Browse our Research Articles

Page 603 of 1,424
    1. Genetics and Genomics

    Establishment of H3K9me3-dependent heterochromatin during embryogenesis in Drosophila miranda

    Kevin H-C Wei, Carolus Chan, Doris Bachtrog
    Heterochromatin is established at nucleation sites associated with open chromatin and RNA transcripts and matures into stable domains if they are found near transposable elements targeted by maternally deposited piRNAs.
    1. Cancer Biology

    An epigenetic switch regulates the ontogeny of AXL-positive/EGFR-TKi-resistant cells by modulating miR-335 expression

    Polona Safaric Tepes, Debjani Pal ... Raffaella Sordella
    Erlotinib-resistant AXL overexpressing cells are present in therapy-naive tumors, and expression of AXL in these cells is regulated through a stochastic mechanism centered on the epigenetic regulation of miR-335.
    1. Cell Biology
    2. Neuroscience

    Action potential-coupled Rho GTPase signaling drives presynaptic plasticity

    Shataakshi Dube O'Neil, Bence Rácz ... Scott H Soderling
    Proteomic and genetic analysis discovers a new cytoskeletal mechanism of presynaptic short-term plasticity common across neuronal cell types.
    1. Neuroscience

    Reconciling functional differences in populations of neurons recorded with two-photon imaging and electrophysiology

    Joshua H Siegle, Peter Ledochowitsch ... Saskia EJ de Vries
    Discrepancies between functional responses measured with electrophysiology and calcium imaging can be largely reconciled by considering the spike-to-calcium transfer function, neuronal sampling bias, and cluster merging artifacts during spike sorting.
    1. Evolutionary Biology

    Contingency and chance erase necessity in the experimental evolution of ancestral proteins

    Victoria Cochran Xie, Jinyue Pu ... Bryan C Dickinson
    Replicating experimental evolution from ancestral proteins shows that historical contingency steadily overwhelms chance and necessity as the primary cause of evolutionary variation in molecular sequences on long phylogenetic timescales.
    1. Medicine
    2. Microbiology and Infectious Disease

    Ct threshold values, a proxy for viral load in community SARS-CoV-2 cases, demonstrate wide variation across populations and over time

    A Sarah Walker, Emma Pritchard ... COVID-19 Infection Survey team
    Wide variation in cycle threshold (Ct) values from SARS-CoV-2 RT-PCR tests over calendar time offers the potential for their broader use in public testing programmes as an ‘early-warning’ system for shifts in infectious load and hence transmission.
    1. Developmental Biology

    Pak1 and PP2A antagonize aPKC function to support cortical tension induced by the Crumbs-Yurt complex

    Cornelia Biehler, Katheryn E Rothenberg ... Patrick Laprise
    Cell biology analyses in Drosophila epithelial tissues reveal novel mechanisms connecting epithelial polarity proteins with Myosin-dependent cell contractility.
    1. Microbiology and Infectious Disease

    A novel mechanosensitive channel controls osmoregulation, differentiation, and infectivity in Trypanosoma cruzi

    Noopur Dave, Ugur Cetiner ... Veronica Jimenez
    Structurally divergent bacterial-like mechanosensitive channels control multiple cellular functions in protozoan parasites.
    1. Computational and Systems Biology
    2. Microbiology and Infectious Disease

    A fusion peptide in preS1 and the human protein disulfide isomerase ERp57 are involved in hepatitis B virus membrane fusion process

    Jimena Pérez-Vargas, Elin Teppa ... François-Loïc Cosset
    The mechanism triggering HBV membrane fusion involves ERp57, a cellular protein disulfide isomerase, and ultimately leads to the exposition of a fusion peptide that was identified in the pre-S1 determinant.
    1. Epidemiology and Global Health

    Mendelian randomization analysis provides causality of smoking on the expression of ACE2, a putative SARS-CoV-2 receptor

    Hui Liu, Junyi Xin ... Xia Jiang
    Smoking, measured by both initiation and intensity, are significantly associated with an elevated expression level of ACE2 in multiple human tissues/organs, subsequently increasing the susceptibility and severity of COVID-19.