CA ModelServer 0.9.12 1 0 0 0 0 0 0 0 0 0 0 49.9210 -13.2360 -40.1550 CA 0 2 0 0 0 0 0 0 0 0 0 0 M END > 1bYXSZQrIUqRYGHZyPRGaQ > 2025-07-12 15:08:59 > 0.9.12 > ligand > pdb-bcif > 4k1c > atom_site > {"label_asym_id":"K","auth_seq_id":509} > 25 > 8 > 6 > 283 > 0 > 1 $$$$