Product: LGR5 Antibody
Catalog: AF4102
Description: Rabbit polyclonal antibody to LGR5
Application: WB
Reactivity: Human, Mouse
Mol.Wt.: 95kd; 100kD(Calculated).
Uniprot: O75473
RRID: AB_2835369

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Product Info

WB 1:500-1:1000
*The optimal dilutions should be determined by the end user.

WB: For western blot detection of denatured protein samples. IHC: For immunohistochemical detection of paraffin sections (IHC-p) or frozen sections (IHC-f) of tissue samples. IF/ICC: For immunofluorescence detection of cell samples. ELISA(peptide): For ELISA detection of antigenic peptide.

LGR5 Antibody detects endogenous levels of total LGR5.
Cite Format: Affinity Biosciences Cat# AF4102, RRID:AB_2835369.
The antiserum was purified by peptide affinity chromatography using SulfoLink™ Coupling Resin (Thermo Fisher Scientific).
Supplied at 1.0mg/mL in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. Store at -20 °C. Stable for 12 months from date of receipt.


FEX; G protein coupled receptor 49; G protein coupled receptor 67; g protein-coupled receptor fex; G-protein coupled receptor 49; G-protein coupled receptor 67; G-protein coupled receptor HG38; GPR 49; GPR 67; GPR49; GPR67; GRP 49; GRP49; HG 38; HG38; Leucine rich repeat containing G protein coupled receptor 5; Leucine-rich repeat-containing G-protein coupled receptor 5; LGR 5; LGR5; LGR5_HUMAN; MGC117008; Orphan G protein coupled receptor HG38;


O75473 LGR5_HUMAN:

Expressed in skeletal muscle, placenta, spinal cord, and various region of brain. Expressed at the base of crypts in colonic and small mucosa stem cells. In premalignant cancer expression is not restricted to the cript base. Overexpressed in cancers of the ovary, colon and liver.

Orphan receptor. Stem cell marker of the intestinal epithelium and the hair follicule. Target gene of Wnt signaling.

PTMs - O75473 As Substrate

Site PTM Type Enzyme
Y114 Phosphorylation
N208 N-Glycosylation
Y387 Phosphorylation
S590 Phosphorylation
S721 Phosphorylation
T722 Phosphorylation
T842 Phosphorylation
S844 Phosphorylation
S848 Phosphorylation
S851 Phosphorylation
S854 Phosphorylation
S861 Phosphorylation
S864 Phosphorylation

Research Backgrounds


Receptor for R-spondins that potentiates the canonical Wnt signaling pathway and acts as a stem cell marker of the intestinal epithelium and the hair follicle. Upon binding to R-spondins (RSPO1, RSPO2, RSPO3 or RSPO4), associates with phosphorylated LRP6 and frizzled receptors that are activated by extracellular Wnt receptors, triggering the canonical Wnt signaling pathway to increase expression of target genes. In contrast to classical G-protein coupled receptors, does not activate heterotrimeric G-proteins to transduce the signal. Involved in the development and/or maintenance of the adult intestinal stem cells during postembryonic development.

Subcellular Location:

Cell membrane>Multi-pass membrane protein. Golgi apparatus>trans-Golgi network membrane>Multi-pass membrane protein.
Note: Rapidly and constitutively internalized to the trans-Golgi network at steady state. Internalization to the trans-Golgi network may be the result of phosphorylation at Ser-861 and Ser-864; however, the phosphorylation event has not been proven (PubMed:23439653).

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionSubcellular location
Tissue Specificity:

Expressed in skeletal muscle, placenta, spinal cord, and various region of brain. Expressed at the base of crypts in colonic and small mucosa stem cells. In premalignant cancer expression is not restricted to the cript base. Overexpressed in cancers of the ovary, colon and liver.

Subunit Structure:

Identified in a complex composed of RNF43, LGR5 and RSPO1. Also interacts with other R-spondin ligands, including RSPO2, RSPO3 and RSPO4.


Belongs to the G-protein coupled receptor 1 family.


1). ITGB1 enhances the Radioresistance of human Non-small Cell Lung Cancer Cells by modulating the DNA damage response and YAP1-induced Epithelial-mesenchymal Transition. International Journal of Biological Sciences, 2023 (PubMed: 33613118) [IF=9.2]

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