Multiple Assemblies exist for SMTL entry 1fxu
PURINE NUCLEOSIDE PHOSPHORYLASE FROM CALF SPLEEN IN COMPLEX WITH N(7)-ACYCLOGUANOSINE INHIBITOR AND A PHOSPHATE ION; X-RAY DIFFRACTION 2.20 Å

	SMTL ID 1fxu.1 Ligands MAGNESIUM ION; ZINC ION; PHOSPHATE ION; 2-AMINO-7-[2-(2-HYDROXY-1-HYDROXYMETHYL-ETHYLAMINO)-ETHYL]-1,7-DIHYDRO-PURIN-6-ONE Polypeptides PURINE NUCLEOSIDE PHOSPHORYLASE Oligo-state monomer
	SMTL ID 1fxu.2 Ligands MAGNESIUM ION; ZINC ION; PHOSPHATE ION; 2-AMINO-7-[2-(2-HYDROXY-1-HYDROXYMETHYL-ETHYLAMINO)-ETHYL]-1,7-DIHYDRO-PURIN-6-ONE Polypeptides PURINE NUCLEOSIDE PHOSPHORYLASE Oligo-state homo-trimer
	SMTL ID 1fxu.3 Ligands MAGNESIUM ION; ZINC ION; PHOSPHATE ION; 2-AMINO-7-[2-(2-HYDROXY-1-HYDROXYMETHYL-ETHYLAMINO)-ETHYL]-1,7-DIHYDRO-PURIN-6-ONE Polypeptides PURINE NUCLEOSIDE PHOSPHORYLASE Oligo-state homo-trimer