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Methods Mol Biol. 2004;263:219-38.

Multiparameter flow cytometry of fluorescent protein reporters.

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Flow Cytometry Facility and Hematopoiesis Department, Holland Laboratory, American Red Cross, Rockville, MD, USA.


Reporters based on the green fluorescent protein (GFP) from the jellyfish Aequorea victoria and GFP-like proteins from other marine organisms provide valuable tools to monitor gene transfer and expression noninvasively in living cells. Stable cell lines were generated from the Sp2/0-Ag14 hybridoma that express up to three spectral enhanced versions of GFP, the enhanced cyan fluorescent protein (ECFP), the enhanced green fluorescent protein (EGFP), and the enhanced yellow fluorescent protein (EYFP), and/or a variant of the Discosoma coral red fluorescent protein (DsRed). The panel of lines was used to demonstrate a flow cytometric procedure for simultaneous analysis of all four fluorescent proteins that utilizes dual-laser excitation at 488 nm and 407 nm. Additional schemes for simultaneous detection of two, three or four of these fluorescent proteins are also presented.

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