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・ Nadalama, Lääne-Viru County
・ Nadalama, Rapla County
・ Nad Niemnem
・ Nad Niemnem (film)
・ Nad Rzeką
・ Nad Shamma
・ Nad Tatrou sa blýska
・ NAD X Road
・ Nad's
・ NAD(+)—dinitrogen-reductase ADP-D-ribosyltransferase
・ NAD(+)—diphthamide ADP-ribosyltransferase
・ NAD(P)(+)—protein-arginine ADP-ribosyltransferase
・ NAD(P)+ nucleosidase
・ NAD(P)+ transhydrogenase
・ NAD(P)+ transhydrogenase (Re/Si-specific)
NAD(P)+ transhydrogenase (Si-specific)
・ NAD(P)H dehydrogenase (quinone 1)
・ NAD(P)H dehydrogenase (quinone)
・ NAD(P)H dehydrogenase, quinone 2
・ NAD(P)H oxidase
・ NAD(P)H-hydrate epimerase
・ NAD+ diphosphatase
・ NAD+ in neurodegeneration
・ NAD+ kinase
・ NAD+ nucleosidase
・ NAD+ pyrophosphorylase
・ NAD+ synthase
・ NAD+ synthase (glutamine-hydrolysing)
・ NAD+ transhydrogenase
・ Nad, County Cork


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NAD(P)+ transhydrogenase (Si-specific) : ウィキペディア英語版
NAD(P)+ transhydrogenase (Si-specific)

In biochemistry, NAD(P)+ transhydrogenase (''Si''-specific) () is an enzyme that catalyzes the chemical reaction
:NADPH + NAD+ \rightleftharpoons NADP+ + NADH
Thus, the two substrates of this enzyme are NADPH and NAD+, whereas its two products are NADP+ and NADH. This enzyme participates in nicotinate and nicotinamide metabolism. It employs one cofactor, FAD.
== Physiological function ==

''Si''-specific transhydrogenase is a soluble protein found in some Gammaproteobacteria and gram-positive bacteria. Enterobacteriaceae are known to possess both a soluble and a membrane-bound transhydrogenase. In living cells this enzyme primarily operates in the direction consuming NADPH and producing NADH, as the physiological ratio of NADPH/NADP+ is much higher than the ratio of NADH/NAD+.〔 Its chief function ''in vivo'' is the reoxidization of excess NADPH.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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