7,665 results found
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    A mechanism for the extension and unfolding of parallel telomeric G-quadruplexes by human telomerase at single-molecule resolution

    Bishnu P Paudel et al.
    Human telomerase unfolds and extends parallel G-quadruplexes using a unique mechanism involving its RNA template.
    1. Cell Biology
    2. Evolutionary Biology

    Evolution of an ancient protein function involved in organized multicellularity in animals

    Douglas P Anderson et al.
    Experimentally reconstructing the evolution of the molecular complex that animals use to orient the mitotic spindle establishes a simple genetic and physical mechanism for the emergence of a function essential for multicellularity.
    1. Biochemistry and Chemical Biology
    2. Evolutionary Biology

    Protein sequences bound to mineral surfaces persist into deep time

    Beatrice Demarchi et al.
    A chemically unstable ostrich eggshell peptide survives for at least 3.8 million years at the equator, stabilized by strong mineral interactions.
    1. Developmental Biology
    2. Evolutionary Biology

    Secondary ossification center induces and protects growth plate structure

    Meng Xie et al.
    The principle underlying the appearance of the growth plate, an organ responsible for longitudinal growth, has implications for various cartilage pathologies including growth abnormalities in children, trauma and osteoarthritis.
    1. Genetics and Genomics

    Firefly genomes illuminate parallel origins of bioluminescence in beetles

    Timothy R Fallon et al.
    The first genomic view of beetle luciferase evolution indicates evolutionary independence of luciferase between fireflies and click-beetles, and provide valuable datasets which will accelerate the discovery of new biotechnological tools.
    1. Cell Biology

    A bacterial sulfonolipid triggers multicellular development in the closest living relatives of animals

    Rosanna A Alegado et al.
    The development of colonies of cells in choanoflagellates, water-dwelling organisms that feed on bacteria, is triggered by the presence of very low concentrations of a lipid molecule produced by certain types of bacteria.
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    Real-time imaging of Huntingtin aggregates diverting target search and gene transcription

    Li Li et al.
    Live imaging captures dynamics of Huntingtin aggregates plaguing the genome and waylaying target search.
    1. Structural Biology and Molecular Biophysics

    Sequence co-evolution gives 3D contacts and structures of protein complexes

    Thomas A Hopf et al.
    Interactions in protein complexes can be predicted from evolutionary information from genomic sequences.
    1. Immunology and Inflammation
    2. Structural Biology and Molecular Biophysics

    The allosteric modulation of complement C5 by knob domain peptides

    Alex Macpherson et al.
    Structural and functional analysis of a new class of low-molecular-weight antibody fragments, derived from bovine immunoglobulins, reveals their therapeutic potential against C5, a target for refractory inflammatory diseases.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Positively selected modifications in the pore of TbAQP2 allow pentamidine to enter Trypanosoma brucei

    Ali H Alghamdi et al.
    Study of TbAQP2 adaptations and substrate interactions shows how this aquaglyceroporin enables cellular entry of large antimicrobial agents in Trypanosoma brucei.

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