Journal
PROTEINS-STRUCTURE FUNCTION AND BIOINFORMATICS
Volume 59, Issue 3, Pages 476-481Publisher
WILEY
DOI: 10.1002/prot.20435
Keywords
structure prediction; sequence representation; neural networks; cascade-correlation; CASP
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We present DESTRUCT, a new method of protein secondary structure prediction, which achieves a three-state accuracy (Q(3)) of 79.4% in a cross-validated trial on a nonredundant set of 513 proteins. An iterative set of cascade-correlation neural networks is used to predict both secondary structure and psi dihedral angles, with predicted values enhancing the subsequent iteration. Predictive accuracies of 80.7% and 81.7% are achieved on the CASP4 and CASP5 targets, respectively. Our approach is significantly more accurate than other contemporary methods, due to feedback and a novel combination of structural representations. (c) 2005 Wiley-Liss, Inc.
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