Cat. No.
MABL-945
Application
therapeutic, Block
Isotype
Engineer antibody
Species Reactivity
Human
Clone No.
chi220
From
Recombinant Antibody
Specificity
This antibody binds the CD40 and blocks the humoral immune responses to T cell dependent antigens in a dose dependent manner.
Alternative Names
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.
UniProt
P29965
Immunogen
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.
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.
Antibody First Published
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.PMID:15611281
Note on publication
Describes the generation and characterization of this antibody.
Size
100 μg Purified antibody.
Concentration
1 mg/ml.
Purification
Protein A affinity purified
Buffer
PBS with 0.02% Proclin 300.
Storage Recommendation
Store at 4⁰C for up to 3 months. For longer storage, aliquot and store at - 20⁰C.
