Thermo Fisher Scientific CD21 Monoclonal Antibody (HB5), Super Bright 436, eBioscience

Applications

Tested Dilution

Publications

Flow Cytometry (Flow)

5µL (0.25 µg)/test

View 1 publication 1 publication

Product Specifications

Published species

Not Applicable

Host/Isotype

Mouse / IgG2a, kappa

Recommended Isotype Control

Mouse IgG2a kappa Isotype Control (eBM2a), Super Bright™ 436, eBioscience™

Class

Monoclonal

Type

Antibody

Clone

HB5

Conjugate

Super Bright™ 436 Super Bright™ 436 Super Bright™ 436

View additional formats

• APC
• FITC
• NovaFluor Blue 610-70S
• NovaFluor Blue 660-120S
• NovaFluor Red 710
• NovaFluor Red 725
• NovaFluor Red 755
• NovaFluor Yellow 610
• NovaFluor Yellow 660
• PE
• PE-Cyanine7
• PerCP-eFluor 710
• Super Bright 600
• Request custom conjugation

Excitation/Emission Max

413/431 nm View spectra

Form

Liquid

Concentration

5 µL/Test

Storage conditions

4° C, store in dark, DO NOT FREEZE!

Shipping conditions

Wet ice

RRID

AB_2716988

Product Specific Information

Description: The HB5 monoclonal antibody reacts with human CD21, an approximately 145 kDa type I transmembrane protein. CD21 is expressed by mature B cells, folliculate dendritic cells and a subset of epithelial cells and is a receptor for complement component C3d and Epstein-Barr virus (EBV). CD21, in association with CD19 and CD81, participates in the multimolecular complex with BCR and is involved in B cell activation.

Applications Reported: This HB5 antibody has been reported for use in flow cytometric analysis.

Applications Tested: This HB5 antibody has been pre-diluted and tested by flow cytometric analysis of normal human peripheral blood cells. This may be used at 5 µL (0.25 µg) per test. A test is defined as the amount (µg) of antibody that will stain a cell sample in a final volume of 100 µL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test.

Super Bright 436 can be excited with the violet laser line (405 nm) and emits at 436 nm. We recommend using a 450/50 bandpass filter, or equivalent. Please make sure that your instrument is capable of detecting this fluorochrome.

When using two or more Super Bright dye-conjugated antibodies in a staining panel, it is recommended to use Super Bright Complete Staining Buffer (Product # SB-4401) to minimize any non-specific polymer interactions. Please refer to the datasheet for Super Bright Staining Buffer for more information.

Excitation: 405 nm; Emission: 436 nm; Laser: Violet Laser

Super Bright Polymer Dyes are sold under license from Becton, Dickinson and Company.

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.