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Key Documents

A5251

Sigma-Aldrich

3-Acetylpyridine adenine dinucleotide

≥85%

Synonym(s):

3 -Acetyl NAD, APADH, APAD

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About This Item

Empirical Formula (Hill Notation):
C22H28N6O14P2
CAS Number:
Molecular Weight:
662.44
MDL number:
UNSPSC Code:
41106305
PubChem Substance ID:
NACRES:
NA.51

biological source

Porcine brain

Quality Level

Assay

≥85%

form

powder

solubility

water: 50 mg/mL, clear, colorless to faintly yellow

storage temp.

−20°C

SMILES string

CC(=O)c1ccc[n+](c1)[C@@H]2O[C@H](COP([O-])(=O)OP(O)(=O)OC[C@H]3O[C@H]([C@H](O)[C@@H]3O)n4cnc5c(N)ncnc45)[C@@H](O)[C@H]2O

InChI

1S/C22H28N6O14P2/c1-10(29)11-3-2-4-27(5-11)21-17(32)15(30)12(40-21)6-38-43(34,35)42-44(36,37)39-7-13-16(31)18(33)22(41-13)28-9-26-14-19(23)24-8-25-20(14)28/h2-5,8-9,12-13,15-18,21-22,30-33H,6-7H2,1H3,(H3-,23,24,25,34,35,36,37)/t12-,13-,15-,16-,17-,18-,21-,22-/m1/s1

InChI key

KPVQNXLUPNWQHM-RBEMOOQDSA-N

General description

3-Acetylpyridine adenine dinucleotide is a crystalline solid. 3-Acetylpyridine adenine dinucleotide is a prominent electron transporter in various enzymatic activities in which it is alternately oxidized. APAD has a more significant oxidation potential than NAD. NAD analogues, APAD, were electrochemically more effectively reduced than genuine NAD, and the stability of their reduced products was also significantly higher than NADH. In transhydrogenation processes with NADH or NADPH, APAD also operates as a proton acceptor.

Application

Many molecules use 3-Acetylpyridine adenine dinucleotide as a signaling molecule, cofactor, or substrate. Various dehydrogenase processes use APAD instead of NAD as a hydrogen-accepting cofactor. The oxidative phosphorylation can be studied with ADAP. ADAP can also be used as a suitable substrate.

Biochem/physiol Actions

APAD is an NAD analog with higher oxidation potential than NAD. It can substitute for NAD as a hydrogen-accepting cofactor in many dehydrogenase reactions; e.g. lactate dehydrogenase from Toxoplasma, Clonorchis, and Plasmodium, bacterial lipoamide dehydrogenase, as well as mammalian dehydrogenases. It can also act as a proton acceptor in various transhydrogenation reactions with NADH or NADPH.

Linkage

Analog of NAD

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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N V Zakharova
Biochemistry. Biokhimiia, 67(6), 651-661 (2002-07-20)
The kinetics of the NADH-->3;-acetylpyridine adenine dinucleotide (APAD+) transhydrogenase reaction (DD-reaction) catalyzed by different preparations of mitochondrial NADH-dehydrogenase (submitochondrial particles (SMP), purified Complex I, and three-subunit fragment of Complex I (FP)) have been studied. Complex I (in SMP or in
A model of Plasmodium falciparum lactate dehydrogenase and its implications for the design of improved antimalarials and the enhanced detection of parasitaemia.
R B Sessions et al.
Protein engineering, 10(4), 301-306 (1997-04-01)
Guang Yang et al.
Parasitology research, 99(1), 55-64 (2006-02-16)
From a Clonorchis sinensis adult worm cDNA library, we isolated a cDNA clone encoding a novel lactate dehydrogenase (LDH) gene which encoded a putative protein with a predicted molecular weight of 35.6 kDa. The optimum pH and temperature for the
C Diggle et al.
European journal of biochemistry, 241(1), 162-170 (1996-10-01)
Transhydrogenase comprises three domains. Domains I and III are peripheral to the membrane and possess the NAD(H)- and NADP(H)-binding sites, respectively, and domain II spans the membrane. Domain III of transhydrogenase from Rhodospirillum rubrum was expressed at high levels in
C Dando et al.
Molecular and biochemical parasitology, 118(1), 23-32 (2001-11-13)
Toxoplasma gondii differentially expresses two forms of lactate dehydrogenase in tachyzoites and bradyzoites, respectively, designated LDH1 and LDH2. Previously it was demonstrated that LDH1 and LDH2 share a unique structural feature with LDH from the malarial parasite Plasmodium falciparum (pLDH)

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