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Updated: Oct 2, 2026

A Protocol for Computer-Based Protein Structure and Function Prediction
Published on: November 3, 2011
A neural network based predictor of residue contacts in proteins
1Biocomputing Group (Centro Interdipartimentale per le Ricerche Biotecnologiche), Bologna, Italy.
Abstract:
We describe a method based on neural networks for predicting contact maps of proteins using as input chemicophysical and evolutionary information. Neural networks are trained on a data set comprising the contact maps of 200 non-homologous proteins of well resolved three-dimensional structures. The systems learn the association rules between the covalent structure of each protein and its correspondent contact map by means of a standard back propagation algorithm. Validation of the predictor on the training set and on 408 proteins of known structure which are not homologous to those contained in the training set indicate that this method scores higher than statistical approaches previously described and based on correlated mutations and sequence information.
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