Direction: The width of the lipid bilayer membrane is 30 Å. It is permeated by a protein which is a right handed
α-helix.
-
The number of h-helical turns permeating the membrane is
-
- 5.6 turns
- 3.5 turns
- 6.5 turns
- 5.0 turns
Correct Option: A
Given,
Width of lipid bilayer membrane= 30 Å
We know, each turn of right handed α-helix has a pitch of = 5.1 Å
Thus, total turns = 30 / 5.1 = 5.6 turns.
