Which of the following DNA regulatory protein "motifs" consists of one alpha-helix and one beta-sheet, linked by a zinc ion, and usually acting as a polymer of several monomers in the regulation of DNA? The homeodomain The leucine zipper The zinc finger All of the above None of the above
Added by Christopher T.
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The homeo-domain is a protein domain that binds to DNA and is found in many transcription factors. It consists of a helix-turn-helix motif, not a combination of an alpha-helix and a beta-sheet. Show more…
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