CA ModelServer 0.9.12 1 0 0 0 0 0 0 0 0 0 0 8.8000 -23.6650 -17.8080 CA 0 2 0 0 0 0 0 0 0 0 0 0 M END > Im7bDMgQI9NIx_pWfzcMeA > 2025-07-07 05:22:17 > 0.9.12 > ligand > pdb-bcif > 4k1c > atom_site > {"label_asym_id":"Z","auth_seq_id":503} > 18 > 10 > 19 > 352 > 0 > 1 $$$$