IUM ModelServer 0.9.12 1 0 0 0 0 0 0 0 0 0 0 -18.0320 27.5010 15.3780 U 0 0 0 0 0 0 0 0 0 0 0 0 M END > vLLJpdeD7L-oXHGSO1gGsQ > 2025-07-15 15:52:41 > 0.9.12 > ligand > pdb-bcif > 1b3f > atom_site > {"label_asym_id":"F","auth_seq_id":521} > 11 > 11 > 7 > 513 > 0 > 1 $$$$