Title
OCTOPUS: improving topology prediction by two-track ANN-based preference scores and an extended topological grammar.
Abstract
Motivation: As -helical transmembrane proteins constitute roughly 25 of a typical genome and are vital parts of many essential biological processes, structural knowledge of these proteins is necessary for increasing our understanding of such processes. Because structural knowledge of transmembrane proteins is difficult to attain experimentally, improved methods for prediction of structural features of these proteins are important. Results: OCTOPUS, a new method for predicting transmembrane protein topology is presented and benchmarked using a dataset of 124 sequences with known structures. Using a novel combination of hidden Markov models and artificial neural networks, OCTOPUS predicts the correct topology for 94 of the sequences. In particular, OCTOPUS is the first topology predictor to fully integrate modeling of reentrant/membrane-dipping regions and transmembrane hairpins in the topological grammar.
Year
DOI
Venue
2008
10.1093/bioinformatics/btn221
BIOINFORMATICS
Keywords
Field
DocType
protein methods
Topology,Chemical models,Protein methods,Computer science,Grammar,Transmembrane protein,Artificial intelligence,Bioinformatics,Artificial neural network,Hidden Markov model,Machine learning,Web server
Journal
Volume
Issue
ISSN
24
15
1367-4803
Citations 
PageRank 
References 
28
1.42
6
Authors
2
Name
Order
Citations
PageRank
Håkan Viklund1734.88
Arne Elofsson263356.98