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96 Crabtree et al.Fig. 2. Sybil protein cluster report page. Genes in the selected cluster are listed at thetop of the page (top right) along with the cluster’s average percent identity and percentcoverage scores (top left). The selected cluster appears in the middle of the graphical display,which shows sequences from three different genomes. Each of the three sequencesis oriented and positioned so that the three clustered genes appear to be in the same orientationand are centered horizontally. As a result this is strictly a local alignment of thesequences, based solely on the three genes in the selected cluster. The main cluster displayis clickable and when the mouse is placed over a gene or a gene cluster a descriptionof the relevant gene(s) appears in the text area below the display. The lower two genomesmatch very closely here, although note that the bottom sequence has a gene model(pya1.676.m00112) that has no orthologs in this particular region of the middle sequence.In fact, the name of this model is drawn in a lighter shade of gray, a cue used to indicatethat it does not have a predicted ortholog anywhere in either of the other two genomes.2.3. Example Data and Display Software (Optional)1. A complete example data set (including gene models, predicted polypeptides, allvs-allprotein-protein BLAST (Basic Local Alignment Search Tool) BLASTPresults, protein clusters, and protein cluster alignments) may be downloaded fromhttp://sybil.sourceforge.net. Also available for download is a set of Perl modulesthat implement the graphical protein cluster display algorithm described inSubheading 3.2.

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