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  • morning latte
    Member
    • Jun 2013
    • 91

    blastall error

    Hello experts,

    I have had no problem running blastall using the command below so far.

    blastall -i query.fa -d database -p blastx -e 1e-5 -a 8 -o output.txt

    And all of sudden, I am getting the same warning message as below. I even tried the same query file that was run fine without problem last time but it wasn't run fine this time generating the warning message.

    [blastall] WARNING: contig-100_131270: Could not calculate ungapped Karlin-Altschul parameters due to an invalid query sequence or its translation. Please verify the query sequence(s) and/or filtering options.

    Could anyone give me any comment on this? Any help would be greatly appreciated.
  • maubp
    Peter (Biopython etc)
    • Jul 2009
    • 1544

    #2
    What is the sequence for contig-100_131270, can you see anything odd like invalid nucleotides?

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