How can I limit my BLAST search based on ...
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How can I limit my BLAST search based on Organism?
The option to limit a search to organism and even taxonomic classification is part of the "Limit by Entrez Search" option on most standard BLAST search pages. There is a pull down menu to select the most common organisms found in GenBank and also a field to input the species name, or classification (example: "eubacteria"). Using this option will cause your query sequences to be compared only to sequences in our databases from that organism.
There are also several "specialized" BLAST Pages devoted to different organisms on the main BLAST web page.
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