ZN ModelServer 0.9.12 1 0 0 0 0 0 0 0 0 0 0 54.2300 82.5480 -0.2730 ZN 0 2 0 0 0 0 0 0 0 0 0 0 M END > u91KHWWstXfxA06ZVNJ6HA > 2025-07-02 21:22:48 > 0.9.12 > ligand > pdb-bcif > 4rr2 > atom_site > {"label_asym_id":"F","auth_seq_id":900} > 50 > 8 > 12 > 322 > 0 > 1 $$$$