CU ModelServer 0.9.12 1 0 0 0 0 0 0 0 0 0 0 6.5950 -8.4220 -1.9330 CU 0 2 0 0 0 0 0 0 0 0 0 0 M END > lfWpdn2QgCR-cg5ntKn3vQ > 2025-07-03 15:05:58 > 0.9.12 > ligand > pdb-bcif > 2k1r > atom_site > {"label_asym_id":"C","auth_seq_id":142} > 74 > 18 > 73 > 6751 > 0 > 1 $$$$