3 * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
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23 <title>The Chimera PDB Viewer</title>
27 <strong>The Chimera Viewer</strong>
30 Since Jalview 2.8.2, <a href="http://www.cgl.ucsf.edu/chimera/">Chimera</a>
31 (http://www.cgl.ucsf.edu/chimera/) has been integrated into Jalview
32 for interactively viewing structures opened by entries in the <strong>"Structure"</strong>
33 submenu in the <a href="../menus/popupMenu.html">sequence id
34 pop-up menu</a> (if you can't see this, then you need to <a
35 href="viewingpdbs.html"
36 >associate a PDB structure</a> with the sequence). Chimera is
37 available from the Jalview desktop, provided Chimera has been
41 You can set a default choice of Jmol or Chimera structure viewer in
42 <a href="preferences.html#structure"> Preferences</a>. You can also
43 optionally specify the path to the Chimera program here (if it
44 differs from the standard paths searched by Jalview).
46 If you save your Jalview session as a project file, the state of any
47 open Chimera windows will also be saved, and can be reopened by
48 loading the project file on any machine with Chimera installed. <em>Since
50 <!-- <p>The following menu entries are provided for viewing structure data<br>
52 <li>The <strong>"Structure→View
53 Structure→</strong> submenu allows a single PDB structure to be chosen
54 for display from the available structures for a sequence.
56 <li>The <strong>"Structure→View all <em>N</em>
58 </strong> option will open a new window containing all structures associated
59 with the current selection.
61 <li>The <strong>"Structure→View all <em>N</em>
62 representative structures
63 </strong> option will open a new window containing exactly one structure per
64 currently selected sequence.<br /></li>
69 <a name="align"><strong>Superposing structures based on
70 their aligned sequences</strong></a><br> If several structures are
71 available on the alignment, you may add additional structures to an
72 existing Chimera view by selecting their entry in the appropriate
73 pop-up menu. Jalview will ask you if you wish to add the structure
74 to the existing alignment, and if you do, it will import and
75 superimpose the new PDB file using the corresponding positions from
76 the alignment. If the alignment is subsequently edited, you can use
77 the <a href="#sAlign"><em>Chimera→Align</em></a> menu option
78 from the menu bar of the structure view window to superpose the
79 structures using the updated alignment.<br>
82 <strong>Chimera Controls</strong><br> The structure is by
83 default rendered as a ribbon diagram. Moving the mouse over the
84 structure brings up tooltips giving the residue name, PDB residue
85 number and chain code ([RES]Num:Chain). Moving the mouse over an
86 associated residue in an alignment window highlights the associated
87 atoms in the displayed structures. When residues are selected in the
88 Chimera window, they are highlighted on the alignment. For
89 comprehensive details of Chimera's commands, refer to the tool's
92 Basic screen operations (see <a
93 href="http://www.cgl.ucsf.edu/chimera/current/docs/UsersGuide/mouse.html"
95 http://www.cgl.ucsf.edu/chimera/current/docs/UsersGuide/mouse.html
99 <td><strong>Action</strong></td>
100 <td><strong>Windows</strong></td>
101 <td><strong>Unix</strong></td>
102 <td><strong>Mac/OSX</strong></td>
106 <td>Left Click and Drag</td>
107 <td>Left Click and Drag</td>
108 <td>Left Click and Drag</td>
112 <td>Right Click<br> drag mouse up or down
114 <td>Right Click<br>drag mouse up or down
116 <td>cmd or Right + Click and drag mouse up or down, <br>or
117 use mouse scroll button
122 <td>Middle Button + Drag</td>
123 <td>Middle Button and drag</td>
124 <td>alt + Click<br> and drag
128 <td>Select Residues</td>
129 <td>Ctrl + Click (and drag to select a region)</td>
130 <td>Ctrl + Click (and drag)</td>
131 <td>Ctrl + Click (and drag)</td>
136 <strong>Jalview Controls</strong>
137 <p>The Jalview Chimera View window has up to five menus:</p>
142 <li><strong>View Mapping<br>
143 </strong><em> Opens a text window showing the alignment between the
144 residues corresponding to alpha-carbon atoms in the PDB
145 structure and the residues in the associated sequence.</em></li>
147 <li><strong>View</strong>
149 <li><strong>Show Chains<br>
150 </strong><em>Select which of the PDB file's chains (if more than
151 one) are to be displayed.</em></li>
152 <li><strong>Colour by ..<br></strong><em>Submenu
153 allowing specific alignment views to be selected for
154 colouring associated chains in the structure display. This
155 menu contains all the alignment views associated with the
156 structure view, with those used to colour the view indicated
157 by ticks. Addditionally, it contains the following menu
160 <li><strong>Select many views<br></strong><em>When
161 this option is enabled, selecting an alignment view adds
162 it to the set used to colour the structures. Use this
163 when colouring structures related to a number of
164 alignments involving different domains or chains which
165 are shown in the same structure view.</em></li>
166 <li><strong>Select all views<br></strong><em>This
167 is only enabled when </em><strong>Select many views</strong><em>
168 is also enabled, and will add all associated views to
169 the set used to colour the structure display.</em></li>
170 <li><strong>Invert selection<br></strong><em>This
171 is only enabled when </em><strong>Select many views</strong><em>
172 is also enabled, and will replace the current set of
173 views with any remaining views not currently used to
174 colour the structure display.</em></li>
177 <li><strong>Colours<br>
180 <li><strong>By Sequence<br>
181 </strong><em> Colours each residue in the structure with the colour
182 of its corresponding residue in the associated sequence as
183 rendered in the associated alignment views, including any
184 Uniprot sequence features or region colourings.<br />Pick
185 which of the associated alignment views are used to colour
186 the structures using the <strong>View→Colour
187 by ..</strong> sub menu.
188 </em><br> Residues which only exist in the PDB structure are
189 coloured white if they are insertions (relative to the
190 associated sequence in the alignment) and grey if they are N
191 or C terminal flanks outside the region mapped to the
192 alignment window's sequence.</em></li>
193 <li><strong>By Chain<br>
194 </strong><em>Uses the Chimera 'rainbow chain' command to apply a
195 different colour to each chain.</em></li>
196 <li><strong>Charge & Cysteine<br>
197 </strong><em> Highlights cysteines in yellow, anionic (Aspartic Acid
198 or Glutamic Acid) residues in red, and cationic (Lysine or
199 Arginine) residues in blue.</em></li>
200 <li><strong>Colour with Chimera<br></strong><em>Defers
201 any colouring operations to Chimera. Select this if you want
202 to use the Chimera scripting interface or menu to modify the
203 view directly.</em></li>
204 <li><strong>Standard and User Defined Jalview
206 </strong><em>The remaining entries apply the colourschemes available
207 from the standard and user defined <a
208 href="../colourSchemes/index.html"
209 >amino acid colours</a>.
212 <li><strong>Chimera<br>
213 </strong><em>This pulldown menu is only displayed if there are multiple
214 structures shown in the Chimera window, and Jalview can also
215 locate at least two of the structures in the currently
216 associated alignment view.</em>
218 <li><strong><a name="sAlign">Align</a> <br> </strong><em>
219 When selected, the associated alignment will be used to
220 superimpose all the structures in the view onto the first
221 structure in the alignment. The regions used to calculate
222 the superposition will be highlighted using the 'Cartoon'
223 rendering style, and the remaining data shown as a chain
230 <li><strong>Chimera Help<br>
231 </strong><em>Access the Chimera Help documentation in a new browser
236 <strong>Chimera and Windows Firewall</strong>
238 Jalview and Chimera communicate using Chimera's
240 href="http://www.cgl.ucsf.edu/chimera/current/docs/ContributedSoftware/restserver/restserver.html"
242 (http://www.cgl.ucsf.edu/chimera/current/docs/ContributedSoftware/restserver/restserver.html).
243 <br> Technically this requires both Chimera and Jalview to open
244 ports on the local network, and this may be blocked by Windows
245 Firewall with a warning message such as
246 <br /> "Windows Firewall has blocked some features of this program"
247 (where the program may be jp2launcher.exe for Jalview Webstart, or
248 java.exe or javaw.exe for the InstallAnywhere version).
249 <br /> To allow Jalview and Chimera to interact, you may need to add
250 permission for the program to communicate over the network. This can
251 be done from the warning dialogue, or in Control Panel, Firewall