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Perform a Fast BLAST Search

A Fast BLAST® query uses the settings from your most recent search in this session with a new query sequence that you input.

Restriction: The search must have occurred during the current BLAST session.

  1. From the Search menu, select Fast BLAST.

    CAS Registry BLAST fills in your program and option values based on your most recent search and sets all other BLAST parameters to default values.

  2. Enter your new sequence for this search, and click OK.

    The Result Set Manager displays the status of your Fast BLAST search. The Fast BLAST window stays visible.

  3. Enter the sequence for another Fast BLAST search

    – or –

    Click Cancel to close the window.

  4. Continue as you would with a "regular" (non-Fast BLAST) similarity search.

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BLAST® is a registered trademark of the National Library of Medicine.

BLAST® reference information provided in whole or in part from the National Center for Biotechnology Information (NCBI), National Library of Medicine, National Institutes of Health.

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