23 results found
    1. Cell Biology
    2. Microbiology and Infectious Disease

    HIV-1 nuclear import in macrophages is regulated by CPSF6-capsid interactions at the nuclear pore complex

    David Alejandro Bejarano et al.
    Interaction of HIV capsids with the cellular protein cleavage-and-polyadenylation factor 6 at the inner side of nuclear pores promotes nuclear entry of the viral replication complex in primary human macrophages.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural insights into the assembly and polyA signal recognition mechanism of the human CPSF complex

    Marcello Clerici et al.
    Structural, biochemical, and proteomic analyses of a four-subunit core module of the cleavage and polyadenylation specificity factor complex reveal its molecular architecture and specific determinants of polyadenylation signal recognition in human mRNAs.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Immunology: Identifying a nuclear passport for HIV

    Lorena Zuliani-Alvarez, Greg J Towers
    Identification of a protein that pulls HIV into the nucleus explains a key step in HIV infection.
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    1. Microbiology and Infectious Disease

    Quantitative microscopy of functional HIV post-entry complexes reveals association of replication with the viral capsid

    Ke Peng et al.
    A robust method to quantitatively visualize HIV-1 replication complexes in infected cells shows that these complexes remain associated with the viral capsid beyond nuclear import in primary macrophages.
    1. Microbiology and Infectious Disease

    MxB sensitivity of HIV-1 is determined by a highly variable and dynamic capsid surface

    Richard J Miles et al.
    Conformational flexibility in HIV-1 capsid, provided by cyclophilin A binding, facilitates evasion of capsid-targeting restriction factor MxB, while allowing sequence change to facilitate cytotoxic T-cell evasion.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Nuclear pore heterogeneity influences HIV-1 infection and the antiviral activity of MX2

    Melissa Kane et al.
    Comprehensive investigation reveals the variability and importance of the nuclear pore complex in HIV-1 infection and the activity of the antiretroviral protein, MX2.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Extensive cargo identification reveals distinct biological roles of the 12 importin pathways

    Makoto Kimura et al.
    Transport-based high-throughput identification of cargo proteins specific to all 12 human importin-β family nuclear import receptors revealed biological processes that the cargo cohorts of each receptor are involved in.
    1. Cell Biology

    CPEB4 is regulated during cell cycle by ERK2/Cdk1-mediated phosphorylation and its assembly into liquid-like droplets

    Jordina Guillén-Boixet et al.
    CPEB4's switch from translational repressor to activator is regulated during cell cycle by hyperphosphorylation of its intrinsically disordered domain, which controls its phase-separation into RNA-containing liquid-like droplets.
    1. Neuroscience

    NUDT21-spanning CNVs lead to neuropsychiatric disease and altered MeCP2 abundance via alternative polyadenylation

    Vincenzo A Gennarino et al.
    Individuals with deletions or duplications of the NUDT21 gene have altered levels of MeCP2 protein and intellectual disabilities.
    1. Chromosomes and Gene Expression

    A non-canonical role for the EDC4 decapping factor in regulating MARF1-mediated mRNA decay

    William R Brothers et al.
    Crosslink immunopreciptiation (iCLIP) studies reveal important mechanistic insights into how MARF1 post-transcriptionally regulates targeted mRNAs and uncover a novel mode by which EDC4 regulates mRNA metabolism.

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