UNX ModelServer 0.9.12 1 0 0 0 0 0 0 0 0 0 0 4.8630 16.6470 23.7960 X 0 0 0 0 0 0 0 0 0 0 0 0 M END > BFbD987jByE8MSn1HZ8i8w > 2025-07-04 23:02:45 > 0.9.12 > ligand > pdb-bcif > 4pxw > atom_site > {"label_asym_id":"UA","auth_seq_id":1523} > 44 > 18 > 29 > 1127 > 0 > 1 $$$$