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Invitrogen
CD21 Polyclonal Antibody
Advanced Verification
This Antibody was verified by Relative expression to ensure that the antibody binds to the antigen stated.
FIGURE: 1 / 1
CD21 Antibody (PA5-84131)
Relative expression in different tissues in IHC: Detection of differential expression levels of CD21 demonstrates antibody specificity. Immunohistochemical analysis of CD21 using anti-CD21 Polyclonal Antibody (Product #PA5-84131), shows significant staining of CD21 in tonsil and shows minimal or weak staining in cerebral cortex tissues. The relative expression levels of CD21 within each tissue is shown usi... View More
Product Details
PA5-84131
Product Specifications
Species Reactivity
Human
Host/Isotype
Rabbit
/ IgG
Class
Polyclonal
Type
Antibody
Immunogen
Recombinant protein corresponding to Human CR2. Recombinant protein control fragment (Product #RP-103141).
Conjugate
Form
Liquid
Concentration
0.2 mg/mL
Purification
Anitgen affinity chromatography
Storage buffer
PBS, pH 7.2, with 40% glycerol
Contains
0.02% sodium azide
Storage conditions
Store at 4°C short term. For long term storage, store at -20°C, avoiding freeze/thaw cycles.
Shipping conditions
Wet ice
RRID
AB_2791283
Product Specific Information
Immunogen sequence: RLPTCVSVFP LECPALPMIH NGHHTSENVG SIAPGLSVTY SCESGYLLVG EKIINCLSSG KWSAVPPTCE EARCKSLGRF PNGKVKEPPI LRVGVTANF
Target Information
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.
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Bioinformatics
Protein Aliases: CD21; Complement C3d receptor; Complement C3d receptor (C3DR); complement component (3d/Epstein Barr virus) receptor 2; Complement receptor type 2; Complement Receptor type 2 (CR2); Cr2; EBV receptor; EBV-R; Epstein-Barr virus receptor; EVBR
Gene Aliases: C3DR; CD21; CR; CR2; CVID7; SLEB9
UniProt ID: (Human) P20023
Entrez Gene ID: (Human) 1380
Performance Guarantee
If an Invitrogen™ antibody doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*
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