1028077-75-9Relevant academic research and scientific papers
Synthesis and properties of the p -Sulfonamide analogue of the green fluorescent protein (GFP) Chromophore: The mimic of GFP chromophore with very strong N-H photoacid strength
Chen, Yi-Hui,Sung, Robert,Sung, Kuangsen
, p. 1768 - 1772 (2018)
The para-sulfonamide analogue (p-TsABDI) of a green fluorescent protein (GFP) chromophore was synthesized to mimic the GFP chromophore. Its S1 excited-state pKa? value in dimethylsulfoxide (DMSO) is -1.5, which is strong enough to partially protonate dipolar aprotic solvents and causes excited-state proton transfer (ESPT), so it can partially mimic the GFP chromophore to further study the ESPT-related photophysics and the blinking phenomenon of GFP. In comparison with 8-hydroxypyrene-1,3,6-trisulfonate (HPTS) (pKa = 7.4, pKa? = 1.3 in water), p-TsABDI (pKa = 6.7, pKa? = -1.5 in DMSO) is a better photoacid for pH-jump studies.
Photoisomerization of the green fluorescence protein chromophore and the meta- and para-amino analogues
Yang, Jye-Shane,Huang, Guan-Jhih,Liu, Yi-Hung,Peng, Shie-Ming
, p. 1344 - 1346 (2008/12/21)
The Z → E photoisomerization and fluorescence quantum yields for the wild-type green fluorescence protein (GFP) chromophore (p-HBDI) and its meta- and para-amino analogues (m-ABDI and p-ABDI) in aprotic solvents (hexane, THF, and acetonitrile) and protic
