ZN ModelServer 0.9.12 1 0 0 0 0 0 0 0 0 0 0 22.2670 100.5790 24.5160 ZN 0 2 0 0 0 0 0 0 0 0 0 0 M END > YGdQGY0PvzFEQSAYKJA9Cg > 2025-07-16 05:58:04 > 0.9.12 > ligand > pdb-bcif > 4fec > atom_site > {"label_asym_id":"X","auth_seq_id":503} > 31 > 10 > 20 > 328 > 0 > 1 $$$$