On photoabsorption of the neutral form of the green fluorescent protein chromophoreстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:We present results of theoretical studies of the photoabsorption band corresponding to the vertical electronic transition S(0)-S(1) between first two singlet states of the model chromophore from the green fluorescent protein (GFP) in its neutral form. Predictions of quantum chemical approaches including ab initio and semi-empirical approximations are compared for the model systems which mimic the GFP chromophore in different environments. We provide evidences that the protein matrix in GFP accounts for a fairly large shift of about 40 nm in the S(0)-S(1) absorption band as compared to the gas phase. (C) 2009 Elsevier B.V. All rights reserved.