CA ModelServer 0.9.12 1 0 0 0 0 0 0 0 0 0 0 14.8240 -1.7880 161.0540 CA 0 2 0 0 0 0 0 0 0 0 0 0 M END > Cjs9U0TyoF7GRCt27AvZRQ > 2025-07-12 01:48:13 > 0.9.12 > ligand > pdb-bcif > 1xk4 > atom_site > {"label_asym_id":"MA","auth_seq_id":3522} > 55 > 20 > 19 > 330 > 0 > 1 $$$$