ZN ModelServer 0.9.12 1 0 0 0 0 0 0 0 0 0 0 18.5440 -13.3510 -3.5480 ZN 0 2 0 0 0 0 0 0 0 0 0 0 M END > 7JDlPrXTg3CAyFH3kxRAGg > 2025-07-10 15:04:06 > 0.9.12 > ligand > pdb-bcif > 4k1r > atom_site > {"label_asym_id":"G","auth_seq_id":503} > 9 > 12 > 8 > 239 > 0 > 1 $$$$