Browse our latest Structural Biology and Molecular Biophysics articles

Page 113 of 177
    1. Developmental Biology
    2. Structural Biology and Molecular Biophysics

    Gastrulation: May the force be with you

    Shinuo Weng, John B Wallingford
    Understanding the coordination of the forces generated in embryos by two processes, convergent extension and convergent thickening, is key to understanding how a hollow sphere of cells develops into an elongated embryo.
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    1. Structural Biology and Molecular Biophysics

    Ensemble cryoEM elucidates the mechanism of insulin capture and degradation by human insulin degrading enzyme

    Zhening Zhang, Wenguang G Liang ... Wei-Jen Tang
    Integrative structural analyses of human insulin degradingenzyme (IDE) reveal how IDE selectively degrades peptides that form toxicaggregates, which guides IDE-based therapeutic innovations to treat diabetesand Alzheimer's disease.
    1. Structural Biology and Molecular Biophysics

    Intracellular antibody signalling is regulated by phosphorylation of the Fc receptor TRIM21

    Claire Dickson, Adam J Fletcher ... Leo C James
    Phosphorylation deactivates TRIM21 B Box autoinhibition to licence proinflammatory signalling by cytosolic antibodies.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Acyl chain asymmetry and polyunsaturation of brain phospholipids facilitate membrane vesiculation without leakage

    Marco M Manni, Marion L Tiberti ... Bruno Antonny
    The asymmetric combination of saturated and polyunsaturated acyl chains in phospholipids as typically observed in synapses makes membranes prone to deformation and fission without compromising their impermeability.
    1. Structural Biology and Molecular Biophysics

    Hexameric and pentameric complexes of the ExbBD energizer in the Ton system

    Saori Maki-Yonekura, Rei Matsuoka ... Koji Yonekura
    Crystallography and single particle cryo-EM reveal hexameric and pentameric structures of the ExbBD energizer in the Ton system and oligomeric transition, which provides a unique working mechanism and a new vision of dynamic membrane biology.
    1. Developmental Biology
    2. Structural Biology and Molecular Biophysics

    Large, long range tensile forces drive convergence during Xenopus blastopore closure and body axis elongation

    David R Shook, Eric M Kasprowicz ... Raymond Keller
    Blastopore closure in Xenopus is driven by two morphogenic mechanisms that have strongly context dependent effects on tissue movement and that generate tensile force across tissues: convergent extension, as expected, and, unexpectedly, convergent thickening.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Two distinct DNA sequences recognized by transcription factors represent enthalpy and entropy optima

    Ekaterina Morgunova, Yimeng Yin ... Jussi Taipale
    The epistasis observed in TF-DNA binding preferences can be explained by the presence of two optima of very similar Gibbs energy that are located relatively far from each other in sequence space.
    1. Microbiology and Infectious Disease
    2. Structural Biology and Molecular Biophysics

    HIV-1 Env trimer opens through an asymmetric intermediate in which individual protomers adopt distinct conformations

    Xiaochu Ma, Maolin Lu ... Walther Mothes
    The identification of a single-CD4 bound asymmetric HIV-1 Envelope trimer intermediate provides new mechanistic insights into the activation of Envelope for fusion, and highlights the importance of asymmetry in biology.
    1. Structural Biology and Molecular Biophysics

    Functional roles of Mg2+ binding sites in ion-dependent gating of a Mg2+ channel, MgtE, revealed by solution NMR

    Tatsuro Maruyama, Shunsuke Imai ... Masanori Osawa
    Nuclear magnetic resonance analysis revealed the structural and dynamical changes in MgtE during the channel closure caused by the cooperative Mg2+-binding, which had remained undescribed only by a static crystal structure.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Mechanochemical coupling and bi-phasic force-velocity dependence in the ultra-fast ring ATPase SpoIIIE

    Ninning Liu, Gheorghe Chistol ... Carlos Bustamante
    Probing the DNA motor SpoIIIE at the single-molecule level has revealed its force-generating step, rich translocation dynamics during motor operation and a novel, bi-phasic mechanical response to opposing force.