CA ModelServer 0.9.12 1 0 0 0 0 0 0 0 0 0 0 -5.1950 -19.9090 -0.4580 CA 0 2 0 0 0 0 0 0 0 0 0 0 M END > OpCfu1wspN_O7rkydTod2w > 2025-07-09 12:17:07 > 0.9.12 > ligand > pdb-bcif > 4p99 > atom_site > {"label_asym_id":"K","auth_seq_id":507} > 28 > 31 > 15 > 269 > 0 > 1 $$$$