FE ModelServer 0.9.9 1 0 0 0 0 0 0 0 0 0 0 28.5620 74.7100 21.7710 FE 0 1 0 0 0 0 0 0 0 0 0 0 M END > u6gZhaJ-VHqLXhLFEl45Mw > 2023-01-31 17:17:06 > 0.9.9 > ligand > pdb-bcif > 1k6n > atom_site > {"label_asym_id":"I","auth_seq_id":500} > 4 > 63 > 19 > 257 > 0 > 1 $$$$