Multiple Assemblies exist for SMTL entry 6xu1
Crystal structure of tetrameric human H215A-SAMHD1 (residues 109-626) with GTP, dAMPNPP and Mg; X-RAY DIFFRACTION 2.20 Å

	SMTL ID 6xu1.1 Ligands FE (III) ION; MAGNESIUM ION; 2'-deoxy-5'-O-[(R)-hydroxy{[(R)-hydroxy(phosphonooxy)phosphoryl]amino}phosphoryl]adenosine; GUANOSINE-5'-TRIPHOSPHATE Polypeptides Deoxynucleoside triphosphate triphosphohydrolase SAMHD1 Oligo-state homo-tetramer
	SMTL ID 6xu1.2 Ligands FE (III) ION; MAGNESIUM ION; 2'-deoxy-5'-O-[(R)-hydroxy{[(R)-hydroxy(phosphonooxy)phosphoryl]amino}phosphoryl]adenosine; GUANOSINE-5'-TRIPHOSPHATE Polypeptides Deoxynucleoside triphosphate triphosphohydrolase SAMHD1 Oligo-state homo-tetramer