Browse our latest Structural Biology and Molecular Biophysics articles

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    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Control of Slc7a5 sensitivity by the voltage-sensing domain of Kv1 channels

    Shawn M Lamothe, Nazlee Sharmin ... Harley T Kurata
    The voltage-sensing mechanism of a subfamily of potassium channels is modulated in unconventional ways by an amino acid transporter.
    1. Structural Biology and Molecular Biophysics

    Structural basis for SARM1 inhibition and activation under energetic stress

    Michael Sporny, Julia Guez-Haddad ... Yarden Opatowsky
    Cryo-EM shows that the NADase activity of SARM1 is allosterically inhibited by physiological concentrations of NAD+ that stabilizes an auto-inhibited conformation of SARM1, explaining how NAD+ depletion may inflict neurodegeneration.
    1. Microbiology and Infectious Disease
    2. Structural Biology and Molecular Biophysics

    Structures of diverse poxin cGAMP nucleases reveal a widespread role for cGAS-STING evasion in host–pathogen conflict

    James B Eaglesham, Kacie L McCarty, Philip J Kranzusch
    Poxin enzymes are a diverse family of insect and viral 2′3′-cGAMP nucleases, which evolved from self-cleaving RNA virus accessory proteases.
    1. Structural Biology and Molecular Biophysics

    Large domain movements through the lipid bilayer mediate substrate release and inhibition of glutamate transporters

    Xiaoyu Wang, Olga Boudker
    Substrate releasing or inhibitor binding on the intracellular side of a glutamate transporter homologue require movements of the transport domain through the lipid membrane, which undergoes adaptive deformations.
    1. Structural Biology and Molecular Biophysics

    A sulfur-aromatic gate latch is essential for opening of the Orai1 channel pore

    Priscilla S-W Yeung, Christopher E Ing ... Murali Prakriya
    Electrophysiological and molecular modeling studies identify a sulfur-aromatic interaction between the hydrophobic channel gate and a nearby methionine residue, termed the "gate latch", which is essential for Orai1 pore opening.
    1. Structural Biology and Molecular Biophysics

    New capsaicin analogs as molecular rulers to define the permissive conformation of the mouse TRPV1 ligand-binding pocket

    Simon Vu, Vikrant Singh ... Jie Zheng
    Novel capsaicin analogs with conserved chemistry but varying sizes were used as molecular rulers to investigate energetics of conformational changes in the ligand-binding pocket and mechanisms of TRPV1 ligand-gating.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Uncovering the basis of protein-protein interaction specificity with a combinatorially complete library

    Thuy-Lan V Lite, Robert A Grant ... Michael T Laub
    A generalizable approach to understanding the logic of molecular recognition reveals the contributions of individual residues to the specificity of protein-protein interactions.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    High-resolution structures of multiple 5-HT3AR-setron complexes reveal a novel mechanism of competitive inhibition

    Sandip Basak, Arvind Kumar ... Sudha Chakrapani
    Cryo-electron microscopic structures of 5-HT3A receptor in complex with first and second generations of clinically used setron reveal the molecular basis for their binding modes and mechanisms of inhibitory action.
    1. Structural Biology and Molecular Biophysics

    Structural basis of ClpXP recognition and unfolding of ssrA-tagged substrates

    Xue Fei, Tristan A Bell ... Robert T Sauer
    Cryo-EM structures of the AAA+ ClpXP protease bound to an ssrA degron reveal the mechanism of substrate recognition and show how the machine transitions from recognition to translocation and unfolding.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural insight into toxin secretion by contact-dependent growth inhibition transporters

    Jeremy Guerin, Istvan Botos ... Susan K Buchanan
    Structures of CdiB outer membrane transporters reveal the channel-gating mechanism for the secretion of large bacterial toxins.