Human Lgr5/GPR49 Antibody

Published as Clone RD42
Catalog # Availability Size / Price Qty
MAB8078
MAB8078-SP
Human Lgr5/GPR49 Antibody in Flow Cytometry
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Product Details
Citations (2)
FAQs
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Human Lgr5/GPR49 Antibody Summary

Species Reactivity
Human
Specificity
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).
Source
Monoclonal Mouse IgG2A 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
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Flow Cytometry
2.5 µg/106 cells
See below
Agonist Activity
Peng, W.C., et al. (2013) Cell Reports. 3:1885.
 
CyTOF-ready
Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.
 
Immunocytochemistry
8-25 µg/mL
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 Examples

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

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 and either (A) Mouse Anti-Human Lgr5/GPR49 Monoclonal Antibody (Catalog # MAB8078) or (B) Mouse IgG2A Isotype Control (Catalog # MAB003) followed by Allophycocyanin-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # F0101B).

Immunocytochemistry Lgr5/GPR49 in NSO Mouse Cell Line Transfected with Human Lgr5/GPR49. View Larger

Lgr5/GPR49 in NSO Mouse Cell Line Transfected with Human Lgr5/GPR49. Lgr5/GPR49 was detected in immersion fixed NSO mouse myeloma cell line transfected with GFP (green) tagged human LGR5 using Mouse Anti-Human Lgr5/GPR49 Monoclonal Antibody (Catalog # MAB8078) 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). Specific staining was localized to cytoplasm. View our protocol for Fluorescent ICC Staining of Non-adherent Cells.

Immunocytochemistry Lgr5/GPR49 in HEK293 Human Cell Line Transfected with Mouse Lgr5/GPR49. View Larger

Lgr5/GPR49 in HEK293 Human Cell Line Transfected with Mouse Lgr5/GPR49. Lgr5/GPR49 was detected in immersion fixed HEK293 human embryonic kidney cell line transfected with GFP (green) tagged mouse LGR5 using Mouse Anti-Human Lgr5/GPR49 Monoclonal Antibody (Catalog # MAB8078) 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). Specific staining was localized to cell surfaces and cytoplasm. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.

Immunocytochemistry Lgr5/GPR49 in Human Cells Transfected with Human Lgr5/GPR49. View Larger

Lgr5/GPR49 in Human Cells Transfected with Human Lgr5/GPR49. Lgr5/GPR49 was detected in MYC tagged human transfectants using Mouse Anti-Human Lgr5/GPR49 Monoclonal Antibody (Catalog # MAB8078). Cells were stained using an anti-mouse HRP-conjugated secondary antibody (brown). Specific staining was localized to cytoplasm. Image courtesy of Dr. Hans Clevers, Hubrecht Institute, The Netherlands.

Immunocytochemistry Lgr5/GPR49 in Mouse Cells Transfected with Mouse Lgr5/GPR49. View Larger

Lgr5/GPR49 in Mouse Cells Transfected with Mouse Lgr5/GPR49. Lgr5/GPR49 was detected in immersion fixed MYC tagged mouse transfectants using Mouse Anti-Human Lgr5/GPR49 Monoclonal Antibody (Catalog # MAB8078). Cells were stained using an anti-mouse HRP-conjugated secondary antibody (brown). Specific staining was localized to cytoplasm. Image courtesy of Dr. Hans Clevers, Hubrecht Institute, The Netherlands.

Agonist Activity Human Lgr5/GPR49 Antibody Induces Activity. View Larger

Human Lgr5/GPR49 Antibody Induces Activity. Mouse Anti-Human Lgr5/GPR49 Monoclonal Antibody (Catalog # MAB8078) induces TOPflash activity in the HEK293 human embryonic kidney cell line stably expressing LGR5 in the presence of Wnt-3a, but in the absence of R-Spondins. (Data courtesy of  Dr. Wim de Lau and Dr. Hans Clevers, Hubrecht Institute, The Netherlands. See Reference 1.)

Reconstitution Calculator

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Preparation and Storage

Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
Shipping
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.

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
  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

Product Datasheets

Citations for Human Lgr5/GPR49 Antibody

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.

2 Citations: Showing 1 - 2
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  1. Activin A-mediated epithelial de-differentiation contributes to injury repair in an in vitro gastrointestinal reflux model
    Authors: C Roudebush, A Catala-Val, T Andl, GF Le Bras, CD Andl
    Cytokine, 2019;123(0):154782.
    Species: Human
    Sample Types: Whole Tissue
    Applications: IHC-P
  2. Musashi-1 promotes a cancer stem cell lineage and chemoresistance in colorectal cancer cells
    Authors: GY Chiou, TW Yang, CC Huang, CY Tang, JY Yen, MC Tsai, HY Chen, N Fadhilah, CC Lin, YJ Jong
    Sci Rep, 2017;7(1):2172.
    Species: Human
    Sample Types: Cell Lysates
    Applications: Western Blot

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