text: user9346: We have a docking target protein with multiple chains (A,B and C). However, I just need chain A. How can I delete the 2 other chains from the docking target protein.
  
  
  
  user4622: You can also do this with pdb-tools:
  pdb_selchain -A prot.pdb > prot_A.pdb
  
  
  user6322: If the tag r is incorrect, the easiest way is to download and install PyMOL: https://pymol.org/2/
  Drap and drop your pdb file and type remove not chain A.
  Then save molecule via the menu as pdb or type save some_file_name.pdb (will be in your home root folder).
  
original_text: 9346: <p>We have a docking target protein with multiple chains (A,B and C). However, I just need chain A. How can I delete the 2 other chains from the docking target protein.</p>
  <p><a href="https://i.stack.imgur.com/yOrFq.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/yOrFq.jpg" alt="enter image description here" /></a></p>
  <p><a href="https://i.stack.imgur.com/XmPcv.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/XmPcv.jpg" alt="enter image description here" /></a></p>
   4622: <p>You can also do this with <a href="http://www.bonvinlab.org/pdb-tools/" rel="nofollow noreferrer">pdb-tools</a>:</p>
  <pre><code>pdb_selchain -A prot.pdb &gt; prot_A.pdb
  </code></pre>
   6322: <p>If the tag <code>r</code> is incorrect, the easiest way is to download and install <code>PyMOL</code>: <a href="https://pymol.org/2/" rel="nofollow noreferrer">https://pymol.org/2/</a></p>
  <p>Drap and drop your pdb file and type <code>remove not chain A</code>.
  Then save molecule via the menu as pdb or type <code>save some_file_name.pdb</code> (will be in your home root folder).</p>
  