CA ModelServer 0.9.12 1 0 0 0 0 0 0 0 0 0 0 54.8490 2.7270 3.8040 CA 0 2 0 0 0 0 0 0 0 0 0 0 M END > bu5gmbi3uUj6gSs9zT6ihg > 2025-07-10 18:47:21 > 0.9.12 > ligand > pdb-bcif > 4ect > atom_site > {"label_asym_id":"E","auth_seq_id":502} > 17 > 11 > 12 > 442 > 0 > 1 $$$$