Which of the following protein motifs can be involved in dimerization of transcription factors?

Question

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The leucine zipper motif is known to be involved in dimerization of transcription factors. This motif consists of a stretch of leucine residues that form an alpha helix, which can interact with another alpha helix from a partner protein to form a dimer. Choice A (Helix-turn-helix) is a motif commonly found in DNA-binding proteins, but it does not necessarily contribute to dimerization. Choice B (Asn-X-Ser/Thr) is a consensus glycosylation site and is not involved in dimerization. Choice D (Zinc fingers) are domains that can bind to specific DNA sequences, but they are not primarily involved in dimerization.

Which of the Following Protein Motifs Can Be Involved in Dimerization