Role of a conserved prolyl residue (Pro173) of MotA in the mechanochemical reaction cycle of the proton-driven flagellar motor of Salmonella.

作者: Shuichi Nakamura , Yusuke V. Morimoto , Nobunori Kami-ike , Tohru Minamino , Keiichi Namba

DOI: 10.1016/J.JMB.2009.08.022

关键词: Stall torqueBiophysicsMutantB vitaminsSalmonella entericaMotilityCrystallographyStatorStructure–activity relationshipResidue (chemistry)Biology

摘要: … N p is estimated to be 800, based on the balance between input energy (number of protons × proton charge × PMF) and output work (2π × torque × rotation rate) at a PMF of − 110 mV, …

参考文章(36)
William S. Ryu, Richard M. Berry, Howard C. Berg, Torque-generating units of the flagellar motor of Escherichia coli have a high duty ratio Nature. ,vol. 403, pp. 444- 447 ,(2000) , 10.1038/35000233
Seiji Kojima, David F Blair, The bacterial flagellar motor: structure and function of a complex molecular machine. International Review of Cytology-a Survey of Cell Biology. ,vol. 233, pp. 93- 134 ,(2004) , 10.1016/S0074-7696(04)33003-2
Yong-Suk Che, Shuichi Nakamura, Seiji Kojima, Nobunori Kami-ike, Keiichi Namba, Tohru Minamino, Suppressor Analysis of the MotB(D33E) Mutation To Probe Bacterial Flagellar Motor Dynamics Coupled with Proton Translocation Journal of Bacteriology. ,vol. 190, pp. 6660- 6667 ,(2008) , 10.1128/JB.00503-08
J. Iwazawa, Y. Imae, S. Kobayasi, Study of the torque of the bacterial flagellar motor using a rotating electric field. Biophysical Journal. ,vol. 64, pp. 925- 933 ,(1993) , 10.1016/S0006-3495(93)81454-1
C. J. Brandl, C. M. Deber, Hypothesis about the function of membrane-buried proline residues in transport proteins. Proceedings of the National Academy of Sciences of the United States of America. ,vol. 83, pp. 917- 921 ,(1986) , 10.1073/PNAS.83.4.917
Edan R. Hosking, Christian Vogt, Evert P. Bakker, Michael D. Manson, The Escherichia coli MotAB Proton Channel Unplugged Journal of Molecular Biology. ,vol. 364, pp. 921- 937 ,(2006) , 10.1016/J.JMB.2006.09.035
Jiadong Zhou, David F. Blair, Residues of the cytoplasmic domain of MotA essential for torque generation in the bacterial flagellar motor Journal of Molecular Biology. ,vol. 273, pp. 428- 439 ,(1997) , 10.1006/JMBI.1997.1316
Ignacio E. Sánchez, Thomas Kiefhaber, Origin of Unusual φ-values in Protein Folding: Evidence Against Specific Nucleation Sites Journal of Molecular Biology. ,vol. 334, pp. 1077- 1085 ,(2003) , 10.1016/J.JMB.2003.10.016
Gero Miesenböck, Dino A. De Angelis, James E. Rothman, Visualizing secretion and synaptic transmission with pH-sensitive green fluorescent proteins Nature. ,vol. 394, pp. 192- 195 ,(1998) , 10.1038/28190
Xiaobing Chen, Howard C. Berg, Solvent-Isotope and pH Effects on Flagellar Rotation in Escherichia coli Biophysical Journal. ,vol. 78, pp. 2280- 2284 ,(2000) , 10.1016/S0006-3495(00)76774-9