Biolegend, 347324, APC/Fire™ 750 anti-human CD115 (CSF-1R) Antibody, 100tests

CSF-1R, also known as CD115 and M-CSFR, is a single-pass type I membrane protein and member of the platelet-derived growth factor receptor family. Structural studies of CD115 have described an Ig-like extracellular domain, a transmembrane domain, an intracellular juxtamembrane domain, a split tyrosine kinase domain, and a C-terminal tail receptor. Receptor activation induces homodimerization in addition to phosphorylation and ubiquitinylation of intracellular residues. The natural ligands of CD115 include M-CSF and IL-34. CD115 directly influences tissue macrophage and osteoclast differentiation and proliferation. It is expressed on monocytes/macrophages, plasmacytoid and conventional dendritic cells, and osteoclasts.
100tests
Verified Reactivity: Human
Reported Reactivity: African Green, Baboon, Cynomolgus, Rhesus
Antibody Type: Monoclonal
Host Species: Rat
Immunogen: C-fms transduced Kirsten strain murine sarcoma virus transformed NRK cells.
Formulation: Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide and BSA (origin USA)
Preparation: The antibody was purified by affinity chromatography and conjugated with APC/Fire™ 750 under optimal conditions.
Concentration: Lot-specific (to obtain lot-specific concentration and expiration, please enter the lot number in our Certificate of Analysis online tool.)
Storage & Handling: The antibody solution should be stored undiluted between 2°C and 8°C, and protected from prolonged exposure to light. Do not freeze.
Application: FC - Quality tested
Recommended Usage: Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is 5 µL per million cells in 100 µL staining volume or 5 µL per 100 µL of whole blood. * APC/Fire™ 750 has a maximum excitation of 650 nm and a maximum emission of 774 nm.
Excitation Laser: Red Laser (633 nm)
Application Notes: It has been reported that CD115 can be rapidly internalized, especially when samples are exposed to room temperature. Approximate 33% decrease in CD115 expression has been observed between 0 and 4 hours after sample collection, while overnight incubation of the cells results in complete CD115 downregulation. Pre-treatment with EDTA and low temperatures (2 to 8°C) helps in maintaining surface expression of CD1151.
Application References(PubMed link indicates BioLegend citation): Breslin WL, et al. 2013. J Immunol Methods. 390(1-2):1 PubMed
Product Citations: Lu J, et al. 2021. Front Immunol. 12:732612. PubMed
RRID: AB_2734354 (BioLegend Cat. No. 347323) AB_2734355 (BioLegend Cat. No. 347324)
Structure: Single-pass type I membrane protein and is 150 kD.
Distribution: Monocytes/macrophages, plasmacytoid and conventional dendritic cells, and osteoclasts.
Ligand/Receptor: Macrophage Colony Stimulating Factor (M-CSF) and IL-34.
Cell Type: Dendritic cells, Macrophages, Monocytes, Osteoclasts
Biology Area: Immunology
Molecular Family: CD Molecules, Cytokine/Chemokine Receptors
Antigen References: 1. Sherr CJ, et al. 1989. Blood 73:1786 2. Roussel MF, et al. 1991. Nature 353:361. 3. Roussel MF, et al. 1989 P. Natl. Acad. Sci. USA 86:7924.
Gene ID: 1436
UniProt: View information about CD115 on UniProt.org
Clone: 9-4D2-1E4
Regulatory Status: RUO
Workshop: V MA199
Other Names: M-CSFR,CSF-1R, FMS, CSF-1 Receptor
Isotype: Rat IgG1, κ
Q: Why do I have a weak CD115 staining?
A: It has been reported that CD115 can be rapidly internalized, especially when samples are exposed to room temperature. Approximate 33% decrease in CD115 expression has been observed between 0 and 4 hours after sample collection, while overnight incubation of the cells results in complete CD115 downregulation.  Pre-treatment with EDTA and low temperatures (2 - 8°C) helps in maintaining surface expression of CD115. In addition, brief fixation of the cells with Fixation Buffer (Cat. No. 420801) for 10 minutes will block CD115 internalization.