<?xml version="1.0" encoding="ascii"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <title>Bio.PDB.Polypeptide</title> <link rel="stylesheet" href="epydoc.css" type="text/css" /> <script type="text/javascript" src="epydoc.js"></script> </head> <body bgcolor="white" text="black" link="blue" vlink="#204080" alink="#204080"> <!-- ==================== NAVIGATION BAR ==================== --> <table class="navbar" border="0" width="100%" cellpadding="0" bgcolor="#a0c0ff" cellspacing="0"> <tr valign="middle"> <!-- Tree link --> <th> <a href="module-tree.html">Trees</a> </th> <!-- Index link --> <th> <a href="identifier-index.html">Indices</a> </th> <!-- Help link --> <th> <a href="help.html">Help</a> </th> <th class="navbar" width="100%"></th> </tr> </table> <table width="100%" cellpadding="0" cellspacing="0"> <tr valign="top"> <td width="100%"> <span class="breadcrumbs"> <a href="Bio-module.html">Package Bio</a> :: <a href="Bio.PDB-module.html">Package PDB</a> :: Module Polypeptide </span> </td> <td> <table cellpadding="0" cellspacing="0"> <!-- hide/show private --> <tr><td align="right"><span class="options">[<a href="javascript:void(0);" class="privatelink" onclick="toggle_private();">hide private</a>]</span></td></tr> <tr><td align="right"><span class="options" >[<a href="frames.html" target="_top">frames</a >] | <a href="Bio.PDB.Polypeptide-module.html" target="_top">no frames</a>]</span></td></tr> </table> </td> </tr> </table> <!-- ==================== MODULE DESCRIPTION ==================== --> <h1 class="epydoc">Module Polypeptide</h1><p class="nomargin-top"><span class="codelink"><a href="Bio.PDB.Polypeptide-pysrc.html">source code</a></span></p> <p>Polypeptide related classes (construction and representation).</p> <p>Example:</p> <pre class="py-doctest"> <span class="py-prompt">>>> </span>ppb=PPBuilder() <span class="py-prompt">>>> </span><span class="py-keyword">for</span> pp <span class="py-keyword">in</span> ppb.build_peptides(structure): <span class="py-prompt">>>> </span> <span class="py-keyword">print</span> pp.get_sequence()</pre> <!-- ==================== CLASSES ==================== --> <a name="section-Classes"></a> <table class="summary" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white"> <tr bgcolor="#70b0f0" class="table-header"> <td colspan="2" class="table-header"> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr valign="top"> <td align="left"><span class="table-header">Classes</span></td> <td align="right" valign="top" ><span class="options">[<a href="#section-Classes" class="privatelink" onclick="toggle_private();" >hide private</a>]</span></td> </tr> </table> </td> </tr> <tr> <td width="15%" align="right" valign="top" class="summary"> <span class="summary-type"> </span> </td><td class="summary"> <a href="Bio.PDB.Polypeptide.Polypeptide-class.html" class="summary-name">Polypeptide</a><br /> A polypeptide is simply a list of <a href="Bio.PDB.Residue.Residue-class.html" class="link">Residue</a> objects. </td> </tr> <tr class="private"> <td width="15%" align="right" valign="top" class="summary"> <span class="summary-type"> </span> </td><td class="summary"> <a href="Bio.PDB.Polypeptide._PPBuilder-class.html" class="summary-name" onclick="show_private();">_PPBuilder</a><br /> Base class to extract polypeptides. </td> </tr> <tr> <td width="15%" align="right" valign="top" class="summary"> <span class="summary-type"> </span> </td><td class="summary"> <a href="Bio.PDB.Polypeptide.CaPPBuilder-class.html" class="summary-name">CaPPBuilder</a><br /> Use CA--CA distance to find polypeptides. </td> </tr> <tr> <td width="15%" align="right" valign="top" class="summary"> <span class="summary-type"> </span> </td><td class="summary"> <a href="Bio.PDB.Polypeptide.PPBuilder-class.html" class="summary-name">PPBuilder</a><br /> Use C--N distance to find polypeptides. </td> </tr> </table> <!-- ==================== FUNCTIONS ==================== --> <a name="section-Functions"></a> <table class="summary" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white"> <tr bgcolor="#70b0f0" class="table-header"> <td colspan="2" class="table-header"> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr valign="top"> <td align="left"><span class="table-header">Functions</span></td> <td align="right" valign="top" ><span class="options">[<a href="#section-Functions" class="privatelink" onclick="toggle_private();" >hide private</a>]</span></td> </tr> </table> </td> </tr> <tr> <td width="15%" align="right" valign="top" class="summary"> <span class="summary-type"> </span> </td><td class="summary"> <table width="100%" cellpadding="0" cellspacing="0" border="0"> <tr> <td><span class="summary-sig"><a href="Bio.PDB.Polypeptide-module.html#index_to_one" class="summary-sig-name">index_to_one</a>(<span class="summary-sig-arg">index</span>)</span><br /> Index to corresponding one letter amino acid name.</td> <td align="right" valign="top"> <span class="codelink"><a href="Bio.PDB.Polypeptide-pysrc.html#index_to_one">source code</a></span> </td> </tr> </table> </td> </tr> <tr> <td width="15%" align="right" valign="top" class="summary"> <span class="summary-type"> </span> </td><td class="summary"> <table width="100%" cellpadding="0" cellspacing="0" border="0"> <tr> <td><span class="summary-sig"><a href="Bio.PDB.Polypeptide-module.html#one_to_index" class="summary-sig-name">one_to_index</a>(<span class="summary-sig-arg">s</span>)</span><br /> One letter code to index.</td> <td align="right" valign="top"> <span class="codelink"><a href="Bio.PDB.Polypeptide-pysrc.html#one_to_index">source code</a></span> </td> </tr> </table> </td> </tr> <tr> <td width="15%" align="right" valign="top" class="summary"> <span class="summary-type"> </span> </td><td class="summary"> <table width="100%" cellpadding="0" cellspacing="0" border="0"> <tr> <td><span class="summary-sig"><a href="Bio.PDB.Polypeptide-module.html#index_to_three" class="summary-sig-name">index_to_three</a>(<span class="summary-sig-arg">i</span>)</span><br /> Index to corresponding three letter amino acid name.</td> <td align="right" valign="top"> <span class="codelink"><a href="Bio.PDB.Polypeptide-pysrc.html#index_to_three">source code</a></span> </td> </tr> </table> </td> </tr> <tr> <td width="15%" align="right" valign="top" class="summary"> <span class="summary-type"> </span> </td><td class="summary"> <table width="100%" cellpadding="0" cellspacing="0" border="0"> <tr> <td><span class="summary-sig"><a href="Bio.PDB.Polypeptide-module.html#three_to_index" class="summary-sig-name">three_to_index</a>(<span class="summary-sig-arg">s</span>)</span><br /> Three letter code to index.</td> <td align="right" valign="top"> <span class="codelink"><a href="Bio.PDB.Polypeptide-pysrc.html#three_to_index">source code</a></span> </td> </tr> </table> </td> </tr> <tr> <td width="15%" align="right" valign="top" class="summary"> <span class="summary-type"> </span> </td><td class="summary"> <table width="100%" cellpadding="0" cellspacing="0" border="0"> <tr> <td><span class="summary-sig"><a href="Bio.PDB.Polypeptide-module.html#three_to_one" class="summary-sig-name">three_to_one</a>(<span class="summary-sig-arg">s</span>)</span><br /> Three letter code to one letter code.</td> <td align="right" valign="top"> <span class="codelink"><a href="Bio.PDB.Polypeptide-pysrc.html#three_to_one">source code</a></span> </td> </tr> </table> </td> </tr> <tr> <td width="15%" align="right" valign="top" class="summary"> <span class="summary-type"> </span> </td><td class="summary"> <table width="100%" cellpadding="0" cellspacing="0" border="0"> <tr> <td><span class="summary-sig"><a href="Bio.PDB.Polypeptide-module.html#one_to_three" class="summary-sig-name">one_to_three</a>(<span class="summary-sig-arg">s</span>)</span><br /> One letter code to three letter code.</td> <td align="right" valign="top"> <span class="codelink"><a href="Bio.PDB.Polypeptide-pysrc.html#one_to_three">source code</a></span> </td> </tr> </table> </td> </tr> <tr> <td width="15%" align="right" valign="top" class="summary"> <span class="summary-type"> </span> </td><td class="summary"> <table width="100%" cellpadding="0" cellspacing="0" border="0"> <tr> <td><span class="summary-sig"><a href="Bio.PDB.Polypeptide-module.html#is_aa" class="summary-sig-name">is_aa</a>(<span class="summary-sig-arg">residue</span>, <span class="summary-sig-arg">standard</span>=<span class="summary-sig-default">0</span>)</span><br /> Return 1 if residue object/string is an amino acid.</td> <td align="right" valign="top"> <span class="codelink"><a href="Bio.PDB.Polypeptide-pysrc.html#is_aa">source code</a></span> </td> </tr> </table> </td> </tr> </table> <!-- ==================== VARIABLES ==================== --> <a name="section-Variables"></a> <table class="summary" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white"> <tr bgcolor="#70b0f0" class="table-header"> <td colspan="2" class="table-header"> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr valign="top"> <td align="left"><span class="table-header">Variables</span></td> <td align="right" valign="top" ><span class="options">[<a href="#section-Variables" class="privatelink" onclick="toggle_private();" >hide private</a>]</span></td> </tr> </table> </td> </tr> <tr> <td width="15%" align="right" valign="top" class="summary"> <span class="summary-type"> </span> </td><td class="summary"> <a href="Bio.PDB.Polypeptide-module.html#__doc__" class="summary-name">__doc__</a> = <code title="""" Polypeptide related classes (construction and representation). Example: >>> ppb=PPBuilder() >>> for pp in ppb.build_peptides(structure): >>> print pp.get_sequence() ..."><code class="variable-ellipsis">...</code></code> </td> </tr> <tr> <td width="15%" align="right" valign="top" class="summary"> <span class="summary-type"> </span> </td><td class="summary"> <a href="Bio.PDB.Polypeptide-module.html#standard_aa_names" class="summary-name">standard_aa_names</a> = <code title="['ALA', 'CYS', 'ASP', 'GLU', 'PHE', 'GLY', 'HIS', 'ILE', ..."><code class="variable-group">[</code><code class="variable-quote">'</code><code class="variable-string">ALA</code><code class="variable-quote">'</code><code class="variable-op">, </code><code class="variable-quote">'</code><code class="variable-string">CYS</code><code class="variable-quote">'</code><code class="variable-op">, </code><code class="variable-quote">'</code><code class="variable-string">ASP</code><code class="variable-quote">'</code><code class="variable-op">, </code><code class="variable-quote">'</code><code class="variable-string">GLU</code><code class="variable-quote">'</code><code class="variable-op">, </code><code class="variable-quote">'</code><code class="variable-string">PHE</code><code class="variable-quote">'</code><code class="variable-op">, </code><code class="variable-quote">'</code><code class="variable-string">GLY</code><code class="variable-quote">'</code><code class="variable-op">,</code><code class="variable-ellipsis">...</code></code> </td> </tr> <tr> <td width="15%" align="right" valign="top" class="summary"> <span class="summary-type"> </span> </td><td class="summary"> <a name="aa1"></a><span class="summary-name">aa1</span> = <code title="'ACDEFGHIKLMNPQRSTVWY'"><code class="variable-quote">'</code><code class="variable-string">ACDEFGHIKLMNPQRSTVWY</code><code class="variable-quote">'</code></code> </td> </tr> <tr> <td width="15%" align="right" valign="top" class="summary"> <span class="summary-type"> </span> </td><td class="summary"> <a href="Bio.PDB.Polypeptide-module.html#aa3" class="summary-name">aa3</a> = <code title="['ALA', 'CYS', 'ASP', 'GLU', 'PHE', 'GLY', 'HIS', 'ILE', ..."><code class="variable-group">[</code><code class="variable-quote">'</code><code class="variable-string">ALA</code><code class="variable-quote">'</code><code class="variable-op">, </code><code class="variable-quote">'</code><code class="variable-string">CYS</code><code class="variable-quote">'</code><code class="variable-op">, </code><code class="variable-quote">'</code><code class="variable-string">ASP</code><code class="variable-quote">'</code><code class="variable-op">, </code><code class="variable-quote">'</code><code class="variable-string">GLU</code><code class="variable-quote">'</code><code class="variable-op">, </code><code class="variable-quote">'</code><code class="variable-string">PHE</code><code class="variable-quote">'</code><code class="variable-op">, </code><code class="variable-quote">'</code><code class="variable-string">GLY</code><code class="variable-quote">'</code><code class="variable-op">, </code><code class="variable-quote">'</code><code class="variable-string">HIS</code><code class="variable-quote">'</code><code class="variable-op">, </code><code class="variable-quote">'</code><code class="variable-string">ILE</code><code class="variable-quote">'</code><code class="variable-op">,</code><code class="variable-ellipsis">...</code></code> </td> </tr> <tr> <td width="15%" align="right" valign="top" class="summary"> <span class="summary-type"> </span> </td><td class="summary"> <a href="Bio.PDB.Polypeptide-module.html#d1_to_index" class="summary-name">d1_to_index</a> = <code title="{'A': 0, 'C': 1, 'D': 2, 'E': 3, 'F': 4, 'G': 5, 'H': 6, 'I': 7, ..."><code class="variable-group">{</code><code class="variable-quote">'</code><code class="variable-string">A</code><code class="variable-quote">'</code><code class="variable-op">: </code>0<code class="variable-op">, </code><code class="variable-quote">'</code><code class="variable-string">C</code><code class="variable-quote">'</code><code class="variable-op">: </code>1<code class="variable-op">, </code><code class="variable-quote">'</code><code class="variable-string">D</code><code class="variable-quote">'</code><code class="variable-op">: </code>2<code class="variable-op">, </code><code class="variable-quote">'</code><code class="variable-string">E</code><code class="variable-quote">'</code><code class="variable-op">: </code>3<code class="variable-op">, </code><code class="variable-quote">'</code><code class="variable-string">F</code><code class="variable-quote">'</code><code class="variable-op">: </code>4<code class="variable-op">, </code><code class="variable-quote">'</code><code class="variable-string">G</code><code class="variable-quote">'</code><code class="variable-op">: </code>5<code class="variable-op">,</code><code class="variable-ellipsis">...</code></code> </td> </tr> <tr> <td width="15%" align="right" valign="top" class="summary"> <span class="summary-type"> </span> </td><td class="summary"> <a href="Bio.PDB.Polypeptide-module.html#dindex_to_1" class="summary-name">dindex_to_1</a> = <code title="{0: 'A', 1: 'C', 2: 'D', 3: 'E', 4: 'F', 5: 'G', 6: 'H', 7: 'I', ..."><code class="variable-group">{</code>0<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">A</code><code class="variable-quote">'</code><code class="variable-op">, </code>1<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">C</code><code class="variable-quote">'</code><code class="variable-op">, </code>2<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">D</code><code class="variable-quote">'</code><code class="variable-op">, </code>3<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">E</code><code class="variable-quote">'</code><code class="variable-op">, </code>4<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">F</code><code class="variable-quote">'</code><code class="variable-op">, </code>5<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">G</code><code class="variable-quote">'</code><code class="variable-op">,</code><code class="variable-ellipsis">...</code></code> </td> </tr> <tr> <td width="15%" align="right" valign="top" class="summary"> <span class="summary-type"> </span> </td><td class="summary"> <a href="Bio.PDB.Polypeptide-module.html#d3_to_index" class="summary-name">d3_to_index</a> = <code title="{'ALA': 0, 'ARG': 14, 'ASN': 11, 'ASP': 2, 'CYS': 1, 'GLN': 13, 'GLU': 3, 'GLY': 5, ..."><code class="variable-group">{</code><code class="variable-quote">'</code><code class="variable-string">ALA</code><code class="variable-quote">'</code><code class="variable-op">: </code>0<code class="variable-op">, </code><code class="variable-quote">'</code><code class="variable-string">ARG</code><code class="variable-quote">'</code><code class="variable-op">: </code>14<code class="variable-op">, </code><code class="variable-quote">'</code><code class="variable-string">ASN</code><code class="variable-quote">'</code><code class="variable-op">: </code>11<code class="variable-op">, </code><code class="variable-quote">'</code><code class="variable-string">ASP</code><code class="variable-quote">'</code><code class="variable-op">: </code>2<code class="variable-op">, </code><code class="variable-quote">'</code><code class="variable-string">CYS</code><code class="variable-quote">'</code><code class="variable-ellipsis">...</code></code> </td> </tr> <tr> <td width="15%" align="right" valign="top" class="summary"> <span class="summary-type"> </span> </td><td class="summary"> <a href="Bio.PDB.Polypeptide-module.html#dindex_to_3" class="summary-name">dindex_to_3</a> = <code title="{0: 'ALA', 1: 'CYS', 2: 'ASP', 3: 'GLU', 4: 'PHE', 5: 'GLY', 6: 'HIS', 7: 'ILE', ..."><code class="variable-group">{</code>0<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">ALA</code><code class="variable-quote">'</code><code class="variable-op">, </code>1<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">CYS</code><code class="variable-quote">'</code><code class="variable-op">, </code>2<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">ASP</code><code class="variable-quote">'</code><code class="variable-op">, </code>3<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">GLU</code><code class="variable-quote">'</code><code class="variable-op">, </code>4<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">PHE</code><code class="variable-ellipsis">...</code></code> </td> </tr> <tr> <td width="15%" align="right" valign="top" class="summary"> <span class="summary-type"> </span> </td><td class="summary"> <a name="i"></a><span class="summary-name">i</span> = <code title="19">19</code> </td> </tr> <tr> <td width="15%" align="right" valign="top" class="summary"> <span class="summary-type"> </span> </td><td class="summary"> <a name="n1"></a><span class="summary-name">n1</span> = <code title="'Y'"><code class="variable-quote">'</code><code class="variable-string">Y</code><code class="variable-quote">'</code></code> </td> </tr> <tr> <td width="15%" align="right" valign="top" class="summary"> <span class="summary-type"> </span> </td><td class="summary"> <a name="n3"></a><span class="summary-name">n3</span> = <code title="'TYR'"><code class="variable-quote">'</code><code class="variable-string">TYR</code><code class="variable-quote">'</code></code> </td> </tr> </table> <!-- ==================== FUNCTION DETAILS ==================== --> <a name="section-FunctionDetails"></a> <table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white"> <tr bgcolor="#70b0f0" class="table-header"> <td colspan="2" class="table-header"> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr valign="top"> <td align="left"><span class="table-header">Function Details</span></td> <td align="right" valign="top" ><span class="options">[<a href="#section-FunctionDetails" class="privatelink" onclick="toggle_private();" >hide private</a>]</span></td> </tr> </table> </td> </tr> </table> <a name="index_to_one"></a> <div> <table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white"> <tr><td> <table width="100%" cellpadding="0" cellspacing="0" border="0"> <tr valign="top"><td> <h3 class="epydoc"><span class="sig"><span class="sig-name">index_to_one</span>(<span class="sig-arg">index</span>)</span> </h3> </td><td align="right" valign="top" ><span class="codelink"><a href="Bio.PDB.Polypeptide-pysrc.html#index_to_one">source code</a></span> </td> </tr></table> <p>Index to corresponding one letter amino acid name. For example: 0 to A.</p> <dl class="fields"> </dl> </td></tr></table> </div> <a name="one_to_index"></a> <div> <table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white"> <tr><td> <table width="100%" cellpadding="0" cellspacing="0" border="0"> <tr valign="top"><td> <h3 class="epydoc"><span class="sig"><span class="sig-name">one_to_index</span>(<span class="sig-arg">s</span>)</span> </h3> </td><td align="right" valign="top" ><span class="codelink"><a href="Bio.PDB.Polypeptide-pysrc.html#one_to_index">source code</a></span> </td> </tr></table> <p>One letter code to index. For example: A to 0.</p> <dl class="fields"> </dl> </td></tr></table> </div> <a name="index_to_three"></a> <div> <table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white"> <tr><td> <table width="100%" cellpadding="0" cellspacing="0" border="0"> <tr valign="top"><td> <h3 class="epydoc"><span class="sig"><span class="sig-name">index_to_three</span>(<span class="sig-arg">i</span>)</span> </h3> </td><td align="right" valign="top" ><span class="codelink"><a href="Bio.PDB.Polypeptide-pysrc.html#index_to_three">source code</a></span> </td> </tr></table> <p>Index to corresponding three letter amino acid name. For example: 0 to ALA.</p> <dl class="fields"> </dl> </td></tr></table> </div> <a name="three_to_index"></a> <div> <table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white"> <tr><td> <table width="100%" cellpadding="0" cellspacing="0" border="0"> <tr valign="top"><td> <h3 class="epydoc"><span class="sig"><span class="sig-name">three_to_index</span>(<span class="sig-arg">s</span>)</span> </h3> </td><td align="right" valign="top" ><span class="codelink"><a href="Bio.PDB.Polypeptide-pysrc.html#three_to_index">source code</a></span> </td> </tr></table> <p>Three letter code to index. For example: ALA to 0.</p> <dl class="fields"> </dl> </td></tr></table> </div> <a name="three_to_one"></a> <div> <table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white"> <tr><td> <table width="100%" cellpadding="0" cellspacing="0" border="0"> <tr valign="top"><td> <h3 class="epydoc"><span class="sig"><span class="sig-name">three_to_one</span>(<span class="sig-arg">s</span>)</span> </h3> </td><td align="right" valign="top" ><span class="codelink"><a href="Bio.PDB.Polypeptide-pysrc.html#three_to_one">source code</a></span> </td> </tr></table> <p>Three letter code to one letter code. For example: ALA to A.</p> <dl class="fields"> </dl> </td></tr></table> </div> <a name="one_to_three"></a> <div> <table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white"> <tr><td> <table width="100%" cellpadding="0" cellspacing="0" border="0"> <tr valign="top"><td> <h3 class="epydoc"><span class="sig"><span class="sig-name">one_to_three</span>(<span class="sig-arg">s</span>)</span> </h3> </td><td align="right" valign="top" ><span class="codelink"><a href="Bio.PDB.Polypeptide-pysrc.html#one_to_three">source code</a></span> </td> </tr></table> <p>One letter code to three letter code. For example: A to ALA.</p> <dl class="fields"> </dl> </td></tr></table> </div> <a name="is_aa"></a> <div> <table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white"> <tr><td> <table width="100%" cellpadding="0" cellspacing="0" border="0"> <tr valign="top"><td> <h3 class="epydoc"><span class="sig"><span class="sig-name">is_aa</span>(<span class="sig-arg">residue</span>, <span class="sig-arg">standard</span>=<span class="sig-default">0</span>)</span> </h3> </td><td align="right" valign="top" ><span class="codelink"><a href="Bio.PDB.Polypeptide-pysrc.html#is_aa">source code</a></span> </td> </tr></table> <p>Return 1 if residue object/string is an amino acid.</p> <dl class="fields"> <dt>Parameters:</dt> <dd><ul class="nomargin-top"> <li><strong class="pname"><code>residue</code></strong> (<a href="Bio.PDB.Residue.Residue-class.html" class="link">Residue</a> or string) - a <a href="Bio.PDB.Residue.Residue-class.html" class="link">Residue</a> object OR a three letter amino acid code</li> <li><strong class="pname"><code>standard</code></strong> (boolean) - flag to check for the 20 AA (default false)</li> </ul></dd> </dl> </td></tr></table> </div> <br /> <!-- ==================== VARIABLES DETAILS ==================== --> <a name="section-VariablesDetails"></a> <table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white"> <tr bgcolor="#70b0f0" class="table-header"> <td colspan="2" class="table-header"> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr valign="top"> <td align="left"><span class="table-header">Variables Details</span></td> <td align="right" valign="top" ><span class="options">[<a href="#section-VariablesDetails" class="privatelink" onclick="toggle_private();" >hide private</a>]</span></td> </tr> </table> </td> </tr> </table> <a name="__doc__"></a> <div> <table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white"> <tr><td> <h3 class="epydoc">__doc__</h3> <dl class="fields"> </dl> <dl class="fields"> <dt>Value:</dt> <dd><table><tr><td><pre class="variable"> """ Polypeptide related classes (construction and representation). Example: >>> ppb=PPBuilder() >>> for pp in ppb.build_peptides(structure): >>> print pp.get_sequence() <code class="variable-ellipsis">...</code> </pre></td></tr></table> </dd> </dl> </td></tr></table> </div> <a name="standard_aa_names"></a> <div> <table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white"> <tr><td> <h3 class="epydoc">standard_aa_names</h3> <dl class="fields"> </dl> <dl class="fields"> <dt>Value:</dt> <dd><table><tr><td><pre class="variable"> <code class="variable-group">[</code><code class="variable-quote">'</code><code class="variable-string">ALA</code><code class="variable-quote">'</code><code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">CYS</code><code class="variable-quote">'</code><code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">ASP</code><code class="variable-quote">'</code><code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">GLU</code><code class="variable-quote">'</code><code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">PHE</code><code class="variable-quote">'</code><code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">GLY</code><code class="variable-quote">'</code><code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">HIS</code><code class="variable-quote">'</code><code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">ILE</code><code class="variable-quote">'</code><code class="variable-op">,</code> <code class="variable-ellipsis">...</code> </pre></td></tr></table> </dd> </dl> </td></tr></table> </div> <a name="aa3"></a> <div> <table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white"> <tr><td> <h3 class="epydoc">aa3</h3> <dl class="fields"> </dl> <dl class="fields"> <dt>Value:</dt> <dd><table><tr><td><pre class="variable"> <code class="variable-group">[</code><code class="variable-quote">'</code><code class="variable-string">ALA</code><code class="variable-quote">'</code><code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">CYS</code><code class="variable-quote">'</code><code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">ASP</code><code class="variable-quote">'</code><code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">GLU</code><code class="variable-quote">'</code><code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">PHE</code><code class="variable-quote">'</code><code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">GLY</code><code class="variable-quote">'</code><code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">HIS</code><code class="variable-quote">'</code><code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">ILE</code><code class="variable-quote">'</code><code class="variable-op">,</code> <code class="variable-ellipsis">...</code> </pre></td></tr></table> </dd> </dl> </td></tr></table> </div> <a name="d1_to_index"></a> <div> <table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white"> <tr><td> <h3 class="epydoc">d1_to_index</h3> <dl class="fields"> </dl> <dl class="fields"> <dt>Value:</dt> <dd><table><tr><td><pre class="variable"> <code class="variable-group">{</code><code class="variable-quote">'</code><code class="variable-string">A</code><code class="variable-quote">'</code><code class="variable-op">: </code>0<code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">C</code><code class="variable-quote">'</code><code class="variable-op">: </code>1<code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">D</code><code class="variable-quote">'</code><code class="variable-op">: </code>2<code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">E</code><code class="variable-quote">'</code><code class="variable-op">: </code>3<code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">F</code><code class="variable-quote">'</code><code class="variable-op">: </code>4<code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">G</code><code class="variable-quote">'</code><code class="variable-op">: </code>5<code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">H</code><code class="variable-quote">'</code><code class="variable-op">: </code>6<code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">I</code><code class="variable-quote">'</code><code class="variable-op">: </code>7<code class="variable-op">,</code> <code class="variable-ellipsis">...</code> </pre></td></tr></table> </dd> </dl> </td></tr></table> </div> <a name="dindex_to_1"></a> <div> <table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white"> <tr><td> <h3 class="epydoc">dindex_to_1</h3> <dl class="fields"> </dl> <dl class="fields"> <dt>Value:</dt> <dd><table><tr><td><pre class="variable"> <code class="variable-group">{</code>0<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">A</code><code class="variable-quote">'</code><code class="variable-op">,</code> 1<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">C</code><code class="variable-quote">'</code><code class="variable-op">,</code> 2<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">D</code><code class="variable-quote">'</code><code class="variable-op">,</code> 3<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">E</code><code class="variable-quote">'</code><code class="variable-op">,</code> 4<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">F</code><code class="variable-quote">'</code><code class="variable-op">,</code> 5<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">G</code><code class="variable-quote">'</code><code class="variable-op">,</code> 6<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">H</code><code class="variable-quote">'</code><code class="variable-op">,</code> 7<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">I</code><code class="variable-quote">'</code><code class="variable-op">,</code> <code class="variable-ellipsis">...</code> </pre></td></tr></table> </dd> </dl> </td></tr></table> </div> <a name="d3_to_index"></a> <div> <table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white"> <tr><td> <h3 class="epydoc">d3_to_index</h3> <dl class="fields"> </dl> <dl class="fields"> <dt>Value:</dt> <dd><table><tr><td><pre class="variable"> <code class="variable-group">{</code><code class="variable-quote">'</code><code class="variable-string">ALA</code><code class="variable-quote">'</code><code class="variable-op">: </code>0<code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">ARG</code><code class="variable-quote">'</code><code class="variable-op">: </code>14<code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">ASN</code><code class="variable-quote">'</code><code class="variable-op">: </code>11<code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">ASP</code><code class="variable-quote">'</code><code class="variable-op">: </code>2<code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">CYS</code><code class="variable-quote">'</code><code class="variable-op">: </code>1<code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">GLN</code><code class="variable-quote">'</code><code class="variable-op">: </code>13<code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">GLU</code><code class="variable-quote">'</code><code class="variable-op">: </code>3<code class="variable-op">,</code> <code class="variable-quote">'</code><code class="variable-string">GLY</code><code class="variable-quote">'</code><code class="variable-op">: </code>5<code class="variable-op">,</code> <code class="variable-ellipsis">...</code> </pre></td></tr></table> </dd> </dl> </td></tr></table> </div> <a name="dindex_to_3"></a> <div> <table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white"> <tr><td> <h3 class="epydoc">dindex_to_3</h3> <dl class="fields"> </dl> <dl class="fields"> <dt>Value:</dt> <dd><table><tr><td><pre class="variable"> <code class="variable-group">{</code>0<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">ALA</code><code class="variable-quote">'</code><code class="variable-op">,</code> 1<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">CYS</code><code class="variable-quote">'</code><code class="variable-op">,</code> 2<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">ASP</code><code class="variable-quote">'</code><code class="variable-op">,</code> 3<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">GLU</code><code class="variable-quote">'</code><code class="variable-op">,</code> 4<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">PHE</code><code class="variable-quote">'</code><code class="variable-op">,</code> 5<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">GLY</code><code class="variable-quote">'</code><code class="variable-op">,</code> 6<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">HIS</code><code class="variable-quote">'</code><code class="variable-op">,</code> 7<code class="variable-op">: </code><code class="variable-quote">'</code><code class="variable-string">ILE</code><code class="variable-quote">'</code><code class="variable-op">,</code> <code class="variable-ellipsis">...</code> </pre></td></tr></table> </dd> </dl> </td></tr></table> </div> <br /> <!-- ==================== NAVIGATION BAR ==================== --> <table class="navbar" border="0" width="100%" cellpadding="0" bgcolor="#a0c0ff" cellspacing="0"> <tr valign="middle"> <!-- Tree link --> <th> <a href="module-tree.html">Trees</a> </th> <!-- Index link --> <th> <a href="identifier-index.html">Indices</a> </th> <!-- Help link --> <th> <a href="help.html">Help</a> </th> <th class="navbar" width="100%"></th> </tr> </table> <table border="0" cellpadding="0" cellspacing="0" width="100%%"> <tr> <td align="left" class="footer"> Generated by Epydoc 3.0.1 on Mon Sep 15 09:26:24 2008 </td> <td align="right" class="footer"> <a target="mainFrame" href="http://epydoc.sourceforge.net" >http://epydoc.sourceforge.net</a> </td> </tr> </table> <script type="text/javascript"> 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