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2008 | 55 | 2 | 261-267
Article title

Prediction of signal peptides in protein sequences by neural networks

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EN
Abstracts
EN
We present here a neural network-based method for detection of signal peptides (abbreviation used: SP) in proteins. The method is trained on sequences of known signal peptides extracted from the Swiss-Prot protein database and is able to work separately on prokaryotic and eukaryotic proteins. A query protein is dissected into overlapping short sequence fragments, and then each fragment is analyzed with respect to the probability of it being a signal peptide and containing a cleavage site. While the accuracy of the method is comparable to that of other existing prediction tools, it provides a significantly higher speed and portability. The accuracy of cleavage site prediction reaches 73% on heterogeneous source data that contains both prokaryotic and eukaryotic sequences while the accuracy of discrimination between signal peptides and non-signal peptides is above 93% for any source dataset. As a consequence, the method can be easily applied to genome-wide datasets. The software can be downloaded freely from http://rpsp.bioinfo.pl/RPSP.tar.gz.
Publisher

Year
Volume
55
Issue
2
Pages
261-267
Physical description
Dates
published
2008
received
2008-02-25
revised
2008-04-09
accepted
2008-05-12
(unknown)
2008-05-26
Contributors
  • Interdisciplinary Centre for Mathematical and Computational Modelling, Warsaw University, Warszawa, Poland
  • BioInfoBank Institute, Poznań, Poland
  • Interdisciplinary Centre for Mathematical and Computational Modelling, Warsaw University, Warszawa, Poland
  • BioInfoBank Institute, Poznań, Poland
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-abpv55p261kz
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