Which of the following can be found in DNA-binding domains?

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All of the choices can be found in DNA-binding domains. Zinc fingers are protein domains that coordinate a zinc ion to stabilize protein-DNA interactions. Glutamine-rich regions are found in transcription factors that interact with chromatin modifying enzymes. bZIP motifs contain basic and leucine residues and form a coiled-coil structure that enables binding to specific DNA sequences. bHLH motifs contain basic residues and a helix-loop-helix structure that enables binding to DNA.

Which of the Following Can Be Found in DNA-Binding Domains