text: user3580: I would like to blast a peptide sequence against all available plant proteome databases, i.e. a blastp metaproteome analysis.
  What tools are available? Which database can I use?
  
  user3580: A simple BLAST on the UniProt website does the trick (target database plants). 
  Best matches are subsequences ETVEREKE and EKKRRETV in Green alga and Eelgrass respectively.
  
original_text: 3580: <p>I would like to blast a peptide sequence against all available plant proteome databases, i.e. a <code>blastp</code> metaproteome analysis.</p>
  
  <p>What tools are available? Which database can I use?</p>
   3580: <p>A simple BLAST on the <a href="https://www.uniprot.org/blast/" rel="nofollow noreferrer">UniProt website</a> does the trick (target database <em>plants</em>). </p>
  
  <p>Best matches are subsequences <code>ETVEREKE</code> and <code>EKKRRETV</code> in <em>Green alga</em> and <em>Eelgrass</em> respectively.</p>
  