Multiple Assemblies exist for SMTL entry 4u9g
Crystal structure of an H-NOX protein from S. oneidensis in the Fe(II)CO ligation state, Q154A/Q155A/K156A mutant; X-RAY DIFFRACTION 2.25 Å

	SMTL ID 4u9g.1 Ligands PROTOPORPHYRIN IX CONTAINING FE; ZINC ION; CARBON MONOXIDE; SODIUM ION Polypeptides NO-binding heme-dependent sensor protein Oligo-state monomer
	SMTL ID 4u9g.2 Ligands PROTOPORPHYRIN IX CONTAINING FE; ZINC ION Polypeptides NO-binding heme-dependent sensor protein Oligo-state monomer