Brilliant Violet 421™ anti-human CD22 Antibody

Pricing & Availability
S-HCL-1 (See other available formats)
Regulatory Status
Other Names
BL-CAM, Siglec-2, Lyb8
Mouse IgG2b, κ
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Product Citations
Human peripheral blood lymphocytes were stained with CD19 Alexa Fluor® 647 and CD22 (clone S-HCL-1) Brilliant Violet 421™ (top) or mouse IgG2b, κ Brilliant Violet 421™ isotype control (bottom).
  • S-HCL-1_BV421_CD22_Antibody_FC_1_112514
    Human peripheral blood lymphocytes were stained with CD19 Alexa Fluor® 647 and CD22 (clone S-HCL-1) Brilliant Violet 421™ (top) or mouse IgG2b, κ Brilliant Violet 421™ isotype control (bottom).
  • S-HCL-1_BV421_CD22_Antibody_FC_2_112514
Compare all formats See Brilliant Violet 421™ spectral data
Cat # Size Price Quantity Check Availability Save
363511 25 tests $187
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363512 100 tests $396
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CD22 is a 130 kD type I transmembrane glycoprotein also known as Siglec-2 and BL-CAM and is a member of the immunoglobulin superfamily (sialoadhesion subgroup). CD22 is expressed in the cytoplasm of pro-B and pre-B cells, and on the surface of mature B and activated B cells, but not on plasma cells. CD22 is present in the B cell receptor complex and associates with SHP-1, Syk, Lck, Lyn, and phospholipase Cγ1. A primary function of CD22 is thought to be in limiting antigen receptor signaling by modulating B cell activation threshold. CD22 has been shown to bind to CD45RO and CD75, although the natural ligands for this molecule remain controversial.

Product Details
Technical data sheet

Product Details

Verified Reactivity
Antibody Type
Host Species
Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide and BSA (origin USA).
The antibody was purified by affinity chromatography and conjugated with Brilliant Violet 421™ under optimal conditions.
Lot-specific (to obtain lot-specific concentration, please enter the lot number in our Concentration and Expiration Lookup or Certificate of Analysis online tools.)
Storage & Handling
The antibody solution should be stored undiluted between 2°C and 8°C, and protected from prolonged exposure to light. Do not freeze.

FC - Quality tested

Recommended Usage

Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is 5 µl per million cells in 100 µl staining volume or 5 µl per 100 µl of whole blood.

Brilliant Violet 421™ excites at 405 nm and emits at 421 nm. The standard bandpass filter 450/50 nm is recommended for detection. Brilliant Violet 421™ is a trademark of Sirigen Group Ltd.

Learn more about Brilliant Violet™.

This product is subject to proprietary rights of Sirigen Inc. and is made and sold under license from Sirigen Inc. The purchase of this product conveys to the buyer a non-transferable right to use the purchased product for research purposes only. This product may not be resold or incorporated in any manner into another product for resale. Any use for therapeutics or diagnostics is strictly prohibited. This product is covered by U.S. Patent(s), pending patent applications and foreign equivalents.
Excitation Laser
Violet Laser (405 nm)
Application Notes
  1. Nitschke L. 2005. Curr. Opin. Immunol. 17:290
  2. Foon Ka, et al. 1986. Blood. 68:297
  3. Schwarting R, et al. 1985. Blood. 65:974
  4. Campana D, et al. 1985. J. Immunol. 134:1524
AB_2564616 (BioLegend Cat. No. 363511)
AB_2564617 (BioLegend Cat. No. 363512)

Antigen Details

Ig superfamily, a type I glycosylated integral transmembrane protein, 120-130 kD

B cells

Adhesion, B-monocyte and B-T interactions
CD45RO, CD75
Cell Type
B cells
Biology Area
Molecular Family
CD Molecules, Siglec Molecules
Antigen References
  1. Clark E. 1993. J. Immunol. 150:4715.
  2. Shan D, et al. 1995. J. Immunol. 154:4466.
Gene ID
933 View all products for this Gene ID
View information about CD22 on

Related FAQs

What is the F/P ratio range of our BV421™ format antibody reagents?

It is lot-specific. On average it ranges between 2-4.

Go To Top Version: 1    Revision Date: 12/01/2014

For research use only. Not for diagnostic use. Not for resale. BioLegend will not be held responsible for patent infringement or other violations that may occur with the use of our products.


*These products may be covered by one or more Limited Use Label Licenses (see the BioLegend Catalog or our website, BioLegend products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products, reverse engineer functionally similar materials, or to provide a service to third parties without written approval of BioLegend. By use of these products you accept the terms and conditions of all applicable Limited Use Label Licenses. Unless otherwise indicated, these products are for research use only and are not intended for human or animal diagnostic, therapeutic or commercial use.


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This data display is provided for general comparisons between formats.
Your actual data may vary due to variations in samples, target cells, instruments and their settings, staining conditions, and other factors.
If you need assistance with selecting the best format contact our expert technical support team.

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