We note that pulling speed is in fact not the most relevant parameter in simulations and experiments but rather the loading rate (the time derivative of the force). This is approximately given bydF/dt≈k·v, wherekis the spring constant of the entire system (external springs and the protein...
Right-hand versus left-hand winding:Springs are chiral, that is, wound or "laid" in either a left- or right-hand orientation. This is a critical property of their design and specification; you cannot substitute a left for a right or vice versa. If you were to grasp the spring in your...
[55] MT were used to probe the mechanical At forces up to 4 pN, the 30-nm fiber stretches like a properties of 167 and 197 bp repeat length Hookian spring, resulting in a three-fold extension. arrays of 25 nucleosomes (Figure 2c). Together with a high nucleosome-nucleosome ...