Predicting protein residue-residue contacts using deep networks and boosting

Bioinformatics. 2012 Dec 1;28(23):3066-72. doi: 10.1093/bioinformatics/bts598. Epub 2012 Oct 9.

Abstract

Motivation: Protein residue-residue contacts continue to play a larger and larger role in protein tertiary structure modeling and evaluation. Yet, while the importance of contact information increases, the performance of sequence-based contact predictors has improved slowly. New approaches and methods are needed to spur further development and progress in the field.

Results: Here we present DNCON, a new sequence-based residue-residue contact predictor using deep networks and boosting techniques. Making use of graphical processing units and CUDA parallel computing technology, we are able to train large boosted ensembles of residue-residue contact predictors achieving state-of-the-art performance.

Availability: The web server of the prediction method (DNCON) is available at http://iris.rnet.missouri.edu/dncon/.

Contact: chengji@missouri.edu

Supplementary information: Supplementary data are available at Bioinformatics online.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Artificial Intelligence
  • Computational Biology / methods*
  • Internet
  • Models, Statistical
  • Protein Structure, Tertiary*
  • Proteins / chemistry*

Substances

  • Proteins