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23 <title>Fetching ENSEMBL Data in Jalview</title>
27 <strong>Fetching ENSEMBL Data in Jalview</strong>
28 <br /> Jalview Version 2.10 (October 2016) introduced support to
29 retrieve annotated transcripts, peptides and genomic contigs from
30 <a href="http://www.ensembl.org">ENSEMBL</a>.
32 <img src="selectfetchdb.gif" align="right" width="480" height="204"
33 alt="Database selection dialog with Ensembl sequence source tooltip">
35 <p>Two types of ENSEMBL source are provided. ENSEMBL queries the
36 main ENSEMBL warehouse containing data for higher eukaryotes, and
37 EnsemblGenomes, which queries Ensembl Pathogens, and other
40 <strong>General Use</strong><br /> If you have a set of Ensembl
41 gene or transcript IDs, then you can retrieve them <em>via</em> the
42 sequence fetcher dialog opened after selecting the most appropriate
43 source (either 'ENSEMBL', or Ensembl Genomes). However, Jalview's
44 Ensembl client has a couple of additional capabilities:
47 <strong>Retrieving aligned transcripts for a genomic ID</strong>
49 <p>If a single genomic identifier is entered in the Ensembl
50 fetcher, Jalview will return all transcripts and products for the
51 locus, and display them in a split view - complete with sequence
52 variant annotation.</p>
54 <strong>Retrieving orthologs for a gene ID</strong>
57 If a gene ID is entered (e.g. fox1), Jalview will resolve Ensembl
58 genomic identifiers for a predefined set of taxa (Mouse, Rat, Human,
59 Yeast in Jalview 2.10).<br />
62 <strong><a name="ensemblannotation">Ensembl Sequence
63 Features</a></strong><br /> Jalview 2.10 includes support for the
64 visualisation and transfer genomic and transcriptomic sequence
65 features onto protein product sequences. Retrieval of a genomic
66 locus results in a set of transcripts that are annotated with
67 nucleotide variant information and exonic regions. By default,
68 intronic regions will be hidden.
71 <strong><a name="variantvis">Variant information on
72 Protein Products</a></strong><br />Jalview can translate genomic variant
73 annotation into protein sequence variant codes for variants
74 intersecting coding regions of a gene. To see this in action, use
75 the <strong>Calculate→Show cross-references</strong> menu to
76 view protein product sequences for the currently displayed (or
77 selected) sequences. The same menu allows you to recover Ensembl
78 exon, transcript and variant information when viewing UniProt
82 <strong>Viewing more information about variant annotation</strong><br />
83 Variants are highlighted as red sequence features on the protein
84 sequence, with each one reporting all protein sequence variants
85 observed at that position as a result of the genomic variants.
86 Right-clicking a variant allows you to open the Ensembl Variants web
87 page for each variant, via the <strong>Link</strong> submenu.
90 <strong>Work in Progress !</strong><br />In the next few releases,
91 we hope to improve and extend Jalview's support for working with
92 Ensembl. If you have any problems, questions or suggestions then
93 please get in contact with us via the Jalview discussion list.