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  • Computational Antisense Oligo Prediction with a Neural Network Model.

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    Author(s)
    Chalk, A.
    L.L. Sonnhammer, Erik
    Griffith University Author(s)
    Chalk, Alistair M.
    Year published
    2002
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    Abstract
    Motivation: The expression of a gene can be selectively inhibited by antisense oligonucleotides (AOs) targeting the mRNA. However, if the target site in the mRNA is picked randomly, typically 20% or less of the AOs are effective inhibitors in vivo. The sequence properties that make an AO effective are not well understood, thus many AOs need to be tested to find good inhibitors, which is time consuming and costly. So far computational models have been based exclusively on RNA structure prediction or motif searches while ignoring information from other aspects of AO design into the model. Results: We present a computational ...
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    Motivation: The expression of a gene can be selectively inhibited by antisense oligonucleotides (AOs) targeting the mRNA. However, if the target site in the mRNA is picked randomly, typically 20% or less of the AOs are effective inhibitors in vivo. The sequence properties that make an AO effective are not well understood, thus many AOs need to be tested to find good inhibitors, which is time consuming and costly. So far computational models have been based exclusively on RNA structure prediction or motif searches while ignoring information from other aspects of AO design into the model. Results: We present a computational model for AO prediction based on a neural network approach using a broad range of input parameters. Collecting sequence and efficacy data from AO scanning experiments in the literature generated a database of 490 AO molecules. Using a set of derived parameters based on AO sequence properties we trained a neural network model. The best model, an ensemble of 10 networks, gave an overall correlation coefficient of 0.30 (p=10-8). This model can predict effective AOs (>50% inhibition of gene expression) with a success rate of 92%. Using these thresholds the model predicts on average 12 effective AOs per 1000 base pairs, making it a stringent yet practical method for AO prediction. Availability: A prediction server is available at http://www.cgb.ki.se/AOpredict
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    Journal Title
    Bioinformatics
    Volume
    18
    Issue
    12
    Publisher URI
    http://bioinformatics.oxfordjournals.org/
    DOI
    https://doi.org/10.1093/bioinformatics/18.12.1567
    Copyright Statement
    This is a pre-copy-editing, author-produced PDF of an article accepted for publication in Bioinformatics following peer review. The definitive publisher-authenticated version Bioinformatics 2002 8(12):1567-75 is available online at: http://dx.doi.org/10.1093/bioinformatics/18.12.1567
    Subject
    Mathematical Sciences
    Biological Sciences
    Information and Computing Sciences
    Publication URI
    http://hdl.handle.net/10072/20944
    Collection
    • Journal articles

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