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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

1hd7

A second divalent metal ion in the active site of a new crystal form of human apurinic/apyridinimic endonuclease, ape1, and its implications for the catalytic mechanism