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23 <title>Structure Chooser</title>
28 <strong>Structure Chooser Dialog Box</strong>
32 The Structure Chooser allows you to select
33 3D structures to view for the currently selected set of
34 sequences. It is opened by selecting the <strong>"3D
35 Structure Data..."</strong> option from the Sequence ID panel's <a
36 href="../menus/popupMenu.html">pop-up menu</a>. The dialog
40 <li>Automatic discovery, retrieval and association of PDB
41 entries for sequences</li>
42 <li>Exploration of meta-data for available 3D structures</li>
43 <li>Automatic selection of the 'best structure' to display for
45 <li>Manual association of PDB entries by entering a PDB Id</li>
46 <li>Association of structure data from a local file (in mmCIF
50 <strong>Selecting and Viewing Structures</strong>
52 <p>The drop-down menu offers different options for structure
53 discovery; the 'Cached' view is shown automatically if existing
54 structure data has been imported for the selected sequences, and if
55 none is available, the import PDB/mmCIF file options are shown.</p>
57 Once one or more structures have been selected, pressing the <strong>View</strong>
58 or <strong>Add</strong> button will import them <a
59 href="viewingpdbs.html#afterviewbutton">a new or existing
60 structure view</a>. When multiple views are available, use the
61 drop-down menu to pick the target viewer for the structures.
64 <strong>Automated discovery of structure data</strong>
67 After selecting "3D Structure Data ..", Jalview queries the PDB via
68 the PDBe SOLR Rest API provided by EMBL-EBI to discover PDB IDs
69 associated with the sequence. It does this based on the sequence's
70 ID string, and any other associated database IDs. <br />
73 <strong><a name="cachedstructview">Viewing existing
74 structures for your sequences</a></strong>
77 If you have already loaded 3D structure data for the selected
78 sequences, the structure chooser will first open with the <strong>Cached
79 Structures View</strong>. This view shows associations between each
80 sequence, and chains for 3D structure files already in memory. If
81 you want to download additional structures, select one of the other
82 options from the drop down menu.
85 <strong>Selection of the best structure for each sequence</strong>
87 <p>Jalview can automatically select the best structures according
88 to meta-data provided by the PDB. For alignments with no existing
89 structure data, the 'Best Quality' structure for each sequence will
90 by default be selected, but clicking on the drop down menu allows
91 other criteria to be chosen, including Resolution (only defined for
92 X-Ray structures), Highest Protein Chain etc. When 'Invert' is
93 selected, structures are selected in reverse order for the current
94 criteria (e.g. worst quality rather than best).</p>
97 <img src="schooser_main.png" style="width: 499px; height: 437px;">
98 <!-- <p><img src="schooser_config.png" style="width: 463px; height: 369px; ">
99 <p><img src="schooser_drop-down.png" style="width: 464px; height: 368px; ">
100 <p><img src="schooser_enter-id.png" style="width: 467px; height: 373px; ">
101 <p><img src="schooser_from-file.png" style="width: 468px; height: 370px; ">
102 <p><img src="schooser_cached.png"> -->
103 <br>The screenshot above shows the Structure Chooser displayed after
104 selecting all the sequences in the Jalview example project. If no
105 structures were auto-discovered, options for manually associating
106 PDB records will be shown (see below).<p>
107 <strong>Exploration of meta-data for available structures</strong>
109 <p>Information on each structure available is displayed in columns
110 in the dialog box. By default, only the title, resolution and PDB
111 identifier are shown, but many more are provided by the PDBe. To
112 configure which ones are displayed, select the 'Configure Displayed
113 Columns' tab and tick the columns which you want to see.</p>
115 <img src="schooser_enter-id.png"
116 style="width: 464px; height: 173px;">
118 <strong>Manual selection/association of PDB files with
121 <p>To manually associate PDB files with a sequence, select 'From
122 File', or 'Enter PDB Id' from the drop-down menu:
124 <li><strong>From File</strong> - allows you to load a PDB file
125 from the local machine or network and associate it with the
126 selected sequence. PDB files associated in this way will also be
127 saved in the <a href="jalarchive.html">Jalview Archive file</a>.<br></li>
128 <li><strong>Enter PDB Id</strong> - allows you specify a PDB ID
129 for your sequence. The PDB Rest API, provided by EMBL-EBI, is used
130 to validate and fetch structure data.<br></li>
134 <em>The Structure Chooser interface was introduced in Jalview