Multiple Assemblies exist for SMTL entry 1b20
DELETION OF A BURIED SALT-BRIDGE IN BARNASE; X-RAY DIFFRACTION 1.70 Å

	SMTL ID 1b20.1 Ligands ZINC ION Polypeptides PROTEIN (BARNASE) Oligo-state monomer
	SMTL ID 1b20.2 Ligands ZINC ION Polypeptides PROTEIN (BARNASE) Oligo-state monomer
	SMTL ID 1b20.3 Ligands ZINC ION Polypeptides PROTEIN (BARNASE) Oligo-state monomer