| Description | Energy | Frequency | Structure |
|---|---|---|---|
| Standard potential (20 amino acid types) | JO20.de.gz (gzipped) | JO20.out.gz (gzipped) | JO20.str (text) |
| Reduced WW5 potential (5 amino acid types: Wang and Wang) | WW5.de.gz (gzipped) | WW5.out.gz (gzipped) | WW5.str (text) |
| Reduced SR5 potential (5 amino acid types: Solis and Rackovsky) | SR5.de.gz (gzipped) | SR5.out.gz (gzipped) | SR5.str (text) |
| Reduced MU4 potential (4 amino acid types: Murphy et al.) | MU4.de.gz (gzipped) | MU4.out.gz (gzipped) | MU4.str (text) |
| Reduced MM5 potential (5 amino acid types: Melo and Marti-Renom) | MM5.de.gz (gzipped) | MM5.out.gz (gzipped) | MM5.str (text) |
| Random potentials (5 amino acid types: Random grouping) | FTP files (gzipped) | --- | RD5.str (text) |