981 results found
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Myosin III-mediated cross-linking and stimulation of actin bundling activity of Espin

    Haiyang Liu et al.
    The tail domain of Myosin III binds to and cross-links actin bundling protein Espin1 and thus modulates higher order actin bundle structures in cellular processes such as stereocilia and microvilli.
    1. Structural Biology and Molecular Biophysics

    Myosin motors fragment and compact membrane-bound actin filaments

    Sven K Vogel et al.
    A combination of single-molecule imaging and an in vitro model of the cell cortex has allowed the interactions between actin filaments and filaments made of myosin II to be studied in detail.
    1. Structural Biology and Molecular Biophysics

    Mechanistic insights into the active site and allosteric communication pathways in human nonmuscle myosin-2C

    Krishna Chinthalapudi et al.
    R788 is part of an allosteric communication pathway that connects the converter at the distal end of the myosin motor domain via the relay helix with switch-2 of the active site.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Coordinated recruitment of Spir actin nucleators and myosin V motors to Rab11 vesicle membranes

    Olena Pylypenko et al.
    Components of a Spir:MyoV:Rab11 complex are recruited synergistically to coordinate actin tracks generation and myosin motor activity in vesicle transport processes.
    1. Cell Biology

    Type-I myosins promote actin polymerization to drive membrane bending in endocytosis

    Hetty E Manenschijn et al.
    Monomeric myosins can stimulate growth of actin filaments under load.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structures reveal specialization at the myosin VI-actin interface and a mechanism of force sensitivity

    Pinar S Gurel et al.
    Cryo-EM structures of actomyosin VI in multiple nucleotide states reveal a unique actin-myosin interface and a mechanism of force-sensitivity; furthermore, myosin VI remodels F-actin, suggesting a role for actin structural plasticity during force generation.
    1. Cell Biology
    2. Plant Biology

    Myosin VIII associates with microtubule ends and together with actin plays a role in guiding plant cell division

    Shu-Zon Wu, Magdalena Bezanilla
    Class VIII myosins mediate crosstalk between actin and microtubules to position cell division in plants.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Contractile acto-myosin network on nuclear envelope remnants positions human chromosomes for mitosis

    Alexander JR Booth et al.
    Live-cell imaging shows that the contractile acto-myosin network on the nuclear envelope remnant positions chromosomes in early mitosis to ensure efficient and correct interactions between chromosomes and the mitotic spindle.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Tuning myosin-driven sorting on cellular actin networks

    Rizal F Hariadi et al.
    Competition between the antagonistic motor proteins myosin V and myosin VI finely tunes unidirectional transport of cargo on different actin architectures.
    1. Biochemistry and Chemical Biology

    Control of lipid domain organization by a biomimetic contractile actomyosin cortex

    Sven Kenjiro Vogel et al.
    Building on previous work (Vogel et al., 2013b), it is shown that myosin-driven actin filament rearrangements actively move, split or fuse individual lipid domains and change their overall shape.

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