Browse our latest Structural Biology and Molecular Biophysics articles

Page 122 of 178
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Anti-diabetic drug binding site in a mammalian KATP channel revealed by Cryo-EM

    Gregory M Martin, Balamurugan Kandasamy ... Show-Ling Shyng
    A structure of a pancreatic ATP-sensitive potassium channel complex at 3.63Å resolution obtained by cryo-electron microscopy reveals how a commonly used anti-diabetic drug interacts with and inhibits the channel to stimulate insulin secretion.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structure of RNA polymerase bound to ribosomal 30S subunit

    Gabriel Demo, Aviram Rasouly ... Andrei A Korostelev
    Cryo-EM structures of the 30S*RNAP complex visualize co-localization of the transcription and translation machineries and provide insights into the transcription-translation synchrony, which coordinates gene expression in bacteria.
    1. Structural Biology and Molecular Biophysics

    Allosteric fine-tuning of the conformational equilibrium poises the chaperone BiP for post-translational regulation

    Lukasz Wieteska, Saeid Shahidi, Anastasia Zhuravleva
    The molecular chaperone BIP from the endoplasmic reticulum is fine-tuned postranslationally through the thermodynamic and kinetic alterations in its conformational ensemble of functionally and structurally distinct physiological forms.
    1. Structural Biology and Molecular Biophysics

    Patient-specific mutations impair BESTROPHIN1’s essential role in mediating Ca2+-dependent Cl- currents in human RPE

    Yao Li, Yu Zhang ... Tingting Yang
    A multidisciplinary platform featured by patient-derived RPEs is established to study the disease-causing mechanisms of BEST1 mutations, and demonstrates gene-supplemented rescue of the mutation-caused deficiency in Ca2+-dependent Cl- current in human RPE.
    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. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    Mechanism of environmentally driven conformational changes that modulate H-NS DNA-bridging activity

    Ramon A van der Valk, Jocelyne Vreede ... Remus T Dame
    The DNA-bridging efficiency of H-NS, a genome organising and transcription regulatory protein, is modulated by changes in environmental conditions of the cell, which drive a structural rearrangement of the protein.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Competing scaffolding proteins determine capsid size during mobilization of Staphylococcus aureus pathogenicity islands

    Altaira D Dearborn, Erin A Wall ... Terje Dokland
    Cryo-electron microscopy and genetics show how Staphylococcus aureus pathogenicity island 1 hijacks the assembly pathway of a helper phage for its own propagation.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    A Histidine pH sensor regulates activation of the Ras-specific guanine nucleotide exchange factor RasGRP1

    Yvonne Vercoulen, Yasushi Kondo ... Jeroen P Roose
    The Ras activator RasGRP1 that impacts Ras signals in immune cells, leukemias, and colorectal cancer, switches to an active conformation aided by a pH-sensitive histidine residue in a central location of the RasGRP1 molecule.
    1. Structural Biology and Molecular Biophysics

    Molecular determinants of permeation in a fluoride-specific ion channel

    Nicholas B Last, Senmiao Sun ... Christopher Miller
    The ion-transport pathway of an unconventional bacterial fluoride channel is mapped out through combined crystallographic and functional experiments.
    1. Structural Biology and Molecular Biophysics
    2. Computational and Systems Biology

    Lipids and ions traverse the membrane by the same physical pathway in the nhTMEM16 scramblase

    Tao Jiang, Kuai Yu ... Emad Tajkhorshid
    A concerted approach employing equilibrium and biased molecular simulations, electrophysiology, mutagenesis, and functional assays reveals, in atomic details, the mechanism and pathway for transport of phospholipids and ions by a lipid scramblase.