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H9408

Sigma-Aldrich

β-Hydroxybutyrate Dehydrogenase from Pseudomonas lemoignei

lyophilized powder, ≥200 units/mg protein

Synonyme(s) :

(R)-3-Hydroxybutanoate:NAD+ oxidoreductase, 3-HBDH

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About This Item

Numéro CAS:
9028-38-0
Numéro de classification (Commission des enzymes):
1.1.1.30 (BRENDA, IUBMB)
Numéro MDL:
MFCD00130633
Code UNSPSC :
12352204
Nomenclature NACRES :
NA.54

Source biologique

bacterial (Pseudomonas lemoignei)

Niveau de qualité

200

Forme

lyophilized powder

Activité spécifique

≥200 units/mg protein

Produit purifié par

chromatography

Activité étrangère

lactic dehydrogenase ≤0.05%
malic dehydrogenase ≤0.1%

Température de stockage

−20°C

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Description générale

D-β-hydroxybutyrate dehydrogenase (BDH) is a membrane bound lipid-requiring enzyme.

Application

β-Hydroxybutyrate Dehydrogenase from Pseudomonas lemoignei has been used in coupled assay to confirm the formation of acetoacetate.
Suitable for the determination of acetoacetate and D(-)-3-hydroxybutyrate by the method of Williamson, D. H., and Mellanby, J., Methods of Enzymatic Analysis, Bergmeyer, H., ed., 2nd edition, 4, 1836 (1974).

Actions biochimiques/physiologiques

In Paracoccus denitrificans, 3-hydroxybutyrate dehydrogenase plays a key role in the degradation of intracellular polyhydroxybutyrate and polyhydroxyvalerate.
In mammalian systems, β-hydroxybutyrate dehydrogenase is localized on the inner mitochondrial membrane and requires phosphatidyl choline for activity. In contrast, the enzyme from Pseudomonas is a soluble cytosolic enzyme that does not require a phospholipid allosteric activator. The enzyme is required for the utilization of ketone bodies as a source of metabolic energy. It catalyzes the oxidation of 3-hydroxybutyrate to acetoacetate, the first step in the conversion of ketone bodies to citric acid, which is then further metabolized via the tricarboxylic acid cycle (Krebs cycle).

Définition de l'unité

One unit will oxidize 1.0 μmole of D-β-hydroxybutyrate to acetoacetate per min at pH 7.8 at 37 °C.

Forme physique

lyophilized powder containing sucrose, β-NAD and Tris buffer salts

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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D-beta-HYDROXYBUTYRATE DEHYDROGENASE: A MOLECULAR BIOLOGY APPROACH TO THE STUDY OF A LIPID-REQUIRING ENZYME
Structure and Function of Membrane Proteins, 283-300 (1983)
3-Hydroxybutyrate oligomer hydrolase and 3-hydroxybutyrate dehydrogenase participate in intracellular polyhydroxybutyrate and polyhydroxyvalerate degradation in Paracoccus denitrificans
Lu J, et al.
Applied and Environmental Microbiology, 80(3), 986-993 (2014)
W Hugo Ramos-Vera et al.
Journal of bacteriology, 193(5), 1201-1211 (2010-12-21)
Two autotrophic carbon fixation cycles have been identified in Crenarchaeota. The dicarboxylate/4-hydroxybutyrate cycle functions in anaerobic or microaerobic autotrophic members of the Thermoproteales and Desulfurococcales. The 3-hydroxypropionate/4-hydroxybutyrate cycle occurs in aerobic autotrophic Sulfolobales; a similar cycle may operate in autotrophic
The specific molecular architecture of plant 3-hydroxy-3-methylglutaryl-CoA lyase
Hemmerlin A, et al.
The Journal of biological chemistry, 80(3) (2019)
Michel A Sciotti et al.
Chimia, 64(11), 793-798 (2011-01-05)
Gamma hydroxybutyric acid (GHB) is a regulated therapeutic drug, which naturally occurs in mammalian brain tissues as an intermediate of the GABA (gamma aminobutyric acid) neurotransmitter metabolism. The increasing misuse of GHB as a narcotic or abusing drug in recent
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