CA ModelServer 0.9.12 1 0 0 0 0 0 0 0 0 0 0 17.0870 9.8350 6.5700 CA 0 2 0 0 0 0 0 0 0 0 0 0 M END > 1zsabd2DUaQsCKnRmmlgBw > 2025-07-07 04:49:46 > 0.9.12 > ligand > pdb-bcif > 2rex > atom_site > {"label_asym_id":"CA","auth_seq_id":551} > 72 > 8 > 5 > 278 > 0 > 1 $$$$