Chapter 1: Biophysics of the Green Fluorescent Protein

F. G. Prendergast

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It is almost certainly a truism that the interpretation of the fluorescence of a protein matrix-embedded chromophore in terms of the physicochemical character of its environment requires that the tertiary structure of the protein be known to high resolution. This reality derives from the complexity of the photophysics of most fluorescent molecules—complexity that reveals the imperfections of available theory. The accuracy of these dicta is highlighted by the biophysical properties of the green fluorescent protein (GFP) now being so elegantly elucidated from the application of X-ray crystallography, ultrafast optical spectroscopy, and site-specific mutagenesis. Given the apparent malleability of the GFP sequence and the sensitivity of the chromophore's photophysics to a broad spectrum of physicochemical factors, it is inevitable that additional useful and intriguing biophysical properties will emerge from the study of other mutants. Although on the surface, it may seem mundane, the determination of the amino acid sequence and tertiary structures of the GFPs from other coelenterates is quite likely to provide very useful insights into the biophysical bases of both protein folding and the green fluorescence per se.

Original languageEnglish (US)
Pages (from-to)1-18
Number of pages18
JournalMethods in Cell Biology
Issue numberC
StatePublished - Jan 1 1998

ASJC Scopus subject areas

  • Cell Biology


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