> 23722112 |
Peng Hu1, Jing Lv, Pengcheng Fu, Mi Hualing.
Abstract
Although type-1 NAD(P)H dehydrogenase (NDH) complex subunit constituents and physiological functions have been reported in plants and cyanobacteria, the biochemical properties of this enzyme are not clear. We used chromatographic isolation to purify and characterize a NADPH-active NDH from the cyanobacterium Thermosynechococcus elongatus. Ferredoxin (Fd) and ferredoxin-NADP(+) oxidoreductase (FNR) were co-eluted with NDH, implying the electron donation from NADPH to NDH via the interaction with FNR. We investigated the enzymatic properties of the complex. Furthermore, the activity is competitively inhibited by rotenone, suggesting that it possesses a quinone binding site, similar to mitochondria complex I.Entities:
Keywords: 2,6-dichloroindophenol sodium salt dydrate; Cyanobacteria; DCPIP; DM; FNR; Fd; Ferredoxin; Ferredoxin NADP(+) oxidoreductase; HEPES; N-2-hydroxyethylpiperazine-N'-2-ethanesulfonic acid; NADPH oxidation; NDH; NDH complex; PBS; PS I; Q(0); Q(10); Rotenone; ferredoxin; ferredoxin-NADP(+) oxidoreductase; n-dodecyl-β-d-maltoside; photosystem I; phycobilisome protein; type-1 NAD(P)H dehydrogenase; ubiquinone-0; ubiquinone-10
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Year: 2013 PMID： 23722112 DOI： 10.1016/j.febslet.2013.05.040
Source DB: PubMed Journal: FEBS Lett ISSN： 0014-5793 Impact factor: 4.124