CA ModelServer 0.9.12 1 0 0 0 0 0 0 0 0 0 0 13.9110 62.8400 116.2030 CA 0 2 0 0 0 0 0 0 0 0 0 0 M END > pnDq4GIwpirdkCMQlfEyeA > 2025-07-12 11:02:53 > 0.9.12 > ligand > pdb-bcif > 1xk4 > atom_site > {"label_asym_id":"X","auth_seq_id":1512} > 17 > 21 > 9 > 254 > 0 > 1 $$$$