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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