734 results found
    1. Evolutionary Biology
    2. Structural Biology and Molecular Biophysics

    Structurally distributed surface sites tune allosteric regulation

    James W McCormick, Marielle AX Russo ... Kimberly A Reynolds
    Deep mutational scanning of a synthetic allosteric chimera revealed that a sparse set of mutations on the protein surface improved regulation.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Dynamics of allosteric regulation of the phospholipase C-γ isozymes upon recruitment to membranes

    Edhriz Siraliev-Perez, Jordan TB Stariha ... John Sondek
    PLC-γ isozymes are activated by a combination of receptor engagement and membrane proximity.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Novel ATP-cone-driven allosteric regulation of ribonucleotide reductase via the radical-generating subunit

    Inna Rozman Grinberg, Daniel Lundin ... Britt-Marie Sjöberg
    Structural and functional characterization of an unanticipated mode of allosteric activity regulation in ribonucleotide reductases controlled by an ATP-cone in the radical-generating subunit.
    1. Structural Biology and Molecular Biophysics
    2. Computational and Systems Biology

    Mechanism of allosteric regulation of β2-adrenergic receptor by cholesterol

    Moutusi Manna, Miia Niemelä ... Ilpo Vattulainen
    Atomistic simulations reveal how lipids can allosterically modulate membrane receptors.
    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. Biochemistry and Chemical Biology

    Evolution of (p)ppGpp-HPRT regulation through diversification of an allosteric oligomeric interaction

    Brent W Anderson, Kuanqing Liu ... Jue D Wang
    The signaling ligand (p)ppGpp regulates the enzyme HPRT across species by binding to a novel class of conserved motif, yet its specificity is allosterically altered through evolution of enzyme oligomerization.
    1. Structural Biology and Molecular Biophysics

    Filamentation modulates allosteric regulation of PRPS

    Huan-Huan Hu, Guang-Ming Lu ... Ji-Long Liu
    Cryo-EM structures of two types of prokaryotic Phosphoribosyl pyrophosphate synthase filaments reveal that filamentation into cytoophidia provides a new layer of metabolic regulation.
    1. Structural Biology and Molecular Biophysics

    Auto-regulation of Rab5 GEF activity in Rabex5 by allosteric structural changes, catalytic core dynamics and ubiquitin binding

    Janelle Lauer, Sandra Segeletz ... Marino Zerial
    Understanding the complex auto-regulatory mechanisms for guanine nucleotide exchange factors is critically important for fully appreciating the layers of control for small GTPases.
    1. Biochemistry and Chemical Biology
    2. Computational and Systems Biology

    Coevolution-based prediction of key allosteric residues for protein function regulation

    Juan Xie, Weilin Zhang ... Luhua Lai
    Key allosteric residues are predicted based on sequence coevolution analysis, which serves as guidelines for allosteric drug design and optimization.
    1. Computational and Systems Biology
    2. Structural Biology and Molecular Biophysics

    Functional cross-talk between allosteric effects of activating and inhibiting ligands underlies PKM2 regulation

    Jamie A Macpherson, Alina Theisen ... Dimitrios Anastasiou
    Specific residues within an enzyme integrate allosteric inputs that originate from distinct ligand-binding pockets.

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