24 results found
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Importin-β modulates the permeability of the nuclear pore complex in a Ran-dependent manner

    Alan R Lowe et al.
    The Ran GTPase plays a role in defining the physical properties of the nuclear pore complex transport channel by remodeling the binding interactions of importin-β with the nucleoporin Nup153 at the nuclear face of the pore.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Dynamics of the IFT machinery at the ciliary tip

    Alexander Chien et al.
    During intraflagellar transport (IFT), kinesin-II dissociates from IFT trains at the flagellar tip and its diffusion in flagella serves as a negative feedback mechanism that facilitates flagellar length control in Chlamydomonas.
    1. Cell Biology
    2. Plant Biology

    Delivery of endocytosed proteins to the cell–division plane requires change of pathway from recycling to secretion

    Sandra Richter et al.
    The same membrane trafficking cargo can change pathways mediated by different members of ARF-GEF family of vesicle formation regulators.
    1. Structural Biology and Molecular Biophysics

    rsEGFP2 enables fast RESOLFT nanoscopy of living cells

    Tim Grotjohann et al.
    The discovery of a fluorescent protein that can be rapidly switched between long-lived ‘on’ and ‘off’ states will lead to a new generation of super-resolution imaging experiments on living cells.
    1. Neuroscience

    Inhibition of PIP4Kγ ameliorates the pathological effects of mutant huntingtin protein

    Ismael Al-Ramahi et al.
    This work validates PIP4K gamma as pharmacological target to ameliorate Huntington's disease.
    1. Cell Biology

    Super-resolution microscopy reveals majorly mono- and dimeric presenilin1/γ-secretase at the cell surface

    Abril Angélica Escamilla-Ayala et al.
    Super-resolution microscopy sets a new strategy to comprehend the membrane organization of γ-secretase at single complex resolution identifying nanodomain associations and its diffusion in situ in the living membrane.
    1. Chromosomes and Gene Expression

    Transcription factor clusters regulate genes in eukaryotic cells

    Adam JM Wollman et al.
    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. Chromosomes and Gene Expression
    2. Developmental Biology

    Dynamic multifactor hubs interact transiently with sites of active transcription in Drosophila embryos

    Mustafa Mir et al.
    The probability of transcription factors binding to their target sites is choreographed through the formation of dynamic multi-protein hubs that transiently interact with actively transcribing genes.
    1. Structural Biology and Molecular Biophysics
    2. Plant Biology

    Kinetics of the LOV domain of ZEITLUPE determine its circadian function in Arabidopsis

    Ashutosh Pudasaini et al.
    In the plant circadian clock photoreceptor ZEITLUPE, evolutionarily selected residues distinguish photocycle kinetics and allosteric signal transduction pathways to permit proper circadian timing.
    1. Developmental Biology
    2. Physics of Living Systems

    Size-dependent patterns of cell proliferation and migration in freely-expanding epithelia

    Matthew A Heinrich et al.
    Epithelia exhibit size-dependent growth dynamics caused by a decoupling between boundary and bulk cellular dynamics that enable robust expansion and drive cell cycling, collective migration, and tissue-spanning vortices.

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