text: user10479: I was wondering if it is possible to download all biological assemblies from the PDB at once (so not the standard asymmetrical files). For example, I want a file containing the coordinates of all atoms in a trimer, instead of only the coordinates of a monomer.
  I saw that you can batch download with a shell script, but I'm not sure if you can also do that for biological assemblies.
  
  user13881: If you go to the wwPDB ftp site https://ftp.wwpdb.org/ in your browser you can find the biological unit structures (and anything else available in the PDB). The caveat of course is that a biounit structure has to have been generated for your structure.
  By way of some examples, to get all biological units you could do (note the ftp instead of https in front of the URL):
  wget ftp://ftp.wwpdb.org/pub/pdb/data/biounit/PDB/all/*
  
  or to get a version organized in directories:
  wget ftp://ftp.wwpdb.org/pub/pdb/data/biounit/PDB/divided/*
  
  Note that this would take a few days to download everything, though. After the first download, you can add a -N to the wget command to just download new files.
  For getting just one file:
  wget ftp://ftp.wwpdb.org/pub/pdb/data/biounit/PDB/divided/00/100d.pdb1.gz
  
  Hope this helps.
  
original_text: 10479: <p>I was wondering if it is possible to download all biological assemblies from the PDB at once (so not the standard asymmetrical files). For example, I want a file containing the coordinates of all atoms in a trimer, instead of only the coordinates of a monomer.</p>
  <p>I saw that you can batch download with a shell script, but I'm not sure if you can also do that for biological assemblies.</p>
   13881: <p>If you go to the wwPDB ftp site <a href="https://ftp.wwpdb.org/" rel="nofollow noreferrer">https://ftp.wwpdb.org/</a> in your browser you can find the biological unit structures (and anything else available in the PDB). The caveat of course is that a biounit structure has to have been generated for your structure.</p>
  <p>By way of some examples, to get all biological units you could do (note the <code>ftp</code> instead of <code>https</code> in front of the URL):</p>
  <pre><code>wget ftp://ftp.wwpdb.org/pub/pdb/data/biounit/PDB/all/*
  </code></pre>
  <p>or to get a version organized in directories:</p>
  <pre><code>wget ftp://ftp.wwpdb.org/pub/pdb/data/biounit/PDB/divided/*
  </code></pre>
  <p>Note that this would take a few days to download everything, though. After the first download, you can add a <code>-N</code> to the <code>wget</code> command to just download new files.</p>
  <p>For getting just one file:</p>
  <pre><code>wget ftp://ftp.wwpdb.org/pub/pdb/data/biounit/PDB/divided/00/100d.pdb1.gz
  </code></pre>
  <p>Hope this helps.</p>
  