Which of the Following Motifs is Not Characteristic of a Eukaryotic

Question

Which of the following motifs is not characteristic of a eukaryotic transcription factor?
A) Transmembrane domain
B) Helix-turn-helix
C) Leucine zippers
D) Helix-loop-helix
E) All of these are correct.

Accepted Answer

Transmembrane domains are not typically found in transcription factors, as they are usually located in the cytoplasm or nucleus of the cell where they bind to DNA to regulate gene expression. Helix-turn-helix, leucine zippers, and helix-loop-helix motifs are all commonly found in eukaryotic transcription factors.