328 results found
  1. January 2015

    Episode 17: January 2015

    In this episode we hear about controlling sperm by optogenetics, hibernation, body clocks, enzyme structure, and a way to overcome stress-induced infertility.
    1. Developmental Biology
    2. Evolutionary Biology

    Secondary ossification center induces and protects growth plate structure

    Meng Xie et al.
    The principle underlying the appearance of the growth plate, an organ responsible for longitudinal growth, has implications for various cartilage pathologies including growth abnormalities in children, trauma and osteoarthritis.
    1. Ecology

    Digitizing mass spectrometry data to explore the chemical diversity and distribution of marine cyanobacteria and algae

    Tal Luzzatto-Knaan et al.
    Mass spectrometry has potential as a tool for ecological studies and bioprospecting of natural products from marine cyanobacteria and algae.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    The Chd1 chromatin remodeler shifts hexasomes unidirectionally

    Robert F Levendosky et al.
    Oriented hexasomes can be generated using the Widom 601 positioning sequence, which enables straightforward production of nucleosomes with asymmetrically modified H2A/H2B dimers.
    1. Cell Biology

    Measuring NDC80 binding reveals the molecular basis of tension-dependent kinetochore-microtubule attachments

    Tae Yeon Yoo et al.
    Quantitative experiments and theory show that the tension-dependent regulation of NDC80 binding to kinetochore microtubules arises from a combination of the changing Aurora B concentration at NDC80 and the nonlinearity of Aurora B autoactivation.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Synergistic assembly of human pre-spliceosomes across introns and exons

    Joerg E Braun et al.
    Viewing the dynamic interactions of individual spliceosomal subcomplexes with single pre-messenger RNA molecules reveals how nearby flanking splice sites accelerate pre-spliceosome assembly and the splicing of multi-intron pre-mRNAs.
    1. Computational and Systems Biology
    2. Structural Biology and Molecular Biophysics

    Functional cross-talk between allosteric effects of activating and inhibiting ligands underlies PKM2 regulation

    Jamie A Macpherson et al.
    Specific residues within an enzyme integrate allosteric inputs that originate from distinct ligand-binding pockets.
    1. Cell Biology

    Impaired lysosomal acidification triggers iron deficiency and inflammation in vivo

    King Faisal Yambire et al.
    Impaired lysosomal acidification results in retention of iron inside lysosomes, triggering functional iron deficiency, dysfunctional mitochondria (especially mtDNA loss), and inflammation in vivo in a mouse model of lysosomal disease.
    1. Cell Biology

    SIRT2 deacetylase regulates the activity of GSK3 isoforms independent of inhibitory phosphorylation

    Mohsen Sarikhani et al.
    Mass spectroscopy, molecular modeling and/or molecular dynamics simulations reveal how acetylation regulates the activity of GSK3 isoforms independent of inhibitory phosphorylation.
    1. Structural Biology and Molecular Biophysics
    2. Computational and Systems Biology

    Mechanism of allosteric regulation of β2-adrenergic receptor by cholesterol

    Moutusi Manna et al.
    Atomistic simulations reveal how lipids can allosterically modulate membrane receptors.

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