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DNA Topology

  1. Jul 9, 2016 #1
    1. The problem statement, all variables and given/known data
    Suppose that a turn of B-DNA in a circular DNA molecule with L = 100 and W = -4 becomes a turn of Z-DNA .

    a) What are the L, T, and W following the transition?

    2. Relevant equations
    L=T+W
    L=#bp/#bp/turn
    B-dna= 10.4bp/turn
    Z-dna=12bp/turn

    3. The attempt at a solution
    Tb=Lb-Wb=1004
    #bp=Lb*10.4=10400bp
    Lz=10400/12=867

    Does the writhing number stay the same between both B and Z DNA? How do I find Tz and Wz?
     
  2. jcsd
  3. Jul 14, 2016 #2
    Thanks for the post! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
     
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