387 results found
    1. Genetics and Genomics

    A non-mosaic transchromosomic mouse model of Down syndrome carrying the long arm of human chromosome 21

    Yasuhiro Kazuki et al.
    TcMAC21 is an appropriate “next gen” mouse model for DS research, and provides a proof of concept of using artificial chromosomes to generate non-mosaic humanized animal models of chromosome disorders.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    The long non-coding RNA Dali is an epigenetic regulator of neural differentiation

    Vladislava Chalei et al.
    Dali regulates transcription of the Pou3f3 locus locally and binds and regulates active promoters in trans by modulating DNA methylation status.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Evolution of gene dosage on the Z-chromosome of schistosome parasites

    Marion A L Picard et al.
    An analysis of gene dosage at the DNA, RNA and protein level yields new insights into the early stages of Z-chromosome dosage compensation in schistosome parasites.
    1. Chromosomes and Gene Expression

    Live-cell imaging reveals enhancer-dependent Sox2 transcription in the absence of enhancer proximity

    Jeffrey M Alexander et al.
    Sox2 transcription is not correlated with spatial proximity of its essential regulatory enhancer in embryonic stem cells, suggesting gene transcription is not limited to periods of direct enhancer-promoter contact.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    A map of human PRDM9 binding provides evidence for novel behaviors of PRDM9 and other zinc-finger proteins in meiosis

    Nicolas Altemose et al.
    In humans, specific sequence features can predict whether meiotic recombination occurs at sites bound by the protein PRDM9, whose DNA-binding zinc-finger domain can unexpectedly bind to gene promoters and to other copies of PRDM9.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Chromocenters: Bundling up DNA

    Susan A Gerbi
    Structures known as chromocenters, comprising satellite DNA and proteins such as D1 or HMGA1, help to contain DNA inside the nucleus between cell divisions.
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    1. Chromosomes and Gene Expression

    DNA Repair: Rad51, friend or foe?

    Sue Mei Tan-Wong, Nick J Proudfoot
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    1. Neuroscience

    Male-predominant galanin mediates androgen-dependent aggressive chases in medaka

    Junpei Yamashita et al.
    In medaka fish, galanin-expressing neurons in the medial preoptic area occur nearly exclusively in males and mediate androgen-dependent male–male aggressive chases.
    1. Genetics and Genomics
    2. Neuroscience

    A single-cell transcriptomic and anatomic atlas of mouse dorsal raphe Pet1 neurons

    Benjamin W Okaty et al.
    Dorsal raphe Pet1 neurons are molecularly heterogeneous, comprising as many as fourteen distinct subtypes that show biased cell body distributions across dorsal raphe subdomains.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Distinct roles for S. cerevisiae H2A copies in recombination and repeat stability, with a role for H2A.1 threonine 126

    Nealia CM House et al.
    Despite differing by only one amino acid in the C-terminal tail, copy 1 of yeast histone 2A has a repair-specific role not shared by copy 2.

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