CA ModelServer 0.9.12 1 0 0 0 0 0 0 0 0 0 0 -28.7660 57.5650 20.8290 CA 0 2 0 0 0 0 0 0 0 0 0 0 M END > _HF42GpgvNT3YhIuHvf6PA > 2025-07-01 02:52:55 > 0.9.12 > ligand > pdb-bcif > 3a4u > atom_site > {"label_asym_id":"C","auth_seq_id":286} > 16 > 9 > 4 > 281 > 0 > 1 $$$$