Multiple Assemblies exist for SMTL entry 3btf
THE CRYSTAL STRUCTURES OF THE COMPLEXES BETWEEN BOVINE BETA-TRYPSIN AND TEN P1 VARIANTS OF BPTI.; X-RAY DIFFRACTION 1.80 Å

	SMTL ID 3btf.1 Ligands CALCIUM ION; SULFATE ION Polypeptides PROTEIN (TRYPSIN); PROTEIN (PANCREATIC TRYPSIN INHIBITOR) Oligo-state hetero-1-1-mer
	SMTL ID 3btf.2 Ligands CALCIUM ION; SULFATE ION Polypeptides PROTEIN (TRYPSIN); PROTEIN (PANCREATIC TRYPSIN INHIBITOR) Oligo-state hetero-4-4-mer
	SMTL ID 3btf.3 Ligands CALCIUM ION; SULFATE ION Polypeptides PROTEIN (TRYPSIN); PROTEIN (PANCREATIC TRYPSIN INHIBITOR) Oligo-state hetero-2-2-mer