24 results found
    1. Epidemiology and Global Health
    2. Structural Biology and Molecular Biophysics

    Electron cryo-microscopy of bacteriophage PR772 reveals the elusive vertex complex and the capsid architecture

    Hemanth KN Reddy et al.
    The structure and composition of the elusive vertex complex in Tectiviridae is finally revealed and the newly reported protein conformations help to maintain the capsid architecture.
    1. Medicine

    Vanishing white matter disease expression of truncated EIF2B5 activates induced stress response

    Matthew D Keefe et al.
    Neurological pathology and chronic activation of the induced stress response are caused by expression of a truncated EIF2B5 in vanishing white matter disease.
    1. Cell Biology
    2. Genetics and Genomics

    The ribosomal P-stalk couples amino acid starvation to GCN2 activation in mammalian cells

    Heather P Harding et al.
    Genetic lesions that compromise the ribosome P-stalk implicate direct signalling from the ribosome to the translation initiation factor eIF2 kinase GCN2 in the cellular response to amino acid starvation.
    1. Cancer Biology
    2. Cell Biology

    TGF-β reduces DNA ds-break repair mechanisms to heighten genetic diversity and adaptability of CD44+/CD24− cancer cells

    Debjani Pal et al.
    Phenotypic diversity and cell state transition (i.e., acquisition of a CD44+/CD24- cell state or exposure to TGF-beta) can spur intra-tumor genetic heterogeneity and contribute to acquired resistance.
    1. Biochemistry and Chemical Biology

    Stepwise assembly of the human replicative polymerase holoenzyme

    Mark Hedglin et al.
    Fluorescence resonance energy transfer has been used to explore the interactions between DNA polymerases, sliding clamps and clamp loaders as DNA is replicated in human cells.
    1. Structural Biology and Molecular Biophysics

    Site-specific effects of neurosteroids on GABAA receptor activation and desensitization

    Yusuke Sugasawa et al.
    Differential, state-dependent occupancy of three discrete binding sites on α1β3 GABAA receptors determines whether a specific neurosteroid analogue potentiates or inhibits GABA-elicited currents or competitively antagonizes neurosteroid action.
    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 et al.
    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
    2. Chromosomes and Gene Expression

    Structure of the active form of human origin recognition complex and its ATPase motor module

    Ante Tocilj et al.
    The human Origin Replication Complex is shaped as a shallow corkscrew in a classic AAA+ organization reminiscent of clamp loader complexes with highly controlled ATPase activity as exemplified by Meier-Gorlin syndrome mutations.
    1. Structural Biology and Molecular Biophysics

    Rac1 GTPase activates the WAVE regulatory complex through two distinct binding sites

    Baoyu Chen et al.
    The cryo-electron microscopy structure of an assembly of the WAVE Regulatory Complex and its activator, the Rac GTPase, plus complementary biochemistry and biophysics, reveal a novel activation mechanism involving two distinct Rac binding sites.
    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 et al.
    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.

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