Anti-Human CD338 (ABCG2) Functional Grade Purified

Description: The 5D3 monoclonal antibody reacts with the extracellular portion of the human ABCG2 protein, also known as Bcrp1 and MXR. The ABCG2 gene, a member of the multi-drug resistance (MDR) family, is highly expressed on primitive ‘side-population’ (SP) stem cells, which are defined by the efflux of fluorescent dyes such as Rhodamine 123 and Hoechest 33342. In the bone marrow, about 0.05% of cells display the low fluorescence and are highly enriched for repopulating cells. The SP cells, which express low or undetectable levels of CD34, have been identified in multiple species. In addition, expression of ABCG2 appears to be highly conserved.

References: Basseville A, Tamaki A, Ierano C, Trostel S, Ward Y, Robey RW, Hegde RS, Bates SE. Histone deacetylase inhibitors influence chemotherapy transport by modulating expression and trafficking of a common polymorphic variant of the ABCG2 efflux transporter. Cancer Res. 2012 Jul 15;72(14):3642-51. (5G3,FCPubMed)

Kim M, Turnquist H, Jackson J, Sgagias M, Yan Y, Gong M, Dean M, Sharp JG, Cowan K. The multidrug resistance transporter ABCG2 (breast cancer resistance protein 1) effluxes Hoechst 33342 and is overexpressed in hematopoietic stem cells. Clin Cancer Res. 2002 Jan;8(1):22-8.

Scharenberg CW, Harkey MA, Torok-Storb B.. The ABCG2 transporter is an efficient Hoechst 33342 efflux pump and is preferentially expressed by immature human hemtopoietic progenitors. Blood. 2002 Jan 15;99(2):507-12.

Zhou S, Schuetz JD, Bunting KD, Colapietro AM, Sampath J, Morris JJ, Lagutina I, Grosveld GC, Osawa M, Nakauchi H, Sorrentino BP. The ABC transporter Bcrp1/ABCG2 is expressed in a wide variety of stem cells and is a molecular determinant of the side-population phenotype. Nat Med. 2001 Sep;7(9):1028-34.

Goodell MA, Rosenzweig M, Kim H, Marks DF, DeMaria M, Paradis G, Grupp SA, Sieff CA, Mulligan RC, Johnson RP. Dye efflux studies suggest that hematopoietic stem cells expressing low or undetectable levels of CD34 antigen exist in multiple species. Nat Med. 1997 Dec;3(12):1337-45.