1,731 results found
    1. Chromosomes and Gene Expression

    Cohesin architecture and clustering in vivo

    Siheng Xiang, Douglas Koshland
    Cohesin adopts a flexible butterfly conformation in vivo and forms spatial and temporal regulated ordered clusters to maintain cohesion and condensation.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    HP1 proteins compact DNA into mechanically and positionally stable phase separated domains

    Madeline M Keenen et al.
    Heterochromatin proteins compartmentalize DNA into compact structures resistant to mechanical disruption but susceptible to competitive dissolution.
    1. Neuroscience

    α-Synuclein plasma membrane localization correlates with cellular phosphatidylinositol polyphosphate levels

    Reeba Susan Jacob et al.
    Plasma membrane clusters of the Parkinson's disease protein α-synuclein colocalize with negatively charged phospholipids involved in endocytosis and exocytosis.
    1. Cell Biology
    2. Developmental Biology

    SUMO is a pervasive regulator of meiosis

    Nikhil R Bhagwat et al.
    Multi-dimensional global proteomics describes the SUMO-modified proteome during meiosis and reveals novel roles in regulating the key events of meiotic chromosome metabolism.
    1. Neuroscience

    Medium spiny neurons activity reveals the discrete segregation of mouse dorsal striatum

    Javier Alegre-Cortés et al.
    Analysis of slow wave brain state unravels the functional connectivity and the biological substrate of the rodent dorsolateral and dorsomedial striatum, demonstrating its organization in two non-overlapping circuits.
    1. Cell Biology

    Optogenetic control of PRC1 reveals its role in chromosome alignment on the spindle by overlap length-dependent forces

    Mihaela Jagrić et al.
    Optogenetic experiments show that bridging microtubules buffer chromosome movements and promote their alignment through forces transferred to the associated kinetochore fibers, which rely on precise regulation of the overlap region.
    1. Physics of Living Systems

    Single molecule microscopy reveals key physical features of repair foci in living cells

    Judith Miné-Hattab et al.
    Upon DNA damage, Rad52 forms a membraneless sub-compartment where Rad52 molecules are highly dynamic and share properties with liquid-liquid phase-separated molecules, reflecting the existence of a liquid droplet around damaged DNA.
    1. Developmental Biology

    Differential activation of JAK-STAT signaling reveals functional compartmentalization in Drosophila blood progenitors

    Diana Rodrigues et al.
    Comprehensive developmental in situ analysis of the Drosophila lymph gland provides markers highlighting blood progenitor diversity and reveals that JAK-STAT signaling prevents posterior progenitor differentiation, promoting survival after immune challenge.
    1. Chromosomes and Gene Expression

    Short-term exposure to intermittent hypoxia leads to changes in gene expression seen in chronic pulmonary disease

    Gang Wu et al.
    RNA profiles from lungs of mice exposed to intermittent hypoxia shared similarity with gene expression changes in human lung from patients with pulmonary diseases, including pulmonary hypertension, COPD, and asthma.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Structural basis of Stu2 recruitment to yeast kinetochores

    Jacob A Zahm et al.
    The results here show that Stu2 binds kinetochores by associating with the Ndc80 complex and that the interaction is critical for accurate chromosome segregation during cell division.

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