Computes the accessibility as well as the SASA for each reside from the indicated protein.
Usage
acc.dssp(pdb, aa = 'all')
Value
A dataframe where each row is an individual residue of the selected protein. The variables computed, among others, are:
(i) the secondary structure (ss) element to which the residue belongs,
(ii) the solvent accessible surface area (sasa) of each residue in square angstrom (Ų), and
(iii) the accessibility (acc) computed as the percent of the sasa that the residue X would have in the tripeptide GXG with the polypeptide skeleton in an extended conformation and the side chain in the conformation most frequently observed in proteins.
Arguments
pdb
is either a PDB id, or the path to a pdb file.
aa
one letter code for the amino acid of interest, or 'all' for all the protein residues.
Author
Juan Carlos Aledo
Details
You must have installed DSSP on your system and in the search path for executables.
References
Miller et al (1987) J. Mol. Biol. 196: 641-656 (PMID: 3681970).
Touw et al (2015) Nucl. Ac. Res. 43(Database issue): D364-D368 (PMID: 25352545).