185 results found
    1. Evolutionary Biology
    2. Microbiology and Infectious Disease

    Co-option of an endogenous retrovirus envelope for host defense in hominid ancestors

    Daniel Blanco-Melo et al.
    The reconstitution of a functional envelope protein from an extinct hominid retrovirus reveals its receptor and an ancient host defense that may have led to the extinction of the virus.
    1. Evolutionary Biology
    2. Microbiology and Infectious Disease

    Tracking interspecies transmission and long-term evolution of an ancient retrovirus using the genomes of modern mammals

    William E Diehl et al.
    Endogenous virus sequences in the genomes of modern mammals reveal the global spread of an ancient virus lineage, including frequent interspecies transmission, adaptation, and emergence spanning several million years of mammalian evolution
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Regulatory Networks: Reality check for transposon enhancers

    Julie Brind'Amour, Dixie L Mager
    Hundreds of retrovirus-like sequences have features that suggest they might be gene enhancers, but only a small fraction displays gene-regulating activity in experiments on mouse stem cells.
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    1. Developmental Biology
    2. Evolutionary Biology

    Domestic chickens activate a piRNA defense against avian leukosis virus

    Yu Huining Sun et al.
    To protect the germ line genome, chickens acquire new small RNA-based immune defense in response to recently endogenized retroviruses by turning a truncated provirus into a weapon.
    1. Microbiology and Infectious Disease

    The human leukemia virus HTLV-1 alters the structure and transcription of host chromatin in cis

    Anat Melamed et al.
    The human leukemia virus HTLV-1 causes abnormal chromatin looping in tens of thousands of infected T cell clones in each host, and abnormal host transcription both flanking the integrated provirus and at distant loci in cis.
    1. Developmental Biology

    Stella modulates transcriptional and endogenous retrovirus programs during maternal-to-zygotic transition

    Yun Huang et al.
    Soon after fertilisation, a critical portion of the embryonic genome is switched on through the actions of maternally inherited Stella, in part through controlling the activation of transposable elements.
    1. Evolutionary Biology
    2. Microbiology and Infectious Disease

    Virology: Pushing the envelope

    Julia H Wildschutte, John M Coffin
    Primates have co-opted a viral gene to produce an envelope protein that prevents infection by the HERV-T virus and likely contributed to the extinction of this virus.
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    1. Ecology
    2. Epidemiology and Global Health

    The global distribution of the arbovirus vectors Aedes aegypti and Ae. albopictus

    Moritz UG Kraemer et al.
    The limits to the global distribution of the mosquitoes that transmit dengue and chikungunya have been predicted using a species distribution modelling approach.
    1. Ecology
    2. Microbiology and Infectious Disease

    Endangered wild salmon infected by newly discovered viruses

    Gideon J Mordecai et al.
    Newly discovered viruses in dead and dying farmed Chinook salmon are widely distributed in threatened wild Chinook and sockeye salmon populations.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Polypyrimidine tract binding protein 1 protects mRNAs from recognition by the nonsense-mediated mRNA decay pathway

    Zhiyun Ge et al.
    The RNA-binding protein PTBP1 is recruited to sites near stop codons in retroviral and human mRNAs, shielding them from detection and degradation by the nonsense-mediated mRNA decay pathway.

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