22 results found
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Polypyrimidine tract binding protein 1 protects mRNAs from recognition by the nonsense-mediated mRNA decay pathway

    Zhiyun Ge et al.
    The RNA-binding protein PTBP1 is recruited to sites near stop codons in retroviral and human mRNAs, shielding them from detection and degradation by the nonsense-mediated mRNA decay pathway.
    1. Cancer Biology
    2. Immunology and Inflammation

    Preclinical murine tumor models: a structural and functional perspective

    Marion V Guerin et al.
    Dissecting structural, cellular and molecular differences between transplanted and spontaneous mouse tumor models, highlighting their relevance for predicting the efficacy of anti-cancer treatments in patients.
    1. Developmental Biology
    2. Evolutionary Biology

    Domestic chickens activate a piRNA defense against avian leukosis virus

    Yu Huining Sun et al.
    To protect the germ line genome, chickens acquire new small RNA-based immune defense in response to recently endogenized retroviruses by turning a truncated provirus into a weapon.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Crystal structure of an HIV assembly and maturation switch

    Jonathan M Wagner et al.
    Folding and unfolding of a 6-helix bundle controls HIV assembly and maturation.
    1. Cell Biology

    YAP regulates cell size and growth dynamics via non-cell autonomous mediators

    Douaa Mugahid et al.
    Besides a cell autonomous role in regulating proliferation, YAP regulates the production of several extracellular molecules allowing for population-level coordination of cell growth and death.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Mitochondria supply ATP to the ER through a mechanism antagonized by cytosolic Ca2+

    Jing Yong et al.
    ATP enters the endoplasmic reticulum (ER) lumen through an SLC35B1/AXER-dependentCaATiER mechanism, and ATP usage in the ER renders 'anti-Warburg' effect by increasing ATP regeneration from OxPhos while decreasing glycolysis.
    1. Developmental Biology

    Mechanism and consequence of abnormal calcium homeostasis in Rett syndrome astrocytes

    Qiping Dong et al.
    Increased spontaneous calcium activity in Rett syndrome astrocytes is a key cell-autonomous phenotype that affects synaptic function and network activity.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    ULK3 regulates cytokinetic abscission by phosphorylating ESCRT-III proteins

    Anna Caballe et al.
    ULK3 is a kinase in the abscission checkpoint that temporarily inactivates ESCRT-III proteins via phosphorylation, which is required to delay cytokinesis in response to defects in mitosis.
    1. Cell Biology

    RalB directly triggers invasion downstream Ras by mobilizing the Wave complex

    Giulia Zago et al.
    By moving from correlations to causality in cancer signal transduction using optogenetics, the sufficiency of RalB activation to trigger invasion and the underlying molecular mechanisms were established.
    1. Microbiology and Infectious Disease

    N6-methyladenosine of HIV-1 RNA regulates viral infection and HIV-1 Gag protein expression

    Nagaraja Tirumuru et al.
    Human proteins that add or remove the methyladenosine modification of cellular RNA, or recognize methylated RNA significantly affect HIV-1 infection or viral protein synthesis in cells, suggesting an important role for HIV-1 RNA methylation in regulating viral replication.

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