1,277 results found
    1. Neuroscience

    Hippocampal pattern completion is linked to gamma power increases and alpha power decreases during recollection

    Bernhard P Staresina et al.
    Direct recordings from the human hippocampus reveal the neural mechanisms that orchestrate recollection of past experiences.
    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. Cell Biology
    2. Developmental Biology

    Control of PNG kinase, a key regulator of mRNA translation, is coupled to meiosis completion at egg activation

    Masatoshi Hara et al.
    The kinase that controls maternal mRNA translation is regulated by phosphorylation of its activating subunit to restrict kinase activity to the developmental window between meiosis completion and early embryogenesis.
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    Single-molecule observation of DNA compaction by meiotic protein SYCP3

    Johanna L Syrjänen et al.
    Building on previous work (Syrjänen, Pellegrini, & Davies, 2014), it is shown that SYCP3 contributes to the architecture of meiotic chromosomes through local bridging interactions that result in large-scale compaction of the chromosome axis.
    1. Cell Biology
    2. Evolutionary Biology

    Evolution of histone 2A for chromatin compaction in eukaryotes

    Benjamin R Macadangdang et al.
    The N-terminal domain in histone 2A serves as an evolutionary tool to enable greater chromatin compaction when genome size is disproportionately larger than the nuclear volume across eukaryotes.
    1. Neuroscience

    Hippocampal and cortical mechanisms at retrieval explain variability in episodic remembering in older adults

    Alexandra N Trelle et al.
    The strength of pattern completion during memory retrieval, indexed by hippocampal activity and cortical reinstatement, explains within- and across-individual variability in episodic memory in older adults.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    The force-sensing peptide VemP employs extreme compaction and secondary structure formation to induce ribosomal stalling

    Ting Su et al.
    The structure of the VemP-stalled ribosome reveals a helix-double turn-helix conformation of the nascent chain within the ribosomal tunnel, illustrating how secondary structure formation directly at the peptidyltransferase center of the ribosome can induce translational arrest.
    1. Structural Biology and Molecular Biophysics

    Mechanism of completion of peptidyltransferase centre assembly in eukaryotes

    Vasileios Kargas et al.
    Cryo-EM reveals how the central functional site of the ribosome is assembled and provides a framework to interpret the consequences of mutations linked to leukaemia-associated ribosomopathies.
    1. Biochemistry and Chemical Biology

    Gradual compaction of the nascent peptide during cotranslational folding on the ribosome

    Marija Liutkute et al.
    HemK NTD cotranslational folding starts within the ribosome exit tunnel upon N-terminal helix synthesis and proceeds sequentially through a series of intermediates becoming less dynamic as the nascent chain grows.
    1. Cell Biology

    Axial contraction and short-range compaction of chromatin synergistically promote mitotic chromosome condensation

    Tom Kruitwagen et al.
    Condensation and segregation of chromosomes during mitosis is caused by a combination of short-range interactions between nucleosomes and the long-range contraction of chromosome arms mediated by condensin.

Refine your results by:

Type
Research categories