Multiple Assemblies exist for SMTL entry 1z4x
Parainfluenza Virus 5 (SV5) Hemagglutinin-Neuraminidase (HN) with ligand Sialyllactose (soaked with Sialyllactose, pH8.0); X-RAY DIFFRACTION 2.50 Å

	SMTL ID 1z4x.1 Ligands 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose; N-acetyl-alpha-neuraminic acid-(2-3)-beta-D-galactopyranose-(1-4)-alpha-D-glucopyranose; 2-acetamido-2-deoxy-beta-D-glucopyranose; CALCIUM ION Polypeptides Hemagglutinin-neuraminidase Oligo-state homo-tetramer
	SMTL ID 1z4x.2 Ligands 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose; N-acetyl-alpha-neuraminic acid-(2-3)-beta-D-galactopyranose-(1-4)-alpha-D-glucopyranose; 2-acetamido-2-deoxy-beta-D-glucopyranose; CALCIUM ION Polypeptides Hemagglutinin-neuraminidase Oligo-state homo-dimer