Friction of F-actin knots. Journal of the mechanical behavior of biomedical materials [J Mech Behav Biomed Mater] Journal article

We use the existing data of force-extension experiments on F-actin molecules tied into knots to compute a value of 0.15 for the static friction coefficient for contact between different parts of the same molecule with itself. This estimate for protein-protein friction is relevant for the stabilization of the 273 known proteins with knots, one percent of the structures deposited in the Protein Data Bank.

Journal of the mechanical behavior of biomedical materials [J Mech Behav Biomed Mater]