FastHmm Installation Guide Before you try to install FastHmm, you should already have installed NCBI BLAST, HMMer, MUSCLE, and CD-HIT. The next step is to expand the fasthmm tarball to create the main fasthmm directories (you may have already done this): cd ~ tar xzf fasthmm-1.0.tar.gz Then you need to run the install script, which populates the fasthmm directories with files and also creates symbolic links in the fasthmm/bin directory to the actual tool executables: cd ~/fasthmm-1.0 ./install.pl -prefix ~/fasthmm-1.0 By default, install.pl looks for the relevant tools in your path, but you can tell it to look elsewhere. Run install.pl without arguments for more information. Finally, you need to populate fasthmm/db directory with databases of protein families. The easiest way to do this is to download the tar files from http://microbesonline.org/fasthmm, e.g. to download and install pfam, cd ~/fasthmm-1.0/fasthmm/db wget http://microbesonline.org/fasthmm/release/fasthmm_pfam_20070723_db.tar.gz tar xzf fasthmm_pfam_20070723_db.tar.gz Unfortunately, these tar files are rather large: the tar files total nearly 3 gigabytes, and they take up another 12 gigabytes when installed. If you wish to run fasthmm on your own set of families, see the fasthmm/db/README file for instructions. For additional assistance, please contact the fastHmm/fastBlast team at http://microbesonline.org/fasthmm or by email to fasthmm@microbesonline.org.