U1 ModelServer 0.9.12 1 0 0 0 0 0 0 0 0 0 0 -18.0310 27.4540 15.2140 U 0 0 0 0 0 0 0 0 0 0 0 0 M END > e0AeZY2TzJg994eBe94YZw > 2025-07-05 20:21:14 > 0.9.12 > ligand > pdb-bcif > 1b3h > atom_site > {"label_asym_id":"F","auth_seq_id":521} > 7 > 9 > 5 > 333 > 0 > 1 $$$$