Difference between revisions of "Nicotinamide adenine dinucleotide"

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{{MitoPedia
 
{{MitoPedia
 
|abbr=NADH
 
|abbr=NADH
|description='''Nicotinamide adenine dinucleotide''', NAD<sup>+</sup> and NADH (pyridine nucleotide coenzymes, NAD and NADP), is an oxidation-reduction coenzyme (redox cofactor; compare [[FADH2 |FADH<sub>2</sub>]]). In the [[NADH Electron transfer-pathway state]] fuelled by type N substrates, mt-matrix dehydrogenases generate NADH, the substrate of [[Complex I]] (CI). The mt-NADH pool integrates the activity of the [[TCA cycle]] and various matrix dehydrogenases upstream of CI, and thus forms a junction or funnel of electron transfer to CI, the [[N-junction]] (compare [[F-junction]], [[Q-junction]]). NAD<sup>+</sup> and NADH are not permeable through the inner mt-membrane. Cytosolic NADH is effectively made available for mitochondrial respiration through the [[malate-aspartate shuttle]] or [[Glycerophosphate_dehydrogenase_complex|glycerophosphate dehydrogenase Complex]].
+
|description='''Nicotinamide adenine dinucleotide''', NAD<sup>+</sup> and NADH (pyridine nucleotide coenzymes, NAD and NADP), is an oxidation-reduction coenzyme (redox cofactor; compare [[FADH2 |FADH<sub>2</sub>]]). In the [[NADH Electron transfer-pathway state]] fuelled by type N substrates, mt-matrix dehydrogenases generate NADH, the substrate of [[Complex I]] (CI). The mt-NADH pool integrates the activity of the [[TCA cycle]] and various matrix dehydrogenases upstream of CI, and thus forms a junction or funnel of electron transfer to CI, the [[N-junction]] (compare [[F-junction]], [[Q-junction]]). NAD<sup>+</sup> and NADH are not permeable through the mt-inner membrane, mtIM. Cytosolic NADH is effectively made available for mitochondrial respiration through the [[malate-aspartate shuttle]] or [[Glycerophosphate_dehydrogenase_complex|glycerophosphate dehydrogenase Complex]].
 
}}
 
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{{MitoPedia topics
 
{{MitoPedia topics
 
|mitopedia topic=Substrate and metabolite
 
|mitopedia topic=Substrate and metabolite
 
}}
 
}}
  Communicated by [[Gnaiger E]] 2016-02-12, edited 2016-11-29.
+
  Communicated by [[Gnaiger E]] 2016-02-12, last edit 2019-07-01.
 
== Application in [[HRR]] ==
 
== Application in [[HRR]] ==
 
:::: '''Nicotinadeninedinucleotide, NADH''' (β-Nicotinamide adenine dinucleotide, reduced potassium salt, C<sub>21</sub>H<sub>27</sub>N<sub>7</sub>O<sub>14</sub>P<sub>2</sub>K<sub>2</sub>);  Sigma A 4505, 100 mg, store at -20 °C (old Sigma recommendation: 4-8 °C); FW = 742.61, for important considerations concerning storage of NADH (powder and solutions) and preparation of solutions see the product information from Sigma: [https://www.sigmaaldrich.com/content/dam/sigma-aldrich/docs/Sigma/Product_Information_Sheet/2/n4505pis.pdf]. The same precautions are recommended by Sigma for the sodium salt.
 
:::: '''Nicotinadeninedinucleotide, NADH''' (β-Nicotinamide adenine dinucleotide, reduced potassium salt, C<sub>21</sub>H<sub>27</sub>N<sub>7</sub>O<sub>14</sub>P<sub>2</sub>K<sub>2</sub>);  Sigma A 4505, 100 mg, store at -20 °C (old Sigma recommendation: 4-8 °C); FW = 742.61, for important considerations concerning storage of NADH (powder and solutions) and preparation of solutions see the product information from Sigma: [https://www.sigmaaldrich.com/content/dam/sigma-aldrich/docs/Sigma/Product_Information_Sheet/2/n4505pis.pdf]. The same precautions are recommended by Sigma for the sodium salt.

Latest revision as of 02:09, 1 July 2019

Bioblasts - Richard Altmann and MiPArt by Odra Noel
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MitoPedia

Nicotinamide adenine dinucleotide

Description

Nicotinamide adenine dinucleotide, NAD+ and NADH (pyridine nucleotide coenzymes, NAD and NADP), is an oxidation-reduction coenzyme (redox cofactor; compare FADH2). In the NADH Electron transfer-pathway state fuelled by type N substrates, mt-matrix dehydrogenases generate NADH, the substrate of Complex I (CI). The mt-NADH pool integrates the activity of the TCA cycle and various matrix dehydrogenases upstream of CI, and thus forms a junction or funnel of electron transfer to CI, the N-junction (compare F-junction, Q-junction). NAD+ and NADH are not permeable through the mt-inner membrane, mtIM. Cytosolic NADH is effectively made available for mitochondrial respiration through the malate-aspartate shuttle or glycerophosphate dehydrogenase Complex.

Abbreviation: NADH


MitoPedia topics: Substrate and metabolite 

Communicated by Gnaiger E 2016-02-12, last edit 2019-07-01.

Application in HRR

Nicotinadeninedinucleotide, NADH (β-Nicotinamide adenine dinucleotide, reduced potassium salt, C21H27N7O14P2K2); Sigma A 4505, 100 mg, store at -20 °C (old Sigma recommendation: 4-8 °C); FW = 742.61, for important considerations concerning storage of NADH (powder and solutions) and preparation of solutions see the product information from Sigma: [1]. The same precautions are recommended by Sigma for the sodium salt.


Historical terminology

  • DPN+ = NAD+
  • DPNH, reduced diphosphopyridine nucleotide = NADH
  • TPN+ = NADP+
  • TPNH, reduced triphosphopyridine nucleotide = NADPH