1,202 results found
    1. Computational and Systems Biology
    2. Physics of Living Systems

    First-principles model of optimal translation factors stoichiometry

    Jean-Benoît Lalanne, Gene-Wei Li
    A parsimonious biophysical model correctly predicts the conserved expression stoichiometry of core bacterial mRNA translation factors, providing intuitive and quantitative design principles for in vivo pathway construction.
    1. Genetics and Genomics

    Perturbations in eIF3 subunit stoichiometry alter expression of ribosomal proteins and key components of the MAPK signaling pathways

    Anna Herrmannová, Jan Jelínek ... Leoš Shivaya Valášek
    eIF3, despite being a general translation initiation factor, functions in mRNA-specific regulation, having a profound impact on the synthesis and activation of the MAPK pathway components and ribosomal proteins.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Mechanisms of opening and closing of the bacterial replicative helicase

    Jillian Chase, Andrew Catalano ... David Jeruzalmi
    Analysis of the Escherichia coli DnaB helicase•bacteriophage λ helicase loader (λP) complex provides insights into helicase opening, delivery to the origin and ssDNA entry, and closing in preparation for translocation.
    1. Neuroscience

    AMPAR/TARP stoichiometry differentially modulates channel properties

    Federico Miguez-Cabello, Nuria Sánchez-Fernández ... David Soto
    A variable number of auxiliary subunit molecules (TARPs) accompanying AMPARs have a differential impact on channel behavior showing also striking differences between AMPAR subtypes.
    1. Computational and Systems Biology
    2. Neuroscience

    Suppression of transcriptional drift extends C. elegans lifespan by postponing the onset of mortality

    Sunitha Rangaraju, Gregory M Solis ... Michael Petrascheck
    A transcriptome-based metric for aging reveals a longevity mechanism that specifically prolongs the duration of young adulthood rather than slowing overall aging.
    1. Chromosomes and Gene Expression

    Transcription factor clusters regulate genes in eukaryotic cells

    Adam JM Wollman, Sviatlana Shashkova ... Mark C Leake
    Transcription factors form clusters independently of the presence of DNA, which regulate target genes as opposed to individual monomers, addressing a longstanding question of how transcription factors can find gene targets so quickly.
    1. Biochemistry and Chemical Biology

    Syntaxin-6 delays prion protein fibril formation and prolongs the presence of toxic aggregation intermediates

    Daljit Sangar, Elizabeth Hill ... Jan Bieschke
    A new native prion protein aggregation assay shows that syntaxin-6, a risk factor for sporadic Creutzfeldt–Jakob disease, delays prion protein fibril formation and prolongs the presence of toxic aggregation intermediates.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    An engineered monomer binding-protein for α-synuclein efficiently inhibits the proliferation of amyloid fibrils

    Emil Dandanell Agerschou, Patrick Flagmeier ... Alexander K Buell
    The high affinity α-synuclein-monomer binder AS69 converts into a strong sub-stoichiometric inhibitor of nucleation processes upon formation of the AS69-α-synuclein complex, achieving reduced aggregation in vitro and in vivo.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Unnatural amino acid photo-crosslinking of the IKs channel complex demonstrates a KCNE1:KCNQ1 stoichiometry of up to 4:4

    Christopher I Murray, Maartje Westhoff ... David Fedida
    The IKs potassium channel complex displays functional flexibility that depends on the ratio of its constituent KCNQ1 and KCNE1 protein subunits.
    1. Biochemistry and Chemical Biology
    2. Neuroscience

    Engineering paralog-specific PSD-95 recombinant binders as minimally interfering multimodal probes for advanced imaging techniques

    Charlotte Rimbault, Christelle Breillat ... Matthieu Sainlos
    Engineering new intrabodies allows to develop selective and non-interfering tools for the visualization of endogenous PSD-95 with advanced imaging techniques.

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