CA ModelServer 0.9.12 1 0 0 0 0 0 0 0 0 0 0 54.8550 2.7640 3.8120 CA 0 2 0 0 0 0 0 0 0 0 0 0 M END > rx2gMtYgc-o8QYK3E55Yiw > 2025-07-04 02:00:02 > 0.9.12 > ligand > pdb-bcif > 4ecv > atom_site > {"label_asym_id":"E","auth_seq_id":502} > 75 > 24 > 12 > 372 > 0 > 1 $$$$