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

    Divergent acyl carrier protein decouples mitochondrial Fe-S cluster biogenesis from fatty acid synthesis in malaria parasites

    Seyi Falekun et al.
    Malaria parasites have simplified and adapted their mitochondrial metabolism to lack fatty acid synthesis but retain an unusual acyl carrier protein required for stability of the core iron-sulfur cluster biogenesis complex.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    The Lon protease temporally restricts polar cell differentiation events during the Caulobacter cell cycle

    Deike J Omnus et al.
    A proteomics-based approach identifies novel substrate proteins of the Lon protease in Caulobacter crescentus and reveals a critical role of Lon in regulating flagella assembly and stalk biogenesis during the cell cycle.
    1. Structural Biology and Molecular Biophysics

    Transcription initiation at a consensus bacterial promoter proceeds via a ‘bind-unwind-load-and-lock’ mechanism

    Abhishek Mazumder et al.
    Single-molecule fluorescence experiments reveal transcription initiation proceeds via a 'bind-unwind-load-and-lock' mechanism where promoter DNA unwinds outside the RNA polymerase (RNAP) cleft, the unwound template-DNA loads into the cleft, and RNAP 'locks' the template-DNA by closing the RNAP clamp module.
    1. Developmental Biology
    2. Neuroscience

    Stretching of the retinal pigment epithelium contributes to zebrafish optic cup morphogenesis

    Tania Moreno-Mármol et al.
    Retinal pigment epithelium flattening is an efficient solution adopted by the fast-developing zebrafish to enable folding of the eye primordia, which contrasts with the proliferation-based mechanism used by amniotes.
    1. Computational and Systems Biology
    2. Physics of Living Systems

    First-principles model of optimal translation factors stoichiometry

    Jean-Benoît Lalanne, Gene-Wei Li
    A parsimonious biophysical model correctly predicts the conserved expression stoichiometry of core bacterial mRNA translation factors, providing intuitive and quantitative design principles for in vivo pathway construction.
    1. Cancer Biology
    2. Computational and Systems Biology

    Integrated evaluation of telomerase activation and telomere maintenance across cancer cell lines

    Kevin Hu et al.
    Comprehensive analysis of telomere maintenance from transcriptomic, epigenetic, and loss-of-function profiles of cancer cell lines elucidates features of telomere regulation in cancer.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Evolutionary dynamics of circular RNAs in primates

    Gabriela Santos-Rodriguez et al.
    An analysis of the genomic features that distinguish conserved from species-specific circular RNAs reveals that the expansion of the downstream intron by insertion of retrotransposons stabilizes circular RNAs' production across 30+ millions years of evolution.
    1. Microbiology and Infectious Disease
    2. Physics of Living Systems

    Inhibition of SARS-CoV-2 polymerase by nucleotide analogs from a single-molecule perspective

    Mona Seifert et al.
    High-throughput and ultra-stable magnetic tweezers reveal that Remdesivir induces a long-lived backtrack pause upon incorporation by the coronavirus polymerase, and SARS-CoV-2 is able to evade interferon-induced antiviral ddhCTP.
    1. Neuroscience

    Circadian regulation of vertebrate cone photoreceptor function

    Jingjing Zang et al.
    Circadian expression of cone visual transduction genes and corresponding proteins correlates with circadian changes in photoresponse kinetics and visual behavior, linking circadian gene expression with physiological and behavioral rhythmicity.
    1. Cell Biology

    Ectocytosis prevents accumulation of ciliary cargo in C. elegans sensory neurons

    Adria Razzauti, Patrick Laurent
    Disposal of ciliary proteins via ectosomes budding from cilia tip or cilia base acts as a safeguard mechanism when cilia trafficking functions are impaired.

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