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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

4wls

Crystal structure of the metal-free (repressor) form of e. coli cuer, a copper efflux regulator, bound to copa promoter dna