pdb_extract

Step 2: Upload Structure Model Coordinates File

PDB-format file must meet format requirements, especially:

• ATOM and HETATM record rows must have correctly aligned columns.
• Each polymer must have a unique Chain ID. If missing, pdb_extract will add one, which should be carefully reviewed in the next step.
• Place a TER card at the end of each complete polymer chain only; do not insert TER cards in the middle of a chain, even if residues are missing.