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A3263

Sigma-Aldrich

Alcohol Dehydrogenase from Saccharomyces cerevisiae

greener alternative

powder, ≥300 units/mg protein, mol wt ~141,000 (four subunits)

Sinonimo/i:

ADH1, ADH, Alcohol Dehydrogenase from yeast, Alcohol:NAD+ oxidoreductase

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About This Item

Numero CAS:
Classificazione EC (Enzyme Commission):
Numero CE:
Numero MDL:
Codice UNSPSC:
12352204
NACRES:
NA.54

Origine biologica

bakers yeast

Forma fisica

powder

Attività specifica

≥300 units/mg protein

PM

~141,000 (four subunits)

Purificato mediante

crystallization

Condizioni di stoccaggio

(Tightly closed. Dry)

Caratteristiche più verdi

Waste Prevention
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

Colore

beige

pH ottimale

8.6-9.0

Compatibilità

suitable for recycling micro-assay of β-NAD and β-NADH

N° accesso UniProt

Categoria alternativa più verde

Temperatura di conservazione

−20°C

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Descrizione generale

Research area: Neuroscience

Yeast alcohol dehydrogenase 1 (ADH1) belongs to the family of zinc-containing alcohol dehydrogenases. It is a homotetramer with each subunit containing one catalytic domain and coenzyme-binding domain.

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency and waste prevention when used in fuel cell research. For more information see the article in biofiles.

Applicazioni

Alcohol Dehydrogenase from Saccharomyces cerevisiae has been used for the determination of NAD+ and NADH concentrations.

Azioni biochim/fisiol

ADH (alcohol dehydrogenase) is one of the first enzymes to be isolated and purified. NAD+ is its coenzyme. Three isozymes of yeast ADH, that is, yeast alcohol dehydrogenase-1, 2 and 3 (YADH-1, -2, -3) have been identified. YADH-1 is expressed during anaerobic fermentation, YADH-2 is expressed in the cytoplasm and YADH-3 is localized to the mitochondria. A 141kDa tetramer containing 4 equal subunits. The active site of each subunit contains a zinc atom. Each active site also contains 2 reactive sulfhydryl groups and a histidine residue.

Isoelectric point: 5.4-5.8

Optimal pH: 8.6-9.0

Substrates: Yeast ADH is most active with ethanol and its activity decreases as the size of the alcohol increases or decreases. Branched chain alcohols and secondary alcohols also have very low activity.

KM (ethanol) = 2.1 × 10-2 M
KM (methanol = 1.3 × 10-1 M
KM (isopropanol) = 1.4 × 10-1 M

Inhibitors: Compounds that react with free sulfhydryls, including N-alkylmaleimides and iodoacetamide.
Zinc chelator inhibitors, including 1,10-phenanthroline,
8-hydroxyquinoline, 2,2′-dipyridyl, and thiourea.
Substrate analogue inhibitors, including β-NAD analogs, purine and pyrimidine derivatives, chloroethanol, and fluoroethanol.

Extinction Coefficient: E1% = 14.6 (water, 280 nm)
Yeast alcohol dehydrogenase 1 (YADH1) catalyzes the conversion of acetaldehyde to ethanol during glucose fermentation pathway. It is also implicated in the production of alcohol from amino acid breakdown via the Ehrlich pathway.

Specifiche

The dried enzyme has been stored for several weeks in a vacuum desiccator with little loss in activity. According to experiments described by A. Kornberg,3 the enzyme can be stored in the frozen state and can be thawed repeatedly without marked loss of activity.

Definizione di unità

One unit will convert 1.0 μmole of ethanol to acetaldehyde per min at pH 8.8 at 25 °C.

Stato fisico

Solids containing <2% citrate buffer salts

Pittogrammi

Health hazard

Avvertenze

Danger

Indicazioni di pericolo

Consigli di prudenza

Classi di pericolo

Resp. Sens. 1

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)


Certificati d'analisi (COA)

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The role of zinc in alcohol dehydrogenase. V. The effect of metal-binding agents on thestructure of the yeast alcohol dehydrogenase molecule.
J H KAGI et al.
The Journal of biological chemistry, 235, 3188-3192 (1960-11-01)
Liang Tian et al.
Microbial cell factories, 16(1), 171-171 (2017-10-06)
Pyruvate decarboxylase (PDC) is a well-known pathway for ethanol production, but has not been demonstrated for high titer ethanol production at temperatures above 50 °C. Here we examined the thermostability of eight PDCs. The purified bacterial enzymes retained 20% of activity
Zsofia Komary et al.
Biochimica et biophysica acta, 1777(7-8), 800-807 (2008-06-05)
Release of H(2)O(2) in response to Ca(2+) loads (1-100 microM) was investigated using Amplex red fluorescent assay in isolated guinea-pig brain mitochondria respiring on glutamate plus malate or succinate. In mitochondria challenged with Ca(2+) (10 microM), in the absence of
L Tretter et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 20(24), 8972-8979 (2000-01-11)
In this study we addressed the function of the Krebs cycle to determine which enzyme(s) limits the availability of reduced nicotinamide adenine dinucleotide (NADH) for the respiratory chain under H(2)O(2)-induced oxidative stress, in intact isolated nerve terminals. The enzyme that
Sexual dimorphism in acute myocardial infarction-induced acute kidney injury: cardiorenal deteriorating effects of ovariectomy in premenopausal female mice
Nada J Habeichi, et al.
Clinical Science (London, England : 1979), 137(1), 47-63 (2023)

Protocolli

This procedure may be used for Alcohol Dehydrogenase products.

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