2ye1
X-ray structure of the cyan fluorescent proteinmTurquoise-GL (K206A mutant)X-ray structure of the cyan fluorescent proteinmTurquoise-GL (K206A mutant)
Structural highlights
FunctionGFP_AEQVI Energy-transfer acceptor. Its role is to transduce the blue chemiluminescence of the protein aequorin into green fluorescent light by energy transfer. Fluoresces in vivo upon receiving energy from the Ca(2+)-activated photoprotein aequorin. Publication Abstract from PubMedOptimization of autofluorescent proteins by intensity-based screening of bacteria does not necessarily identify the brightest variant for eukaryotes. We report a strategy to screen excited state lifetimes, which identified cyan fluorescent proteins with long fluorescence lifetimes (>3.7 ns) and high quantum yields (>0.8). One variant, mTurquoise, was 1.5-fold brighter than mCerulean in mammalian cells and decayed mono-exponentially, making it an excellent fluorescence resonance energy transfer (FRET) donor. Bright cyan fluorescent protein variants identified by fluorescence lifetime screening.,Goedhart J, van Weeren L, Hink MA, Vischer NO, Jalink K, Gadella TW Jr Nat Methods. 2010 Feb;7(2):137-9. Epub 2010 Jan 17. PMID:020081836[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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