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B3687

Sigma-Aldrich

Biliverdin Reductase A human

recombinant, expressed in E. coli, ≥90% (SDS-PAGE), buffered aqueous solution

Synonyme(s) :

BLVRA, BVRA, Bilirubin: NAD(P)+ oxidoreductase

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About This Item

Code UNSPSC :
12352200
Nomenclature NACRES :
NA.32

Produit recombinant

expressed in E. coli

Niveau de qualité

Pureté

≥90% (SDS-PAGE)

Forme

buffered aqueous solution

Activité spécifique

≥700 units/mg protein

Conditions d'expédition

dry ice

Température de stockage

−20°C

Informations sur le gène

human ... BLVRA(644)

Description générale

Research area: IMMUNO AND CKS. Biliverdinreductase A (BVRA) is an isozyme of the biliverdin reductase. It is a cellsurface membrane receptor. BVRA consists of two major regions, theregulatory/DNA interaction domain and catalytic domain.

Application

Biliverdin Reductase Ahuman has been used as a component of the incubation medium to evaluate theactivity of hemeoxygenase 1. It has also been used as a standard todetermine the age of the bleed from haemorrhagic lesion.

Actions biochimiques/physiologiques

Biliverdin reductase catalyzes the transformation of the blue-green pigment biliverdin IX to the yellow-orange bile pigment bilirubin IX by converting a double-bond between the second and third pyrrole ring into a single-bond. This enzyme has two distinct cofactor-dependent pH optima. In the acidic range of pH 6.0-6.7, NADH is utilized, whereas in the alkaline range of pH 8.5-8.7, NADPH is utilized. Biliverdin reductase is considered a major physiologic cytoprotectant. Biliverdin reductase suppresses experimental autoimmune encephalomyelitis in rats. Depletion of biliverdin reductase leads to accumulation of cellular oxidants and augmented cell death.Biliverdin reductase (BVR)modulates the functions of insulin via the insulin-like growth factor 1 (IGF-1)pathway. It shows dual specificity kinases where it phosphorylates tyrosineapart from serine and threonine. BVR acts as a biomarker in certain cancers.

Définition de l'unité

1 unit of biliverdin reductase will trans­form 1 nanomole of biliverdin to bilirubin per minute in an NADPH dependent reaction at pH 8.5 using 100 mM K-phosphate buffer at 37 °C.

Forme physique

Solution containing 20 mM potassium phosphate buffer, 10% glycerol, 0.2% Igepal CA630, 1 mM EDTA, and 0.1 mM DTT.

Code de la classe de stockage

12 - Non Combustible Liquids

Classe de danger pour l'eau (WGK)

WGK 2

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


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Kristin A Kirkby et al.
American journal of physiology. Renal physiology, 290(3), F563-F571 (2006-02-08)
Heme oxygenase 1 (HO-1) is induced in response to cellular stress and is responsible for converting the prooxidant heme molecule into equimolar quantities of biliverdin (BV), carbon monoxide (CO), and iron. BV is then converted to bilirubin (BR) by the
W Uerkvitz et al.
The Journal of biological chemistry, 256(1), 382-389 (1981-01-10)
Three periplasmic nucleoside monophosphate-splitting phosphatases from Salmonella typhimurium, 2':3'-cyclic nucleotide 2'-phosphodiesterase, nonspecific acid phosphatase I, and nonspecific acid phosphatase II, were separated by column chromatography. They are characterized with respect to their substrate specificities, Km values, pH optima, molecular weights
Elina M Sutinen et al.
Frontiers in cellular neuroscience, 8, 214-214 (2014-08-26)
Chronic inflammation and oxidative stress (OS) are present in Alzheimer's disease (AD) brains in addition to neuronal loss, Amyloid-β (Aβ) plaques and hyperphosphorylated tau-protein neurofibrillary tangles (NFTs). Previously we showed that levels of the pro-inflammatory cytokine, interleukin-18 (IL-18), are elevated
Ali Abbasi et al.
Nutrition and cancer, 73(10), 2003-2013 (2020-09-15)
To assess the effect of sequential treatment with Vitamin C (VC) and Quercetin (Q) on Nrf2-related oxidative stress in PC3 and DU145 cells, viability was measured by MTT assay. Intracellular ROS levels were determined, using 2'-7'-dichlorodihydrofluorescein diacetate fluorescent as a
Luke O'Brien et al.
Trends in endocrinology and metabolism: TEM, 26(4), 212-220 (2015-03-03)
The biliverdin reductase (BVR) isozymes BVRA and BVRB are cell surface membrane receptors with pleiotropic functions. This review compares, for the first time, the structural and functional differences between the isozymes. They reduce biliverdin, a byproduct of heme catabolism, to

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