3 * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
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23 <title>Sequence Features</title>
27 <strong>Sequence Features</strong>
30 Jalview can colour parts of a sequence based on the presence of
31 sequence features - which may be retrieved from database records
32 (such as Uniprot), the result of <a href="search.html">sequence
33 motif searches</a> or simply read from a <a href="featuresFormat.html">sequence
34 features file</a>. You can also <a href="creatinFeatures.html">create
35 features</a> from the results of searches or the current selection,
36 and <a href="editingFeatures.html">edit features</a> by double
40 <strong>Sequence Feature Colouring Styles</strong>
43 By default, Jalview will assign a color to each feature based on its
44 type. These colours can be changed from the <a
45 href="featuresettings.html"
46 >feature settings</a> and <a href="editingFeatures.html">amend
47 features</a> dialog boxes. Since Jalview 2.5, it is also possible to
48 define <a href="featureschemes.html">feature colourschemes</a> to
49 shade features based on their associated scores or text labels.
52 <strong>Sequence Feature Groups</strong>
55 Since Jalview 2.08, sequence features assigned to a sequence can be
56 organised into groups, which may indicate that the features were all
57 retrieved from the same database (such as Uniprot features), or
58 generated by the same analysis process (as might be specified in a <a
59 href="featuresFormat.html"
60 >sequence features file</a>).
63 <strong>Sequence Feature Inheritance</strong>
66 Since Jalview 2.08, sequence features are <em>global</em> to a set
67 of sequences appearing (independently or together) in many different
68 alignments. Practically, this means features loaded onto one
69 alignment can be viewed in any alignments involving the same
70 sequences. The same sequence appears in different alignments when a
71 new alignment is generated by submitting an existing set of
72 sequences to one of the alignment or prediction web services, and
73 when sequences are copied and pasted into other alignment windows.
76 <strong>View→Show Sequence Features</strong>
78 <p>Toggle the display of sequence features in this alignment. If
79 feature retrieval has not already been carried out, then Jalview
80 will automatically try to fetch sequence features (as described
83 <strong>View→Sequence Feature Settings...</strong>
86 Once sequence features have been loaded, their display can be fully
87 controlled using the alignment window's <a
88 href="featuresettings.html"
89 >Sequence Feature Settings</a> dialog box. Feature colour schemes and
90 display parameters are unique to a particular alignment, so it is
91 possible to colour the same sequence features differently in
92 different alignment views.<br> Since Jalview 2.1, it is
93 possible to add <a href="dassettings.html">DAS features</a> to an
94 alignment via the DAS tabbed pane of the feature settings window.
97 <strong>View→Sequence ID Tooltip→Show
98 Non-Positional features</strong><br> <em>Only available in
101 <p>Toggles the display of non-positional features in the sequence
102 ID tooltip, and whether they will be included when sequence features
103 are exported using "File→Export Features".</p>
105 Precalculated Sequence Features may be added to an alignment from
106 the command line, drag and drop, or from the "File→Load
107 Features / Annotations" menu item. See the <a
108 href="featuresFormat.html"
109 >Features File Format</a> for more details.