NAD

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 Dictionary entry overview: What does NAD mean? 

• NAD (noun)
  The noun NAD has 1 sense:

1. a coenzyme present in most living cells and derived from the B vitamin nicotinic acid; serves as a reductant in various metabolic processes

  Familiarity information: NAD used as a noun is very rare.

 Dictionary entry details 

• NAD (noun)

Sense 1

Meaning:

A coenzyme present in most living cells and derived from the B vitamin nicotinic acid; serves as a reductant in various metabolic processes

Classified under:

Nouns denoting substances

Synonyms:

NAD; nicotinamide adenine dinucleotide

Hypernyms ("NAD" is a kind of...):

coenzyme (a small molecule (not a protein but sometimes a vitamin) essential for the activity of some enzymes)

 Context examples 

The active form of vitamin B3 and a component of the coenzyme nicotinamide adenine dinucleotide (NAD).

(Niacinamide, NCI Thesaurus)

Niacin is converted to its active form niacinamide, which is a component of the coenzymes nicotinamide adenine dinucleotide (NAD) and its phosphate form, NADP.

(Niacin, NCI Thesaurus)

A family of homotetrameric cytoplasmic enzymes involved in the conversion of L-lactate and NAD to pyruvate and NADH in the final step of anaerobic glycolysis.

(Lactate dehydrogenase, NCI Thesaurus)

This allele, which encodes 15-hydroxyprostaglandin dehydrogenase [NAD+] protein, plays a role in the regulation of prostaglandin metabolism.

(HPGD wt Allele, NCI Thesaurus)

Eventually, the extensive DNA damage causes hyperactivation of poly(ADP-ribose) polymerase-1 (PARP-1), an enzyme facilitating DNA repair, accompanied by rapid depletion of NAD+/ATP nucleotide levels.

(Lapachone, NCI Thesaurus)

Oltipraz induces phase II detoxification enzymes, such as glutathione S transferase (GST) and NAD(P)H:quinone oxidoreductase 1 (NQO1).

(Oltipraz, NCI Thesaurus)

Vitamin B3, also called nicotinic acid or niacin, is a precursor to NAD (nicotinamide adenine dinucleotide), which is essential to metabolism and likely very ancient in origin.

(Vitamin B3 might have been made in space, delivered to Earth by meteorites, NASA)

Diphtheria and PA toxins inhibit protein synthesis by catalyzing covalent ADP-ribosylation of EF2 (from NAD).

(Elongation Factor 2, NCI Thesaurus)

The Ah receptor/ARNT heterodimer binds to dioxin-responsive elements and alters expression of a number of genes including; CYP1A1, CYP1A2, CYP1B1, and NAD(P)H quinone oxidoreductase.

(AHR Signal Transduction Pathway, NCI Thesaurus/BIOCARTA)

This allele, which encodes NAD(P)H dehydrogenase [quinone] 1 protein, plays a role in the reduction of quinones to hydroquinones.

(NQO1 wt Allele, NCI Thesaurus)