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23 Nov 2019
a) Compare the root-mean-square end-to-end distance (the restlength) of spectrin (an actin cross-linking protein), actin andmicrotubules 1000 nm in contour length. Use l = 15, 15 x 103 and 2x 106 nm for spectrin, actin and microtubules, respectively.Temperature is 300 K.
b) What is the effective spring constant of each protein?
c) What is the range of extensions past the rest length you wouldexpect this spring constant to remain linear?
a) Compare the root-mean-square end-to-end distance (the restlength) of spectrin (an actin cross-linking protein), actin andmicrotubules 1000 nm in contour length. Use l = 15, 15 x 103 and 2x 106 nm for spectrin, actin and microtubules, respectively.Temperature is 300 K.
b) What is the effective spring constant of each protein?
c) What is the range of extensions past the rest length you wouldexpect this spring constant to remain linear?
