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+*********************************************************
+
+Note on environment variables:
+
+ HMMER reads three environment variables:
+ HMMERDB - directory location of HMM databases (e.g. PFAM)
+ BLASTDB - directory location of FASTA-formatted sequence databases
+ BLASTMAT - directory location of PAM scoring matrices
+
+ If you have installed BLAST, you probably already have these
+ environment variables set in system-wide or user-specific
+ .cshrc files. They are optional. If they are set up, you
+ can simplify command lines to:
+ > hmmpfam pfam my.query
+ > hmmsearch my.hmm swiss35
+ instead of
+ > hmmpfam /some/long/path/to/databases/pfam my.query
+ > hmmsearch my.hmm /some/long/path/to/databases/swiss35
+
+Please see the website http://hmmer.wustl.edu/ for more information.
+
+*********************************************************