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Volume 42 Issue 3
May  2012
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Article Navigation >  Advances in Mechanics  > 2012  >  42(3): 332-346
XIE Junyu, DING Guanghong. MECHANOSENSITIVE CHANNELS: INSIGHTS FROM MOLECULAR MODELING AND SIMULATIONS[J]. Advances in Mechanics, 2012, 42(3): 332-346. doi: 10.6052/1000-0992-11-129
Citation: XIE Junyu, DING Guanghong. MECHANOSENSITIVE CHANNELS: INSIGHTS FROM MOLECULAR MODELING AND SIMULATIONS[J]. Advances in Mechanics, 2012, 42(3): 332-346. doi: 10.6052/1000-0992-11-129
shu

MECHANOSENSITIVE CHANNELS: INSIGHTS FROM MOLECULAR MODELING AND SIMULATIONS

doi: 10.6052/1000-0992-11-129
  • 1.

    Department of Mechanics Engineering and Science, Fudan University, Shanghai 200433, China


  • 2. Shanghai Research Center of Acupuncture and Meridians, Shanghai 201203, China

Funds:  The project was supported by the National Basic Research Program of China (2012CB518502), the National Natural Science Foundation of China (81102630), the Shanghai Leading Academic Discipline Project (S30304, B112), the Science Foundation of Shanghai Municipal Commission of Science and Technology (09DZ1976600, 09dZ1974303, 10DZ1975800) and the Fudan Science Foundation for Young (09FQ07).
More Information
  • Corresponding author: DING Guanghong
  • Received Date: 2010-09-14
  • Rev Recd Date: 2012-01-10
  • Publish Date: 2012-05-25
    Abstract
  • Mechanosensitive channels play an important role in various physiological processes. The research on Mechanosensitive channels has been conducted more than two decades by now. In the experimental aspect, the determination of crystal structures of mechanosensitive channels of large and small conductance makes it possible to develop molecular modeling and simulation investigations on MS channels, which gives us a significantly deeper insight into mechanism of mechanosensitive channels. During theoretical studies on ion channels, different simulation methods and calculation skills display their superiorities as well as specific performances, which offer us different viewpoints to analyze membrane channels; however, they also have their own limitations. Particularly, among many ion channel analysis technologies, molecular dynamic simulation plays an outstanding role. The emergence of molecular dynamic simulation presents a more comprehensive and detailed description of the structural and functional relationship and dynamic mechanism of MS channels, which we can not achieve via many other technologies. On the other hand, molecular dynamic simulation consists of several methods, and different methods offer us different paths to study MS channels. That’s why in this review, we focus on the computational aspect of mechanosensitive channels analysis, with particular emphasis laid on molecular dynamic simulations. In the context of molecular dynamic simulation, we discuss the dynamic mechanism of MS channels, including structure, lipid environment, mechanical stimulation, voltage dependence and gating configuration. Meanwhile comparisons of the advantages and disadvantages of different simulation technologies will provide us better tools of research in the future. Finally, we also sum up the domestic breakthrough and great achievements in ion channels research, and all of these will definitely provide us new thoughts and inspirations to study MS channels.

     

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