MA5-11417 targets CD21 in WB, FACS and IHC (P) applications and shows reactivity with Human samples. This antibody is not suitable for Raji cell lysates or mouse BAF-3 cell lysates in Western blot analysis.
The MA5-11417 immunogen is recombinant protein encoding the external domain of human CD21.
CD21 (complement receptor 2, CR2, C3D receptor, EBV receptor) binds C3 complement fragments, especially its breakdown fragments, which remain covalently attached to complement activating surfaces or antigen. CD21 has important roles in uptake and retention of immunocomplexes, survival of memory B cells and in development and maintenance of the humoral response to T-dependent antigens. CD21 also serves as a key receptor for Epstein-Barr virus binding and is involved in targeting prions to follicular dendritic cells and expediting neuroinvasion following peripheral exposure to prions. A soluble form of the CD21 (sCD21) is shed from the lymphocyte surface and retains its ability to bind respective ligands. CD21 functions as receptor for C3d, C3dg and iC3b complement components, for EBV and for IFNalpha. CD21 binds to CD23 and associates with CD19, CD81 and Leu13 to form a large signal-transduction complex involved in B cell activation. Genetic variations in the CD21 gene are associated with susceptibility to systemic lupus erythematosus type 9 (SLEB9). Alternatively, spliced transcript variants encoding different isoforms of CD21 have been found.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: CD21; Complement C3d receptor; complement component (3d/Epstein Barr virus) receptor 2; Complement receptor type 2; Cr2; EBV receptor; Epstein-Barr virus receptor
Gene Aliases: C3DR; CD21; CR; CR2; CVID7; SLEB9
UniProt ID: (Human) P20023
Entrez Gene ID: (Human) 1380