NH4 ModelServer 0.9.12 1 0 0 0 0 0 0 0 0 0 0 45.5890 98.9120 128.4930 N 0 3 0 0 0 0 0 0 0 0 0 0 M END > D7KHGdcVlo6ZQYgNC8K5ag > 2025-07-10 02:41:32 > 0.9.12 > ligand > pdb-bcif > 4buc > atom_site > {"label_asym_id":"HA","auth_seq_id":1501} > 20 > 15 > 35 > 347 > 0 > 1 $$$$