I submitted PDB structures via HADDOCK Server 2.4, which contain SF4, e.g.:
HETATM 2466 S1 SF4 X 412 106.593 23.084 21.145 1.00 56.77 X S
HETATM 2473 FE4 SF4 X 412 107.507 21.347 22.399 1.00 62.48 X FE
However, the server shows the following error:
The following error occurred when processing one of your PDB file: Unable to generate topology for ligand IOD. PRODRG did not create the required output.
How can i submit PDB structure with SF4 ligand.
Thanks for helping.