603 results found
    1. Evolutionary Biology
    2. Genetics and Genomics

    Mutations that improve efficiency of a weak-link enzyme are rare compared to adaptive mutations elsewhere in the genome

    Andrew B Morgenthaler et al.
    Mutations elsewhere in the genome play critical roles in improving fitness during amplification and divergence of a gene encoding a weak-link enzyme whose inefficiency limits growth rate.
    1. Computational and Systems Biology
    2. Immunology and Inflammation

    Deep generative models for T cell receptor protein sequences

    Kristian Davidsen et al.
    Deep learning improves estimation of T cell receptor cohort frequencies and learns the rules of VDJ recombination, potentially making it helpful for vaccine design.
    1. Evolutionary Biology
    2. Plant Biology

    Asymmetrical diversification of the receptor-ligand interaction controlling self-incompatibility in Arabidopsis

    Maxime Chantreau et al.
    In-planta ancestral protein resurrection of the female determinant of self-incompatibility specificity in Arabidopsis halleri demonstrates that two allelic variants currently segregating as distinct receptor-ligand combinations diverged through an asymmetrical process.
    1. Evolutionary Biology
    2. Structural Biology and Molecular Biophysics

    Evolutionary pathways of repeat protein topology in bacterial outer membrane proteins

    Meghan Whitney Franklin et al.
    There is a strand-based evolutionary mechanism for the diversification of outer membrane proteins, which has implications for how repeat proteins are created and for how outer membrane proteins fold.
    1. Neuroscience

    A Cambrian origin for vertebrate rods

    Sabrina Asteriti et al.
    Several key functional features of jawed vertebrate rods are also present in lamprey photoreceptors, indicating that our Cambrian ancestors possessed dim light vision.
    1. Computational and Systems Biology
    2. Immunology and Inflammation

    Stimulation strength controls the rate of initiation but not the molecular organisation of TCR-induced signalling

    Claire Y Ma et al.
    The strength of TCR signalling determines the rate at which cells initiate a tightly coordinated signalling programme, without altering its organization.
    1. Ecology
    2. Microbiology and Infectious Disease

    Freshwater monitoring by nanopore sequencing

    Lara Urban et al.
    From now on, nanopore metagenomics can be used to monitor aquatic environments with high spatiotemporal resolution, by use of a benchmarked, standardised and cost-effective workflow.
    1. Computational and Systems Biology
    2. Microbiology and Infectious Disease

    Multiple sources of slow activity fluctuations in a bacterial chemosensory network

    Remy Colin et al.
    Single-cell FRET measurements reveal large temporal activity fluctuations within this signaling pathway in Escherichia coli, caused by stochasticity of receptor methylation combined with allosteric interactions and slow rearrangements within receptor clusters.
    1. Cell Biology

    Selective dephosphorylation by PP2A-B55 directs the meiosis I-meiosis II transition in oocytes

    S Zachary Swartz et al.
    Time-course phosphoproteomics reveals that selective dephosphorylation is critical for directing the MI/MII transition and that, through its inherent phospho-threonine preference, PP2A-B55 imposes specific phosphoregulated behaviors that distinguish the two meiotic divisions.
    1. Genetics and Genomics

    Variable prediction accuracy of polygenic scores within an ancestry group

    Hakhamanesh Mostafavi et al.
    The prediction accuracies of polygenic scores in humans vary depending on the characteristics of the samples, as well as based on the study design, within a single ancestry group.

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