Multiple Assemblies exist for SMTL entry 1xfx
Crystal structure of anthrax edema factor (EF) in complex with calmodulin in the presence of 10 millimolar exogenously added calcium chloride; X-RAY DIFFRACTION 3.20 Å

	SMTL ID 1xfx.1 Ligands MAGNESIUM ION; CALCIUM ION Polypeptides Calmodulin-sensitive adenylate cyclase; Calmodulin 2 Oligo-state hetero-1-1-mer
	SMTL ID 1xfx.2 Ligands MAGNESIUM ION; CALCIUM ION Polypeptides Calmodulin-sensitive adenylate cyclase; Calmodulin 2 Oligo-state hetero-1-1-mer
	SMTL ID 1xfx.3 Ligands MAGNESIUM ION; CALCIUM ION Polypeptides Calmodulin-sensitive adenylate cyclase; Calmodulin 2 Oligo-state hetero-1-1-mer
	SMTL ID 1xfx.4 Ligands MAGNESIUM ION; CALCIUM ION Polypeptides Calmodulin-sensitive adenylate cyclase; Calmodulin 2 Oligo-state hetero-1-1-mer
	SMTL ID 1xfx.5 Ligands MAGNESIUM ION; CALCIUM ION Polypeptides Calmodulin-sensitive adenylate cyclase; Calmodulin 2 Oligo-state hetero-1-1-mer
	SMTL ID 1xfx.6 Ligands MAGNESIUM ION; CALCIUM ION Polypeptides Calmodulin-sensitive adenylate cyclase; Calmodulin 2 Oligo-state hetero-1-1-mer