Name: ReadiUse™ Preactivated APC-Cy7 Tandem
Brand: AAT Bioquest
SKU: 2587
Price: 415 USD
Availability: InStock

ReadiUse™ Preactivated APC-Cy7 Tandem

ReadiUse™ Preactivated APC-Cy7 Tandem is a ready-to-conjugate fluorescent tandem dye for labeling antibodies and other proteins for multicolor flow cytometry.

Fluorescence Detection: Excitation at 651 nm and emission at 779 nm.
Conjugation Chemistry: Buccutite™ FOL/MTA chemistry enables protein conjugation through amino-group modification.
High Conjugation Yield: Higher yields than conventional SMCC-based chemistry.
Ready-to-Use: Includes preactivated dye and Buccutite™ MTA reagent.
Protein Compatibility: Suitable for antibodies, streptavidin, and other proteins.

Flow cytometry analysis of whole blood stained with APC-Cy7 anti-human CD4 *SK3* conjugate. The fluorescence signal was monitored using an Aurora spectral flow cytometer in the APC-Cy7 specific R7-A channel.

Protocol

SDS

Catalog	Size	Price	Quantity
2587	1 mg	Price

Overview

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 a 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-Cy7 is a popular color used in flow cytometry. Its primary absorption peak is at 651 nm with emission peak at~780 nm. AAT Bioquest offers this preactivated APC-Cy7 to facilitate the APC-Cy7 tandem conjugations to antibodies and other proteins such as streptavidin and other secondary reagents. Our preactivated APC-Cy7 tandem is ready to conjugate, giving much higher yield than the conventionally tedious SMCC-based conjugation chemistry. In addition, our preactivated APC-Cy7 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.

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

Spectral properties

Extinction coefficient (cm ^-1 M ^-1)	700000
Excitation (nm)	651
Emission (nm)	779

Usage and storage

Intended use

Research Use Only (RUO)

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Page updated on October 28, 2026

A: ReadiUse™ Preactivated APC-Cy7 Tandem	1 vial (1 mg)
B: Buccutite™ MTA	1 vial (100 μg)
C: Spin Desalting Column	Not Included