322 results found
    1. Structural Biology and Molecular Biophysics

    Thermal fluctuations of immature SOD1 lead to separate folding and misfolding pathways

    Ashok Sekhar, Jessica AO Rumfeldt ... Lewis E Kay
    Solution NMR spectroscopy reveals the energy landscape of immature Cu, Zn-superoxide dismutase and leads to atomic resolution structural models of transiently populated non-native oligomers.
    1. Biochemistry and Chemical Biology

    A native chemical chaperone in the human eye lens

    Eugene Serebryany, Sourav Chowdhury ... Eugene I Shakhnovich
    The human eye lens imports and concentrates within itself a naturally abundant small molecule that inhibits cataract-associated aggregation of an eye lens protein before the aggregates get large enough to scatter light.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Ca2+-dependent release of synaptotagmin-1 from the SNARE complex on phosphatidylinositol 4,5-bisphosphate-containing membranes

    Rashmi Voleti, Klaudia Jaczynska, Josep Rizo
    Ca2+-free synaptotagmin-1 binds to neuronal SNARE complexes anchored on nanodiscs, and Ca2+ releases this interaction to induce tight, specific binding to PIP2-containing membranes.
    1. Cancer Biology
    2. Structural Biology and Molecular Biophysics

    Constitutive activation and oncogenicity are mediated by loss of helical structure at the cytosolic boundary of thrombopoietin receptor mutant dimers

    Jean-Philippe Defour, Emilie Leroy ... Stefan N Constantinescu
    Structural and functional analyses reveal the general mechanism of activation of the thrombopoietin receptor and unravel the critical role of W515.
    1. Structural Biology and Molecular Biophysics

    Structure and physiological function of the human KCNQ1 channel voltage sensor intermediate state

    Keenan C Taylor, Po Wei Kang ... Charles R Sanders
    The intermediate state conformation of the human KCNQ1 potassium channel voltage sensor domain was determined, validated, and shown to be conductive under physiological conditions.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Ligand modulation of sidechain dynamics in a wild-type human GPCR

    Lindsay D Clark, Igor Dikiy ... Daniel M Rosenbaum
    Generation of a highly deuterated 13C-methyl labeled wild-type GPCR sample is used to facilitate characterization of the molecular environments and fast ps-ns dynamics of sidechains when the receptor is bound to ligands of different efficacy.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Allosteric coupling asymmetry mediates paradoxical activation of BRAF by type II inhibitors

    Damien M Rasmussen, Manny M Semonis ... Nicholas M Levinson
    A comprehensive allosteric model describes how inhibitors can activate rather than inhibit a target kinase by selectively driving formation of kinase dimers with one inhibited and one activated subunit.
    1. Structural Biology and Molecular Biophysics

    Coil-to-α-helix transition at the Nup358-BicD2 interface activates BicD2 for dynein recruitment

    James M Gibson, Heying Cui ... Chunyu Wang
    A cargo recognition α-helix was identified in Nup358, which is required for activation of a dynein-dependent transport pathway that is essential for brain development.
    1. Neuroscience

    α-Synuclein plasma membrane localization correlates with cellular phosphatidylinositol polyphosphate levels

    Reeba Susan Jacob, Cédric Eichmann ... Philipp Selenko
    Plasma membrane clusters of the Parkinson's disease protein α-synuclein colocalize with negatively charged phospholipids involved in endocytosis and exocytosis.
    1. Structural Biology and Molecular Biophysics

    Inducing conformational preference of the membrane protein transporter EmrE through conservative mutations

    Maureen Leninger, Ampon Sae Her, Nathaniel J Traaseth
    Conservative mutations within a secondary active transport protein influenced the conformational equilibrium probed using NMR spectroscopy which correlated to the functional output in vivo.

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