21 research outputs found

    Additional file 1 of Reconstructing cancer drug response networks using multitask learning

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    Supporting Information. S1 Text: Description of the inference algorithm for the multi-task objective function, learning parameters for the multi-task objective, method for ranking genes in the resulting networks, construction of the network figure, filtering of high-degree genes, and supplementary tables. (PDF 475 kb

    Tales of diversity: Genomic and morphological characteristics of forty-six <i>Arthrobacter</i> phages

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    <div><p>The vast bacteriophage population harbors an immense reservoir of genetic information. Almost 2000 phage genomes have been sequenced from phages infecting hosts in the phylum Actinobacteria, and analysis of these genomes reveals substantial diversity, pervasive mosaicism, and novel mechanisms for phage replication and lysogeny. Here, we describe the isolation and genomic characterization of 46 phages from environmental samples at various geographic locations in the U.S. infecting a single <i>Arthrobacter</i> sp. strain. These phages include representatives of all three virion morphologies, and Jasmine is the first sequenced podovirus of an actinobacterial host. The phages also span considerable sequence diversity, and can be grouped into 10 clusters according to their nucleotide diversity, and two singletons each with no close relatives. However, the clusters/singletons appear to be genomically well separated from each other, and relatively few genes are shared between clusters. Genome size varies from among the smallest of siphoviral phages (15,319 bp) to over 70 kbp, and G+C contents range from 45–68%, compared to 63.4% for the host genome. Although temperate phages are common among other actinobacterial hosts, these <i>Arthrobacter</i> phages are primarily lytic, and only the singleton Galaxy is likely temperate.</p></div

    Genome organization of <i>Arthrobacter</i> phage Amigo, Cluster AQ.

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    <p>See <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0180517#pone.0180517.g005" target="_blank">Fig 5</a> for details.</p

    Genome organization of <i>Arthrobacter</i> phage Jawnski, Cluster AO.

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    <p>See <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0180517#pone.0180517.g005" target="_blank">Fig 5</a> for details.</p

    Genome organization of <i>Arthrobacter</i> phage Maggie, Cluster AN.

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    <p>See <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0180517#pone.0180517.g005" target="_blank">Fig 5</a> for details.</p

    Genome organization of <i>Arthrobacter</i> phage Circum, Cluster AM.

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    <p>See <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0180517#pone.0180517.g005" target="_blank">Fig 5</a> for details.</p

    Pairwise alignment of clustered <i>Arthrobacter</i> phages.

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    <p>The genomes of 23 <i>Arthrobacter</i> phages are shown. Pairwise nucleotide sequence similarity is displayed by color-spectrum coloring between the genomes, with violet as most similar and red as least similar. Genes are shown as boxes above (transcribed rightwards) and below (transcribed leftwards) each genome line; boxes are colored according to the gene phamilies they are assigned [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0180517#pone.0180517.ref029" target="_blank">29</a>]. Maps were generated using Phamerator and its database Actinobacteriophage_692.</p

    Genome organization of <i>Arthrobacter</i> phage KellEzio, Cluster AT.

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    <p>See <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0180517#pone.0180517.g005" target="_blank">Fig 5</a> for details.</p

    Genome organization of <i>Arthrobacter</i> phage Laroye, Cluster AL.

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    <p>See <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0180517#pone.0180517.g005" target="_blank">Fig 5</a> for details.</p

    Genome organization of <i>Arthrobacter</i> phage Gordon, Cluster AU.

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    <p>See <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0180517#pone.0180517.g005" target="_blank">Fig 5</a> for details.</p
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