AAT Bioquest

ReadiUse™ Preactivated PerCP Maleimide

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Physical properties
Molecular weightN/A
Spectral properties
Correction Factor (280 nm)0.22
Extinction coefficient (cm -1 M -1)406000
Excitation (nm)477
Emission (nm)678
Storage, safety and handling
H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22
StorageRefrigerated (2-8 °C); Minimize light exposure
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See also: PE and APC
Molecular weight
Correction Factor (280 nm)
Extinction coefficient (cm -1 M -1)
Excitation (nm)
Emission (nm)
PerCP (Peridinin-chlorophyll-protein complex) is isolated from Dinophyceae sp. It has an extremely high extinction coefficient, a high quantum efficiency and a large Stokes shift. It is well excited with the Argon laser at 488 nm with its maximum emission peak at 677 nm. PerCP protein is commonly used for fluorescent immunolabeling, particularly in applications involving fluorescent-activated cell sorting (FACS). AAT Bioquest offers this preactivated PerCP maleimide to facilitate the PerCP-Cy5.5 tandem conjugations to reduced antibodies and other biomolecules that contain a thiol group. Our preactivated PerCP maleimide is prepared from the commonly used crosslinker SMCC, and ready to conjugate. PerCP (Peridinin-chlorophyll-protein complex) is isolated from Dinophyceae sp. Its tandem conjugates (such as PerCP-Cy5.5 and PerCP-Cy7) can be excited with a standard 488 nm laser and emits in the far red at a longer wavelength for multicolor flow cytometric analysis of cells. These multiple emission wavelengths make PerCP- Cyanine conjugates potentially useful fluorochromes for multicolor analysis with FITC, PE and other fluorochromes.


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Spectral properties

Correction Factor (280 nm)0.22
Extinction coefficient (cm -1 M -1)406000
Excitation (nm)477
Emission (nm)678

Product Family

NameExcitation (nm)Emission (nm)Extinction coefficient (cm -1 M -1)Correction Factor (280 nm)
ReadiUse™ Preactivated APC Maleimide [Activated Allophycocyanin]6516607300000.195
ReadiUse™ Preactivated PE Maleimide [Activated R-Phycoerythrin]56557419600000.175


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