What structural motif is used by sigma factor to bind to DNA?
A) zinc-finger
B) helix-turn-helix
C) leucine zipper
D) homeodomain

Name: What structural motif is used by sigma factor to bind to DNA? A) zinc-finger B) helix-turn-helix C) leucine zipper D) homeodomain
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Question

Quizplus · Accepted Answer

Sigma factor binds to DNA using the helix-turn-helix (HTH) motif, which consists of two helices connected by a turn. This motif allows one helix to bind to the DNA groove, while the other makes specific contacts with the DNA base pairs.

What Structural Motif Is Used by Sigma Factor to Bind