Human Lgr5/GPR49 Alexa Fluor® 488-conjugated Antibody Summary
Accession # O75473
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Detection of Lgr5/GPR49 in NS0 Mouse Cell Line Transfected with Human Lgr5/GPR49 by Flow Cytometry. NS0 mouse myeloma cell line transfected with human Lgr5/GPR49 was stained with Mouse Anti-Human Lgr5/GPR49 Alexa Fluor® 488‑conjugated Monoclonal Antibody (Catalog # FAB8078G, filled histogram) or Mouse IgG2A Isotype Control (Catalog # IC003G, open histogram). View our protocol for Staining Membrane-associated Proteins.
Preparation and Storage
- 12 months from date of receipt, 2 to 8 °C as supplied.
Leucine‑rich repeat G‑protein‑coupled receptor 5 (Lgr5), also called GPR49, is a 907 amino acid (aa), approximately 97 kDa (calculated), seven‑transmembrane glycoprotein receptor in the Lgr family of cell surface receptors. The subfamily of Lgrs comprising Lgr4, Lgr5, and Lgr6 are G‑protein‑independent mediators of the potentiating effect of R‑Spondins on Wnt signaling (2). Lgr5 binds and forms complexes with R‑Spondins, Frizzled Wnt receptors and LRP Wnt co‑receptors. The region of the human Lgr5 long extracellular domain used as an immunogen shares 90% amino acid sequence identity with mouse and rat Lgr5, respectively. Lgr5 is found on embryonic and adult epithelial stem cells (3). Lgr5+ stem cells can produce all epithelial cell types of the intestinal crypts (4). Abnormal LGR5 expression and regulation in stem cells might give rise to cancers such as intestinal, hepatocellular, pancreatic and ovarian carcinomas (5,6). This antibody has been referred to as "RD42" in Peng et al. (1).
- Peng et al. (2013) Cell Rep. 3(6):1885.
- de Lau et al. (2014) Genes Dev. 28(4):305.
- Barker et al. (2013) Development 140(12):2484.
- Clevers (2013) Nature 495(7439):53.
- Wu et al. (2014) Nat Commun 5:3149.
- Jang et al. (2013) PLoS One 8(12): e82390495.
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