PE 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) PE (top) or mouse IgG2b, κ PE isotype control (bottom).
  • S-HCL-1_PE_CD22_Antibody_FC_1_121214
    Human peripheral blood lymphocytes were stained with CD19 Alexa Fluor® 647 and CD22 (clone S-HCL-1) PE (top) or mouse IgG2b, κ PE isotype control (bottom).
  • S-HCL-1_PE_CD22_Antibody_FC_2_121214
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Cat # Size Price Quantity Check Availability Save
363503 25 tests $117
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363504 100 tests $287
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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 PE 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.

Excitation Laser
Blue Laser (488 nm)
Green Laser (532 nm)/Yellow-Green Laser (561 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. Ruella M, et al. 2018. Nat Med. 24:1499. PubMed
AB_2564609 (BioLegend Cat. No. 363503)
AB_2564610 (BioLegend Cat. No. 363504)

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 type of PE do you use in your conjugates?
We use R-PE in our conjugates.
Go To Top Version: 1    Revision Date: 12/16/2014

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*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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