DSSP: Assign secondary structure to proteins

DSSP (Dictionary of Secondary Structure in Proteins) is an algorithm originally designed by Wolfgang Kabsch and Chris Sander to standardise secondary structure assigment based on atomic coordinates. DSSP does not predict secondary structure. You can run DSSP using the form below or you can install the program locally. Ready-made annotations of PDB entries are available below and you can also download the whole databank at once. More details about the DSSP output are here.


Use the following form to retrieve a databank entry.


Custom coordinates

Use the following form to submit your own coordinates file. Accepted formats are mmCIF and PDB, optionally compressed using gzip.