FE ModelServer 0.9.12 1 0 0 0 0 0 0 0 0 0 0 50.0890 53.3620 6.9520 FE 0 1 0 0 0 0 0 0 0 0 0 0 M END > N5CCovYKcRLZToD1cJ379w > 2025-07-04 02:35:00 > 0.9.12 > ligand > pdb-bcif > 1b4u > atom_site > {"label_asym_id":"E","auth_seq_id":501} > 9 > 16 > 14 > 316 > 0 > 1 $$$$