These classes validate the file from
ftp://ftp.sanger.ac.uk/pub/databases/Pfam/mappings/pdb_pfam_mapping.txt
to remove issues such as illegal PDB sequence numbers (negative), as
well as replace all the chain information present in the
bestPfamLines_pfamToPDB.txt file by performing a SQL like Join function.
PATH information may need to be updated, but because of the nature of
these files you may not want to run these on the only copy of these
files, but rather run in a separate directory for easy "diff" or
compares before and after.