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Invitrogen
Human CD21/CR2/EBV receptor ELISA Kit
Product Specifications
Analytical sensitivity
17 pg/mL
Assay range
17-4,000 pg/mL
Sample type/volume
Serum
50 µL
Plasma
50 µL
Supernatant
50 µL
Hands-on time
1 hr 20 min
Time-to-result
4 hr 45 min
Homogenous (no wash)
No
Interassay CV
<12%
Intraassay CV
<10%
Instrument
Absorbance Microplate Reader
Product size
96 Tests
Contents
Pre-coated 96 well plate
Standard
Assay Diluent concentrate
Biotinylated Detection Antibody
SAV-HRP
Wash Buffer
Chromogen
Stop Solution
Adhesive Plate Covers
Standard
Assay Diluent concentrate
Biotinylated Detection Antibody
SAV-HRP
Wash Buffer
Chromogen
Stop Solution
Adhesive Plate Covers
Shipping conditions
Wet ice
Storage
2-8°C
Protein name
CD21
Species (tested)
Human
Assay kit format
Sandwich ELISA Kit
Detector antibody conjugate
Biotin
Label or dye
HRP
About This Kit
Human CD21/CR2/EBV receptor quantitates human CD21/CR2/EBV receptor in serum, plasma, supernatant. The assay will exclusively recognize both natural and recombinant human CD21/CR2/EBV receptor.
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
Gene aliases : C3DR, CD21, CR, CR2, CVID7, SLEB9
Gene ID : (Human) 1380
Gene symbol : CR2
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, EVBR, EBV-R, Complement C3d receptor (C3DR), Complement Receptor type 2 (CR2)
UniProt ID (Human) P20023
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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