CRNPRED: highly accurate prediction of one-dimensional protein structures by large-scale critical random networks

<p>Abstract</p> <p>Background</p> <p>One-dimensional protein structures such as secondary structures or contact numbers are useful for three-dimensional structure prediction and helpful for intuitive understanding of the sequence-structure relationship. Accurate predict...

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Main Authors: Kinjo Akira R, Nishikawa Ken
Format: Article
Language:English
Published: BMC 2006-09-01
Series:BMC Bioinformatics
Online Access:http://www.biomedcentral.com/1471-2105/7/401
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author Kinjo Akira R
Nishikawa Ken
author_facet Kinjo Akira R
Nishikawa Ken
author_sort Kinjo Akira R
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>One-dimensional protein structures such as secondary structures or contact numbers are useful for three-dimensional structure prediction and helpful for intuitive understanding of the sequence-structure relationship. Accurate prediction methods will serve as a basis for these and other purposes.</p> <p>Results</p> <p>We implemented a program CRNPRED which predicts secondary structures, contact numbers and residue-wise contact orders. This program is based on a novel machine learning scheme called critical random networks. Unlike most conventional one-dimensional structure prediction methods which are based on local windows of an amino acid sequence, CRNPRED takes into account the whole sequence. CRNPRED achieves, on average per chain, <it>Q</it><sub>3 </sub>= 81% for secondary structure prediction, and correlation coefficients of 0.75 and 0.61 for contact number and residue-wise contact order predictions, respectively.</p> <p>Conclusion</p> <p>CRNPRED will be a useful tool for computational as well as experimental biologists who need accurate one-dimensional protein structure predictions.</p>
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spelling doaj.art-b218dfc5195e4b68ba435109c240f0592022-12-21T23:21:57ZengBMCBMC Bioinformatics1471-21052006-09-017140110.1186/1471-2105-7-401CRNPRED: highly accurate prediction of one-dimensional protein structures by large-scale critical random networksKinjo Akira RNishikawa Ken<p>Abstract</p> <p>Background</p> <p>One-dimensional protein structures such as secondary structures or contact numbers are useful for three-dimensional structure prediction and helpful for intuitive understanding of the sequence-structure relationship. Accurate prediction methods will serve as a basis for these and other purposes.</p> <p>Results</p> <p>We implemented a program CRNPRED which predicts secondary structures, contact numbers and residue-wise contact orders. This program is based on a novel machine learning scheme called critical random networks. Unlike most conventional one-dimensional structure prediction methods which are based on local windows of an amino acid sequence, CRNPRED takes into account the whole sequence. CRNPRED achieves, on average per chain, <it>Q</it><sub>3 </sub>= 81% for secondary structure prediction, and correlation coefficients of 0.75 and 0.61 for contact number and residue-wise contact order predictions, respectively.</p> <p>Conclusion</p> <p>CRNPRED will be a useful tool for computational as well as experimental biologists who need accurate one-dimensional protein structure predictions.</p>http://www.biomedcentral.com/1471-2105/7/401
spellingShingle Kinjo Akira R
Nishikawa Ken
CRNPRED: highly accurate prediction of one-dimensional protein structures by large-scale critical random networks
BMC Bioinformatics
title CRNPRED: highly accurate prediction of one-dimensional protein structures by large-scale critical random networks
title_full CRNPRED: highly accurate prediction of one-dimensional protein structures by large-scale critical random networks
title_fullStr CRNPRED: highly accurate prediction of one-dimensional protein structures by large-scale critical random networks
title_full_unstemmed CRNPRED: highly accurate prediction of one-dimensional protein structures by large-scale critical random networks
title_short CRNPRED: highly accurate prediction of one-dimensional protein structures by large-scale critical random networks
title_sort crnpred highly accurate prediction of one dimensional protein structures by large scale critical random networks
url http://www.biomedcentral.com/1471-2105/7/401
work_keys_str_mv AT kinjoakirar crnpredhighlyaccuratepredictionofonedimensionalproteinstructuresbylargescalecriticalrandomnetworks
AT nishikawaken crnpredhighlyaccuratepredictionofonedimensionalproteinstructuresbylargescalecriticalrandomnetworks