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231223s2009 xx |||||o 00| ||eng c |
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|a 10.1002/jcc.21096
|2 doi
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|a pubmed24n0607.xml
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|a (NLM)18752216
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|a DE-627
|b ger
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|e rakwb
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|a eng
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|a Jiang, Yingfu
|e verfasserin
|4 aut
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|a Prediction of protein folding rates from primary sequences using hybrid sequence representation
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|c 2009
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 24.04.2009
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|a Date Revised 02.03.2009
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|a published: Print
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|a Citation Status MEDLINE
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|a 2008 Wiley Periodicals, Inc.
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|a The ability to predict protein folding rates constitutes an important step in understanding the overall folding mechanisms. Although many of the prediction methods are structure based, successful predictions can also be obtained from the sequence. We developed a novel method called prediction of protein folding rates (PPFR), for the prediction of protein folding rates from protein sequences. PPFR implements a linear regression model for each of the mainstream folding dynamics including two-, multi-, and mixed-state proteins. The proposed method provides predictions characterized by strong correlations with the experimental folding rates, which equal 0.87 for the two- and multistate proteins and 0.82 for the mixed-state proteins, when evaluated with out-of-sample jackknife test. Based on in-sample and out-of-sample tests, the PPFR's predictions are shown to be better than most of other sequence only and structure-based predictors and complementary to the predictions of the most recent sequence-based QRSM method. We show that simultaneous incorporation of several characteristics, including the sequence, physiochemical properties of residues, and predicted secondary structure provides improved quality. This hybridized prediction model was analyzed to reveal the complementary factors that can be used in tandem to predict folding rates. We show that bigger proteins require more time for folding, higher helical and coil content and the presence of Phe, Asn, and Gln may accelerate the folding process, the inclusion of Ile, Val, Thr, and Ser may slow down the folding process, and for the two-state proteins increased beta-strand content may decelerate the folding process. Finally, PPFR provides strong correlation when predicting sequences with low similarity
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|a Comparative Study
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Proteins
|2 NLM
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|a Iglinski, Paul
|e verfasserin
|4 aut
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|a Kurgan, Lukasz
|e verfasserin
|4 aut
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|i Enthalten in
|t Journal of computational chemistry
|d 1984
|g 30(2009), 5 vom: 15. Apr., Seite 772-83
|w (DE-627)NLM098138448
|x 1096-987X
|7 nnns
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|g volume:30
|g year:2009
|g number:5
|g day:15
|g month:04
|g pages:772-83
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|u http://dx.doi.org/10.1002/jcc.21096
|3 Volltext
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