Multiple Assemblies exist for SMTL entry 1fu2
FIRST PROTEIN STRUCTURE DETERMINED FROM X-RAY POWDER DIFFRACTION DATA; POWDER DIFFRACTION

	SMTL ID 1fu2.1 Ligands ZINC ION; CHLORIDE ION; SODIUM ION Polypeptides INSULIN, A CHAIN; INSULIN, B CHAIN Oligo-state hetero-4-4-mer
	SMTL ID 1fu2.2 Ligands ZINC ION; CHLORIDE ION; SODIUM ION Polypeptides INSULIN, A CHAIN; INSULIN, B CHAIN Oligo-state hetero-6-6-mer
	SMTL ID 1fu2.3 Ligands ZINC ION; CHLORIDE ION; SODIUM ION Polypeptides INSULIN, A CHAIN; INSULIN, B CHAIN Oligo-state hetero-6-6-mer
	SMTL ID 1fu2.4 Ligands ZINC ION; CHLORIDE ION Polypeptides INSULIN, A CHAIN; INSULIN, B CHAIN Oligo-state hetero-6-6-mer