1,732 results found
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    TRIP13 is a protein-remodeling AAA+ ATPase that catalyzes MAD2 conformation switching

    Qiaozhen Ye et al.
    TRIP13 inactivates the spindle assembly checkpoint by converting MAD2 from its active ‘closed’ state to its inactive ‘open’ state.
    1. Structural Biology and Molecular Biophysics

    Mechanical inhibition of isolated Vo from V/A-ATPase for proton conductance

    Jun-ichi Kishikawa et al.
    Cryo-EM structures of rotary V-ATPase reveal the ON-OFF switching mechanism of H+ translocation in the Vo membrane domain.
    1. Cell Biology
    2. Developmental Biology

    The Sec14-like phosphatidylinositol transfer proteins Sec14l3/SEC14L2 act as GTPase proteins to mediate Wnt/Ca2+ signaling

    Bo Gong et al.
    Sec14l3/SEC14L2 respond to upstream Wnt/Frizzled/Dvl stimulation to recruit and activate phospholipase Cδ4a (Plcδ4a) to further initiate calcium release.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structure of Vps4 with circular peptides and implications for translocation of two polypeptide chains by AAA+ ATPases

    Han Han et al.
    Structural and biochemical studies indicate that AAA+ ATPase employ a general mechanism to translocate a variety of substrates, including extended polypeptides, hairpins, crosslinked chains, and chains conjugated to other molecules.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Noncanonical binding of BiP ATPase domain to Ire1 and Perk is dissociated by unfolded protein CH1 to initiate ER stress signaling

    Marta Carrara et al.
    The chaperone protein BiP forms complexes with Ire1 and Perk that dissociate when unfolded proteins bind to BiP to activate the unfolded protein response in the ER.
    1. Structural Biology and Molecular Biophysics

    The acidic domain of the endothelial membrane protein GPIHBP1 stabilizes lipoprotein lipase activity by preventing unfolding of its catalytic domain

    Simon Mysling et al.
    Intravascular triglyceride hydrolysis by lipoprotein lipase is crucial for delivering lipid nutrients to vital tissues, such as the heart, skeletal muscle, and adipose tissue.
    1. Biochemistry and Chemical Biology

    Prefabrication of a ribosomal protein subcomplex essential for eukaryotic ribosome formation

    Cohue Peña et al.
    The ATPase Fap7 prefabricates a uS11:eS26 ribosomal protein complex for ribosome assembly.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural basis for activation and non-canonical catalysis of the Rap GTPase activating protein domain of plexin

    Yuxiao Wang et al.
    The crystal structures of the intracellular part of the plexin receptor in the active dimer form, and its complex with a key downstream signalling protein Rap, provide insights into how plexin initiates a signalling cascade involved in axon guidance.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural basis of protein translocation by the Vps4-Vta1 AAA ATPase

    Nicole Monroe et al.
    A cryo-electron microscopy structure of a substrate-bound Vps4-Vta1 AAA ATPase reveals an asymmetric hexameric ring and suggests how nucleotide-induced changes in subunit interfaces translocate polypeptides into the central pore.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    ATPase activity of the DEAD-box protein Dhh1 controls processing body formation

    Christopher Frederick Mugler et al.
    The ATPase Dhh1 controls processing body formation and disassembly in yeast cells, and processing body dynamics can be recapitulated in vitro with recombinant Dhh1, ATP and RNA.

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