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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

1q4n

Structural studies of phe256trp of human salivary alpha-amylase: implications for the role of a conserved water molecule and its associated chain in enzyme activity