Which of the Following DNA-Binding Motifs Uses β Sheets to Recognize

Question

Which of the following DNA-binding motifs uses β sheets to recognize DNA bases?
A) The helix-turn-helix motif
B) The leucine zipper
C) The zinc finger motif
D) The helix-loop-helix motif
E) None of the above

Accepted Answer

All of the examples presented in A to D use α helices to interact with DNA. A limited number of DNA-binding motifs use β sheets to recognize DNA bases.