GFP expressed in E. coli and C. elegans. Mechanism for chromophore formation. First new color (blue) and oxygen dependence reported. Possibility of use in FRET experiments mentioned.

References:

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S Inouye, F Tsuji: Evidence for redox forms of the Aequorea green fluorescent protein. FEBS Letters 351 (1994) 211-14.

R Heim, DC Prasher, RY Tsien: Wavelength mutations and posttranslational autoxidation of green fluorescent protein. Proc. Natl. Acad. Sci. USA 91 (1994) 12501-04.