237 results found
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Tracing a protein’s folding pathway over evolutionary time using ancestral sequence reconstruction and hydrogen exchange

    Shion An Lim et al.
    Pulsed-labeling hydrogen exchange on the ribonuclease H family show that the major folding intermediate is conserved over three billion years of evolution, but the path leading to this intermediate varies.
    1. Biochemistry and Chemical Biology
    2. Evolutionary Biology

    Ancestral resurrection reveals evolutionary mechanisms of kinase plasticity

    Conor J Howard et al.
    Reconstructing ancestral enzymes has revealed that a switch in kinase substrate preference evolved via an expanded specificity intermediate that is tolerated in vivo, thus providing a path for kinase diversification.
    1. Structural Biology and Molecular Biophysics
    2. Evolutionary Biology

    An atomic-resolution view of neofunctionalization in the evolution of apicomplexan lactate dehydrogenases

    Jeffrey I Boucher et al.
    The convergent evolution of unusually strict substrate specificity in apicomplexan LDHs arose by classic neofunctionalization of a duplicated MDH gene via few mutations of large effect.
    1. Genetics and Genomics

    Ancient mechanisms for the evolution of the bicoid homeodomain's function in fly development

    Qinwen Liu et al.
    Transgenic animals carrying reconstructed ancestral alleles reveal how two ancient mutations allowed a regulatory protein to evolve a controlling role in embryonic development in flies.
    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. Ecology
    2. Evolutionary Biology

    The Natural History of Model Organisms: Advancing biology through a deeper understanding of zebrafish ecology and evolution

    David M Parichy
    The zebrafish is a premier model organism for biomedical research, with a rich array of tools and genomic resources, and combining these with a fuller appreciation of wild zebrafish ecology could greatly extend its utility in biological research.
    1. Ecology
    2. Evolutionary Biology

    Evolutionary Morphology: One size does not fit all

    Diethard Tautz
    Insight
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    1. Ecology
    2. Chromosomes and Gene Expression

    Emerging Technology: Concerning RNA-guided gene drives for the alteration of wild populations

    Kevin M Esvelt et al.
    Combining CRISPR/Cas9 genome editing with gene drives may enable scientists to reversibly edit the genomes of diverse wild populations, an advance that could help eliminate diseases, support sustainable agriculture, and control invasive species.
    1. Developmental Biology

    Cell-type heterogeneity in the early zebrafish olfactory epithelium is generated from progenitors within preplacodal ectoderm

    Raphaël Aguillon et al.
    Several neuronal subtypes found in the early zebrafish olfactory placode are not derived from the neural crest, as previously thought, but from the preplacodal ectoderm.
    1. Chromosomes and Gene Expression
    2. Evolutionary Biology

    Cis-regulatory evolution integrated the Bric-à-brac transcription factors into a novel fruit fly gene regulatory network

    Maxwell J Roeske et al.
    The conserved biochemical activity of the duplicate Bab transcription factors were integrated into the regulatory hierarchy of an evolving gene regulatory network by binding site gains in a target gene's cis-regulatory region.

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