428 results found
    1. Biochemistry and Chemical Biology
    2. Evolutionary Biology

    Ancestral reconstruction reveals mechanisms of ERK regulatory evolution

    Dajun Sang et al.
    Tight regulation of a central developmental kinase cascade evolved through two key mutations.
    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. 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. 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. Biochemistry and Chemical Biology
    2. Evolutionary Biology

    Evolution of multifunctionality through a pleiotropic substitution in the innate immune protein S100A9

    Joseph L Harman et al.
    In the ancestor of mammals, a multifunctional innate immune protein evolved when a mutation enhanced the protein’s pro-inflammatory activity and proteolytic regulation without disrupting the protein’s antimicrobial activity.
    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

    Myoglobin primary structure reveals multiple convergent transitions to semi-aquatic life in the world's smallest mammalian divers

    Kai He et al.
    Ancestral sequence reconstruction of an essential muscle protein involved in oxygen storage and transport accurately tracks secondary aquatic transitions in a speciose clade of insectivorous mammals.
    1. Evolutionary Biology

    Gene family innovation, conservation and loss on the animal stem lineage

    Daniel J Richter et al.
    The genomes of animal progenitors evolved as mosaics of old, new, rearranged, and repurposed protein domains, genes and pathways and paved the way for the origin and evolution of animals.

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