IUBio

small patterns in BLAST or FASTA

Tim Cutts tjrc1 at mole.bio.cam.ac.uk
Mon May 11 04:04:36 EST 1998


In article <35544867.275B at courrier.usherb.ca>,
Marco Blanchette  <mblanche at courrier.usherb.ca> wrote:
>I tried to run a blast search with a small nucleic acid patterns against
>all the database. The patterns is 9 nucleotide long with a degenerated
>base (tagaytaga). The output produce no match but i know that there is
>at least 9 sequence that have the patterns. I tried the same thing using
>fasta and again no match were found.
>
>I suspect that my pattern is not long enought but i dont understand why
>I can force the program to find a match.
>
>What's the best way to do that kind of search?

FindPatterns, with the caveat that it won't find copies of the pattern
with insertions or deletions.

Tim.



More information about the Info-gcg mailing list

Send comments to us at biosci-help [At] net.bio.net