3 * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
4 * Copyright (C) $$Year-Rel$$ The Jalview Authors
6 * This file is part of Jalview.
8 * Jalview is free software: you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation, either version 3
11 * of the License, or (at your option) any later version.
13 * Jalview is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty
15 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
16 * PURPOSE. See the GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
20 * The Jalview Authors are detailed in the 'AUTHORS' file.
23 <title>PDB Viewing</title>
27 <strong>Viewing PDB Structures</strong>
29 Jalview can be used to view protein structures by following the steps
32 <li>Select the <strong>"3D Structure Data..."</strong> option
33 from a sequence's <a href="../menus/popupMenu.html">pop-up
34 menu</a> to open the <a href="structurechooser.html">Structure
35 Chooser</a> dialog box.
37 <li>If one or more structures exists for the given
38 sequence, the <a href="structurechooser.html">Structure
39 Chooser</a> dialog will open with them listed in the results
42 <li>However, if no structure was found, the <a
43 href="structurechooser.html"
44 >Structure Chooser</a> interface will present options for manual
45 association of PDB structures.
49 <li><strong>Selecting Structures</strong><br /> If structures
50 have been discovered, then some will already be selected according
51 to predefined selection criteria, such as structures with the
52 highest resolution. Use the drop down menu to select structures
53 according to different criteria, or, alternatively, choose
54 structures manually by selecting with the keyboard and mouse.
56 <li><strong>Viewing Cached Structures</strong><br />If you
57 have previously downloaded structures for your sequences, they
58 can be viewed by selecting the <strong>Cached PDB
59 Entries</strong> option from the drop down menu at the top of the
62 <li>To view selected structures, click the <strong>"View"</strong>
68 <a href="jmol.html">Jmol viewer</a> has been included since Jalview
69 2.3. Jalview 2.8.2 included support for
70 <a href="chimera.html">Chimera</a>, provided it is installed and can
71 be launched by Jalview. The default viewer can be configured in the
72 <a href="preferences.html#structure">Structure tab</a> in the
73 <strong>Tools→Preferences</strong> dialog box.
75 Structure data imported into Jalview can also be processed to
76 display secondary structure and temperature factor annotation. See
77 the <a href="xsspannotation.html">Annotation from Structure</a> page
82 If a <strong>single</strong> PDB structure is selected, one of the
83 following will happen:
87 <li>If no structures are open, then an interactive display of
88 the structure will be opened in a new window.</li>
90 <li>If another structure is already shown for the current
91 alignment, then you will be asked if you want to add and <a
92 href="jmol.html#align"
93 >align this structure</a> to the structure in the existing view. (<em>new
94 feature in Jalview 2.6</em>).
97 <li>If the structure is already shown, then you will be
98 prompted to associate the sequence with an existing view of the
99 selected structure. This is useful when working with multi-domain
100 or multi-chain PDB files.</li>
102 <li style="list-style: none">See the <a href="jmol.html">Jmol
103 </a> and <a href="chimera.html">Chimera</a> PDB viewer help pages for
104 more information about the display.
110 <strong>Importing PDB Entries or files in PDB format</strong><br>
111 You can retrieve sequences from the PDB using the <a
112 href="pdbsequencefetcher.html"
113 >Sequence Fetcher</a>. Any sequences retrieved with this service are
114 automatically associated with their source database entry. For PDB
115 sequences, simply select PDB as the database and enter your known
116 PDB id (appended with ':' and a chain code, if desired).<br>
117 Jalview will also read PDB files directly. Simply load in the file
118 as you would an alignment file. The sequences of any protein or
119 nucleotide chains will be extracted from the file and viewed in the
124 <strong>Associating a large number of PDB files to
125 sequences in an alignment</strong><br /> It is often the case when working
126 with structure alignments that you will have a directory of PDB
127 files, and an alignment involving one or more of the structures. If
128 you drag a number of PDB files onto an alignment in the Jalview
129 desktop, Jalview will give you the option of associating PDB files
130 with sequences that have the same filename. This means, for example,
131 you can automatically associate PDB files with names like '1gaq.pdb'
132 with sequences that have an ID like '1gaq'. <br />
133 <em>Note: This feature was added in Jalview 2.7</em>
136 <em>Note for Jalview applet users:<br> Due to the applet
137 security constraints, PDB Files can currently only be imported by
138 cut and paste of the PDB file text into the text box opened by the
139 'From File' entry of the structure menu.
144 <strong>Viewing the PDB Residue Numbering</strong><br>
145 Sequences which have PDB entry or PDB file associations are
146 annotated with sequence features from a group named with the
147 associated PDB accession number or file name. Each feature gives the
148 corresponding PDB Residue Number for each mapped residue in the
149 sequence. The display of these features is controlled through the <strong>"View→Sequence
150 Features"</strong> menu item and the <a href="featuresettings.html">Feature
151 Settings dialog box</a>.
155 <em><strong>Outstanding problem with cut'n'pasted
156 files in Jalview 2.6 and Jalview 2.7</strong><br> Structures
157 imported via the cut'n'paste dialog box will not be correctly
158 highlighted or coloured when they are displayed in structure
159 views, especially if they contain more than one PDB structure. See
160 the bug report at http://issues.jalview.org/browse/JAL-623 for
161 news on this problem.</em>