The zipper model is a cooperative model for helix-coil transitions. here we demonstrate an important feature of this model, i. e. that once helix become energetically favored over coil, long runs of helix are favored over shorter runs.
for n=30, s=1.5 and ? =0.001 calculate the partition function q/q0 .
=1714
calculate the probability that a peptide for which n=30 has a helical length of k=20. assume s=1.5 and ? =0.001
calculate the probability that a peptide of length n=30 is entirely helical, i. e. k=30. assume again s=1.5 and ? =0.001
for n=30, s=1.5 and ? =0.001 calculate the most probable length of helical segment k*. hint: you can do this graphically by plotting probability versus k or analytically using calculus to find the value k* that maximizes the probability.
need with parts in bold