Multiple Assemblies exist for SMTL entry 1p9u
Coronavirus Main Proteinase (3CLpro) Structure: Basis for Design of anti-SARS Drugs; X-RAY DIFFRACTION 2.37 Å

	SMTL ID 1p9u.1 Ligands PHQ-VNSTLQ-CHLOROMETHYLKETONE INHIBITOR; SULFATE ION; (4R)-2-METHYLPENTANE-2,4-DIOL Polypeptides putative coronavirus nsp2 (3CL-PRO) Oligo-state homo-dimer
	SMTL ID 1p9u.2 Ligands SULFATE ION; (4R)-2-METHYLPENTANE-2,4-DIOL Polypeptides putative coronavirus nsp2 (3CL-PRO) Oligo-state homo-dimer
	SMTL ID 1p9u.3 Ligands PHQ-VNSTLQ-CHLOROMETHYLKETONE INHIBITOR; SULFATE ION; (4R)-2-METHYLPENTANE-2,4-DIOL Polypeptides putative coronavirus nsp2 (3CL-PRO) Oligo-state homo-dimer