CA ModelServer 0.9.12 1 0 0 0 0 0 0 0 0 0 0 77.7460 -11.4420 8.3800 CA 0 2 0 0 0 0 0 0 0 0 0 0 M END > BEGC2c3sQcmp4vgFpEkvOQ > 2025-07-07 07:57:31 > 0.9.12 > ligand > pdb-bcif > 3s55 > atom_site > {"label_asym_id":"X","auth_seq_id":280} > 34 > 12 > 31 > 272 > 0 > 1 $$$$