Human Lgr5/GPR49 Alexa Fluor® 488-conjugated Antibody

Published as Clone RD42
Catalog # Availability Size / Price Qty
Human Lgr5/GPR49 Alexa Fluor® 488-conjugated Antibody in Flow Cytometry
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Human Lgr5/GPR49 Alexa Fluor® 488-conjugated Antibody Summary

Species Reactivity
Detects human Lgr5/GPR49 in ELISA. Stains human and mouse Lgr5 transfected cells but not irrelevant transfectants in Flow Cytometry and Immunocytochemistry. This antibody, also known as "RD42", has been found to detect an epitope in C-terminal LRR cap of LGR5 (Ref. 1).
Monoclonal Mouse IgG2A Clone # 707042
Protein A or G purified from hybridoma culture supernatant
Chinese hamster ovary cell line CHO-derived recombinant human Lgr5/GPR49
Accession # O75473
Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.
Alexa Fluor 488


Recommended Concentration
Flow Cytometry
0.25-1 µg/106 cells
See below

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.

Data Example

Flow Cytometry Detection of Lgr5/GPR49 in NS0 Mouse Cell Line Transfected with Human Lgr5/GPR49 by Flow Cytometry. View Larger

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.

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Preparation and Storage

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Protect from light. Do not freeze.
  • 12 months from date of receipt, 2 to 8 °C as supplied.

Background: Lgr5/GPR49

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).

  1. Peng et al. (2013) Cell Rep. 3(6):1885.
  2. de Lau et al. (2014) Genes Dev. 28(4):305.
  3. Barker et al. (2013) Development 140(12):2484.
  4. Clevers (2013) Nature 495(7439):53.
  5. Wu et al. (2014) Nat Commun 5:3149.
  6. Jang et al. (2013) PLoS One 8(12): e82390495.
Long Name
Leucine-rich Repeat Containing G Protein-coupled Receptor 5
Entrez Gene IDs
8549 (Human); 14160 (Mouse); 299802 (Rat); 102120216 (Cynomolgus Monkey)
Alternate Names
FEX; G protein-coupled receptor 49; GPR49; GPR49G-protein coupled receptor HG38; GPR67; G-protein coupled receptor 49; G-protein coupled receptor 67; GRP49; HG38; leucine-rich repeat containing G protein-coupled receptor 5; leucine-rich repeat-containing G protein-coupled receptor 5; leucine-rich repeat-containing G-protein coupled receptor 5; Lgr5; MGC117008; orphan G protein-coupled receptor HG38

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