List of non-homologous PDB chains with mutual sequence similarity of less than 25% as of November 2017. Please cite Griep,S., Hobohm,U.: „PDBselect 1992-2009 and PDBfilter-select“, Nucleic Acids Research 38 (2010), D318-D319. A derivation of the "Hobohm-algo" (should be Sander-Hobohm) can be found at CPAN.
