Plateau torques of flagellar motor

Range V. alginolyticus ∼3800: E. coli ~1300: C. crescentus ∼350 pNхnm
Organism bacteria
Reference Inoue Y, Lo CJ, Fukuoka H, Takahashi H, Sowa Y, Pilizota T, Wadhams GH, Homma M, Berry RM, Ishijima A. Torque-speed relationships of Na+-driven chimeric flagellar motors in Escherichia coli. J Mol Biol. 2008 Mar 7 376(5):1251-9. doi: 10.1016/j.jmb.2007.12.023. p.1252 left column top paragraphPubMed ID18207160
Primary Source 3. Reid, S. W., Leake, M. C., Chandler, J. H., Lo, C. J., Armitage, J. P. & Berry, R. M. (2006). The maximum number of torque-generating units in the flagellar motor of Escherichia coli is at least 11. Proc. Natl Acad. Sci. USA, 103, 8066–8071. & 7. Li, G. & Tang, J. X. (2006). Low flagellar motor torque and high swimming efficiency of Caulobacter crescentus swarmer cells. Biophys. J. 91, 2726–2734.PubMed ID16698936, 16844761
Comments "A common feature of the torque–speed relationships of E. coli and V. alginolyticus is a sharp knee between a “plateau” of nearly constant torque at low speeds and a much steeper linear decrease of torque with speed at higher speeds...Plateau torques appear to vary widely between species, from ~3800 pN nm in V. alginolyticus, through ~1300 pN nm in E. coli (in the most recent estimate(primary source 3)), down to ~350 pN nm in Caulobacter crescentus.(primary source 7)"
Entered by Uri M
ID 109790