MHT CET202415 May 2024Morning ShiftChemistryBiomoleculesActual
What is the number of amino acids present in single turn of -helix of protein?
Options
- A1.3
- B3.1
- C3.6
- D6.3
Correct answer
C. 3.6
Step-by-step solution
The -helix can be described as a 3.6₁₃ helix, since the i+4 spacing adds three more atoms to the H -bonded loop compared to the tighter 3₁₀ helix, and on average, 3.6 amino acids are involved in one ring of -helix.