Human Lgr5/GPR49 APC-conjugated Antibody

Catalog #: FAB8078A Datasheet / COA / SDS

Published as Clone RD42

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FAB8078A

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

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Human Lgr5/GPR49 APC-conjugated Antibody Summary

Species Reactivity

Human

Specificity

Detects human Lgr5/GPR49 in ELISAs. 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 the C-terminal LRR cap of Lgr5 (Ref. 1).

Source

Monoclonal Mouse IgG_2A Clone # 707042

Purification

Protein A or G purified from hybridoma culture supernatant

Immunogen

Chinese hamster ovary cell line CHO-derived recombinant human Lgr5/GPR49
Met1-Ile560
Accession # O75473

Formulation

Supplied in a saline solution containing BSA and Sodium Azide.

Label

Allophycocyanin (Excitation= 620-650 nm, Emission= 660-670 nm)

Applications

Recommended Concentration

Sample

Flow Cytometry

10 µL/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.

Scientific Data

Flow Cytometry

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Detection of Lgr5/GPR49 in NS0 Mouse Cell Line Transfected with Human Lgr5/GPR49 and eGFP by Flow Cytometry. NS0 mouse myeloma cell line transfected with human Lgr5/GPR49 and eGFP was stained with either (A) Mouse Anti-Human Lgr5/GPR49 APC-conjugated Monoclonal Antibody (Catalog # FAB8078A) or (B) Mouse IgG_2AAllophycocyanin Isotype Control (Catalog # IC003A). View our protocol for Staining Membrane-associated Proteins.

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Preparation and Storage

Shipping

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).

References

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.

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