Install dssp by entering the following commands in the terminal:
sudo apt update sudo apt install dssp
Description:
protein secondary structure assignment based on 3D structure
DSSP is an application you use to assign the secondary structure of a protein based on its solved three dimensional (3D) structure. . This version (2) of DSSP is a rewrite that produces the same output as the original DSSP, but deals better with exceptions in PDB files and is much faster.
Homepage: http://www.cmbi.ru.nl/dssp.html
Version: 3.0.0-2
Section: universe/science