- #1
TytoAlba95
- 132
- 19
- Homework Statement
- The rise per residue of an alpaha helix is 1.5 Angstrom. A protein spans 4nm bilayer 7 times, through its transmenbrane alpha-helical domain.Aprroximately how many amino acid residues constitute the transmembrane domain of the protein
- Relevant Equations
- a) 105
b) 450
c) 30
d)190
Ans:d
Total no. of amino acid in each transmembrane domain = 4 nm/ 0.15 nm +1 =27.66
Total no. of amino acids in 7 transmembrane domains = 27.66 x 7 = 193.62 ≈ 190
Hence option d.
Is my approach correct?
Total no. of amino acids in 7 transmembrane domains = 27.66 x 7 = 193.62 ≈ 190
Hence option d.
Is my approach correct?