832 results found
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Mechanism of Na+-dependent citrate transport from the structure of an asymmetrical CitS dimer

    David Wöhlert et al.
    The high-resolution x-ray structure of an asymmetrical SeCitS dimer, present in the inward- and outward-facing state, provides a complete mechanism of substrate and ion translocation in a sodium-dependent symporter.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    The export receptor Crm1 forms a dimer to promote nuclear export of HIV RNA

    David S Booth et al.
    The nuclear export receptor Crm1 cooperatively binds its HIV Rev-RRE cargo as a dimer using a species-specific interface that supports viral replication by enhancing nuclear export of HIV RNA.
    1. Neuroscience

    Central Dicer-miR-103/107 controls developmental switch of POMC progenitors into NPY neurons and impacts glucose homeostasis

    Sophie Croizier et al.
    Loss miRNA maturation in proopiomelanocortin (POMC) neurons causes metabolic dysregulation and favors the differentiation of Pomc progenitors into neuropeptide Y neurons, a developmental process that appears to specifically involve miR-103/107.
    1. Biochemistry and Chemical Biology

    Collagen induces activation of DDR1 through lateral dimer association and phosphorylation between dimers

    Victoria Juskaite et al.
    Ligand binding induces DDR1 kinase activity through recruitment of DDR1 receptors into signalling clusters in which phosphorylation occurs across different dimers.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Crystal structure of intraflagellar transport protein 80 reveals a homo-dimer required for ciliogenesis

    Michael Taschner et al.
    CRISPR/Cas knockout of intraflagellar transport protein 80 shows that this subunit is absolutely required for ciliogenesis, and biophysical studies reveal that this protein may dimerize the intraflagellar transport complex.
    1. Chromosomes and Gene Expression

    Crosstalk within a functional INO80 complex dimer regulates nucleosome sliding

    Oliver Willhoft et al.
    Regulation of the INO80 chromatin remodelling complex differs from those identified in other chromatin remodellers and involves a C-terminal domain of the Ino80 subunit.
    1. Cancer Biology
    2. Cell Biology

    Inhibitor-induced HER2-HER3 heterodimerisation promotes proliferation through a novel dimer interface

    Jeroen Claus et al.
    The clinically approved HER2 inhibitor lapatinib causes HER2 and HER3 kinase domains to dimerise in a non-canonical, symmetric orientation, providing a platform for oligomerisation and predisposing to receptor-driven cell proliferation.
    1. Chromosomes and Gene Expression
    2. Stem Cells and Regenerative Medicine

    MicroRNA-deficient mouse embryonic stem cells acquire a functional interferon response

    Jeroen Witteveldt et al.
    MiRNA-mediated suppression of MAVS expression in embryonic stem cells is necessary to inactivate the type I interferon response.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    MicroRNAs shape circadian hepatic gene expression on a transcriptome-wide scale

    Ngoc-Hien Du et al.
    In the liver, microRNAs exert widespread functions in the modulation of phases and amplitudes of clock-controlled gene expression, but their influence on the core clock is remarkably mild.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Symmetry broken and rebroken during the ATP hydrolysis cycle of the mitochondrial Hsp90 TRAP1

    Daniel Elnatan et al.
    A flip of the dimer asymmetry following the first ATP hydrolysis provides a mechanistic model for client remodeling by the mitochondrial Hsp90, TRAP1.

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