Article
Evolution of a fluorinated green fluorescent protein.
Proceedings of the National Academy of Sciences of the United States of America - 28 Aug 2007
Yoo Tae Hyeon, Link A James, Tirrell David A
Abstract excerpt
The fluorescence of bacterial cells expressing a variant (GFPm) of the green fluorescent protein (GFP) was reduced to background levels by global replacement of the leucine residues of GFPm by 5,5,5-trifluoroleucine. Eleven rounds of random mutagenesis and screening via fluorescence-activated cell sorting yielded a GFP mutant containing 20 amino acid substitutions. The mutant protein in fluorinated form showed...
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