CD40 is a type I transmembrane glycoprotein belonging to the TNF receptor superfamily. The mature hCD40 consists of a 172 amino acid (aa) extracellular domain, a 22 aa transmembrane region and a 62 aa cytoplasmic domain (1). Human and mouse CD40 share 62% aa identity. CD40 is expressed in B cells, follicular dendritic cells, dendritic cells, activated monocytes, macrophages, endothelial cells, vascular smooth muscle cells, and several tumor cell lines (2). The extracellular domain has the cysteine-rich repeat regions, which are characteristic for many of the receptors of the TNF superfamily. Interaction of CD40 with its ligand, CD40L, leads to aggregation of CD40 molecules, which in turn interact with cytoplasmic components to initiate signaling pathways. Early studies on the CD40-CD40L system revealed its role in humoral immunity. Interaction between CD40L on T cells and CD40 on B cells stimulated B cell proliferation and provided the signal for immunoglobulin isotype switching (3). Mutations in the CD40L gene, which resulted in a CD40L molecule unable to interact with CD40, are responsible for the hyper-IgM syndrome (4). Cross-linking of CD40 with antibodies or by CD40 binding to CD40L produces cell type-specific responses which include costimulation and induction of proliferation, induction of cytokine production, rescue from apoptosis, and upregulation of adhesion molecules (5). Some of the early events of intracellular signaling by the
CD40‑CD40L system include the association of the CD40 with TRAFs and the activation of various kinases (6‑8).
Human CD40/TNFRSF5 Antibody (82111)
R&D Systems | Catalog # MAB6321
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Key Product Details
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Label
Antibody Source
Product Specifications
Immunogen
Glu21-Arg193
Accession # P25942
Specificity
Clonality
Host
Isotype
Endotoxin Level
Scientific Data Images for Human CD40/TNFRSF5 Antibody (82111)
CD40/TNFRSF5 in Human PBMCs.
CD40/TNFRSF5 was detected in immersion fixed human peripheral blood mononuclear cells (PBMCs) using Mouse Anti-Human CD40/TNFRSF5 Monoclonal Antibody (Catalog # MAB6321) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Mouse IgG Secondary Antibody (red; Catalog # NL007) and counterstained with DAPI (blue). Specific staining was localized to cell surfaces and cytoplasm. View our protocol for Fluorescent ICC Staining of Non-adherent Cells.Human CD40/TNFRSF5 Antibody Stimulates Cell Proliferation in Human B Cells.
Mouse Anti-Human CD40/TNFRSF5 Monoclonal Antibody (Catalog # MAB6321) stimulates human B cell proliferation in the presence of Recombinant Human IL-4 (Catalog # 204-IL) in a dose-dependent manner, as measured by Resazurin (Catalog # AR002). The ED50 for this effect is typically 0.035-0.175 µg/mLDetection of CD40/TNFRSF5 in PBMC lymphocytes by Flow Cytometry
PBMC lymphocytes were stained with Mouse Anti-Human CD19 APC‑conjugated Monoclonal Antibody (Catalog # FAB4867A) and either (A) Mouse Anti-Human CD40/TNFRSF5 Monoclonal Antibody (Catalog # MAB6321) or (B) isotype control antibody (Catalog # MAB0041) followed by Phycoerythrin-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # F0102B). View our protocol for Staining Membrane-associated Proteins.Applications for Human CD40/TNFRSF5 Antibody (82111)
Agonist Activity
CyTOF-ready
Flow Cytometry
Sample: Human whole blood CD19+ B cells
Immunocytochemistry
Sample: Immersion fixed human peripheral blood mononuclear cells (PBMCs)
Reviewed Applications
Read 1 review rated 4 using MAB6321 in the following applications:
Flow Cytometry Panel Builder
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Advanced Features
- Spectra Viewer - Custom analysis of spectra from multiple fluorochromes
- Spillover Popups - Visualize the spectra of individual fluorochromes
- Antigen Density Selector - Match fluorochrome brightness with antigen density
Formulation, Preparation, and Storage
Purification
Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.
Formulation
Shipping
Stability & Storage
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Calculators
Background: CD40/TNFRSF5
References
- Torres, R.M. and E.A. Clark (1992) J. Immunol. 148:620.
- Schonbeck, U. et al. (1997) J. Biol. Chem. 272:19569.
- Armitage, R.J. et al. (1993) J. Immunol. 150:3671.
- Callard, R.E. et al. (1993) Immunol. Today 14:559.
- Stout, R.D. and J. Suttles (1996) Immunol. Today 17:487.
- Pullen, S.S. et al. (1999) Biochemistry 38:10168.
- Faris, M. et al. (1994) J. Exp. Med. 179:1923.
- Hanissian, S.H. and R.S Geha (1997) Immunity 6:379.
Alternate Names
Gene Symbol
UniProt
Additional CD40/TNFRSF5 Products
Product Documents for Human CD40/TNFRSF5 Antibody (82111)
Certificate of Analysis
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Product Specific Notices for Human CD40/TNFRSF5 Antibody (82111)
For research use only
Related Research Areas
Citations for Human CD40/TNFRSF5 Antibody (82111)
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Protocols
Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.
- 7-Amino Actinomycin D (7-AAD) Cell Viability Flow Cytometry Protocol
- Appropriate Fixation of IHC/ICC Samples
- Cellular Response to Hypoxia Protocols
- ClariTSA™ Fluorophore Kits
- Detection & Visualization of Antibody Binding
- Extracellular Membrane Flow Cytometry Protocol
- Flow Cytometry Protocol for Cell Surface Markers
- Flow Cytometry Protocol for Staining Membrane Associated Proteins
- Flow Cytometry Staining Protocols
- Flow Cytometry Troubleshooting Guide
- ICC Cell Smear Protocol for Suspension Cells
- ICC Immunocytochemistry Protocol Videos
- ICC for Adherent Cells
- Immunocytochemistry (ICC) Protocol
- Immunocytochemistry Troubleshooting
- Immunofluorescence of Organoids Embedded in Cultrex Basement Membrane Extract
- Immunohistochemistry (IHC) and Immunocytochemistry (ICC) Protocols
- Intracellular Flow Cytometry Protocol Using Alcohol (Methanol)
- Intracellular Flow Cytometry Protocol Using Detergents
- Intracellular Nuclear Staining Flow Cytometry Protocol Using Detergents
- Intracellular Staining Flow Cytometry Protocol Using Alcohol Permeabilization
- Intracellular Staining Flow Cytometry Protocol Using Detergents to Permeabilize Cells
- Preparing Samples for IHC/ICC Experiments
- Preventing Non-Specific Staining (Non-Specific Binding)
- Primary Antibody Selection & Optimization
- Propidium Iodide Cell Viability Flow Cytometry Protocol
- Protocol for Liperfluo
- Protocol for VisUCyte™ HRP Polymer Detection Reagent
- Protocol for the Characterization of Human Th22 Cells
- Protocol for the Characterization of Human Th9 Cells
- Protocol for the Fluorescent ICC Staining of Cell Smears - Graphic
- Protocol for the Fluorescent ICC Staining of Cultured Cells on Coverslips - Graphic
- Protocol for the Preparation and Fluorescent ICC Staining of Cells on Coverslips
- Protocol for the Preparation and Fluorescent ICC Staining of Non-adherent Cells
- Protocol for the Preparation and Fluorescent ICC Staining of Stem Cells on Coverslips
- Protocol for the Preparation of a Cell Smear for Non-adherent Cell ICC - Graphic
- Protocol: Annexin V and PI Staining by Flow Cytometry
- Protocol: Annexin V and PI Staining for Apoptosis by Flow Cytometry
- TUNEL and Active Caspase-3 Detection by IHC/ICC Protocol
- The Importance of IHC/ICC Controls
- Troubleshooting Guide: Fluorokine Flow Cytometry Kits
- View all Protocols, Troubleshooting, Illustrated assays and Webinars