4,423 results found
    1. Microbiology and Infectious Disease

    Distinct chromatin functional states correlate with HIV latency reactivation in infected primary CD4+ T cells

    Emilie Battivelli et al.
    Analysis of HIV integration sites from induced and non-induced latently infected populations reveals the role of genomic localization and chromatin context in the fate of HIV-1 infection and the reversal of viral latency.
    1. Microbiology and Infectious Disease

    HIV-1 Latency: Coloring hidden viruses

    Marina Lusic
    An improved dual-color reporter reveals how the fate of latent HIV-1 depends on where it integrates in the human genome.
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    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    Structure of a Holliday junction complex reveals mechanisms governing a highly regulated DNA transaction

    Gurunathan Laxmikanthan et al.
    The structure of a multi-protein DNA recombination reaction intermediate reveals how regulation is achieved by protein-mediated DNA wrapping around a core enzyme-substrate complex.
    1. Cell Biology

    Switch-like Arp2/3 activation upon WASP and WIP recruitment to an apparent threshold level by multivalent linker proteins in vivo

    Yidi Sun et al.
    Intersectin counterparts in yeast recruit WASP and WIP to endocytic sites to establish a robust multivalent SH3 domain-PRM interaction network which gives actin assembly onset a switch-like behavior in vivo.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural basis of diverse membrane target recognitions by ankyrins

    Chao Wang et al.
    The 24 ankyrin repeats of ankyrin proteins form an extended solenoid that provides an extremely conserved groove for binding to numerous targets via combinatorial usage of multiple weak interaction sites.
    1. Structural Biology and Molecular Biophysics

    Germline VRC01 antibody recognition of a modified clade C HIV-1 envelope trimer and a glycosylated HIV-1 gp120 core

    Andrew J Borst et al.
    An integrative structural and biophysical workflow indicates engagement of VRC01 germline antibodies can occur with a gp120 426c core construct containing all wild-type N-linked glycosylation sites, including the Asn276 glycan.
    1. Structural Biology and Molecular Biophysics

    Crystal structure of human U1 snRNP, a small nuclear ribonucleoprotein particle, reveals the mechanism of 5′ splice site recognition

    Yasushi Kondo et al.
    The complete architecture of human spliceosomal U1 snRNP and its interaction with the 5′ splice site of pre-mRNA are described in atomic detail.
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    Cryo-EM structure of the SAGA and NuA4 coactivator subunit Tra1 at 3.7 angstrom resolution

    Luis Miguel Díaz-Santín et al.
    An atomic model of the 3744-residue Tra1 protein reveals multiple transcription activator binding sites, its integration within the SAGA chromatin coactivator complex, and a striking similarity to DNA-repair factor DNA-PKcs.
    1. Neuroscience

    A simple retinal mechanism contributes to perceptual interactions between rod- and cone-mediated responses in primates

    William N Grimes et al.
    A combination of physiological and perceptual experiments show that the responses of rod photoreceptors inhibit those of cones more than vice versa, and reveal both the site of the retinal interaction and the underlying mechanism.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Phosphorylation-mediated interactions with TOPBP1 couple 53BP1 and 9-1-1 to control the G1 DNA damage checkpoint

    Nicolas Bigot et al.
    Two phosphorylation sites on 53BP1 are found to mediate interaction with TOPBP1-RAD9 and shown to be essential for assembling the G1 DNA damage checkpoint response apparatus.

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