234 results found
    1. Chromosomes and Gene Expression
    2. Microbiology and Infectious Disease

    ATRX promotes maintenance of herpes simplex virus heterochromatin during chromatin stress

    Joseph M Cabral et al.
    Epigenetic restriction of herpes simplex virus occurs in a biphasic manner, in which ATRX maintains viral heterochromatin after an initial phase of chromatin deposition.
    1. Cell Biology

    ATR expands embryonic stem cell fate potential in response to replication stress

    Sina Atashpaz et al.
    ATR protects stem cell genomes by activating a transcriptional response mediated by totipotency genes, conferring trophoblast differentiation potential, the derepression of which in somatic cells might favour cancer features emergence.
    1. Developmental Biology

    Negative regulation of G2-M by ATR (mei-41)/Chk1(Grapes) facilitates tracheoblast growth and tracheal hypertrophy in Drosophila

    Amrutha Kizhedathu et al.
    ATR/Chk1 contribute to G2 arrest in developing tracheoblasts, and arrest in G2 facilitates cellular and hypertrophic organ growth.
    1. Chromosomes and Gene Expression

    Distinct roles of ATM and ATR in the regulation of ARP8 phosphorylation to prevent chromosome translocations

    Jiying Sun et al.
    ATM plays an important role in maintaining the fidelity of DNA repair through the regulation of ARP8 phosphorylation to prevent the chromosome abnormality.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    ATR/Mec1 prevents lethal meiotic recombination initiation on partially replicated chromosomes in budding yeast

    Hannah G Blitzblau, Andreas Hochwagen
    During meiosis, budding yeast use a checkpoint involving the protein Mec1 to prevent the formation of double-strand breaks in DNA that has not completed replication.
    1. Ecology
    2. Plant Biology

    Pollination: Solar flower power

    Julia Bing, Danny Kessler
    Bumblebees use invisible temperature patterns on flowers to make foraging decisions.
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    1. Plant Biology

    Plant Stress: Hitting pause on the cell cycle

    Thomas Eekhout, Lieven De Veylder
    Two recently discovered transcription factors stop cells from dividing when plants face extreme heat and DNA damage.
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    1. Neuroscience

    Whole-organism behavioral profiling reveals a role for dopamine in state-dependent motor program coupling in C. elegans

    Nathan Cermak et al.
    Simultaneous quantification of each of the main motor programs in the roundworm C. elegans yields new insights into the neural mechanisms that coordinate animal behavior.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Cretaceous dinosaur bone contains recent organic material and provides an environment conducive to microbial communities

    Evan T Saitta et al.
    Subterranean fossil bone hosts a living microbiome different from the surrounding sediment without evidence of original protein preservation.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structures of S-OPA1 reveal its interactions with membrane and changes upon nucleotide binding

    Danyang Zhang et al.
    GTP binding induces rearrangement of S-OPA1 assembly on membrane and thus triggers membrane remodeling with reduced curvature.

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