Human CD40 Receptor/Soluble (CD40) ELISA Kit | CD40 elisa kit
Human CD40 Receptor/Soluble (CD40) ELISA Kit
* Allow all reagents to warm to room temperature for at least 30 minutes before opening.
* Pre-rinse the pipet tip with reagent, use fresh pipet tips for each sample, standard and reagent to avoid contamination.
* Unused wells must be kept desiccated at 4 degree C in the sealed bag provided.
* Mix Thoroughly is very important for the result. It is recommended using low frequency oscillator or slight hand shaking every 10 minutes.
* It is recommended that all samples and standards be assayed in duplicate or triplicate.
Background: CD40 is a protein that is primarily expressed on activated T cells and is a member of the TNF superfamily of molecules. It binds to CD40 on antigen-presenting cells (APC), which leads to many effects depending on the target cell type. In general, CD40L plays the role of a costimulatory molecule and induces activation in APC in association with T cell receptor stimulation by MHC molecules on the APC. In total CD40L has three binding partners: CD40, alpha5beta1 integrin and alphaIIbbeta3. CD40L is expressed on the surface of T cells. It regulates B cell function by engaging CD40 on the B cell surface. A defect in this gene results in an inability to undergo immunoglobulin class switch and is associated with hyper IgM syndrome.
NCBI and Uniprot Product Information
NCBI Description
This gene is a member of the TNF-receptor superfamily. The encoded protein is a receptor on antigen-presenting cells of the immune system and is essential for mediating a broad variety of immune and inflammatory responses including T cell-dependent immunoglobulin class switching, memory B cell development, and germinal center formation. AT-hook transcription factor AKNA is reported to coordinately regulate the expression of this receptor and its ligand, which may be important for homotypic cell interactions. Adaptor protein TNFR2 interacts with this receptor and serves as a mediator of the signal transduction. The interaction of this receptor and its ligand is found to be necessary for amyloid-beta-induced microglial activation, and thus is thought to be an early event in Alzheimer disease pathogenesis. Mutations affecting this gene are the cause of autosomal recessive hyper-IgM immunodeficiency type 3 (HIGM3). Multiple alternatively spliced transcript variants of this gene encoding distinct isoforms have been reported. [provided by RefSeq, Nov 2014]
Uniprot Description
CD40: a member of the TNF-receptor superfamily. This receptor for CD40L mediates a broad variety of immune and inflammatory responses including T cell-dependent immunoglobulin class switching, memory B cell development, and germinal center formation. Defects in CD40 are the cause of hyper-IgM immunodeficiency type 3 (HIGM3). HIGM3 is an autosomal recessive disorder which includes an inability of B cells to undergo isotype switching, one of the final differentiation steps in the humoral immune system, an inability to mount an antibody-specific immune response, and a lack of germinal center formation. Two alternatively spliced isoforms have been reported. Isoform I is a type I membrane protein; isoform II is secreted.
Protein type: Receptor, cytokine; Membrane protein, integral
Chromosomal Location of Human Ortholog: 20q12-q13.2
Cellular Component: extracellular space; cell surface; intracellular membrane-bound organelle; integral to plasma membrane; cytoplasm; plasma membrane; external side of plasma membrane
Molecular Function: protein binding; signal transducer activity; enzyme binding; ubiquitin protein ligase binding; receptor activity; antigen binding
Biological Process: B cell proliferation; positive regulation of isotype switching to IgG isotypes; platelet activation; regulation of immune response; positive regulation of I-kappaB kinase/NF-kappaB cascade; positive regulation of interleukin-12 production; immune response-regulating cell surface receptor signaling pathway; activation of NF-kappaB transcription factor; cellular calcium ion homeostasis; positive regulation of MAP kinase activity; positive regulation of tyrosine phosphorylation of Stat1 protein; protein kinase B signaling cascade; positive regulation of B cell proliferation; protein complex assembly; positive regulation of transcription from RNA polymerase II promoter; positive regulation of protein amino acid phosphorylation; inflammatory response; regulation of immunoglobulin secretion; defense response to virus
Disease: Immunodeficiency With Hyper-igm, Type 3
Research Articles on CD40
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Product Notes
The Human CD40 cd40 (Catalog #AAA9715946) is an ELISA Kit and is intended for research purposes only. The product is available for immediate purchase. The AAA9715946 ELISA Kit recognizes Human CD40. It is sometimes possible for the material contained within the vial of "CD40 Receptor/Soluble (CD40), ELISA Kit" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
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