Answers.Body: <p>Since this is a 40S ribosomal protein, and therefore eukaryotic-specific (as the description says) the listing of <em>E. coli</em> is not intuitive as you note. If you go down to "Macromolecules" and click on "Nucleic Acids/Hybrids" you can see the listed <em>E. coli</em> sequence is just 28bp, and all <code>U</code>s (poly(U) tail?). So, you can safely ignore the bacterial annotation I think.</p>
  
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Answers.CreationDate: 2020-04-20T08:46:34.590Z
Answers.LastActivityDate: 2020-04-20T08:46:34.590Z
Answers.UserDisplayName: Chris_Rands
Body: <p>I'm browsing through ribosomes which have been modeled with Cryoem on PDB and am pretty confused by the fact that for some, PDB, or rather the authors of the deposition probably, put multiple organisms from different domains of life... How does one interpret that?</p>
  
  <p>So far as i understand <em>bos taurus</em> is a cow and <em>e.coli</em> is a bacterium. So eukarya and bacteria.. Thank you.<a href="https://i.sstatic.net/tWXD0.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/tWXD0.png" alt="enter image description here"></a></p>
  
Tags: <pdb>
Title: What does it mean when PDB lists multiple organisms for the same structure?
ThreadText: # What does it mean when PDB lists multiple organisms for the same structure?
  
  (Asked by: username_0 on 2020-04-20)
  
  I'm browsing through ribosomes which have been modeled with Cryoem on PDB and am pretty confused by the fact that for some, PDB, or rather the authors of the deposition probably, put multiple organisms from different domains of life... How does one interpret that?
  
  So far as i understand *bos taurus* is a cow and *e.coli* is a bacterium. So eukarya and bacteria.. Thank you.[![enter image description here](https://i.sstatic.net/tWXD0.png)](https://i.sstatic.net/tWXD0.png)
  
  **Tags:** pdb
  
  
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  ## 1 answers
  
  ### Answer by username_1 on 2020-04-20. Score: 3 | Accepted answer
  
  Since this is a 40S ribosomal protein, and therefore eukaryotic-specific (as the description says) the listing of *E. coli* is not intuitive as you note. If you go down to "Macromolecules" and click on "Nucleic Acids/Hybrids" you can see the listed *E. coli* sequence is just 28bp, and all `U`s (poly(U) tail?). So, you can safely ignore the bacterial annotation I think.
  
  
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