Ultramarine, a chromoprotein acceptor for Förster resonance energy transfer.

We have engineered a monomeric blue non-fluorescent chromoprotein called Ultramarine (fluorescence quantum yield, 0.001; ε(585 nm), 64,000 M(-1) x cm(-1)) for use as a Förster resonance energy transfer acceptor for a number of different donor fluorescent proteins. We show its use for monitoring acti...

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Autores principales: Anne Pettikiriarachchi, Lan Gong, Matthew A Perugini, Rodney J Devenish, Mark Prescott
Formato: article
Lenguaje:EN
Publicado: Public Library of Science (PLoS) 2012
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Acceso en línea:https://doaj.org/article/cf35399bb2114e3eb6ab6d430e2b6776
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Sumario:We have engineered a monomeric blue non-fluorescent chromoprotein called Ultramarine (fluorescence quantum yield, 0.001; ε(585 nm), 64,000 M(-1) x cm(-1)) for use as a Förster resonance energy transfer acceptor for a number of different donor fluorescent proteins. We show its use for monitoring activation of caspase 3 in live cells using fluorescence lifetime imaging. Ultramarine has the potential to increase the number of cellular parameters that can be imaged simultaneously.