Gene families that match your query are returned in the order of relevance. 

You can apply filters to refine the search results. 

• Taxonomic Range
  The taxonomic range of a gene family indicates the most recent common ancestor (MRCA) of all children in that family. The number next to each taxonomic range indicates how many gene families from the search have that MRCA. Check the check box in front of a taxonomic range, will narrow down the search results to families that have the MRCA. 
  
  
• Organisms Included 
   indicates the species of a member (a protein) of a gene family. The number next to each organism indicates how many gene families from the search have any proteins from that specific organism. Check the check box in front of an organism, will narrow down the search results to families that have any proteins from the organism. 
• The logical operation for multiple selections of the filters is AND. For example, checking Arabidopsis thalina and Zea mays from the organism filter, will return any gene family that has Arabidopsis protein(s) as well as corn protein(s).