• A polymerization–depolymerization model for generation of contractile force during bacterial cell division

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      https://www.ias.ac.in/article/fulltext/pram/071/02/0307-0311

    • Keywords

       

      Polymerization; intrinsic curvature; hydrolysis.

    • Abstract

       

      During the last phase of cell division in bacteria, a polymeric ring forms at the division site. The ring, made of intracellular proteins, anchors to the cell wall and starts to contract. That initiates a dividing septum to close in, like the shutter of a camera, eventually guillotining the cell into two daughters. All through, the ring remains at the leading edge of the septum and seems to power its closure. It is not understood why does the ring contract. We propose a theoretical model to explain this. It is worth mentioning that a similar contraction phenomenon occurs for the actin ring in eukaryotes, but there it is due to motor proteins, which however, are absent in bacteria.

    • Author Affiliations

       

      Biplab Ghosh1 Anirban Sain1

      1. Physics Department, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
    • Dates

       
  • Pramana – Journal of Physics | News

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