375 results found
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Archaeal TFEα/β is a hybrid of TFIIE and the RNA polymerase III subcomplex hRPC62/39

    Fabian Blombach et al.
    An archaeal basal transcription factor containing an iron-sulphur cluster sheds light on the evolution of transcription machineries in archaea and eukaryotes.
    1. Chromosomes and Gene Expression
    2. Evolutionary Biology

    The DNA-binding protein HTa from Thermoplasma acidophilum is an archaeal histone analog

    Antoine Hocher et al.
    In Thermoplasma acidophilum, an archaeon without histones, a DNA-binding protein acquired from bacteria via horizontal gene transfer mediates histone-like chromatin architecture.
    1. Cell Biology
    2. Evolutionary Biology

    Chromatin is an ancient innovation conserved between Archaea and Eukarya

    Ron Ammar et al.
    Similarities in the way that nucleosomes are organized into chromatin in archaea and eukaryotes suggest that chromatin might have been involved in gene regulation before its role in DNA packaging evolved.
    1. Computational and Systems Biology
    2. Chromosomes and Gene Expression

    Avoidance of stochastic RNA interactions can be harnessed to control protein expression levels in bacteria and archaea

    Sinan Uğur Umu et al.
    Stochastic mRNA and non-coding RNA hybridisation has a major impact on protein expression.
    1. Chromosomes and Gene Expression
    2. Evolutionary Biology

    Chromatinization of Escherichia coli with archaeal histones

    Maria Rojec et al.
    Escherichia coli is surprisingly tolerant to chromatinization by archaeal histones, suggesting that histones can become established as ubiquitous chromatin proteins without interfering critically with some key DNA-templated processes.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    The interplay at the replisome mitigates the impact of oxidative damage on the genetic integrity of hyperthermophilic Archaea

    Tom Killelea et al.
    An investigation into 8-oxodeoxguanosine bypass by archaeal DNA polymerases.
    1. Microbiology and Infectious Disease

    Post-translational thioamidation of methyl-coenzyme M reductase, a key enzyme in methanogenic and methanotrophic Archaea

    Dipti D Nayak et al.
    Post-translational installation of thioglycine in methyl-coenzyme M reductase in the methanogenic archaeon Methanosarcina acetivorans is mediated by the tfuA-ycaO locus and stabilizes the protein secondary structure near the active site.
    1. Structural Biology and Molecular Biophysics

    Structure and in situ organisation of the Pyrococcus furiosus archaellum machinery

    Bertram Daum et al.
    Using both electron cryo-tomography and helical reconstruction, the first structure of the entire archaellum machinery with an assembled filament has been determined, providing the structural basis for our understanding of archaeal motility.
    1. Biochemistry and Chemical Biology

    Circularization restores signal recognition particle RNA functionality in Thermoproteus

    André Plagens et al.
    Archaea can contain permuted versions of the universal signal recognition particle RNA, which require a moonlighting activity of the tRNA splicing machinery to generate functional circular RNAs.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Haplotypes spanning centromeric regions reveal persistence of large blocks of archaic DNA

    Sasha A Langley et al.
    Genomic polymorphism across centromeric regions of humans is organized into large-scale haplotypes with great diversity, including entire Neanderthal centromeres.

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