Multiple Assemblies exist for SMTL entry 3r1b
Open crystal structure of cytochrome P450 2B4 covalently bound to the mechanism-based inactivator tert-butylphenylacetylene; X-RAY DIFFRACTION 3.00 Å

	SMTL ID 3r1b.1 Ligands beta-D-fructofuranose-(2-1)-alpha-D-glucopyranose; PROTOPORPHYRIN IX CONTAINING FE; (4-tert-butylphenyl)acetaldehyde; 5-CYCLOHEXYL-1-PENTYL-BETA-D-MALTOSIDE Polypeptides Cytochrome P450 2B4 Oligo-state monomer
	SMTL ID 3r1b.2 Ligands beta-D-fructofuranose-(2-1)-alpha-D-glucopyranose; PROTOPORPHYRIN IX CONTAINING FE; (4-tert-butylphenyl)acetaldehyde; 5-CYCLOHEXYL-1-PENTYL-BETA-D-MALTOSIDE Polypeptides Cytochrome P450 2B4 Oligo-state monomer
	SMTL ID 3r1b.3 Ligands beta-D-fructofuranose-(2-1)-alpha-D-glucopyranose; PROTOPORPHYRIN IX CONTAINING FE; (4-tert-butylphenyl)acetaldehyde Polypeptides Cytochrome P450 2B4 Oligo-state monomer
	SMTL ID 3r1b.4 Ligands beta-D-fructofuranose-(2-1)-alpha-D-glucopyranose; PROTOPORPHYRIN IX CONTAINING FE; (4-tert-butylphenyl)acetaldehyde; 5-CYCLOHEXYL-1-PENTYL-BETA-D-MALTOSIDE Polypeptides Cytochrome P450 2B4 Oligo-state monomer
	SMTL ID 3r1b.5 Ligands beta-D-fructofuranose-(2-1)-alpha-D-glucopyranose; PROTOPORPHYRIN IX CONTAINING FE; (4-tert-butylphenyl)acetaldehyde; 5-CYCLOHEXYL-1-PENTYL-BETA-D-MALTOSIDE Polypeptides Cytochrome P450 2B4 Oligo-state homo-dimer
	SMTL ID 3r1b.6 Ligands beta-D-fructofuranose-(2-1)-alpha-D-glucopyranose; PROTOPORPHYRIN IX CONTAINING FE; (4-tert-butylphenyl)acetaldehyde; 5-CYCLOHEXYL-1-PENTYL-BETA-D-MALTOSIDE Polypeptides Cytochrome P450 2B4 Oligo-state homo-dimer