3,161 results found
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Architecture of the ring formed by the tubulin homologue FtsZ in bacterial cell division

    Piotr Szwedziak, Qing Wang ... Jan Löwe
    The architecture of the bacterial cytokinetic ring in cells and in artificial liposome reconstitutions has been described using electron microscopy, leading to a mechanism of constriction.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Lateral interactions between protofilaments of the bacterial tubulin homolog FtsZ are essential for cell division

    Fenghui Guan, Jiayu Yu ... Sheng Ye
    Structural and functional approaches unambiguously revealed physiologically relevant lateral interactions between FtsZ protofilaments.
    1. Microbiology and Infectious Disease

    A unique cell division protein critical for the assembly of the bacterial divisome

    Xiao Chu, Lidong Wang ... Zhaoqing Luo
    Identifying gain-of-function division variants that suppress the elongated cell division defect phenotype caused by Aeg1 depletion.
    1. Cell Biology

    Reconstitution of self-organizing protein gradients as spatial cues in cell-free systems

    Katja Zieske, Petra Schwille
    A minimal cell-like system with defined geometry has been used to investigate the establishment and spatial control of a protein gradient that positions the bacterial cell division machinery.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    General principles for the formation and proliferation of a wall-free (L-form) state in bacteria

    Romain Mercier, Yoshikazu Kawai, Jeff Errington
    A wide range of bacterial species can switch into a cell wall-free state that does not require the FtsZ-based division machinery to proliferate.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    PomX, a ParA/MinD ATPase activating protein, is a triple regulator of cell division in Myxococcus xanthus

    Dominik Schumacher, Andrea Harms ... Lotte Søgaard-Andersen
    In the PomX/Y/Z cell division regulatory system, PomX is a PomZ ATPase activating protein, a scaffold for PomX/Y/Z complex formation, and important for fission of the PomX/Y/Z complex during division.
    1. Computational and Systems Biology
    2. Microbiology and Infectious Disease

    Initiation of chromosome replication controls both division and replication cycles in E. coli through a double-adder mechanism

    Guillaume Witz, Erik van Nimwegen, Thomas Julou
    Single-cell measurements combined with a new statistical framework for discriminating between models of cell cycle regulation show that chromosome initiation controls the E. coli cell cycle via two adder mechanisms.
    1. Microbiology and Infectious Disease

    Coordination of peptidoglycan synthesis and outer membrane constriction during Escherichia coli cell division

    Andrew N Gray, Alexander JF Egan ... Waldemar Vollmer
    The protein CpoB regulates PBP1B activity in response to the Tol energy state, which facilitates feedback and synchronicity between envelope constriction processes during Gram-negative bacterial cell division.
    1. Physics of Living Systems

    Surface-to-volume scaling and aspect ratio preservation in rod-shaped bacteria

    Nikola Ojkic, Diana Serbanescu, Shiladitya Banerjee
    Rod-shaped bacteria preserve their aspect ratios and surface-to-volume scaling by maintaining a homeostatic balance between the rates of cell elongation and division protein synthesis.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Point of View: Is cell size a spandrel?

    Ariel Amir
    Analysis of experiments on bacteria suggests that the dependence of cell size on growth rate is not an adaptation but a causal consequence of a regulatory mechanism that controls DNA replication.

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