FE ModelServer 0.9.12 1 0 0 0 0 0 0 0 0 0 0 -52.3760 132.0670 -17.2340 FE 0 1 0 0 0 0 0 0 0 0 0 0 M END > 6rftmsgS4D6-5nTj-9Z1Fg > 2025-07-09 10:46:13 > 0.9.12 > ligand > pdb-bcif > 4v1x > atom_site > {"label_asym_id":"M","auth_seq_id":481} > 137 > 20 > 241 > 409 > 0 > 1 $$$$