5,098 results found
    1. Computational and Systems Biology
    2. Chromosomes and Gene Expression

    Natural changes in light interact with circadian regulation at promoters to control gene expression in cyanobacteria

    Joseph Robert Piechura et al.
    Cyanobacteria cope with both predictable day/night changes and natural fluctuations in light during the day by adjusting the expression dynamics of circadian-clock-controlled genes via a network of transcriptional regulators.
    1. Genetics and Genomics

    Single cell transcriptional signatures of the human placenta in term and preterm parturition

    Roger Pique-Regi et al.
    Parturition gene regulation across multiple cell-types and placental compartments is deciphered at single cell resolution, highlighting the common role of the NFKB pathway in both term and preterm birth.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Lateral interactions between protofilaments of the bacterial tubulin homolog FtsZ are essential for cell division

    Fenghui Guan et al.
    Structural and functional approaches unambiguously revealed physiologically relevant lateral interactions between FtsZ protofilaments.
    1. Cell Biology
    2. Immunology and Inflammation

    Transient protein accumulation at the center of the T cell antigen-presenting cell interface drives efficient IL-2 secretion

    Danielle J Clark et al.
    A membrane-associated, supramolecular protein complex with dynamically changing components, the central supramolecular activation cluster, regulates the generation of the T cell effector cytokine IL-2 depending on its composition.
    1. Computational and Systems Biology
    2. Ecology

    TRex, a fast multi-animal tracking system with markerless identification, and 2D estimation of posture and visual fields

    Tristan Walter, Iain D Couzin
    Being fast, memory efficient, easy to use, and with powerful integrated tools, TRex will lower barriers of entry into, and enable more ambitious approaches to, the quantitative study of behavior.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    The Cas4-Cas1-Cas2 complex mediates precise prespacer processing during CRISPR adaptation

    Hayun Lee et al.
    During CRISPR adaptation, Cas4 forms a ternary complex with the Cas1-Cas2 spacer integration complex, an interaction that coordinates substrate hand-off following precise, PAM-dependent prespacer processing prior to integration.
    1. Chromosomes and Gene Expression
    2. Structural Biology and Molecular Biophysics

    ParB dynamics and the critical role of the CTD in DNA condensation unveiled by combined force-fluorescence measurements

    Julene Madariaga-Marcos et al.
    A single-molecule biophysical approach reveals that the C-terminal domain of ParB blocks ParB network formation by heterodimerization with the full-length protein, which remains bound to the DNA.
    1. Physics of Living Systems

    Mechanical instability and interfacial energy drive biofilm morphogenesis

    Jing Yan et al.
    Mechanical instabilities are shown to underlie the development of bacterial biofilm morphology, suggesting an ancient origin for mechano-morphogenesis, which is known to drive developmental processes in tissues in higher organisms.
    1. Cell Biology
    2. Developmental Biology

    Fibronectin is a smart adhesive that both influences and responds to the mechanics of early spinal column development

    Emilie Guillon et al.
    A fibronectin matrix constantly remodels to the area of highest mechanical stress, and the resulting fibronectin-mediated inter-tissue adhesion impedes neural tube convergence.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Evolutionary transcriptomics implicates HAND2 in the origins of implantation and regulation of gestation length

    Mirna Marinić et al.
    The transcription factor HAND2 evolved uterine expression during the origins of pregnancy and may be important for maternal-fetal immune signaling and parturition.

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