43 results found
    1. Cell Biology

    Robustness of the microtubule network self-organization in epithelia

    Aleksandra Z Płochocka et al.
    Computational, theoretical, and in vivo studies reveal that in epithelia the self-organization of apical microtubules is robustly determined by cell geometry and minus-end distribution, not organism environment or genetics.
    1. Cell Biology
    2. Physics of Living Systems

    A physical mechanism of TANGO1-mediated bulky cargo export

    Ishier Raote et al.
    TANGO1 functions as a linactant filament to stabilize shallow COPII-coated buds, and after which membrane tension regulation, possibly mediated by TANGO1-controlled membrane fusion, facilitates bud elongation for procollagen export.
    1. Biochemistry and Chemical Biology

    Transport of DNA within cohesin involves clamping on top of engaged heads by Scc2 and entrapment within the ring by Scc3

    James E Collier et al.
    Rigorous biochemical and structural analyses reveal the precise topology of cohesin's association with DNA and suggest a mechanism for how DNA is transported inside the ring.
    1. Chromosomes and Gene Expression
    2. Physics of Living Systems

    Chromosome organization by one-sided and two-sided loop extrusion

    Edward J Banigan et al.
    Seemingly contradictory findings of single-molecule and in vivo experiments on a major mechanism of chromosome organization are reconciled by computationally investigating mechanisms of loop extrusion that are consistent with both.
    1. Neuroscience

    Synergistic actions of v-SNARE transmembrane domains and membrane-curvature modifying lipids in neurotransmitter release

    Madhurima Dhara et al.
    Naturally-occurring v-SNARE TMD variants differentially regulate fusion pore dynamics and cooperate with phospholipids in supporting membrane curvature at the fusion pore neck.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structure of the potassium-chloride cotransporter KCC4 in lipid nanodiscs

    Michelle S Reid et al.
    The structure of the potassium-chloride cotransporter KCC4 provides insight into the basis of ion specificity, transport stoichiometry, and activity regulation for a broadly physiologically and clinically important transporter family.
    1. Chromosomes and Gene Expression

    Telomere dysfunction cooperates with epigenetic alterations to impair murine embryonic stem cell fate commitment

    Mélanie Criqui et al.
    Cell lineage tracing and biochemical analysis of cell fate during murine stem cell differentiation demonstrates a specific cooperativity between perturbations in histone methylation and eroded telomeres that destabilize cell differentiation.
    1. Computational and Systems Biology

    A molecular view on the escape of lipoplexed DNA from the endosome

    Bart MH Bruininks et al.
    The molecular insight in lipoplex transfection mechanisms helps in the development of efficient and affordable gene delivery systems.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Cryo electron tomography with volta phase plate reveals novel structural foundations of the 96-nm axonemal repeat in the pathogen Trypanosoma brucei

    Simon Imhof et al.
    Cryo electron tomography provides the first high-resolution 3D axoneme structure from any pathogenic organism, revealing novel structures that support the unique motility of these pathogens through host tissues.
    1. Structural Biology and Molecular Biophysics

    HIV restriction factor APOBEC3G binds in multiple steps and conformations to search and deaminate single-stranded DNA

    Michael Morse et al.
    APOBEC3G, an anti-viral protein with the capability to inhibit HiV-1 infectivity, binds single stranded DNA in multiple physical conformations, enabling complex interactions that allow APOBEC3G to perform multiple diverse functions.

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