73 results found
    1. Evolutionary Biology

    Novel multicellular prokaryote discovered next to an underground stream

    Kouhei Mizuno, Mais Maree ... Kazuya Morikawa
    A new bacterium isolated from an underground stream shows a novel multicellularity by self-organizing its filamentous cells like a liquid crystal and accommodating daughter cells in a sequential manner, which would be a new extant model of prokaryotic multicellularity.
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    Highly regulated, diversifying NTP-dependent biological conflict systems with implications for the emergence of multicellularity

    Gurmeet Kaur, A Maxwell Burroughs ... L Aravind
    Multicellular and socially aggregating prokaryotes contain previously undescribed, chaperone-based systems predicted to mediate defensive biological conflicts, several components of which are thematically similar antecedents of eukaryotic apoptosis pathways.
    1. Evolutionary Biology

    Cave Bacteria: Illuminating a new path to multicellularity

    Sayantan Datta, William C Ratcliff
    A new species of multicellular bacteria broadens our understanding of prokaryotic multicellularity and provides insight into how multicellular organisms arise.
    Version of Record
    Insight
    1. Computational and Systems Biology
    2. Immunology and Inflammation

    Bacterial death and TRADD-N domains help define novel apoptosis and immunity mechanisms shared by prokaryotes and metazoans

    Gurmeet Kaur, Lakshminarayan M Iyer ... L Aravind
    Prokaryotic TRADD-N and Death-like adaptor domains in diverse predicted apoptosis and immune systems from multicellular prokaryotes and metazoans indicate the common origin of key apoptosis mechanisms required for the stabilization of multicellularity.
    1. Biochemistry and Chemical Biology

    Evolution of an intricate J-protein network driving protein disaggregation in eukaryotes

    Nadinath B Nillegoda, Antonia Stank ... Bernd Bukau
    The emergence of complementary electrostatic potentials after the prokaryotic-to-eukaryotic split drives physical and functional cooperation between canonical class A and class B J-proteins to boost protein disaggregation.
    1. Evolutionary Biology

    Membranes, energetics, and evolution across the prokaryote-eukaryote divide

    Michael Lynch, Georgi K Marinov
    The common view that the mitochondrion endowed eukaryotes with a boost in bioenergetic capacity above that in prokaryotes is inconsistent with a diversity of cellular features.
    1. Ecology
    2. Genetics and Genomics

    Genomic evidence for global ocean plankton biogeography shaped by large-scale current systems

    Daniel J Richter, Romain Watteaux ... Olivier Jaillon
    Analysis of genomic DNA composition of surface plankton communities reveals a stable, ocean basin-scale plankton biogeography that emerges from the intertwined effects of environmental variations and currents.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    X-ray structure and enzymatic study of a bacterial NADPH oxidase highlight the activation mechanism of eukaryotic NOX

    Isabelle Petit-Hartlein, Annelise Vermot ... Franck Fieschi
    Detailed molecular characterization of a constitutively active bacterial NADPH oxidase (NOX) provides clues to the activation mechanism required to trigger electron transfer and reactive oxygen species (ROS) production in tightly regulated eukaryotic NOX.
    1. Biochemistry and Chemical Biology

    Global analysis of cytosine and adenine DNA modifications across the tree of life

    Sreejith Jayasree Varma, Enrica Calvani ... Markus Ralser
    By using mass spectrometry, we determined the global levels of various DNA modifications across species and tissues.
    1. Neuroscience

    Point of View: Predictive regulation and human design

    Peter Sterling
    Why does the human regulatory system, which evolution tuned for small satisfactions, now constantly demand 'more'?

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