FITC anti-human CD55 Antibody

Pricing & Availability
JS11 (See other available formats)
Regulatory Status
VI N-L060
Other Names
DAF (Decay Accelerating Factor)
Mouse IgG1, κ
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Product Citations
Human peripheral blood lymphocytes stained with JS11 FITC
  • JS11_FITC_070207
    Human peripheral blood lymphocytes stained with JS11 FITC
See FITC spectral data
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311305 25 tests 85,00 CHF
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311306 100 tests 180,00 CHF
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CD55 is a 60-70 kD glycosylphosphatidylinositol (GPI)-anchored single chain glycoprotein also known as decay-accelerating factor (DAF). It is expressed on hematopoietic cells including erythrocytes and many non-hematopoietic cells. CD55 accelerates the dissociation of the components of the C3-convertases (namely C2a from C4b in the C4bC2a complex, a C3-convertase of the classical pathway, and factor Bb from the C3bBb complex, a C3-convertase of the alternative pathway) to protect cells from inappropriate damage caused by autologous complement. CD55 has been reported to reduce the efficiency of NK cell lysis and induce signal transduction in T cells. CD55 has also been shown to interact with CD97 and bind to Coxsackie and Echovirus.

Product Details
Technical Data Sheet (pdf)

Product Details

Human, African Green, Baboon, Cynomolgus
Antibody Type
Host Species
Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide and 0.2% (w/v) BSA (origin USA).
The antibody was purified by affinity chromatography, and conjugated with FITC under optimal conditions.
Lot-specific (please contact technical support for concentration and total µg amount, or use our Lookup tool if you have a lot number.)
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)
Application References

(PubMed link indicates BioLegend citation)
  1. Kishimoto T, et al. Eds. 1997. Leucocyte Typing VI. Garland Publishing Inc. London.
  2. Peyron P, et al. 2000. J. Immunol. 165:5186
Product Citations
  1. Nevo Y, et al. 2013. Blood. 121:129. PubMed
  2. Jeong Y, et al. 2013. PLoS One. 8:63241. PubMed
  3. Mndez-Mancilla A, et al. 2021. Cell Chemical Biology. :. PubMed
AB_314862 (BioLegend Cat. No. 311305)
AB_314863 (BioLegend Cat. No. 311306)

Antigen Details

GPI-achored regulator of complement activation (RCA), type I membrane glycoprotein, 60-70 kD

Hematopoietic cells including erythrocytes and many non-hematopoietic cells

Protects against inappropriate complement activation and cell damage, induces signal transduction, reduces the efficiency of NK cell lysis
C3b, C4b, CD97, Coxsackie viruses
Biology Area
Cell Biology, Immunology, Neuroinflammation, Neuroscience, Costimulatory Molecules
Molecular Family
CD Molecules
Antigen References

1. Schlossman S, et al. Eds. 1995. Leucocyte Typing V. Oxford University Press. New York.
2. Hamann J, et al. 1996. J. Exp. Med. 184:1185.
3. Fujita T, et al. 1987. J. Exp. Med. 166:1221

Gene ID
1604 View all products for this Gene ID
View information about CD55 on

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Go To Top Version: 1    Revision Date: 11.30.2012

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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Toll-Free Phone: 1-877-Bio-Legend (246-5343) Phone: (858) 768-5800 Fax: (877) 455-9587

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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