Inhibition of twisting of a green fluorescent protein-like chromophore by metal complexation
Chemical Communications2010Vol. 46(31), pp. 5686–5686
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Anthony Baldridge, Kyril M. Solntsev, Charles C. S. Song, Tatsuro Tanioka, Janusz Kowalik, Kenneth I. Hardcastle, Laren M. Tolbert
Abstract
Substitution of a pyridyl for the hydroxyphenyl moiety in the Green Fluorescent Protein analog p-hydroxybenzylidene-dimethylimidiazolinone produces a chromophore which "turns on" fluorescence in the presence of Zn(2+) or Cd(2+) ions. Such a phenomenon provides "proof of principle" for using GFP chromophores in a variety of sensing applications.
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