CA ModelServer 0.9.12 1 0 0 0 0 0 0 0 0 0 0 50.9410 10.3250 37.1340 CA 0 2 0 0 0 0 0 0 0 0 0 0 M END > xEeMpYvnE1bEITObDXEddg > 2025-07-12 16:13:49 > 0.9.12 > ligand > pdb-bcif > 1sra > atom_site > {"label_asym_id":"B","auth_seq_id":301} > 55 > 7 > 2 > 290 > 0 > 1 $$$$