CA ModelServer 0.9.12 1 0 0 0 0 0 0 0 0 0 0 -3.3770 -52.8870 20.4040 CA 0 2 0 0 0 0 0 0 0 0 0 0 M END > 48xFCLLWZkjZHEDyCl5fJA > 2025-07-04 05:11:09 > 0.9.12 > ligand > pdb-bcif > 4k4h > atom_site > {"label_asym_id":"SA","auth_seq_id":606} > 13 > 19 > 31 > 324 > 2 > 1 $$$$