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

    Universal and taxon-specific trends in protein sequences as a function of age

    Jennifer E James et al.
    Ancient protein domains remain shaped by amino acid availability during early life, while young animal proteins are shaped by a need for high intrinsic structural disorder.
    1. Evolutionary Biology

    On the emergence of P-Loop NTPase and Rossmann enzymes from a Beta-Alpha-Beta ancestral fragment

    Liam M Longo et al.
    Analysisof P-loop NTPases and Rossmans, the most ancient and diverse enzyme lineages, suggests their divergence from one ancestral polypeptide.
    1. Evolutionary Biology
    2. Microbiology and Infectious Disease

    Insight into the evolution of microbial metabolism from the deep-branching bacterium, Thermovibrio ammonificans

    Donato Giovannelli et al.
    The genome of Thermovibrio ammonificans encodes ancestral pathways (e.g., hydrogen oxidation) and more recently acquired ones (e.g., nitrate reduction) and a hybrid pathway for CO2 fixation.
    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. Evolutionary Biology
    2. Genetics and Genomics

    A putative origin of the insect chemosensory receptor superfamily in the last common eukaryotic ancestor

    Richard Benton et al.
    Comparative genomics and three-dimensional protein modelling identify homologs of insect chemosensory receptors in unicellular eukaryotes and plants.
    1. Evolutionary Biology
    2. Neuroscience

    Metazoan evolution of glutamate receptors reveals unreported phylogenetic groups and divergent lineage-specific events

    David Ramos-Vicente et al.
    The animal phylogeny of glutamate receptors indicates that vertebrate types do not account for all receptor classes originated during evolution, neither are they the pinnacle of a linear evolutive process.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    A vocabulary of ancient peptides at the origin of folded proteins

    Vikram Alva et al.
    A comparative study of modern proteins identifies 40 fragments that may represent the observable remnants of a primordial RNA-peptide world.
    1. Evolutionary Biology

    The last common ancestor of animals lacked the HIF pathway and respired in low-oxygen environments

    Daniel B Mills et al.
    Sponges and ctenophores lack hypoxia-inducible factors, suggesting that the metazoan last common ancestor could have lived aerobically under severe hypoxia and did not need to regulate its transcription in response to oxygen availability.
    1. Computational and Systems Biology
    2. Evolutionary Biology

    Systematic bacterialization of yeast genes identifies a near-universally swappable pathway

    Aashiq H Kachroo et al.
    Despite billions of years of divergence, a majority of prokaryotic genes can functionally replace their essential eukaryotic counterparts, revealing broad preservation of ancestral functions and identifying heme biosynthesis as a near-universally swappable pathway.
    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.

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