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MAB4334

Sigma-Aldrich

Anti-MDR1 Antibody, conformational extracellular epitope, clone UIC2

clone UIC2, Chemicon®, from mouse

Synonym(s):

P-glycoprotein, CD243, p170, Pgp

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41

biological source

mouse

Quality Level

antibody form

purified immunoglobulin

antibody product type

primary antibodies

clone

UIC2, monoclonal

species reactivity

primate, human

should not react with

rat, mouse

manufacturer/tradename

Chemicon®

technique(s)

flow cytometry: suitable
immunofluorescence: suitable
immunohistochemistry (formalin-fixed, paraffin-embedded sections): suitable
immunoprecipitation (IP): suitable

isotype

IgG2aκ

NCBI accession no.

UniProt accession no.

shipped in

wet ice

Gene Information

human ... ABCB1(5243)

General description

UIC2 is a mouse monoclonal antibody directed against the extracellular conformational epitope of P-glycoprotein (Pgp). This antibody can be used in flow cytometry, immunofluorescence microscopy and immunohistochemistry in frozen and paraffin sections to detect Pgp expression on the membrane of MDR1 positive cells. In functional experiments, UIC2 was shown to inhibit Pgp-mediated efflux activity and potentiate the cytotoxic effects of chemotherapy drugs transported by Pgp. Additionally, the UIC2 monoclonal antibody can be used in combination with MDR1 substrates for simulatenaeous detection of Pgp expression and function by flow cytometry (MILLIPORE′s UIC2 Shift assay - see product ECM905).

Specificity

P-glycoprotein encoded by the MDR1 gene (ABCB1; LocusLink ID: 5243)

Immunogen

Epitope: conformational extracellular epitope
Mouse BALB/c 3T3 fibroblasts transfected with human MDR1 cDNA, followed by a multistep selection of tranfectants for resistance to vinblastine.

Application

Anti-MDR1 Antibody, conformational extracellular epitope, clone UIC2 detects level of MDR1 & has been published & validated for use in FC, IF, IP, IH, IH(P).
Inhibition of P-glycoprotein efflux activity in functional experiments: 10 - 100 μg/mL, varies in different systems.

Immunoprecipitation: 5 - 10 fold molar excess of UIC2 over the expected Pgp concentration; realistically, 1 - 5 μg per 1 mL of cell lysate.

Flow Cytometry (conventional and UIC2 Shift assay): depends highly on Pgp expression by target cells; usually, 0.1 μg/mL for low Pgp expressors and 1 μg/mL for high Pgp expressors.

Immunofluorescence: depends highly on Pgp expression by target cells; usually, 0.1 ug/ml for low Pgp expressors and 1 μg/mL for high Pgp expressors.

IHC on frozen and paraffin sections: 1 - 10 μg/mL.

Optimal working dilutions must be determined by end user.
Research Category
Metabolism
Research Sub Category
Toxicology & Drug Resistance

Physical form

Format: Purified
The immunoglobulin was purified by protein A Sepharose chromatography and is presented as a liquid in in 0.1M PBS, containing 0.1% sodium azide as a preservative.

Storage and Stability

Maintain at 2-8°C for up 12 months from date of receipt.

Other Notes

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

Legal Information

CHEMICON is a registered trademark of Merck KGaA, Darmstadt, Germany
Sepharose is a trademark of Cytiva

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class Code

10 - Combustible liquids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Levels of multidrug resistance (MDR1) P-glycoprotein expression by human breast cancer correlate with in vitro resistance to taxol and doxorubicin.
Mechetner, E, et al.
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Iva Guberović et al.
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Multidrug resistance (MDR) is a widespread phenomenon exhibited by many cancers and represents a fundamental obstacle for successful cancer treatments. Tumour cells commonly achieve MDR phenotype through overexpression and/or increased activity of ABC transporters. P-glycoprotein transporter (P-gp, ABCB1) is a

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