> In article <2rm5m8$cef at senator-bedfellow.MIT.EDU>, lluis at aaRS.mit.edu> (Lluis Ribas) wrote:
>> > Is there someone that can give me a clue about the following
> > search :
> >
> > I need proteins of less than 50 residues without any valines
> > in their sequences.
> >
> > How would you go about searching the databases for them ?
And Conrad Halling replied:
>> I know of no way to find out this answer using GCG or Entrez. However, I
> modified some code that searches the FastA version of GenPept and did this
> search on a Macintosh computer.
>
Actually, using the GCG package on the vax, you can use findpatterns to answer
the question. Use the pattern <~V{1,49}~V> to search your favorite database.
(ie., N-term not val, followed by 1-49 residues that are not val, and the cterm)
If you want to use the sequences for some other analyses, or as a database,
use the /names option.
Later,
Keith
================================================================================
Keith O. Elliston | Phone: (908)594-6099
Dept. of Bioinformatics | Fax: (908)594-2929
Merck Research Laboratories | Email: Elliston at merck.com
Box 2000 / Mail Stop RY80A-1 | Elliston at aol.com
Rahway, NJ 07065 U.S.A. | Elliston at mbcl.rutgers.edu
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