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	<id>https://wiki.pymol.org/index.php?action=history&amp;feed=atom&amp;title=Cycle_Valence</id>
	<title>Cycle Valence - Revision history</title>
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	<updated>2026-04-29T14:39:41Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://wiki.pymol.org/index.php?title=Cycle_Valence&amp;diff=5353&amp;oldid=prev</id>
		<title>Pyadmin: 8 revisions</title>
		<link rel="alternate" type="text/html" href="https://wiki.pymol.org/index.php?title=Cycle_Valence&amp;diff=5353&amp;oldid=prev"/>
		<updated>2014-03-28T01:43:41Z</updated>

		<summary type="html">&lt;p&gt;8 revisions&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;'''cycle_valence''' cycles the valence on the currently selected bond.&lt;br /&gt;
&lt;br /&gt;
===USAGE===&lt;br /&gt;
 cycle_valence [ h_fill ]&lt;br /&gt;
&lt;br /&gt;
===PYMOL API===&lt;br /&gt;
&amp;lt;source lang=&amp;quot;python&amp;quot;&amp;gt;&lt;br /&gt;
cmd.cycle_valence(int h_fill)&lt;br /&gt;
&amp;lt;/source&amp;gt;&lt;br /&gt;
&lt;br /&gt;
===EXAMPLES===&lt;br /&gt;
 cycle_valence&lt;br /&gt;
 cycle_valence 0&lt;br /&gt;
&lt;br /&gt;
===NOTES===&lt;br /&gt;
If the h_fill flag is true, hydrogens will be added or removed to satisfy valence requirements.&lt;br /&gt;
 &lt;br /&gt;
This function is usually connected to the DELETE key or &amp;quot;CTRL-W&amp;quot;.  (Try CTRL-W first.)&lt;br /&gt;
&lt;br /&gt;
There are two distinct ways to cycle a bond valence in PyMOL. First, if you start by clicking the Builder button you don't need to worry about Editing Mode, PyMOL will take care of that for you.  After clicking Builder, click Cycle.  In green text you should see, &amp;quot;Pick bonds to set as Cycle bond...&amp;quot; now just use the LEFT mouse button to click on a bond (not an atom). If you repeatedly click the bond, PyMOL will cycle the valence. The second method requires PyMOL to be in Editing Mode. To ensure you're in Editing Mode, please either click Mouse &amp;gt; 3 Button Editing.  Now, using the mouse please CTRL-RIGHT-click on a bond (not an atom).  The white cuff appears with a number (the angle of the substituents).  Last, type CTRL-w to cycle the bond.&lt;br /&gt;
&lt;br /&gt;
===SEE ALSO===&lt;br /&gt;
[[remove_picked]], [[attach]], [[replace]], [[fuse]], [[h_fill]] [[Edit_Keys]]&lt;br /&gt;
&lt;br /&gt;
[[Category:Commands|Cycle Valence]]&lt;br /&gt;
[[Category:Editing|Cycle Valence]]&lt;/div&gt;</summary>
		<author><name>Pyadmin</name></author>
	</entry>
	<entry>
		<id>https://wiki.pymol.org/index.php?title=Cycle_Valence&amp;diff=5349&amp;oldid=prev</id>
		<title>Vinnyrose at 14:48, 20 June 2009</title>
		<link rel="alternate" type="text/html" href="https://wiki.pymol.org/index.php?title=Cycle_Valence&amp;diff=5349&amp;oldid=prev"/>
		<updated>2009-06-20T14:48:43Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left diff-editfont-monospace&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 14:48, 20 June 2009&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l24&quot; &gt;Line 24:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 24:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Commands|Cycle Valence]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Commands|Cycle Valence]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Category:Editing Module|Cycle Valence]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Vinnyrose</name></author>
	</entry>
	<entry>
		<id>https://wiki.pymol.org/index.php?title=Cycle_Valence&amp;diff=5348&amp;oldid=prev</id>
		<title>Vinnyrose at 13:42, 20 June 2009</title>
		<link rel="alternate" type="text/html" href="https://wiki.pymol.org/index.php?title=Cycle_Valence&amp;diff=5348&amp;oldid=prev"/>
		<updated>2009-06-20T13:42:47Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;===DESCRIPTION===&lt;br /&gt;
'''cycle_valence''' cycles the valence on the currently selected bond.&lt;br /&gt;
&lt;br /&gt;
===USAGE===&lt;br /&gt;
 cycle_valence [ h_fill ]&lt;br /&gt;
&lt;br /&gt;
===PYMOL API===&lt;br /&gt;
&amp;lt;source lang=&amp;quot;python&amp;quot;&amp;gt;&lt;br /&gt;
cmd.cycle_valence(int h_fill)&lt;br /&gt;
&amp;lt;/source&amp;gt;&lt;br /&gt;
&lt;br /&gt;
===EXAMPLES===&lt;br /&gt;
 cycle_valence&lt;br /&gt;
 cycle_valence 0&lt;br /&gt;
&lt;br /&gt;
===NOTES===&lt;br /&gt;
If the h_fill flag is true, hydrogens will be added or removed to&lt;br /&gt;
satisfy valence requirements.&lt;br /&gt;
 &lt;br /&gt;
This function is usually connected to the DELETE key and &amp;quot;CTRL-W&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
===SEE ALSO===&lt;br /&gt;
[[Cmd remove_picked]], [[Cmd attach]], [[Cmd replace]], [[Cmd fuse]], [[Cmd h_fill]]&lt;br /&gt;
&lt;br /&gt;
[[Category:Commands|Cycle Valence]]&lt;/div&gt;</summary>
		<author><name>Vinnyrose</name></author>
	</entry>
	<entry>
		<id>https://wiki.pymol.org/index.php?title=Cycle_Valence&amp;diff=5345&amp;oldid=prev</id>
		<title>Tree at 01:48, 22 February 2005</title>
		<link rel="alternate" type="text/html" href="https://wiki.pymol.org/index.php?title=Cycle_Valence&amp;diff=5345&amp;oldid=prev"/>
		<updated>2005-02-22T01:48:05Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;===DESCRIPTION===&lt;br /&gt;
    &amp;quot;cycle_valence&amp;quot; cycles the valence on the currently selected bond.&lt;br /&gt;
 &lt;br /&gt;
===USAGE===&lt;br /&gt;
    cycle_valence [ h_fill ]&lt;br /&gt;
 &lt;br /&gt;
===PYMOL API===&lt;br /&gt;
 &amp;lt;source lang=&amp;quot;python&amp;quot;&amp;gt;&lt;br /&gt;
   cmd.cycle_valence(int h_fill)&lt;br /&gt;
 &amp;lt;/source&amp;gt;&lt;br /&gt;
 &lt;br /&gt;
===EXAMPLES===&lt;br /&gt;
   cycle_valence&lt;br /&gt;
   cycle_valence 0&lt;br /&gt;
 &lt;br /&gt;
===NOTES===&lt;br /&gt;
If the h_fill flag is true, hydrogens will be added or removed to&lt;br /&gt;
satisfy valence requirements.&lt;br /&gt;
 &lt;br /&gt;
   This function is usually connected to the DELETE key and &amp;quot;CTRL-W&amp;quot;.&lt;br /&gt;
 &lt;br /&gt;
===SEE ALSO===&lt;br /&gt;
 &lt;br /&gt;
   [[Cmd remove_picked]], [[Cmd attach]], [[Cmd replace]], [[Cmd fuse]], [[Cmd h_fill]]&lt;br /&gt;
&lt;br /&gt;
[[Category:Commands|cycle_valence]]&lt;/div&gt;</summary>
		<author><name>Tree</name></author>
	</entry>
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