Good evening and sorry for the inconvenience,
I am trying to dock a protein and a ligand with HADDOCK 2.4, but when I put the pdb file of the ligand, I get the following error:
Error in PDB file.
Issue when parsing the PDB file at line 1 .
Residue number must be an integer (is ’ ')
Here’s a sample of the starting point of the aformentioned pdb file: