Recombinant Human CD40 protein (rFc Tag)

Species

Human

Purity

>90 %, SDS-PAGE

Tag

rFc Tag

Activity

not tested

Cat no : Eg1797



Product Information

Purity >90 %, SDS-PAGE
Endotoxin <0.1 EU/μg protein, LAL method
Activity
Not tested
Expression HEK293-derived Human CD40 protein Glu21-Arg193 (Accession# P25942-1) with a rabbit IgG Fc tag at the C-terminus.
GeneID 958
Accession P25942-1
PredictedSize 45.4 kDa
SDS-PAGE 48-60 kDa, reducing (R) conditions
Formulation Lyophilized from 0.22 μm filtered solution in PBS, pH 7.4. Normally 5% trehalose and 5% mannitol are added as protectants before lyophilization.
Reconstitution Briefly centrifuge the tube before opening. Reconstitute at 0.1-0.5 mg/mL in sterile water.
Storage Conditions
It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
  • Until expiry date, -20℃ to -80℃ as lyophilized proteins.
  • 3 months, -20℃ to -80℃ under sterile conditions after reconstitution.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the recommended temperature.

Background

CD40, also named as TNFRSF5 and Bp50, is a type I transmembrane protein that belongs to the tumor necrosis factor receptor (TNFR) family. CD40 is expressed on B cells, dendritic cells (DCs), monocytes, platelets, and macrophages as well as by non-hematopoietic cells such as myofibroblasts, fibroblasts, epithelial, and endothelial cells. It is a receptor for TNFSF5/CD40L. CD40L/CD40 interactions are essential for immunoglobulin (Ig) isotype switching, germinal center formation and the development of B cell memory.

References:

1. T M Foy, et al. (1994) J Exp Med. 180(1):157-63. 2. C van Kooten, et al. (2000) J Leukoc Biol. 67(1):2-17. 3. S Ferrari, et al. (2001) Proc Natl Acad Sci U S A. 98(22):12614-9. 4. Raul Elgueta, et al. (2009) Immunol Rev. 229(1):152-72.