23 results found
    1. Structural Biology and Molecular Biophysics

    Crystal structure of the full Swi2/Snf2 remodeler Mot1 in the resting state

    Agata Butryn et al.
    The structure of the entire Mot1 Swi2/Snf2 protein uncovers an unexpected auto-inhibited resting state activated by substrate binding, and suggests a DNA pulling mechanism of TBP displacement.
    1. Biochemistry and Chemical Biology

    Conserved RNA-binding specificity of polycomb repressive complex 2 is achieved by dispersed amino acid patches in EZH2

    Yicheng Long et al.
    Biochemical and mutagenesis analysis reveal the long-anticipated RNA-binding elements of Polycomb Repressive Complex 2 (PRC2), an important chromatin modifier, allowing construction of separation-of-function mutants of PRC2 defective in RNA binding but retaining histone-modifying activity.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural insights into the mechanism of the DEAH-box RNA helicase Prp43

    Marcel J Tauchert et al.
    The structural and functional analysis of the ATP-dependent RNA helicase Prp43 provides insights into the mechanisms of RNA binding and translocation, which could serve as paradigm for all DEAH-box proteins.
    1. Structural Biology and Molecular Biophysics

    Protein denaturation at the air-water interface and how to prevent it

    Edoardo D'Imprima et al.
    Hydrophilized graphene prevents protein denaturation at the air-water interface.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    9Å structure of the COPI coat reveals that the Arf1 GTPase occupies two contrasting molecular environments

    Svetlana O Dodonova et al.
    A molecular model of the assembled COPI coat, determined by cryo-electron tomography of an in vitro reconstituted budding reaction, reveals details of interactions mediating coat assembly and shows the binding site of ArfGAP2.
    1. Structural Biology and Molecular Biophysics

    Molecular architecture of the 90S small subunit pre-ribosome

    Qi Sun et al.
    The nearly complete architecture of the gigantic 90S precursor of small ribosomal subunit is determined by cryo-EM.
    1. Chromosomes and Gene Expression

    A histone H3K9M mutation traps histone methyltransferase Clr4 to prevent heterochromatin spreading

    Chun-Min Shan et al.
    A lysine-to-methionine mutation in histone H3 dominantly blocks histone H3K9 methylation by trapping its methyltransferase.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Scaffold nucleoporins Nup188 and Nup192 share structural and functional properties with nuclear transport receptors

    Kasper R Andersen et al.
    Components of the nuclear pore complex share structural and functional features with soluble nuclear transport receptors, which suggests that there may be an evolutionary relationship between these two types of protein.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural basis for the disaggregase activity and regulation of Hsp104

    Alexander Heuck et al.
    Protein disaggregases employ two mechanically-linked ATPase rings that are under steric control by a wrapped-around coiled-coil belt.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    The Sec7 N-terminal regulatory domains facilitate membrane-proximal activation of the Arf1 GTPase

    Brian C Richardson et al.
    A new structure reveals two Arf-GEF regulatory domains form a single structural unit that stimulates Arf-GEF activity.

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