See pcfold (pcfold-4.0.tar.Z,pcfold.readme) at ftp://iubio.bio.indiana.edu/ molbio/ibmpc/ or http://iubio.bio.indiana.edu/soft/molbio/ibmpc/ - Don -- -- d.gilbert--bioinformatics--indiana-u--bloomington-in-47405 -- gilbertd at bio.indiana.edu
