Hi,
>I search for a pc-program (Win-NT or Linux) with the following features:
>1. DNA-Homology-Searches (around 500 sequences)
Try the FASTA program by William Pearson
ftp://ftp.virginia.edu/pub/fasta
>2. DNA-Sequence String Search
>3. phylogeny-tree applications
>4. DNA-Alignment
Try CLUSTALW for DNA alignment. Note that the newest version 1.8 of
CLUSTALW contains also a tool for phylogeny-tree design (njPLOTDOS)
ftp://ftp-igbmc.u-strasbg.fr/pub/ClustalW
Bye
Olivier
P.S. I wrote an application to extract sequences of real interest from
a FASTA output to do directly a CLUSTALW alignment called
FASTA-BLAST_scan.
If you are interessed check http://annhyb.free.fr
