Rabbit anti-Human CD40 Monoclonal Antibody | anti-CD40 antibody

Anti-CD40 [chi220]

Cat. Num. AAA488792

• Gene Names: CD40LG; IGM; IMD3; TRAP; gp39; CD154; CD40L; HIGM1; T-BAM; TNFSF5; hCD40L
• Reactivity: Human
• Applications: Blocking (BL), Therapeutics
• Purity: Purified antibody. Protein A affinity purified
• Synonyms: CD40; Monoclonal Antibody; Anti-CD40 [chi220]; TNFSF5; CDw40; TRAP; p50; Bp50; CD40L receptor; Tumor necrosis factor ligand superfamily member 5; B-cell surface antigen CD40; T-cell antigen Gp39; TNF-related activation protein; anti-CD40 antibody

• Host: Rabbit
• Reactivity: Human
• Clonality: Monoclonal
• Isotype: Rabbit IgG, kappa
• Clone Number: chi220
• Specificity: This antibody binds the CD40 and blocks the humoral immune responses to T cell dependent antigens in a dose dependent manner.
• Purity/Purification: Purified antibody. Protein A affinity purified
• Form/Format: PBS with 0.02% Proclin 300.
• Concentration: 1mg/ml (varies by lot)

• Applicable Applications for anti-CD40 antibody: Blocking (BL), Therapeutics
• Application Notes: This antibody blocks the interaction between CD40 and gp39. Chi220 was used either alone or in combination with CTLA4-Ig in an immunosuppresive therapy study to check the survival of renal allografts in non human primate models (PMID: 12394833). Chi220 blocks binding of CD154, it also has partial agonist properties and weak stimulatory potential. It synergisticaly works with LEA29Y (belatacept) to prolong the islet allograft survival in a non-human primate Macaca fascicularis (PMID: 15611281). A study on protection of islets xenographs in diabetic macaques used a combination of Chi220 with IL-2 receptor specific antibody Basiliximab for immunosuppression with induction therapy. Chi220 is used as an sCD154 blocking agent and it was seen that it binds sCD154 in a dose dependant manner (PMID: 21920020). Two humanized versions of this antibody were generated F4 and L3.17, also showed similar properties. Humanized versions of this antibody are available on request.
• Chimeric Use Statement: This chimeric rabbit antibody was made using the variable domain sequences of the original Mouse IgG2a format, for improved compatibility with existing reagents, assays and techniques.
• PMID: 15611281
• Preparation and Storage: Store at 4 degree C for up to 3 months. For longer storage, aliquot and store at -20 degree C.

Immunofluorescence (IF)

(Immunofluorescence staining of fixed Daudi cells with anti-CD40 antibody chi220 (MBS488792) Immunofluorescence analysis of paraformaldehyde fixed Daudi cells on Shi-fix coverslips stained with the chimeric rabbit IgG version of chi220 () at 10ug/ml for 1h followed by Alexa Fluor 488 secondary antibody (2ug/ml), showing membrane staining. The nuclear stain is DAPI (blue). Panels show from left-right, top-bottom , DAPI, merged channels and an isotype control. The isotype control was an unknown specificity antibody (MBS488149) followed by staining with Alexa Fluor 488 secondary antibody.)

Flow Cytometry (FC/FACS)

(Flow cytometry using the anti-CD40 antibody chi220 (MBS488792). Daudi cells were fixed using 2% PFA and stained with anti-unknown specificity antibody (MBS488149; isotype control, black line) or the rabbit IgG1 version of chi220 (, blue line) at a dilution of 1:100 for 1h at RT. After washing, the bound antibody was detected using a goat anti-rabbit IgG AlexaFluor 488 antibody at a dilution of 1:1000 and cells analyzed using a FACSCanto flow-cytometer.)

Related Product Information for anti-CD40 antibody

Recombinant monoclonal antibody to CD40. Recombinant Platform with variable regions (i.e. specificity) from the hybridoma chi220.
This antibody was generated by immunizing female BALB/c mice with a fusion protein containing extracellular domain of human CD40 fused to the hinge CH2 and CH3 domains of a murine IgG2b antibody.

References

Adams et al. Development of a chimeric anti-CD40 monoclonal antibody that synergizes with LEA29Y to prolong islet allograft survival. J Immunol. (2005); 174(1):542-50.
Note on publication: Describes the generation and characterization of this antibody.

NCBI and Uniprot Product Information

• NCBI GI #: 4557433
• NCBI GeneID: 959
• NCBI Accession #: NP_000065.1
• NCBI GenBank Nucleotide #: NM_000074.2
• UniProt Accession #: P29965
• Molecular Weight: 29,274 Da
• NCBI Official Full Name: CD40 ligand
• NCBI Official Synonym Full Names: CD40 ligand
• NCBI Official Symbol: CD40LG
• NCBI Official Synonym Symbols: IGM; IMD3; TRAP; gp39; CD154; CD40L; HIGM1; T-BAM; TNFSF5; hCD40L
• NCBI Protein Information: CD40 ligand; CD40-L; CD40 antigen ligand; T-cell antigen Gp39; T-B cell-activating molecule; TNF-related activation protein; tumor necrosis factor (ligand) superfamily member 5
• UniProt Protein Name: CD40 ligand
• Protein Family: CD40 ligand
• UniProt Gene Name: CD40LG
• UniProt Synonym Gene Names: CD40L; TNFSF5; TRAP; CD40-L; TRAP
• UniProt Entry Name: CD40L_HUMAN

NCBI Description

The protein encoded by this gene 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. [provided by RefSeq, Jul 2008]

Uniprot Description

CD40LG: Mediates B-cell proliferation in the absence of co- stimulus as well as IgE production in the presence of IL-4. Involved in immunoglobulin class switching. Defects in CD40LG are the cause of X-linked immunodeficiency with hyper-IgM type 1 (HIGM1); also known as X-linked hyper IgM syndrome (XHIM). HIGM1 is an immunoglobulin isotype switch defect characterized by elevated concentrations of serum IgM and decreased amounts of all other isotypes. Affected males present at an early age (usually within the first year of life) recurrent bacterial and opportunistic infections, including Pneumocystis carinii pneumonia and intractable diarrhea due to cryptosporidium infection. Despite substitution treatment with intravenous immunoglobulin, the overall prognosis is rather poor, with a death rate of about 10% before adolescence. Belongs to the tumor necrosis factor family.

Protein type: Membrane protein, integral; Cell adhesion

Chromosomal Location of Human Ortholog: Xq26

Cellular Component: extracellular space; integral to plasma membrane; integral to membrane; plasma membrane; external side of plasma membrane

Molecular Function: CD40 receptor binding; cytokine activity; tumor necrosis factor receptor binding

Biological Process: B cell proliferation; platelet activation; leukocyte adhesion; regulation of immune response; positive regulation of interleukin-12 production; immunoglobulin secretion; B cell differentiation; isotype switching; inflammatory response; regulation of immunoglobulin secretion; negative regulation of apoptosis

Disease: Immunodeficiency With Hyper-igm, Type 1