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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 34, Number 7
BKCSDE 34(7)
July 20, 2013 

Concerted Asynchronous Proton Transfer in H-Bonding Relay Model: An Implication of Green Fluorescent Protein
Baotao Kang, S. Karthikeyan, Du-Jeon Jang, Heeyoung Kim, Jin Yong Lee*
Green fluorescent protein, Proton transfer, Concerted, Asynchronous, Theoretical
Theoretical investigations have been performed for the ground state (S0) and the first excited state (S1) of the hydrogen bonded green fluorescent protein (GFP) model. The potential energy surface (PESs) of S0 was obtained by B3LYP method and that of S1 was obtained by CIS method. Based on the relative stabilities of species and the energy barriers for the proton transfer, it was found that proton transfer could take place both under the ground state and the first excited state. As determined by the proton motions along the reaction coordinate, both the ground state proton transfer (GSPT) and the excited state proton transfer (ESPT) are considered as a concerted and asynchronous process.
1961 - 1966
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