Getting Unremediated PDB Files

From Proteopedia

The main reason for getting unremediated PDB files is that when the remediated PDB files contain DNA, Protein Explorer (and perhaps some other software) does not display the DNA properly. If the PDB file does not contain DNA (protein, RNA, solvent and ligands are OK), you probably don't need the unremediated file.

Use the interface at Eric Martz's UMASS site to get unremediated pdb files from the RCSB Protein Data Bank via FTP.