CA ModelServer 0.9.12 1 0 0 0 0 0 0 0 0 0 0 30.2850 1.3170 -75.1970 CA 0 2 0 0 0 0 0 0 0 0 0 0 M END > ChwKOQbaZpIhItdn-n8Zwg > 2025-07-15 00:41:23 > 0.9.12 > ligand > pdb-bcif > 4kpn > atom_site > {"label_asym_id":"P","auth_seq_id":400} > 41 > 13 > 17 > 290 > 0 > 1 $$$$