Multiple Assemblies exist for SMTL entry 2ptc
THE GEOMETRY OF THE REACTIVE SITE AND OF THE PEPTIDE GROUPS IN TRYPSIN, TRYPSINOGEN AND ITS COMPLEXES WITH INHIBITORS; X-RAY DIFFRACTION 1.90 Å

	SMTL ID 2ptc.1 Ligands CALCIUM ION Polypeptides BETA-TRYPSIN; TRYPSIN INHIBITOR Oligo-state hetero-1-1-mer
	SMTL ID 2ptc.2 Ligands CALCIUM ION Polypeptides BETA-TRYPSIN; TRYPSIN INHIBITOR Oligo-state hetero-4-4-mer