Origin of the nonexponential dynamics of excited-state proton transfer in wt-green fluorescent protein

R. Gepshtein, P. Leiderman, Dan Huppert

Research output: Contribution to journalArticlepeer-review

Abstract

We used an inhomogeneous excited-state proton-transfer kinetics model to explain the origin of the non-exponential time-resolved emission of the A-band of wt-green fluorescence protein. The calculated fit is rather good for both H2O and D2O samples in a wide temperature range of 80-229 K. We attribute the inhomogeneous kinetics to the distance dependence of the excited-state proton-transfer rate between the proton donor (the hydroxyl group of the chromophore) and the oxygen of a nearby water molecule.

Original languageEnglish
Pages (from-to)7203-7210
Number of pages8
JournalJournal of Physical Chemistry B
Volume112
Issue number24
DOIs
StatePublished - 19 Jun 2008

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