Description
F4/80 antigen is a cell surface glycoprotein that is the murine homolog of human EGF-like module-containing mucin-like hormone receptor-like 1 (EMR1) (1,2). Specifically, F4/80 (EMR1) is one of five members belonging to the adhesion G-coupled receptor (ADGRE) subfamily, also known as the epidermal growth factor seven transmembrane (EGF-TM7) receptors (1,2). F4/80 is expressed by the myeloid lineage including in eosinophils, monocytes, macrophages, and myeloid dendritic cells (1,2). The molecular structure of F4/80 contains an EGF-like extracellular domain and a seven transmembrane motif, with a theoretical molecular weight of 160 kDa (1).
Depending on factors such as differentiation, activation, and location, the level of F4/80 expression can vary between cell-types (1,2). For example, peritoneal macrophages are subdivided based on morphology and expression with large peritoneal macrophages having high levels of F4/80 and small peritoneal macrophages having low F4/80 expression (1). Furthermore, splenic macrophages are classified based on location (red pulp, marginal zone, and white pulp) and F4/80 expression level varies within these populations as well; the red pulp macrophages have high levels of F4/80 and CD68 by comparison (1). Originally, the F4/80 monoclonal antibody was generated for a macrophage-specific surface antigen, however F4/80 staining is also observed in other hematopoietic cell populations, thus other immune cell markers should be used in conjunction with F4/80 to distinguish between different populations (1). Though the full extent of F4/80 ligands and biological functions remains elusive, studies have suggested that F4/80 is critical for macrophage-natural killer cell interaction and cytokine release (1,2). Additionally, a study of anterior chamber-associated immune deviation (ACAID) indicated a possible role for F4/80 in the generation of regulatory T cells (1,2).
References
1. Dos Anjos Cassado A. (2017). F4/80 as a Major Macrophage Marker: The Case of the Peritoneum and Spleen. Results and Problems in Cell Differentiation. https://doi.org/10.1007/978-3-319-54090-0_7
2. Hamann, J., Hsiao, C. C., Lee, C. S., Ravichandran, K. S., & Lin, H. H. (2016). Adhesion GPCRs as Modulators of Immune Cell Function. Handbook of Experimental Pharmacology. https://doi.org/10.1007/978-3-319-41523-9_15
Bioinformatics
| Entrez |
Mouse
Human
Rat
|
| Uniprot |
Mouse
|
| Product By Gene ID |
13733 |
| Alternate Names |
- ADGRE1
- cell surface glycoprotein F4/80
- DD7A5-
- DD7A5-7
- EGF-like module containing, mucin-like, hormone receptor-like sequence 1
- EGF-like module receptor 1
- EGF-like module-containing mucin-like hormone receptor-like 1
- EGF-TM7
- Emr
- EMR1 hormone receptor
- Emr1
- F4/80
- Gpf480
- Ly7
- Ly71
- lymphocyte antigen 71
- Mouse EMR1
- Rat EMR1
- TM7L
- TM7LN3
|
![Flow Cytometry F4/80 Antibody (521204) [Unconjugated]](http://images.novusbio.com/fullsize2/F4_80_MAB5580_Flow_Cytometry_8534.jpg)
![Immunocytochemistry F4/80 Antibody (521204) [Unconjugated]](http://images.novusbio.com/fullsize2/mab5580_mouse-f4-80-emr1-mab-clone-521204-immunocytochemistry-265202215820.jpg)
