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Invitrogen
CD40 Polyclonal Antibody
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FIGURE: 1 / 4
CD40 Antibody (PA5-78980) in IHC (P)
Product Details
PA5-78980
Species Reactivity
Host/Isotype
Class
Type
Immunogen
Conjugate
Form
Concentration
Purification
Storage buffer
Contains
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Shipping conditions
RRID
Product Specific Information
Reconstitute with 0.2 mL of distilled water to yield a concentration of 500 µg/mL.
Positive Control - WB: mouse spleen tissue. IHC: mouse lymphaden tissue. Flow: U937 cell.
Target Information
CD40 is a single-chain glycoprotein and a member of the tumor necrosis factor receptor (TNFR) family, exhibiting significant homology to the Hodgkin's disease-associated antigen, CD30. It is expressed by B lymphocytes, follicular dendritic cells, thymic epithelium, and a subset of peripheral T cells, as well as some epithelial cells, carcinomas, and lymphoid dendritic cells. Notably, CD40 is present on all B cells except plasma cells. CD40 plays a crucial role in regulating B cell development and maturation, inducing immunoglobulin isotype-switching, and protecting B cells from surface Ig-induced apoptosis when combined with other signals such as IL-4. It promotes proliferation and is essential for T cell-dependent immunoglobulin class switching, memory B cell development, and germinal center formation. The interaction between CD40 and its ligand CD154 (gp39) on T cells is vital for T-B cell crosstalk, costimulation, and immune regulation. Adaptor protein TNFR2 interacts with CD40, mediating signal transduction, while the AT-hook transcription factor AKNA is reported to regulate CD40 expression, which may be important for homotypic cell interactions. Additionally, the interaction between CD40 and its ligand is necessary for amyloid-beta-induced microglial activation, suggesting a role in the early pathogenesis of Alzheimer's disease. Two alternatively spliced transcript variants encoding distinct isoforms of CD40 have been identified. Diseases associated with CD40 dysfunction include Type 3 Hyper-IgM immunodeficiency and CD40 ligand deficiency, highlighting its importance in immune and inflammatory responses.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
References (0)
Bioinformatics
Protein Aliases: B cell surface antigen CD40; B cell-associated molecule; B-cell surface antigen CD40; Bp50; CD antigen CD40; CD40; CD40 molecule, TNF receptor superfamily member 5; CD40L receptor; CDw40; Immunoglobulin M; ImmunoglobulinM; MGC9013; sCD40; soluble CD40; T-cell differentiation antigen; Tumor necrosis factor receptor superfamily member 5; tumor necrosis factor receptor superfamily, member 5
Gene Aliases: AI326936; Bp50; CD40; CDW40; GP39; HIGM1; IGM; IMD3; p50; T-BAM; TNFRSF5; TRAP
UniProt ID: (Human) P25942, (Mouse) P27512
Entrez Gene ID: (Human) 958, (Mouse) 21939
Performance Guarantee
If an Invitrogen™ antibody doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*
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