4,402 results found
    1. Cell Biology

    A new family of StART domain proteins at membrane contact sites has a role in ER-PM sterol transport

    Alberto T Gatta et al.
    A new family of sterol-specific lipid transfer proteins has been found that anchors in the endoplasmic reticulum; some of these proteins stretch across membrane contacts and mediate sterol traffic from the plasma membrane.
    1. Cell Biology

    Proteostasis collapse, a hallmark of aging, hinders the chaperone-Start network and arrests cells in G1

    David F Moreno et al.
    Cells accumulate damaged proteins during aging and, by compromising the function of chaperones in folding newly synthesized G1 cyclins, proteostasis breakdown inhibits cell-cycle entry and drives yeast cells into senescence.
    1. Cell Biology

    Homeostatic control of START through negative feedback between Cln3-Cdk1 and Rim15/Greatwall kinase in budding yeast

    Nicolas Talarek et al.
    Inhibition of phosphatases by kinases develops Whi5 phosphorylation and cell cycle function in low cyclin-dependent kinase activity.
    1. Immunology and Inflammation

    α-actinin accounts for the bioactivity of actin preparations in inducing STAT target genes in Drosophila melanogaster

    Oliver Gordon et al.
    The Drosophila response to injection of alpha-actinin reinforces the notion that exposure of cytoskeletal components acts as a sign of cell damage conserved throughout metazoan evolution.
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    The mechanism of variability in transcription start site selection

    Libing Yu et al.
    Variability in bacterial transcription start site selection involves DNA “scrunching” and “anti-scrunching,” which may represent a general mechanism for start site selection in all organisms.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Interface between 40S exit channel protein uS7/Rps5 and eIF2α modulates start codon recognition in vivo

    Jyothsna Visweswaraiah, Alan G Hinnebusch
    The small subunit ribosomal protein uS7/Rps5 interacts with translation initiation factor eIF2α to stabilize first the open, and then the closed conformation of the pre-initiation complex to promote accurate start codon selection in vivo.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Quality control of transcription start site selection by nonsense-mediated-mRNA decay

    Christophe Malabat et al.
    RNA polymerase II generates numerous transcript isoforms, including transcripts initiating downstream of the START codon, that are efficiently degraded by the nonsense-mediated mRNA decay pathway.
  1. Peer Review: Consultative review is worth the wait

    Stuart RF King
    Editors, reviewers and authors share their experiences of consultative peer review at eLife.
    1. Neuroscience

    Catecholaminergic challenge uncovers distinct Pavlovian and instrumental mechanisms of motivated (in)action

    Jennifer C Swart et al.
    Motivational coupling of action to reward and inhibition to punishment is subserved by dissociable learning and choice processes, and is modulated by dopamine/noradrenaline transporter blockade.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Population scale mapping of transposable element diversity reveals links to gene regulation and epigenomic variation

    Tim Stuart et al.
    Fine mapping of transposable element presence/absence variation amongst 216 Arabidopsis strains uncovers widespread novel genetic diversity that underlies differences in transcription and DNA methylation patterns.

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