Apparent diffusion coefficient of replisome movement

Range 500 to 700 nm^2/sec
Organism Fission yeast Schizosaccharomyces pombe
Reference Reyes-Lamothe R, Possoz C, Danilova O, Sherratt DJ. Independent positioning and action of Escherichia coli replisomes in live cells. Cell. 2008 Apr 4 133(1):90-102. doi: 10.1016/j.cell.2008.01.044. p.100 left column bottom paragraphPubMed ID18394992
Method "Fluorescent C-terminal fusion-protein derivatives of E. coli replisome components, expressed from their endogenous chromosomal promoters, were constructed and their phenotypes assessed by growth, flow cytometry, and microscopy."
Comments "...the observed rates of replisome movement (mean step sizes of 100 nm/3 s and a Dapp of (5–7?10^2) nm^2/s) are of the order one would predict for the replication of ~450?10 kb independent chromosomal domains since such domains would have a diameter of 100 nm and take 12 s to replicate."
Entered by Ron Milo - Admin
ID 109253