Description
The CD4 antibody, clone SK3, is derived from the hybridization of mouse NS-1 myeloma cells with spleen cells from BALB/c mice immunized with human peripheral blood T lymphocytes.The CD4 antibody recognizes a 55-kilodalton (kDa) glycoprotein that is present on T-helper/inducer lymphocytes and monocytes.


Specifications

General

Verified ReactivityHuman
Reported ReactivityAfrican Green, Baboon, Cynomolgus, Rhesus
Antibody TypeMonoclonal
Host SpeciesRat
ImmunogenC-fms transduced Kirsten strain murine sarcoma virus transformed NRK cells.
FormulationPhosphate-buffered solution, pH 7.2, containing 0.09% sodium azide and BSA (origin USA)
PreparationThe antibody was purified by affinity chromatography and conjugated with APC/Fire™ 750 under optimal conditions.
ConcentrationLot-specific (to obtain lot-specific concentration and expiration, please enter the lot number in our Certificate of Analysis online tool.)
Storage & HandlingThe antibody solution should be stored undiluted between 2°C and 8°C, and protected from prolonged exposure to light. Do not freeze.
ApplicationFC - Quality tested
Recommended UsageEach 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 LaserRed Laser (633 nm)
Application NotesIt 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 CitationsLu J, et al. 2021. Front Immunol. 12:732612. PubMed
RRIDAB_2734354 (BioLegend Cat. No. 347323) AB_2734355 (BioLegend Cat. No. 347324)
StructureSingle-pass type I membrane protein and is 150 kD.
DistributionMonocytes/macrophages, plasmacytoid and conventional dendritic cells, and osteoclasts.
Ligand/ReceptorMacrophage Colony Stimulating Factor (M-CSF) and IL-34.
Cell TypeDendritic cells, Macrophages, Monocytes, Osteoclasts
Biology AreaImmunology
Molecular FamilyCD Molecules, Cytokine/Chemokine Receptors
Antigen References1. 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 ID1436
UniProtView information about CD115 on UniProt.org
Clone9-4D2-1E4
Regulatory StatusRUO
WorkshopV MA199
Other NamesM-CSFR,CSF-1R, FMS, CSF-1 Receptor
IsotypeRat IgG1, κ