4. Protein Structure
Alpha Helix Pitch and Rise
Multiple Choice
Multiple ChoiceSuppose a cell membrane is 45 Å thick & an embedded protein has 7 parallel transmembrane α-helical segments. Calculate the minimum # of aa-residues required for all 7 α-helical segments to traverse the membrane.
A
125 residues.
B
39 residues.
C
71 residues.
D
210 residues.
118
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