APC 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 FITC and CD22 (clone S-HCL-1) APC (top) or mouse IgG2b, κ APC isotype control (bottom).
  • S-HCL-1_APC_CD22_Antibody_FC_1_121214
    Human peripheral blood lymphocytes were stained with CD19 FITC and CD22 (clone S-HCL-1) APC (top) or mouse IgG2b, κ APC isotype control (bottom).
  • S-HCL-1_APC_CD22_Antibody_FC_2_121214
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363505 25 tests $125
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363506 100 tests $303
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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 APC under optimal conditions.
Lot-specific (to obtain lot-specific concentration and expiration, please enter the lot number in our Certificate of Analysis online tool.)
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.

Excitation Laser
Red Laser (633 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
Product Citations
  1. Alhaj Hussen K, et al. 2017. Immunity. 47:680. PubMed
  2. Ljungars A, et al. 2019. Front Pharmacol. 10:847. PubMed
AB_2564611 (BioLegend Cat. No. 363505)
AB_2564612 (BioLegend Cat. No. 363506)

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 UniProt.org
Go To Top Version: 1    Revision Date: 12/16/2014

For Research Use Only. Not for diagnostic or therapeutic use.


This product is supplied subject to the terms and conditions, including the limited license, located at www.biolegend.com/terms) ("Terms") and may be used only as provided in the Terms. Without limiting the foregoing, BioLegend products may not be used for any Commercial Purpose as defined in the Terms, resold in any form, used in manufacturing, or reverse engineered, sequenced, or otherwise studied or used to learn its design or composition without express written approval of BioLegend. Regardless of the information given in this document, user is solely responsible for determining any license requirements necessary for user’s intended use and assumes all risk and liability arising from use of the product. BioLegend is not responsible for patent infringement or any other risks or liabilities whatsoever resulting from the use of its products.


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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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