Persistence length of actin

Range ~10 to 17 μm
Organism Unspecified
Reference D.N. Robinson, Y.-S. Kee, T. Luo and A. Surcel, Understanding How Dividing Cells Change Shape. In: Edward H. Egelman, editor: Comprehensive Biophysics, Vol 7, Cell Biophysics, Denis Wirtz. Oxford: Academic Press, 2012. pp. 48-72. p.54 right column bottom paragraph
Primary Source Isambert, H. Venier, P. Maggs, A. C. Fattoum, A. Kassab, R. Pantaloni, D. Carlier, M. F. Flexibility of actin filaments derived from thermal fluctuations. Effect of bound nucleotide, phalloidin, and muscle regulatory proteins. J. Biol. Chem. 1995, 270, 11437–11444.PubMed ID7744781
Method (Primary source abstract:) "Single actin filaments undergoing brownian movement in two dimensions were observed at 20 degrees C in fluorescence optical video microscopy."
Comments "The persistence length (Lp) of a semiflexible polymer can be thought of as the minimum length between two points on the polymer where the two points become independent of one another. For actin, the Lp is ~10–17µm (primary source)."
Entered by Uri M
ID 109568