54 results found
    1. Physics of Living Systems

    Increasing evidence of mechanical force as a functional regulator in smooth muscle myosin light chain kinase

    Fabian Baumann, Magnus Sebastian Bauer ... Hermann Eduard Gaub
    Atomic force microscopy based single-molecule force spectroscopy of smooth muscle myosin light chain kinase strongly indicates the existence of a mechanically triggerable activation pathway analogous to its well-established biochemical regulation pathway via calcium-loaded calmodulin.
    1. Cell Biology

    Myogenic vasoconstriction requires G12/G13 and LARG to maintain local and systemic vascular resistance

    Ramesh Chennupati, Angela Wirth ... Stefan Offermanns
    Genetic mouse models identify a critical mechanism of myogenic vasoconstriction and reveal the in vivo function of myogenic autoregulation in protecting from organ overperfusion and in maintaining vascular resistance.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Unfair competition governs the interaction of pCPI-17 with myosin phosphatase (PP1-MYPT1)

    Joshua J Filter, Byron C Williams ... Michael L Goldberg
    Unfair competition, in which a phosphatase and a phosphoprotein inhibitor/substrate mutually sequester each other from competing substrates and enzymes, is a conserved mechanism for the control of PPP family phosphatases.
    1. Developmental Biology
    2. Chromosomes and Gene Expression

    microRNA-1 regulates sarcomere formation and suppresses smooth muscle gene expression in the mammalian heart

    Amy Heidersbach, Chris Saxby ... Deepak Srivastava
    microRNA-1 plays an essential role in the development and functioning of the heart by ensuring that genes for striated, rather than smooth, muscle are expressed there.
    1. Cell Biology
    2. Medicine

    Pericyte-mediated constriction of renal capillaries evokes no-reflow and kidney injury following ischaemia

    Felipe Freitas, David Attwell
    Renal capillary pericytes are a novel therapeutic target for reducing sustained reduction in renal blood flow ('no-reflow') after kidney ischaemia.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Bipolar filaments of human nonmuscle myosin 2-A and 2-B have distinct motile and mechanical properties

    Luca Melli, Neil Billington ... James R Sellers
    Individual nonmuscle myosin 2 filaments in cells may differ their mechanical and kinetic properties depending on the myosin paralog composition giving the cells a mechanism for fine tuning the output of a given nonmuscle myosin filament.
    1. Cell Biology
    2. Developmental Biology

    Drosophila non-muscle myosin II motor activity determines the rate of tissue folding

    Claudia G Vasquez, Sarah M Heissler ... Adam C Martin
    The rate of cell and tissue contraction scales with the motor activity of myosin 2.
    1. Structural Biology and Molecular Biophysics

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

    Krishna Chinthalapudi, Sarah M Heissler ... Dietmar J Manstein
    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. Physics of Living Systems
    2. Structural Biology and Molecular Biophysics

    Conformational changes in twitchin kinase in vivo revealed by FRET imaging of freely moving C. elegans

    Daniel Porto, Yohei Matsunaga ... Hang Lu
    Quantitative FRET imaging in moving C. elegans shows that stretch-unfolding of twitchin kinase occurs in the active muscle, whereby mechanical activity titrates the signaling pathway of this cytoskeletal kinase.
    1. Cell Biology
    2. Computational and Systems Biology

    Transcriptional profiling reveals extraordinary diversity among skeletal muscle tissues

    Erin E Terry, Xiping Zhang ... Michael E Hughes
    There is no such thing as a representative skeletal muscle tissue, as each member of this family of tissues expresses a specialized mRNA program.

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