Multiple Assemblies exist for SMTL entry 5k1i
PDE4 crystal structure in complex with small molecule inhibitor; X-RAY DIFFRACTION 2.61 Å

	SMTL ID 5k1i.1 Ligands 4-[(5-acetyl-2-ethyl-3-oxo-6-phenyl-2,3-dihydropyridazin-4-yl)amino]benzoic acid; ZINC ION; MAGNESIUM ION Polypeptides cAMP-specific 3',5'-cyclic phosphodiesterase 4D Oligo-state monomer
	SMTL ID 5k1i.2 Ligands 4-[(5-acetyl-2-ethyl-3-oxo-6-phenyl-2,3-dihydropyridazin-4-yl)amino]benzoic acid; ZINC ION; MAGNESIUM ION Polypeptides cAMP-specific 3',5'-cyclic phosphodiesterase 4D Oligo-state monomer
	SMTL ID 5k1i.3 Ligands 4-[(5-acetyl-2-ethyl-3-oxo-6-phenyl-2,3-dihydropyridazin-4-yl)amino]benzoic acid; ZINC ION; MAGNESIUM ION Polypeptides cAMP-specific 3',5'-cyclic phosphodiesterase 4D Oligo-state monomer
	SMTL ID 5k1i.4 Ligands 4-[(5-acetyl-2-ethyl-3-oxo-6-phenyl-2,3-dihydropyridazin-4-yl)amino]benzoic acid; ZINC ION; MAGNESIUM ION Polypeptides cAMP-specific 3',5'-cyclic phosphodiesterase 4D Oligo-state monomer
	SMTL ID 5k1i.5 Ligands 4-[(5-acetyl-2-ethyl-3-oxo-6-phenyl-2,3-dihydropyridazin-4-yl)amino]benzoic acid; ZINC ION; MAGNESIUM ION Polypeptides cAMP-specific 3',5'-cyclic phosphodiesterase 4D Oligo-state monomer
	SMTL ID 5k1i.6 Ligands 4-[(5-acetyl-2-ethyl-3-oxo-6-phenyl-2,3-dihydropyridazin-4-yl)amino]benzoic acid; ZINC ION; MAGNESIUM ION Polypeptides cAMP-specific 3',5'-cyclic phosphodiesterase 4D Oligo-state monomer
	SMTL ID 5k1i.7 Ligands 4-[(5-acetyl-2-ethyl-3-oxo-6-phenyl-2,3-dihydropyridazin-4-yl)amino]benzoic acid; ZINC ION; MAGNESIUM ION Polypeptides cAMP-specific 3',5'-cyclic phosphodiesterase 4D Oligo-state monomer
	SMTL ID 5k1i.8 Ligands 4-[(5-acetyl-2-ethyl-3-oxo-6-phenyl-2,3-dihydropyridazin-4-yl)amino]benzoic acid; ZINC ION; MAGNESIUM ION Polypeptides cAMP-specific 3',5'-cyclic phosphodiesterase 4D Oligo-state monomer