3,424 results found
    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. Developmental Biology

    Nodal and planar cell polarity signaling cooperate to regulate zebrafish convergence and extension gastrulation movements

    Margot LK Williams, Lilianna Solnica-Krezel
    Nodal signaling regulates gastrulation cell behaviors largely in parallel with planar cell polarity signaling and is sufficient for ex vivo extension of embryonic explants.
    1. Cell Biology
    2. Cancer Biology

    Defective apical extrusion signaling contributes to aggressive tumor hallmarks

    Yapeng Gu et al.
    Disrupting extrusion, a process that drives epithelial cell death, leads to increased cell survival, poor barrier function, and enhanced cell invasion and, thereby, promotes tumor initiation and progression.
    1. Biochemistry and Chemical Biology

    RNA World: Visualizing primer extension without enzymes

    John C Chaput
    X-ray crystallography has been used to observe the synthesis of RNA in the absence of enzymes with atomic resolution.
    Insight
    Available as:
    • HTML
    • PDF
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Sir2 phosphorylation through cAMP-PKA and CK2 signaling inhibits the lifespan extension activity of Sir2 in yeast

    Woo Kyu Kang et al.
    The deacetylase Sir2 fine-tunes transcription of PMA1 and other aging related genes in a cAMP-PKA and CK2 signaling dependent manner.
    1. Biochemistry and Chemical Biology

    Non-enzymatic primer extension with strand displacement

    Lijun Zhou et al.
    Relying on RNA fragments derived from degradation or partial template copying, non-enzymatic primer extension with strand displacement offers a novel and prebiotically plausible approach to RNA self-replication.
    1. Computational and Systems Biology
    2. Developmental Biology

    Unipolar distributions of junctional Myosin II identify cell stripe boundaries that drive cell intercalation throughout Drosophila axis extension

    Robert J Tetley et al.
    Analysing Myosin II unipolar planar polarisation with high spatial and temporal resolution during Drosophila axis extension reveals how tissue boundaries drive polarized cell intercalation while limiting cell mixing.
    1. Developmental Biology

    A novel mechanism of gland formation in zebrafish involving transdifferentiation of renal epithelial cells and live cell extrusion

    Richard W Naylor et al.
    A rare example of direct transdifferentiation is discovered in zebrafish in which kidney epithelial cells change into an endocrine gland and undergo live-cell extrusion from the renal tubule.
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    Compaction and segregation of sister chromatids via active loop extrusion

    Anton Goloborodko et al.
    Loop extrusion can robustly compact, segregate and disentangle mammalian chromosomes, suggesting it is a universal mechanism of genome folding during cell division.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    A novel N-terminal extension in mitochondrial TRAP1 serves as a thermal regulator of chaperone activity

    James R Partridge et al.
    Cytosolic and organellar Hsp90s from higher eukaryotes have evolved a variable, and environmentally responsive N-terminal extension to regulate their activity.

Refine your results by:

Type
Research categories