787 results found
    1. Microbiology and Infectious Disease

    Redox controls RecA protein activity via reversible oxidation of its methionine residues

    Camille Henry et al.
    RecA is inactivated by oxidative stress and repaired by the MsrA/B anti-ROS defense system.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural and biochemical analyses of the DEAD-box ATPase Sub2 in association with THO or Yra1

    Yi Ren et al.
    Biochemical and structural analyses of a universal mRNP remodeling pathway suggest an ATPase-powered targeted deposition of export factors onto mRNP.
    1. Structural Biology and Molecular Biophysics

    Structural basis for DNA 5´-end resection by RecJ

    Kaiying Cheng et al.
    A structural investigation reveals details of the mechanism by which the nuclease RecJ processes DNA ends to repair double strand breaks.
    1. Developmental Biology

    Tip cell-specific requirement for an atypical Gpr124- and Reck-dependent Wnt/β-catenin pathway during brain angiogenesis

    Benoit Vanhollebeke et al.
    The membrane proteins Reck and Gpr124 are integral components of a novel Wnt7a/Wnt7b-specific signaling complex, and there is a distinctive requirement for Wnt/β-catenin signaling in tip cells during angiogenesis in the central nervous system.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Rev7 and 53BP1/Crb2 prevent RecQ helicase-dependent hyper-resection of DNA double-strand breaks

    Bryan A Leland et al.
    A single-cell assay reveals that the genetic rewiring that underlies PARP inhibitor resistance drives altered DNA double-strand break end resection pathway choice.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Homology sensing via non-linear amplification of sequence-dependent pausing by RecQ helicase

    Yeonee Seol et al.
    The rate of DNA unwinding by RecQ helicases is dramatically modulated by the DNA duplex stability in a geometry-dependent manner, providing an intrinsic mechanism for suppressing illegitimate recombination.
    1. Structural Biology and Molecular Biophysics

    How HIV-1 Nef hijacks the AP-2 clathrin adaptor to downregulate CD4

    Xuefeng Ren et al.
    The structure of the Nef:AP-2 complex has been determined and used as the basis of a model that explains how HIV-1 Nef downregulates the CD4 receptor from the surface of the infected cells.
    1. Physics of Living Systems
    2. Structural Biology and Molecular Biophysics

    Spatial and temporal organization of RecA in the Escherichia coli DNA-damage response

    Harshad Ghodke et al.
    Phase separated DNA-free stored forms of RecA dissolve in response to DNA damage to make RecA available for repair and recombination reactions as part of the bacterial (Escherichia coli) SOS response.
    1. Developmental Biology
    2. Neuroscience

    Molecular determinants in Frizzled, Reck, and Wnt7a for ligand-specific signaling in neurovascular development

    Chris Cho et al.
    Molecular dissection of Frizzled, Reck, and Wnt7a provides critical insight into the long-standing question of ligand-receptor specificity in the field of Wnt signaling.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Lis1 regulates dynein by sterically blocking its mechanochemical cycle

    Katerina Toropova et al.
    Structural and functional studies reveal how a ubiquitous regulator of dynein keeps the microtubule-based motor in a persistent track-bound state.

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