|Application ||WB, IHC|
|Calculated MW||112916 Da|
|Other Names||Complement receptor type 2, Cr2, Complement C3d receptor, Epstein-Barr virus receptor, EBV receptor, CD21, CR2, C3DR|
|Target/Specificity||A synthetic peptide corresponding to residues on the C terminus of human CD21 was used as an immunogen.|
|Format||50 mM Tris-Glycine (pH 7.4), 0.15 M NaCl, 40% Glycerol, 0.01% sodium azide and 0.05% BSA.|
|Storage||Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.|
|Precautions||CD21 Antibody is for research use only and not for use in diagnostic or therapeutic procedures.|
|Function||Receptor for complement C3Dd, for the Epstein-Barr virus on human B-cells and T-cells and for HNRPU. Participates in B lymphocytes activation.|
|Cellular Location||Membrane; Single-pass type I membrane protein|
|Tissue Location||Mature B-lymphocytes, T-lymphocytes, pharyngeal epithelial cells, astrocytes and follicular dendritic cells of the spleen|
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Provided below are standard protocols that you may find useful for product applications.
CD21 is a single-pass type 2 transmembrane protein that serves as the complement receptor for C3d and the Epstein-Barr virus. It is a member of a family of C3b/C4b binding proteins that regulate complement activation, comprise tandemly repeated 60-75 amino acid sequences, and whose genes map to band q32 on chromosome 1 (1). CD21 interacts with the p53 anti-oncoprotein, the p68 calcium binding protein and the nuclear p120 ribonucleoprotein to regulate their functions. Phosphorylation of CD21 inhibits its interaction with the nuclear p120 ribonucleoprotein (2).
1. Weis JJ, et al. J Exp Med. 167(3):1047-66, 1988
2. Barel M, et al. Mol Immunol. 32(6):389-97, 1995
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