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Merck

SBAT07

Sigma-Aldrich

Mdr1b Rat

membrane preparation for ATPase Assays, recombinant, expressed in baculovirus infected Sf9 cells

Synonym(e):

Abcb1b, SB-ratMdr1b-Sf9-ATPase, p-glycoprotein, rodent multidrug resistance protein

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About This Item

UNSPSC-Code:
12352202
NACRES:
NA.84

Rekombinant

expressed in baculovirus infected Sf9 cells

Form

liquid

Konzentration

5 mg/mL

Farbe

off-white

UniProt-Hinterlegungsnummer

Versandbedingung

dry ice

Lagertemp.

−70°C

Angaben zum Gen

Allgemeine Beschreibung

Membrane Preparations for ATPase Assays are suitable for drug-efflux transporter interaction studies based on ATPase activity determination, and could be used for differentiation between transporter substrates and inhibitors.

Anwendung

The ATPase assay is an in vitro membrane assay designed to indicate the nature of the interaction between the compound and the transporter. By measuring ATPase activity, both activation and inhibition of transporters can be investigated using membranes from baculovirus-infected insect cells or mammalian cell membranes containing high levels of human or rodent wild-type transporters. ABC transporters mediate the transport of substrates against a concentration gradient using energy derived from ATP hydrolysis, which is proportional to the transporter activity and could easily be detected with a colorimetric method.

To assess activation, ABC transporter-rich membranes are incubated with various (typically in 8) concentrations of the test article and the effect on basal ATPase activity is measured. Compounds that stimulate ATPase are generally considered substrates for the transporter. To assess inhibition, a test article′ ability to modify the activity of a given ABC transporter stimulated with its prototypical substrates is examined. The activation and inhibition tests are complementary assays.

Stimulation detected in the activation assay indicate that the compound is a transported substrate of the transporter, while interactions detected in the inhibition test indicate interaction of the test compounds with the transporter, but do not give information on the nature (substrate or inhibitor) of the interaction. In some cases inhibitors or slowly transported compounds may inhibit the baseline transporter ATPase activity as well.

Slowly transported substrates often do not stimulate the ATPase activity in a detectable extent; however the existing interaction can be identified in the inhibition assay.

Physikalische Form

Supplied as frozen membrane vesicles, containing 5 mg/ml membrane protein, labeled with volume, catalog number (transporter) and date of production.

Rechtliche Hinweise

Distributed for SOLVO Biotechnology, Inc.

Lagerklassenschlüssel

12 - Non Combustible Liquids

WGK

WGK 1

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable


Analysenzertifikate (COA)

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In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.

Die Dokumentenbibliothek aufrufen

Siegfried Drescher et al.
British journal of clinical pharmacology, 53(5), 526-534 (2002-05-08)
The C3435T polymorphism in the human MDR1 gene is associated with lower intestinal P-glycoprotein expression, reduced protein function in peripheral blood cells and higher plasma concentrations of the P-glycoprotein substrate digoxin. Using fexofenadine, a known P-glycoprotein substrate, the hypothesis was
Zsuzsanna Rajnai et al.
Drug metabolism and disposition: the biological fate of chemicals, 38(11), 2000-2006 (2010-08-12)
Seliciclib, a cyclin-dependent kinase inhibitor, is a promising candidate to treat a variety of cancers. Pharmacokinetic studies have shown high oral bioavailability but limited brain exposure to the drug. This study shows that seliciclib is a high-affinity substrate of ATP-binding
Drug-drug interactions of new active substances: mibefradil example.
M Siepmann et al.
European journal of clinical pharmacology, 56(3), 273-273 (2000-08-22)
R B Wang et al.
Journal of clinical pharmacy and therapeutics, 28(3), 203-228 (2003-06-11)
A large number of structurally and functionally diverse compounds act as substrates or modulators of p-glycoprotein (p-gp). Some of them possess multiple drug resistance (MDR)-reversing activity, but only a small number of them have entered clinical study. In order to
MDR1, the blood-brain barrier transporter, is associated with Parkinson's disease in ethnic Chinese.
C G L Lee et al.
Journal of medical genetics, 41(5), e60-e60 (2004-05-04)

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