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PerCP-Cy™5.5 Hamster Anti-Mouse CD69
Product Details
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BD Pharmingen™
VEA; Very Early Activation Antigen; AIM; Activation Induced Molecule
Mouse (QC Testing)
Armenian Hamster IgG1, λ3
Mouse Dendritic Epidermal T Cell Line Y245
Flow cytometry (Routinely Tested)
0.2 mg/ml
Aqueous buffered solution containing ≤0.09% sodium azide.

Preparation And Storage

The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography. The antibody was conjugated with PerCP-Cy5.5 under optimum conditions, and unconjugated antibody and free PerCP-Cy5.5 were removed. Storage of PerCP-Cy5.5 conjugates in unoptimized diluent is not recommended and may result in loss of signal intensity. Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.

Recommended Assay Procedures

PerCP has been reported to undergo significant photobleaching, the magnitude of which increases as laser power is increased or beam focus is narrowed. For tandem conjugates incorporating PerCP (e.g., PerCP-Cy5.5), the excitation and emission properties of PerCP and the kinetics of energy exchange between the fluorochromes of the tandem dye may limit their effectiveness on high-speed and/or sorting flow cytometers. Therefore, for third color flow-cytometric analysis using ≥ 25-mW laser power, we recommend PE-Cy7-conjugated reagents (Cat. No. 552879).

PerCP-Cy5.5 is optimized for use with a single argon ion laser emitting 488-nm light. Because of the broad absorption spectrum of the tandem fluorochrome, extra care must be taken when using dual-laser cytometers, which may directly excite both PerCP and Cy5.5™. We recommend the use of cross-beam compensation during data acquisition or software compensation during data analysis.

It is recommended that a 712/20-nm band-pass filter be used with stream-in-air instruments such as the BD FACStar™ and BD FACSVantage™ flow cytometry systems.

Product Notices

  1. Since applications vary, each investigator should titrate the reagent to obtain optimal results.
  2. Please refer to for technical protocols.
  3. For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at
  4. Although hamster immunoglobulin isotypes have not been well defined, BD Biosciences Pharmingen has grouped Armenian and Syrian hamster IgG monoclonal antibodies according to their reactivity with a panel of mouse anti-hamster IgG mAbs. A table of the hamster IgG groups, Reactivity of Mouse Anti-Hamster Ig mAbs, may be viewed at
  5. PerCP-Cy5.5–labelled antibodies can be used with FITC- and R-PE–labelled reagents in single-laser flow cytometers with no significant spectral overlap of PerCP-Cy5.5, FITC, and R-PE fluorescence.
  6. PerCP-Cy5.5 is optimized for use with a single argon ion laser emitting 488-nm light. Because of the broad absorption spectrum of the tandem fluorochrome, extra care must be taken when using dual-laser cytometers, which may directly excite both PerCP and Cy5.5™. We recommend the use of cross-beam compensation during data acquisition or software compensation during data analysis.
  7. Cy is a trademark of Amersham Biosciences Limited. This conjugated product is sold under license to the following patents: US Patent Nos. 5,486,616; 5,569,587; 5,569,766; 5,627,027.
  8. This product is subject to proprietary rights of Amersham Biosciences Corp. and Carnegie Mellon University and made and sold under license from Amersham Biosciences Corp. This product is licensed for sale only for research. It is not licensed for any other use. If you require a commercial license to use this product and do not have one return this material, unopened to BD Biosciences, 10975 Torreyana Rd, San Diego, CA 92121 and any money paid for the material will be refunded.
  9. Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
561931 Rev. 1
Antibody Details
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The H1.2F3 monoclonal antibody specifically binds to CD69 (Very Early Activation antigen), an 85 kDa disulfide-linked homodimer of differentially glycosylated subunits. CD69 is a C-type lectin, most closely related to the NKR-P1 and Ly-49 NK cell-activation molecules. Its expression is rapidly induced upon activation of lymphocytes (T, B, NK, and NK-T cells), neutrophils, and macrophages. CD69 is expressed also on thymocytes that are undergoing positive selection; its role in that process is unclear. H1.2F3 mAb augments PMA-induced T-cell stimulation and IFN-γ-induced macrophage stimulation. IL-2-activated NK cells express CD69, and H1.2F3 mAb induces redirected lysis of FcR-bearing target cells by NK cells.

561931 Rev. 1
Format Details
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PerCP-Cy5.5 dye is part of the BD blue family of dyes. This tandem fluorochrome is comprised of a fluorescent protein complex (PerCP) with an excitation maximum (Ex Max) of 482 nm and an acceptor dye with an emission maximum (Em Max) at 676 nm. PerCP-Cy5 is designed to be excited by the blue laser (488-nm) and detected using an optical filter centered near 680 nm (e.g., a 695/40 nm bandpass filter). The donor dye can be partially excited by the Violet (405-nm) laser resulting in cross-laser excitation and fluorescence spillover. Please ensure that your instrument’s configurations (lasers and optical filters) are appropriate for this dye.
Blue 488 nm
482 nm
676 nm
561931 Rev.1
Citations & References
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Development References (18)

  1. Bendelac A, Matzinger P, Seder RA, Paul WE, Schwartz RH. Activation events during thymic selection. J Exp Med. 1992; 175(3):731-742. (Biology). View Reference
  2. Brandle D, Muller S, Muller C, Hengartner H, Pircher H. Regulation of RAG-1 and CD69 expression in the thymus during positive and negative selection. Eur J Immunol. 1994; 24(1):145-151. (Biology). View Reference
  3. Gabor MJ, Godfrey DI, Scollay R. Recent thymic emigrants are distinct from most medullary thymocytes. Eur J Immunol. 1997; 27(8):2010-2050. (Biology). View Reference
  4. Greimers R, Trebak M, Moutschen M, Jacobs N, Boniver J. Improved four-color flow cytometry method using fluo-3 and triple immunofluorescence for analysis of intracellular calcium ion ([Ca2+]i) fluxes among mouse lymph node B- and T-lymphocyte subsets. Cytometry. 1996; 23(3):205-217. (Biology). View Reference
  5. Karlhofer FM, Yokoyama WM. Stimulation of murine natural killer (NK) cells by a monoclonal antibody specific for the NK1.1 antigen. IL-2-activated NK cells possess additional specific stimulation pathways. J Immunol. 1991; 146(10):3662-3673. (Biology). View Reference
  6. Keefe R, Dave V, Allman D, Wiest D, Kappes DJ. Regulation of lineage commitment distinct from positive selection. Science. 1999; 286(5442):1149-1153. (Biology). View Reference
  7. Lauzurica P, Sancho D, Torres M, et al. Phenotypic and functional characteristics of hematopoietic cell lineages in CD69-deficient mice. Blood. 2000; 95(7):2312-2320. (Biology). View Reference
  8. Marzio R, Jirillo E, Ransijn A, Mauel J, Corradin SB. Expression and function of the early activation antigen CD69 in murine macrophages. J Leukoc Biol. 1997; 62(3):349-355. (Clone-specific: Stimulation). View Reference
  9. Merkenschlager M, Graf D, Lovatt M, Bommhardt U, Zamoyska R, Fisher AG. How many thymocytes audition for selection. J Exp Med. 1997; 186(7):1149-1158. (Biology). View Reference
  10. Nishimura T, Kitamura H, Iwakabe K, et al. The interface between innate and acquired immunity: glycolipid antigen presentation by CD1d-expressing dendritic cells to NKT cells induces the differentiation of antigen-specific cytotoxic T lymphocytes. Int Immunol. 2000; 12(7):987-994. (Biology). View Reference
  11. Punt JA, Suzuki H, Granger LG, Sharrow SO, Singer A. Lineage commitment in the thymus: only the most differentiated (TCRhibcl-2hi) subset of CD4+CD8+ thymocytes has selectively terminated CD4 or CD8 synthesis. J Exp Med. 1996; 184(6):2091-2099. (Biology). View Reference
  12. Shapiro HM. Practical Flow Cytometry, 3rd Edition. New York: Wiley-Liss, Inc; 1995:280-281.
  13. Sobel ES, Yokoyama WM, Shevach EM, Eisenberg RA, Cohen PL. Aberrant expression of the very early activation antigen on MRL/Mp-lpr/lpr lymphocytes. J Immunol. 1993; 150(2):673-682. (Clone-specific: Stimulation). View Reference
  14. Wilkinson RW, Anderson G, Owen JJ, Jenkinson EJ. Positive selection of thymocytes involves sustained interactions with the thymic microenvironment. J Immunol. 1995; 155(11):5234-5240. (Biology). View Reference
  15. Yokoyama WM, Koning F, Kehn PJ, et al. Characterization of a cell surface-expressed disulfide-linked dimer involved in murine T cell activation. J Immunol. 1988; 141(2):369-376. (Immunogen: Stimulation). View Reference
  16. Yokoyama WM, Maxfield SR, Shevach EM. Very early (VEA) and very late (VLA) activation antigens have distinct functions in T lymphocyte activation. Immunol Rev. 1989; 109:153-176. (Biology). View Reference
  17. Ziegler SF, Levin SD, Johnson L, et al. The mouse CD69 gene. Structure, expression, and mapping to the NK gene complex. J Immunol. 1994; 152(3):1228-1236. (Biology). View Reference
  18. Ziegler SF, Ramsdell F, Alderson MR. The activation antigen CD69. Stem Cells. 1994; 12(5):456-465. (Biology). View Reference
View All (18) View Less
561931 Rev. 1

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Global - Refer to manufacturer's instructions for use and related User Manuals and Technical data sheets before using this products as described

Comparisons, where applicable, are made against older BD Technology, manual methods or are general performance claims.  Comparisons are not made against non-BD technologies, unless otherwise noted.

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