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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

3dfr

Crystal structures of escherichia coli and lactobacillus casei dihydrofolate reductase refined at 1.7 angstroms resolution. i. general features and binding of methotrexate