301 results found
    1. Computational and Systems Biology
    2. Evolutionary Biology

    ASPEN, a methodology for reconstructing protein evolution with improved accuracy using ensemble models

    Roman Sloutsky, Kristen M Naegle
    Using different sets of input sequences to evolutionary reconstruction algorithms results in the exploration of many possible models, the intergration over which produces significantly more accurate models.
    1. Biochemistry and Chemical Biology

    Evolution of (p)ppGpp-HPRT regulation through diversification of an allosteric oligomeric interaction

    Brent W Anderson et al.
    The signaling ligand (p)ppGpp regulates the enzyme HPRT across species by binding to a novel class of conserved motif, yet its specificity is allosterically altered through evolution of enzyme oligomerization.
    1. Ecology
    2. Evolutionary Biology

    Diverse deep-sea anglerfishes share a genetically reduced luminous symbiont that is acquired from the environment

    Lydia J Baker et al.
    Environmental transmission is atypical of symbionts that have undergone genome degradation, yet genetically reduced deep-sea anglerfish symbionts likely persist in the deep sea biome in search of a new host.
    1. Cell Biology
    2. Developmental Biology

    Casein kinase 1 family proteins promote Slimb-dependent Expanded degradation

    Alexander D Fulford et al.
    The tissue growth controlling Hippo signalling pathway is modulated by the activity of the Casein Kinase 1 family, which regulates the protein stability of the upstream Hippo pathway component Expanded.
    1. Developmental Biology
    2. Genetics and Genomics

    Extensive intraspecies cryptic variation in an ancient embryonic gene regulatory network

    Yamila N Torres Cleuren et al.
    Quantitative genetic analyses reveal remarkably broad genetic variation underlies the requirement for two critical regulatory inputs into a core embryonic gene regulatory network within one animal species.
    1. Evolutionary Biology

    Evolution of Yin and Yang isoforms of a chromatin remodeling subunit precedes the creation of two genes

    Wen Xu et al.
    Gene sharing through different isoforms can precede the formation of independent genes.
    1. Evolutionary Biology

    Molecular function limits divergent protein evolution on planetary timescales

    Mariam M Konaté et al.
    Orthologous proteins that continuously maintain the same molecular function do not usually diverge beyond a certain level of sequence and structural similarity.
    1. Neuroscience

    Evolution of neuronal anatomy and circuitry in two highly divergent nematode species

    Ray L Hong et al.
    The substrate for evolutionary divergence does not lie in changes in neuronal cell number or targeting, but rather in sensory perception and synaptic partner choice within invariant, prepatterned neuronal processes.
    1. Evolutionary Biology
    2. Plant Biology

    Natural selection and repeated patterns of molecular evolution following allopatric divergence

    Yibo Dong et al.
    The genomic architecture of allopatric species is a mosaic of many conserved genes and a few adaptive ones, reflecting balance between conservation of ancestral functions and evolution of new features.
    1. Microbiology and Infectious Disease

    Functional metagenomics-guided discovery of potent Cas9 inhibitors in the human microbiome

    Kevin J Forsberg et al.
    A high-throughput, activity-based selection identifies many phage-derived inhibitors of Cas9 from human fecal and oral metagenomes, with at least one inhibitor acting via a novel mechanism.

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