../ pdb_000031ak_xyz-ext-atom_v1-0.xml.gz 02-Oct-2026 15:05 185K pdb_000031ak_xyz-no-atom_v1-0.xml.gz 02-Oct-2026 15:05 50K pdb_000031ak_xyz_v1-0.cif.gz 02-Oct-2026 15:05 228K pdb_000031ak_xyz_v1-0.xml.gz 02-Oct-2026 15:05 308K