19 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. Structural Biology and Molecular Biophysics

    Enhanced specificity mutations perturb allosteric signaling in CRISPR-Cas9

    Lukasz Nierzwicki, Kyle W East ... Giulia Palermo
    Allostery holds critical role in CRISPR-Cas9 specificity enhancement.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Elucidation of a four-site allosteric network in fibroblast growth factor receptor tyrosine kinases

    Huaibin Chen, William M Marsiglia ... Moosa Mohammadi
    A four-switch long-range allosteric network controls FGF receptor kinase conformational dynamics as well as activity and is applicable to other receptor tyrosine kinases.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    A conserved histidine modulates HSPB5 structure to trigger chaperone activity in response to stress-related acidosis

    Ponni Rajagopal, Eric Tse ... Rachel E Klevit
    Small decreases in pH associated with cellular stress conditions unleash a cryptic mode of client binding in a ubiquitously expressed human small heat shock protein that is more effective at delaying client aggregation.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Tuning site-specific dynamics to drive allosteric activation in a pneumococcal zinc uptake regulator

    Daiana A Capdevila, Fidel Huerta ... David P Giedroc
    Internal dynamics play a crucial functional role in MarR (multiple antibiotic resistance repressor) proteins and their role reconciles the distinct allosteric mechanisms proposed previously.
    1. Structural Biology and Molecular Biophysics

    Differential conformational dynamics in two type-A RNA-binding domains drive the double-stranded RNA recognition and binding

    Firdousi Parvez, Devika Sangpal ... Jeetender Chugh
    The differential conformational space accessible to the two domains of TRBP, even though they both adopt a canonical dsRBD fold, affect how they interact with target RNAs.
    1. Structural Biology and Molecular Biophysics

    Dynamic allostery in substrate binding by human thymidylate synthase

    Jeffrey P Bonin, Paul J Sapienza, Andrew L Lee
    The mechanism of substrate binding cooperativity in human thymidylate synthase does not derive from millisecond dynamic interconversion between active and inactive conformations in solution, but instead results primarily from differential changes in faster side-chain motions (conformational entropy), facilitated by a disordered N-terminus.
    1. Computational and Systems Biology
    2. Structural Biology and Molecular Biophysics

    Local frustration determines loop opening during the catalytic cycle of an oxidoreductase

    Lukas S Stelzl, Despoina AI Mavridou ... Christina Redfield
    The cysteine pair oxidation state in nDsbD acts as a ‘switch’ controlling the presence or absence of frustration in the active-site and determining the dynamic behavior of the cap loop.

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