Multiple Assemblies exist for SMTL entry 1usn
CRYSTAL STRUCTURE OF THE CATALYTIC DOMAIN OF HUMAN FIBROBLAST STROMELYSIN-1 INHIBITED WITH THIADIAZOLE INHIBITOR PNU-142372; X-RAY DIFFRACTION 1.80 Å

	SMTL ID 1usn.1 Ligands ZINC ION; CALCIUM ION; 2-[3-(5-MERCAPTO-[1,3,4]THIADIAZOL-2YL)-UREIDO]-N-METHYL-3-PENTAFLUOROPHENYL-PROPIONAMIDE Polypeptides STROMELYSIN-1 Oligo-state monomer
	SMTL ID 1usn.2 Ligands ZINC ION; CALCIUM ION; 2-[3-(5-MERCAPTO-[1,3,4]THIADIAZOL-2YL)-UREIDO]-N-METHYL-3-PENTAFLUOROPHENYL-PROPIONAMIDE Polypeptides STROMELYSIN-1 Oligo-state homo-trimer
	SMTL ID 1usn.3 Ligands ZINC ION; CALCIUM ION; 2-[3-(5-MERCAPTO-[1,3,4]THIADIAZOL-2YL)-UREIDO]-N-METHYL-3-PENTAFLUOROPHENYL-PROPIONAMIDE Polypeptides STROMELYSIN-1 Oligo-state homo-dimer