Maximum frequency of flagellar motor

Value 300 sec^-1
Organism Bacteria Escherichia coli
Reference Berg HC, Turner L. Torque generated by the flagellar motor of Escherichia coli. Biophys J. 1993 Nov65(5):2201-16 p.2210 left column bottom paragraph heading '(g)' and tables 1,2 & 3 row above bottom rowPubMed ID8298044
Method "Cells of the bacterium Escherichia coli were tethered and spun in a high-frequency rotating electric field at a series of discrete field strengths. This was done first at low field strengths, then at field strengths generating speeds high enough to disrupt motor function, and finally at low field strengths."
Comments "(g) Broken cells spin at about 300Hz when driven in a medium of conductivity 0.41mS/cm at a field strength of about 16,000V/cm."
Entered by Uri M
ID 103813