ABCG2 in JAR Human Cell Line. ATP-Binding Cassette Transporter G2 (ABCG2) was detected in immersion fixed JAR human choriocarcinoma cell line using Mouse Anti-Human ABCG2 Monoclonal Antibody (Catalog # MAB995) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 493-conjugated Anti-Mouse IgG Secondary Antibody (green; Catalog # NL009) and counterstained with DAPI (blue). View our protocol for Fluorescent ICC Staining of Cells on Coverslips.
ABCG2 in Human ABCG2 transfected CHO Chinese Hamster Cell Line. ABCG2 was detected in immersion fixed Human ABCG2 transfected CHO Chinese hamster ovary cell line using Mouse Anti-Human ABCG2 Monoclonal Antibody (Catalog # MAB995) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Mouse IgG Secondary Antibody (red; Catalog # NL007) and counterstained with DAPI (blue). View our protocol for Fluorescent ICC Staining of Cells on Coverslips.
Preparation and Storage
Reconstitute at 0.5 mg/mL in sterile PBS.
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
Hematopoietic stem cells are known to express a membrane transporter molecule, known as P-glycoprotein (Pgp), that is encoded by the multidrug resistance gene 1 (MDR1) (1, 2). Expression of Pgp appears to confer a proliferative advantage to stem cells through its anti-apoptotic effects (3, 4). An additional transporter molecule known as ABCG2 (ATP-binding cassette gene 2) or Bcrp1 (Breast cancer resistance protein 1), first identified in a breast cancer cell line (5), is expressed on stem cells (6). ABCG2 belongs to a family of molecules that span the cell membrane six times and can exist as either homo or hetero dimers linked by a short intracellular flexible linker region that plays an important role in the efflux of a wide range of substrates (7, 8). Although these transporter molecules have initially been thought to play a role in drug resistance, they have been found to have utility in better characterizing primitive stem cells. For example, the “side-population” of hematopoietic stem cells, characterized by their inability to retain high levels of the intracellular staining dyes Hoechst 33342 and Rhodamine 123, has been found to express high levels of ABCG2. Of interest is the observation that ABCG2 function has been linked to the efflux of the Hoechst dye (6). Furthermore, there is now evidence that this monoclonal can be used as a cell surface marker to identify hematopoietic stem cells within the bone marrow fraction of lineage negative cells (6). The expression of ABCG2 appears greatest on CD34- cells and is downregulated with the acquisition of CD34 on the cell surface (6).
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Sorrentino, B.P. et al. (1995) Blood 86:491.
Pallis, M. and N. Russell (2000) Blood 95:2897.
Johnstone, R.W. et al. (1999) Blood 93:1075.
Doyle, L.A. et al. (1998) Proc. Natl. Acad. Sci. USA 95:15665.
Zhou, S. et al. (2001) Nat. Medicine 7:1028.
Hrycyna, C.A. et al. (1998) Biochem. 37:13660.
Bunting, K.D. (2002) Stem Cells 20:11.
ATP-binding Cassette Transporter G2
Entrez Gene IDs:
ABC transporter; ABC15; ABCP; ABCPMGC102821; ATP-binding cassette sub-family G member 2; ATP-binding cassette transporter G2; ATP-binding cassette, sub-family G (WHITE), member 2; BCRP; BCRP1; BCRPMRX; BMDP; Breast cancer resistance protein; CD338 antigen; CD338; CDw338; EST157481; mitoxantrone resistance protein; Mitoxantrone resistance-associated protein; MXR; MXRMXR1; placenta specific MDR protein; Placenta-specific ATP-binding cassette transporter
R&D Systems personnel manually curate a database that contains references using R&D Systems products.
The data collected includes not only links to publications in PubMed,
but also provides information about sample types, species, and experimental conditions.
CD molecules 2006--human cell differentiation molecules. Authors: Zola H, Swart B, Banham A, Barry S, Beare A, Bensussan A, Boumsell L, D Buckley C, Buhring HJ, Clark G, Engel P, Fox D, Jin BQ, Macardle PJ, Malavasi F, Mason D, Stockinger H, Yang X J. Immunol. Methods, 2007;319(1):1-5. Species: Human Sample Type: Whole Cells Application: Flow
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