CA ModelServer 0.9.12 1 0 0 0 0 0 0 0 0 0 0 21.9970 -51.2020 46.7080 CA 0 2 0 0 0 0 0 0 0 0 0 0 M END > IBUVNIQ1r3q4mJ_fqgZjew > 2025-07-04 04:58:14 > 0.9.12 > ligand > pdb-bcif > 5j3x > atom_site > {"label_asym_id":"U","auth_seq_id":503} > 44 > 25 > 66 > 307 > 0 > 1 $$$$