Choose a BLAST program.

    Program         Database 

    Enter the query sequence(s) in FASTA format or plain text.

    Multiple queries should be entered in FASTA format.

    Or upload your sequence file



    Maximum number of subjects:

    BLASTN task:         for blastn

    Word size:       for blastn, tblastn, tblastx

    Gap open:       for blastn, tblastn

    Gap extended:       for blastn, tblastn

    Mismatch penalty:       for blastn

    Match reward:       for blastn

    Substitution matrix:         for tblastn, tblastx