Publication: Prediction of GFP spectral properties using artificial neural network
Issued Date
2007-05-01
Resource Type
ISSN
1096987X
01928651
01928651
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2-s2.0-34247525611
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Mahidol University
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SCOPUS
Bibliographic Citation
Journal of Computational Chemistry. Vol.28, No.7 (2007), 1275-1289
Suggested Citation
Chanin Nantasenamat, Chartchalerm Isarankura-Na-Ayudhya, Natta Tansila, Thanakorn Naenna, Virapong Prachayasittikul Prediction of GFP spectral properties using artificial neural network. Journal of Computational Chemistry. Vol.28, No.7 (2007), 1275-1289. doi:10.1002/jcc.20656 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/24355
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Title
Prediction of GFP spectral properties using artificial neural network
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Abstract
The prediction of the excitation and the emission maxima of green fluorescent protein (GFP) chromophores were investigated by a quantitative structure-property relationship study. A data set of 19 GFP color variants and an additional data set consisting of 29 synthetic GFP chromophores were collected from the literature. Artificial neural network implementing the back-propagation algorithm was employed. The proposed computational approach reliably predicted the excitation and the emission maxima of GFP chromophores with correlation coefficient exceeding 0.9. The usefulness of quantum chemical descriptors was revealed by a comparative study with other molecular descriptors. Assignment of appropriate protonation state of the chromophore for the GFP color variants data set was shown to be necessary for good predictive performance. Results suggest that the confinement of the GFP chromophore has no significant influence on the predictive performance of the data set used. A comparative investigation with the traditional modeling methods, particularly multiple linear regression and partial least squares, reveals that artificial neural network is the most suitable modeling approach for the GFP spectral properties. It is anticipated that this methodology has great potential in accelerating the design and engineering of novel GFP color variants of scientific or industrial interest. © 2007 Wiley Periodicals, Inc.