Browse our latest Structural Biology and Molecular Biophysics articles

Page 34 of 177
    1. Evolutionary Biology
    2. Structural Biology and Molecular Biophysics

    Peripheral and central employment of acid-sensing ion channels during early bilaterian evolution

    Josep Martí-Solans, Aina Børve ... Timothy Lynagh
    Expression patterns and biophysical properties of acid-sensing ion channels in numerous bilaterian animals offer insight into the deployment of ion channels by the evolving nervous system in complex animals.
    1. Structural Biology and Molecular Biophysics

    State-specific morphological deformations of the lipid bilayer explain mechanosensitive gating of MscS ion channels

    Yein Christina Park, Bharat Reddy ... José D Faraldo-Gómez
    A theory is presented that explains why some ion channels tend to open in response to membrane stretching, which posits that channel closing is disfavored by the morphological energetics of the lipid bilayer, and increasingly so under lateral tension.
    1. Structural Biology and Molecular Biophysics

    Activation-pathway transitions in human voltage-gated proton channels revealed by a non-canonical fluorescent amino acid

    Esteban Suárez-Delgado, Maru Orozco-Contreras ... Leon D Islas
    Combined patch-clamp fluorometry with ANAP, a fluorescent non-canonical amino acid, uncovers transitions in the activation pathway of human HV1 that are modulated by voltage and the pH gradient.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Targeting RNA:protein interactions with an integrative approach leads to the identification of potent YBX1 inhibitors

    Krystel El Hage, Nicolas Babault ... David Pastré
    The development of an integrative computational-experimental approach for identifying small molecules that can disrupt RNA:protein interactions in vitro and in cells led to the identification of several inhibitors of YBX1 in the micromolar range, including a previously approved drug.
    1. Structural Biology and Molecular Biophysics

    The SARS-CoV-2 accessory protein Orf3a is not an ion channel, but does interact with trafficking proteins

    Alexandria N Miller, Patrick R Houlihan ... David E Clapham
    SARS coronaviruses encode several mysterious proteins such as Orf3a and, in contrast to what has been claimed, Orf3a is not an ion channel but rather disrupts cellular trafficking by binding to the protein sorting complex known as HOPS.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    RNA sequence to structure analysis from comprehensive pairwise mutagenesis of multiple self-cleaving ribozymes

    Jessica M Roberts, James D Beck ... Eric J Hayden
    A high-throughput analysis of several self-cleaving ribozymes reveals the effect of every possible mutation, and every possible pair of mutations, and how patterns in the relative activity data can be mapped to canonical and non-canonical structural elements.
    1. Structural Biology and Molecular Biophysics

    Muscle calcium stress cleaves junctophilin1, unleashing a gene regulatory program predicted to correct glucose dysregulation

    Eshwar R Tammineni, Lourdes Figueroa ... Eduardo Rios
    Novel components in the pathway from malignant hyperthermia to diabetes include promotion of a kinase that impedes glycogen synthesis, increased lysis of junctophilin1 and gene regulatory actions by a junctophilin fragment, surprisingly predicted to oppose the effects of elevated calcium.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Structures of human dynein in complex with the lissencephaly 1 protein, LIS1

    Janice M Reimer, Morgan E DeSantis ... Andres E Leschziner
    Structures of human cytoplasmic dynein-1 bound to its regulator LIS1 reveal the interfaces involved in forming the complex and provide a context for disease-linked mutations.
    1. Structural Biology and Molecular Biophysics

    A mechanism of uncompetitive inhibition of the serotonin transporter

    Shreyas Bhat, Ali El-Kasaby ... Walter Sandtner
    Biochemical and electrophysiological approaches show that the amphetamine derivative ECSI#6 is an uncompetitive inhibitor of the serotonin transporter and thus the first ever characterized ligand of a solute carrier of this type.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Mechanism of Ca2+ transport by ferroportin

    Jiemin Shen, Azaan Saalim Wilbon ... Yaping Pan
    Cryo-EM structure and functional analyses show that human iron exporter ferroportin (Fpn) can bind and transport calcium ions and the transport activity is reduced when the concentration of ferrous ions is high.