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Pack Size:100μg/vial
Validated Species:Human
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Product Name Anti-BCRP/ABCG2 Antibody
SKU/Catalog Number PA1869
Description Rabbit IgG polyclonal antibody for ATP-binding cassette sub-family G member 2(ABCG2) detection. Tested with WB in Human.
Cite This Product Anti-BCRP/ABCG2 Antibody (Boster Biological Technology, Pleasanton CA, USA, Catalog # PA1869)
Replacement Item This antibody may replace the following items: sc-25821|sc-58224|sc-58222|sc-130933|sc-377176|sc-69988|sc-69989|sc-18841|sc-25822|sc-25156 from Santa Cruz Biotechnology.
Host Rabbit
Isotype N/A
Validated Species Human
Application WB

*Our Boster Guarantee covers the use of this product in the above tested applications.

**For positive and negative control design, consult "Tissue specificity" under Protein Target Info.

Recommended Detection Systems Boster recommends Enhanced Chemiluminescent Kit with anti-Rabbit IgG (EK1002) for Western blot.
*Blocking peptide can be purchased at $50. Contact us for more information
**Boster also offers various secondary antibodies for Immunoflourescecne and IHC. Take advantage of the buy 1 primary antibody get 1 secondary antibody for free promotion for the entire year 2018!
Immunogen A synthetic peptide corresponding to a sequence in the middle region of human BCRP/ABCG2(154-168aa NHEKNERINRVIQEL).
Cross Reactivity No cross reactivity with other proteins
Pack Size 100μg/vial


Clonality Polyclonal
Form Lyophilized
Contents Each vial contains 5mg BSA, 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg Thimerosal, 0.05mg NaN3.
Concentration Add 0.2ml of distilled water will yield a concentration of 500ug/ml.
Storage At -20°C for one year. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for a longer time.Avoid repeated freezing and thawing.
Purification Immunogen affinity purified.
Isotype N/A

Protein Target Info (Source:

You can check the tissue specificity below for information on selecting positive and negative control.

Gene Name ABCG2
Protein Name ATP-binding cassette sub-family G member 2
Molecular Weight 72314 MW
Protein Function High-capacity urate exporter functioning in both renal and extrarenal urate excretion. Plays a role in porphyrin homeostasis as it is able to mediates the export of protoporhyrin IX (PPIX) both from mitochondria to cytosol and from cytosol to extracellular space, and cellular export of hemin, and heme. Xenobiotic transporter that may play an important role in the exclusion of xenobiotics from the brain. Appears to play a major role in the multidrug resistance phenotype of several cancer cell lines. Implicated in the efflux of numerous drugs and xenobiotics: mitoxantrone, the photosensitizer pheophorbide, camptothecin, methotrexate, azidothymidine (AZT), and the anthracyclines daunorubicin and doxorubicin. .
Tissue Specificity Highly expressed in placenta. Low expression in small intestine, liver and colon. .
Sequence Similarities Belongs to the ABC transporter superfamily. ABCG family. Eye pigment precursor importer (TC 3.A.1.204) subfamily.
Subcellular Localization Cell membrane; Multi-pass membrane protein. Mitochondrion membrane; Multi-pass membrane protein.
Uniprot ID Q9UNQ0
Alternative Names ATP-binding cassette sub-family G member 2;Breast cancer resistance protein;CDw338;Mitoxantrone resistance-associated protein;Placenta-specific ATP-binding cassette transporter;Urate exporter;CD338;ABCG2;ABCP, BCRP, BCRP1, MXR;
Research Areas |tags & cell markers|cell type markers|tumor associated| signal transduction|metabolism|plasma membrane|atpases| stem cells|neural stem cells|surface molecules|hematopoietic progenitors|drug metabolism| cancer|drug resistance|mrp-related proteins| metabolism|pathways and processes|metabolic signaling pathways|types of disease|
*if product is indicated to react with multiple species, protein info is based on the human gene.

Background for ATP-binding cassette sub-family G member 2

ABCG2(Atp-binding cassette, subfamily g, member 2) also known as ABCP, BCRP or MRX, is a protein that in humans is encoded by the ABCG2 gene. The ABCG2 gene encodes a membrane transporter belonging to the ATP-binding cassette(ABC) superfamily of membrane transporters, which are involved in the trafficking of biologic molecules across cell membranes. The ABCG2 protein is also a high capacity transporter for uric acid excretion in the kidney, liver, and gut. The ABCG2 gene is mapped on 4q22.1. In vitro assays of isolated membrane preparations revealed a high-capacity, vanadate-sensitive ATPase activity associated with ABCG2 expression that was stimulated by compounds known to be transported by this protein. Ozvegy et al.(2001) concluded that ABCG2 is likely functioning as a homodimer or homooligomer in this expression system since it is unlikely that putative Sf9 transport partners would be overexpressed at similarly high levels.Abcg2 transports pheophorbide-a, which occurs in various plant-derived foods and food supplements and is highly efficient in limiting its uptake from ingested food. ABCG2 is a major factor in the concentrative transfer of drugs, carcinogens, and dietary toxins to the milk of mice, cows, and humans.

Anti-BCRP/ABCG2 Antibody Images

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Anti-BCRP/ABCG2 Antibody
Anti-BCRP/ABCG2 antibody, PA1869, Western blotting
All lanes: Anti BCRP/ABCG2 (PA1869) at 0.5ug/ml
Lane 1: HELA Whole Cell Lysate at 40ug
Lane 2: SW620 Whole Cell Lysate at 40ug
Lane 3: MCF-7 Whole Cell Lysate at 40ug
Lane 4: SKOV Whole Cell Lysate at 40ug
Lane 5: JURKAT Whole Cell Lysate at 40ug
Predicted bind size: 72KD
Observed bind size: 72KD
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Wang Nn, Zhao Lj, Wu Ln, He Mf, Qu Jw, Zhao Yb, Zhao Wz, Li Js, Wang Jh. Asian Pac J Cancer Prev. 2013;14(9):4983-8. Mechanistic Analysis Of Taxol-Induced Multidrug Resistance In An Ovarian Cancer Cell Line.
Qiao B, Johnson Nw, Chen X, Li R, Tao Q, Gao J. Oncol Rep. 2011 Aug;26(2):455-61. Doi: 10.3892/Or.2011.1299. Epub 2011 May 10. Disclosure Of A Stem Cell Phenotype In An Oral Squamous Cell Carcinoma Cell Line Induced By Bmp-4 Via An Epithelial-Mese...
Duan J, Mansour Hm, Zhang Y, Deng X, Chen Y, Wang J, Pan Y, Zhao J. Int J Pharm. 2012 Apr 15;426(1-2):193-201. Doi: 10.1016/J.Ijpharm.2012.01.020. Epub 2012 Jan 17. Reversion Of Multidrug Resistance By Co-Encapsulation Of Doxorubicin And Curcumin ...
Li R, Wu X, Wei H, Tian S. Oncol Lett. 2013 Mar;5(3):877-883. Epub 2013 Jan 2. Characterization Of Side Population Cells Isolated From The Gastric Cancer Cell Line Sgc-7901.

Customer Q&As

Q: Do you offer BSA-free antibodies? Keyword: Bovine serum albumin, carrier protein, conjugation
A: Yes, please contact us at for more information about BSA-free antibodies and availability. The new BSA-free formula uses trehalose as a replacement to BSA. We have tested many alternative chemicals and found that trehalose protects the antibodies the best.
Q: Is your western blot protocol provided from the website applicable for all your antibodies? Keyword: applications, WB
A: The protocol is applicable for all our antibodies in WB, the NC Membrane(0.45μm or 0.22μm) and transfer time(70 mins or 50 mins) depends on the protein molecular weight, details can be found in included protocol.
Q: Can I conjugate markers to this antibody? Can I link custom conjugates to this antibody? Keyword: conjugation
A: The antibody is stored with BSA and cannot be conjugated with markers. Carrier free antibodies are available upon request. Please contact
Q: What should I use for negative control?
A: Please contact us for negative control suggestions. You can also check expression databases such as genecards, uniprot etc. Due to logistic reasons, we do not sell serum or lysates that we use internally for positive or negative control.
Q: Where can I find troubleshooting information? What should I do if I have unexpected bands, high background, no signal, weak signal
A: You can find Boster's troubleshoot guides under tech support tab. Please contact us for further assistance on troubleshooting your experiment.
Q: What is the immunogen sequence of this antibody? Is this antibody polyclonal or monoclonal?
A: You can find the immunogen sequence under "Immunogen" and clonality in the product name.
Q: What is the expected band size? Why is it different than the observed band size?
A: The expected band size is predicted on the size of the protein. The actual band size may be affected by a few other factors including but not limited to:
1. Post-translational modification:phosphorylation, methylation, glycosylation etc. These modifications prevent SDS molecules from binding to the target protein and thus make the band size appear larger than expected
2. Post-translational cleavage: this can cause smaller bands and or multiple bands

3. Alternative splicing: the same gene can have alternative splicing patterns generating different size proteins, all with reactivities to the antibody.

4. Amino Acid R chain charge: SDS binds to positive charges. The different size and charge of the Amino Acid side chains can affect the amount of SDS binding and thus affect the observed band size.
5. Multimers: Multimers are usually broken up in reducing conditions. However if the interactions between the multimers are strong, the band may appear higher.,
Q: What is the suggested dilution ratio for Western Blot (WB), Immunohistochemistry (IHC) and or ELISA standards? What is the optimal pH for the sample?
A: Check the datasheet for the product for details on dilution ratios for different experiments. You can find the datasheet button on the right side of the product page.
Q: What is the protocol you used for your Western blotting (WB) and Immunohistochemistry (IHC)?
A: Check our protocols under the tech support tab.
Q: What are some alternative names that could be used to describe this product?
A: Some common names include but are not limited to abcg2 antibody, bcrp antibody