Multiple Assemblies exist for SMTL entry 2ra3
Human cationic trypsin complexed with bovine pancreatic trypsin inhibitor (BPTI); X-RAY DIFFRACTION 1.46 Å

	SMTL ID 2ra3.1 Ligands CALCIUM ION; SULFATE ION Polypeptides Trypsin-1; Pancreatic trypsin inhibitor Oligo-state hetero-2-2-mer
	SMTL ID 2ra3.2 Ligands CALCIUM ION; SULFATE ION Polypeptides Trypsin-1; Pancreatic trypsin inhibitor Oligo-state hetero-4-4-mer