Abstract
The mixed disulfide of a Green-Fluorescent Protein with an Alexa 532 fluorescent label showed FRET, with quenching of the GFP emission. Reductive cleavage of this disulfide bond destroyed the FRET, giving a change in the ratios of fluorescence intensity at the wavelengths corresponding to the GFP and the Alexa dye. Cleavage by glutathione (second order rate constant at pH 7.4 was 1.18 ± 0.02 × 10 2 Min -1 min -1) was faster than for sodium cyanoborohydride. Copyright © 2005 The Chemical Society of Japan.
Original language | English |
---|---|
Pages (from-to) | 766-767 |
Number of pages | 1 |
Journal | Chemistry Letters |
Volume | 34 |
Issue number | 6 |
DOIs | |
Publication status | Published - 5 Jun 2005 |