5,653 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. Developmental Biology
    2. Neuroscience

    Alternative splicing at neuroligin site A regulates glycan interaction and synaptogenic activity

    Shinichiro Oku et al.
    Inclusion of a neuroligin alternatively spliced insert that interacts with a neurexin glycan modification promote development of functional synaptic connections between neurons and may help alleviate consequences of NLGN mutations.
    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.
    Insight
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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. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    The guide sRNA sequence determines the activity level of box C/D RNPs

    Andrea Graziadei et al.
    Integrative structural biology reveals a conformational equilibrium in the Box C/D methylation enzyme that regulates the extent of site-specific 2'-O-rRNA methylation in dependence of the RNA sequence.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Controlling gene activation by enhancers through a drug-inducible topological insulator

    Taro Tsujimura et al.
    A novel synthetic DNA cassette of CTCF-binding sites combined with the drug-controllable induction system of heterochromatin enabled switchable blocking of chromatin conformation and gene-enhancer interaction.
    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. 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
    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.

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