Multiple Assemblies exist for SMTL entry 1yry
Crystal structure of human PNP complexed with MESG; X-RAY DIFFRACTION 2.80 Å

	SMTL ID 1yry.1 Ligands SULFATE ION; 7-METHYL-6-THIO-GUANOSINE Polypeptides Purine nucleoside phosphorylase Oligo-state monomer
	SMTL ID 1yry.2 Ligands SULFATE ION; 7-METHYL-6-THIO-GUANOSINE Polypeptides Purine nucleoside phosphorylase Oligo-state homo-trimer