CA ModelServer 0.9.11 1 0 0 0 0 0 0 0 0 0 0 3.7350 8.0750 115.5930 CA 0 2 0 0 0 0 0 0 0 0 0 0 M END > rfCK22dAhRrhOGTbuUGOxA > 2024-07-05 15:19:28 > 0.9.11 > ligand > pdb-bcif > 1xk4 > atom_site > {"label_asym_id":"NA","auth_seq_id":4521} > 3 > 51 > 21 > 307 > 0 > 1 $$$$