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AAT Bioquest

APC-Cy5.5 Tandem

Allophycocyanin (APC) is a phycobiliprotein isolated from Spirulina sp., a blue-green alga. Like other phycobiliproteins, APC is fluorescent, with an extremely high absorptivity and high quantum efficiency. It is a protein which can be easily linked to antibodies and other proteins by conventional protein cross-linking techniques without altering its spectral characteristics. APC-Cy5.5 is a popular color used in flow cytometry. Its primary absorption peak is at 651 nm with emission peak at ~700 nm. AAT Bioquest also offers a unique ReadiUse™ Preactivated APC-Cy5.5 to facilitate the APC-Cy5.5 tandem conjugations to antibodies and other proteins, such as streptavidin and other secondary reagents. ReadiUse™ Preactivated APC-Cy5.5 tandem is ready to conjugate, giving much higher yield than the conventionally tedious SMCC-based conjugation chemistry. In addition, our ReadiUse™ Preactivated APC-Cy5.5 tandem is conjugated to a protein via its amino group that is abundant in proteins while SMCC chemistry targets the thiol group that has to be regenerated by the reduction of antibodies.

Spectrum

Product family

NameExcitation (nm)Emission (nm)Extinction coefficient (cm -1 M -1)
PE-Cy5.5 Tandem5656711960000
PerCP-Cy5.5 Tandem482695350000

References

View all 46 references: Citation Explorer
Chromophore attachment to phycobiliprotein beta-subunits: phycocyanobilin:cysteine-beta84 phycobiliprotein lyase activity of CpeS-like protein from Anabaena Sp. PCC7120
Authors: Zhao KH, Su P, Li J, Tu JM, Zhou M, Bubenzer C, Scheer H.
Journal: J Biol Chem (2006): 8573
Excitation energy transfer from phycobiliprotein to chlorophyll d in intact cells of Acaryochloris marina studied by time- and wavelength-resolved fluorescence spectroscopy
Authors: Petrasek Z, Schmitt FJ, Theiss C, Huyer J, Chen M, Larkum A, Eichler HJ, Kemnitz K, Eckert HJ.
Journal: Photochem Photobiol Sci (2005): 1016
Single-molecule spectroscopy selectively probes donor and acceptor chromophores in the phycobiliprotein allophycocyanin
Authors: Loos D, Cotlet M, De Schryver F, Habuchi S, Hofkens J.
Journal: Biophys J (2004): 2598
Isolation and characterisation of phycobiliprotein rich mutant of cyanobacterium Synechocystis sp
Authors: Prasanna R, Dhar DW, Dominic TK, Tiwari ON, Singh PK.
Journal: Acta Biol Hung (2003): 113
Evaluation of Tolypothrix germplasm for phycobiliprotein content
Authors: Prasanna R, Prasanna BM, Mohammadi SA, Singh PK.
Journal: Folia Microbiol (Praha) (2003): 59
Page updated on December 4, 2024

Ordering information

Price
Unit size
Catalog Number2622
Quantity
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Additional ordering information

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Physical properties

Molecular weight

~105000

Solvent

Water

Spectral properties

Extinction coefficient (cm -1 M -1)

700000

Excitation (nm)

651

Emission (nm)

700

Storage, safety and handling

H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22

Storage

Refrigerated (2-8 °C); Minimize light exposure
UNSPSC12171501
Human peripheral blood lymphocytes were stained with APC-Cy5.5 anti-Human CD4 (clone SK3, mouse IgG1, κ) conjugate prepared with APC-Cy5.5 Tandem (Cat# 2622).
Human peripheral blood lymphocytes were stained with APC-Cy5.5 anti-Human CD4 (clone SK3, mouse IgG1, κ) conjugate prepared with APC-Cy5.5 Tandem (Cat# 2622).
Human peripheral blood lymphocytes were stained with APC-Cy5.5 anti-Human CD4 (clone SK3, mouse IgG1, κ) conjugate prepared with APC-Cy5.5 Tandem (Cat# 2622).