Biolegend, 102812, Ultra-LEAF™ Purified anti-mouse CD40 Antibody, 1mg

CD40 is a 48 kD type I transmembrane glycoprotein, also known as Bp50. It is a member of the tumor necrosis factor receptor (TNFR) superfamily and is expressed on B cells, basal epithelial cells, macrophages, follicular dendritic cells, endothelial cells, and a subset of CD34 + hematopoietic progenitors. CD40 regulates B cell development/maturation, Ig isotype switching and, in combination with other signals such as IL-4, protects B cells from surface Ig-induced apoptosis and promotes proliferation. Interaction of CD40 with its ligand CD154 (gp39), which is expressed on activated T cells, is important in costimulation and immune regulation.
1mg
Verified Reactivity: Mouse
Antibody Type: Monoclonal
Host Species: Rat
Formulation: 0.2 µm filtered in phosphate-buffered solution, pH 7.2, containing no preservative.
Endotoxin Level: Less than 0.01 EU/µg of the protein (< 0.001 ng/µg of the protein) as determined by the LAL test.
Preparation: The Ultra-LEAF™ (Low Endotoxin, Azide-Free) antibody was purified by affinity chromatography.
Concentration: The antibody is bottled at the concentration indicated on the vial, typically between 2 mg/mL and 3 mg/mL. Older lots may have also been bottled at 1 mg/mL. 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. This Ultra-LEAF™ solution contains no preservative; handle under aseptic conditions.
Application: FC - Quality testedCostim, Block, IP - Reported in the literature, not verified in house
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 ≤ 1.0 µg per million cells in 100 µl volume or 100 µl of whole blood. It is recommended that the reagent be titrated for optimal performance for each application.
Application Notes: The 1C10 antibody has been reported to stimulate B cell proliferation and block CD40-CD40L interactions. Additional reported applications (for the relevant formats) include: immunoprecipitation, blocking5,6 of CD40 ligand binding, and in vitro stimulation of B cell proliferation1-3. The LEAF™ purified antibody (Endotoxin <0.1 EU/µg, Azide-Free, 0.2 µm filtered) is recommended for functional assays (Cat. No. 102810). For highly sensitive assays, we recommend Ultra-LEAF™ purified antibody (Cat. No. 102812) with a lower endotoxin limit than standard LEAF™ purified antibodies (Endotoxin <0.01 EU/µg).
Application References(PubMed link indicates BioLegend citation): Ferlin WG, et al. 1998. Eur. J. Immunol. 28:525. (FC, Costim) Ferlin WG, et al. 1996. Eur. J. Immunol. 26:2911. (Costim) Heath A, et al. 1994. Eur. J. Immunol. 24:1828. (Costim) Ashman RF, et al. 2005. Int. Immunol. 17:411. Pelßez B, et al. 2001. J. Immunol. 166:6608. (Block) Zhang P, et al. 2007. J. Immunol. 178:474. (Block) Lawson BR, et al. 2007. J. Immunol. 178:5366. Ponomarev ED, et al. 2007. J.Immunol.178:39. PubMed
Product Citations: Deobagkar-Lele M, et al. 2024. Sci Immunol. eadd4874:9. PubMed Gómez Hernández G, et al. 2024. JCI Insight. . PubMed Kodali S, et al. 2022. J Immunol. 208:1085. PubMed
RRID: AB_2783043 (BioLegend Cat. No. 102811) AB_2561489 (BioLegend Cat. No. 102812)
Structure: TNFR superfamily, 48 kD
Distribution: B cells, basal epithelial cells, macrophages, follicular dendritic cells, endothelial cells, CD34+ hematopoietic progenitors
Function: Stimulates B cell growth, differentiation and isotype switching, stimulates macrophage and dendritic cell cytokine production
Ligand/Receptor: CD40L (CD154)
Cell Type: B cells, Dendritic cells, Endothelial cells, Epithelial cells, Hematopoietic stem and progenitors, Macrophages
Biology Area: Cell Biology, Immunology, Neuroscience, Neuroscience Cell Markers, Costimulatory Molecules
Molecular Family: CD Molecules
Antigen References: 1. Barclay A, et al. 1997. The Leukocyte Antigen FactsBook Academic Press. 2. Bancherou J, et al. 1994. Annu. Rev. Immunol. 12:881. 3. Clark EA, et al. 1996. P. Natl. Acad. Sci. USA 83:4494.
Gene ID: 21939
UniProt: View information about CD40 on UniProt.org
Clone: 1C10
Regulatory Status: RUO
Other Names: Bp50, TNFRSF5
Isotype: Rat IgG2a, κ
Q: Do you guarantee that your antibodies are totally pathogen free?
A: BioLegend does not test for pathogens in-house aside from the GoInVivo™ product line. However, upon request, this can be tested on a custom basis with an outside, independent laboratory.
Q: Does BioLegend test each Ultra-LEAF™ antibody by functional assay?
A: No, BioLegend does not test Ultra-LEAF™ antibodies by functional assays unless otherwise indicated. Due to the possible complexities and variations of uses of biofunctional antibodies in different assays and because of the large product portfolio, BioLegend does not currently perform functional assays as a routine QC for the antibodies. However, we do provide references in which the antibodies were used for functional assays and we do perform QC to verify the specificity and quality of the antibody based on our strict specification criteria.
Q: Does BioLegend test each Ultra-LEAF™ antibody for potential pathogens?
A: No, BioLegend does not test for pathogens in-house unless otherwise indicated.  However, we can recommend an outside vendor to perform this testing as needed.
Q: Have you tested this Ultra-LEAF™ antibody for in vivo or in vitro applications?
A: We don't test our antibodies for in vivo or in vitro applications unless otherwise indicated. Depending on the product, the TDS may describe literature supporting usage of a particular product for bioassay. It may be best to further consult the literature to find clone specific information.