The program in question was originally called PROPAK (many other
folks have since played with it and some have renamed it....).
A Fortran (!) version of the original that runs on most Unix
workstations is available via anonymous ftp from the machine
dasher.wustl.edu (184.108.40.206) in /pub/propak. A short user's
manual and example output are included.
Biochemistry & Mol. Biophysics
Washington Univ. Med. School
St. Louis, MO 63110
ponder at comet.wustl.edu