463 results found
    1. Chromosomes and Gene Expression

    Single molecule analysis of CENP-A chromatin by high-speed atomic force microscopy

    Daniël P Melters, Keir C Neuman ... Yamini Dalal
    A novel analytical workflow to quantitatively track motions of thousands of nucleosomes within chromatin fibers by high-speed atomic force microscopy.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Cofilin-induced unidirectional cooperative conformational changes in actin filaments revealed by high-speed atomic force microscopy

    Kien Xuan Ngo, Noriyuki Kodera ... Taro QP Uyeda
    A cluster of cofilin along an otherwise bare actin filament induces distinctively asymmetric cooperative conformational changes to the filament on either side of the cluster.
    1. Microbiology and Infectious Disease

    Glycan-shielded homodimer structure and dynamical features of the canine distemper virus hemagglutinin relevant for viral entry and efficient vaccination

    Hideo Fukuhara, Kohei Yumoto ... Katsumi Maenaka
    X-ray crystallographic and atomic force microscopic analyses reveal the tilted homodimer structure and unanticipated dynamic characteristics of canine distemper virus-hemagglutinin (CDV-H), providing insights into the molecular and dynamic processes of Morbillivirus for cell entry, effective immunizations, and vaccine/drug design.
    1. Developmental Biology
    2. Physics of Living Systems

    Rapid changes in tissue mechanics regulate cell behaviour in the developing embryonic brain

    Amelia J Thompson, Eva K Pillai ... Kristian Franze
    During embryonic development, tissue stiffness, which provides an important signal to motile cells, changes locally within tens of minutes in a well-controlled manner.
    1. Cell Biology
    2. Developmental Biology

    Organ sculpting by patterned extracellular matrix stiffness

    Justin Crest, Alba Diz-Muñoz ... David Bilder
    Direct measurement of finely patterned mechanical properties in a native basement membrane demonstrate how force asymmetries arising from this extracellular matrix, rather than from cells, can precisely sculpt a tissue.
    1. Structural Biology and Molecular Biophysics

    Unfolding and identification of membrane proteins in situ

    Nicola Galvanetto, Zhongjie Ye ... Vincent Torre
    The isolation of the cell membrane of single cells coupled with AFM enables the study and identification of native membrane proteins in a membrane fragment.
    1. Structural Biology and Molecular Biophysics

    The Candida albicans virulence factor candidalysin polymerizes in solution to form membrane pores and damage epithelial cells

    Charles M Russell, Katherine G Schaefer ... Francisco N Barrera
    The molecular mechanism that candidalysin uses to perforate membranes is unraveled, which opens the door to the rational design of inhibitors against candidiasis.
    1. Physics of Living Systems

    Biophysical properties of single rotavirus particles account for the functions of protein shells in a multilayered virus

    Manuel Jiménez-Zaragoza, Marina PL Yubero ... Javier M Rodríguez
    In triple-layered rotavirus particles, strong interaction between the external and middle layers provides high mechanical strength for protection tasks, while weaker interaction between the middle and inner layers favors transcription.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Protein flexibility is required for vesicle tethering at the Golgi

    Pak-yan Patricia Cheung, Charles Limouse ... Suzanne R Pfeffer
    Atomic force microscopy reveals a floppy, dimeric, coiled coil Golgin structure that captures transport vesicles via splayed, N-terminal ends at the Golgi complex.
    1. Structural Biology and Molecular Biophysics

    Stepwise visualization of membrane pore formation by suilysin, a bacterial cholesterol-dependent cytolysin

    Carl Leung, Natalya V Dudkina ... Bart W Hoogenboom
    Electron and atomic force microscopy show how bacterial toxins bind to a host membrane and assemble into arcs and rings, before undergoing a dramatic, concerted conformational change to insert into the membrane.

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