User:Wayne Decatur/Gal 4: Difference between revisions
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The DNA binding domain uses four Cys residues to coordinate the binding of two ions of zinc (Zn(II)). In the crystal structure the zinc ions are represented by other members of the same group on the periodic table, the heavier cadmium ions. The Zn-binding motif lets the structure accomplish more with fewer amino acids, the metals lending an "economy of structure", arranging two helices to recognize a specific DNA site. | The DNA binding domain uses four Cys residues to coordinate the binding of two ions of zinc (Zn(II)). In the crystal structure [[1d66]], the zinc ions are represented by other members of the same group on the periodic table, the heavier cadmium ions. The Zn-binding motif lets the structure accomplish more with fewer amino acids, the metals lending an "economy of structure", arranging two helices to recognize a specific DNA site. | ||
==Reference== | ==Reference== | ||
<ref group="xtra">PMID:1557122</ref><references group="xtra"/> | <ref group="xtra">PMID:1557122</ref><references group="xtra"/> | ||
