[Chromoproteins of the green fluorescent protein family: properties and applications].

The distribution in nature and the spectral and structural properties of chromoproteins of the green fluorescent protein (GFP) family and their differences from one another and other fluorescent proteins of this family are considered. Discussed in detail are practical applications of the chromoproteins and their mutant variants that have unique characteristics not found among natural proteins of the GFP family, such as far-red or photoconvertible fluorescence, a large Stokes shift, enhanced phototoxicity, etc.