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FASTA Sequence PDB Format mmCIF Format
FASTA Sequence PDB Format PDB Format(gz) PDBx/mmCIF Format PDBx/mmCIF Format(gz) PDBML/XML Format Validation Full PDF Validation CIF

1pca

Three dimensional structure of porcine pancreatic procarboxypeptidase a. a comparison of the a and b zymogens and their determinants for inhibition and activation