Description
NADH is a coenzyme that functions as a regenerating electron donor in catabolic processes including glycolysis, beta-oxidation and the citric acid cycle (Krebs cycle, TCA cycle). It participates in cell signaling events as well, for example as a substrate for the poly (ADP-ribose) polymerases (PARPs) during the DNA damage response. The NAD+/NADH dependent sirtuins play key roles in stress responses during events involving energy metabolism, with implications in cancer biology, diabetes and neurodegenerative disease.
Enzyme Commission Number
EC 1.1.1.1
Purity
Dertermined by decrease in absorbance at 340 nm on enzymatic oxidation with ADH* at pH 10.0 > 95% *ADH = Alcohol dehydrogenase (yeast) (EC 1.1.1.1.)
Structure
C21H27N7O14P2Na2
Specificity
Water content: < 8% by Karl Fischer; Sodium content: 6.5 ± 1.5% by flame photometyl
Storage
Keep tightly stoppered in the dark below 5°C. Moisture will reduce the purity. For prolonged storage, keep below-20°C. Unstable in acids, but relatively stable at pH 10-11.
Synonyms
aldehyde reductase; ADH; alcohol dehydrogenase (NAD); aliphatic alcohol dehydrogenase; ethanol dehydrogenase; NAD-dependent alcohol dehydrogenase; NAD-specific aromatic alcohol dehydrogenase; NADH-alcohol dehydrogenase; NADH-aldehyde dehydrogenase; primary alcohol dehydrogenase; yeast alcohol dehydrogenase; EC 1.1.1.1; β-NADH