251 results found
    1. Developmental Biology

    Negative regulation of G2-M by ATR (mei-41)/Chk1(Grapes) facilitates tracheoblast growth and tracheal hypertrophy in Drosophila

    Amrutha Kizhedathu et al.
    ATR/Chk1 contribute to G2 arrest in developing tracheoblasts, and arrest in G2 facilitates cellular and hypertrophic organ growth.
    1. Neuroscience

    Coordinated control of terminal differentiation and restriction of cellular plasticity

    Tulsi Patel, Oliver Hobert
    Transcription factors that specify the identity of individual neuron types via activating terminal differentiation gene batteries also restrict cellular plasticity via altering the chromatin landscape.
    1. Developmental Biology
    2. Evolutionary Biology

    Domestic chickens activate a piRNA defense against avian leukosis virus

    Yu Huining Sun et al.
    To protect the germ line genome, chickens acquire new small RNA-based immune defense in response to recently endogenized retroviruses by turning a truncated provirus into a weapon.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Molecular mechanism of activation-triggered subunit exchange in Ca2+/calmodulin-dependent protein kinase II

    Moitrayee Bhattacharyya et al.
    Closed-ring and open-spiral assembly of the multi-subunit neuronal kinase CaMKII suggest a mechanism for how active subunits shuttle between individual assemblies, propagating stimulatory signals.
    1. Structural Biology and Molecular Biophysics
    2. Human Biology and Medicine

    Epithelial magnesium transport by TRPM6 is essential for prenatal development and adult survival

    Vladimir Chubanov et al.
    Mice deficient in the TRPM6 channel suffer from impaired prenatal development, shortened lifespan, growth deficit and disturbed energy balance due to a defect in epithelial Mg2+ uptake, thus highlighting a pivotal role of TRPM6 in organismal Mg2+ homeostasis.
    1. Developmental Biology
    2. Human Biology and Medicine

    T-box3 is a ciliary protein and regulates stability of the Gli3 transcription factor to control digit number

    Uchenna Emechebe et al.
    The transcription and splicing factor T-box3 is present in primary cilia, regulates multiple aspects of limb development, and interacts with members of the protein complex required for the stability and processing of the Gli3 transcription factor.
    1. Plant Biology

    Calcium specificity signaling mechanisms in abscisic acid signal transduction in Arabidopsis guard cells

    Benjamin Brandt et al.
    The calcium-dependent signaling pathway during ABA-dependent stomatal closure requires the calcium-independent pathway, and calcium signaling specificity is mediated by PP2C protein phosphatases.
    1. Evolutionary Biology

    Robust and accurate prediction of residue–residue interactions across protein interfaces using evolutionary information

    Sergey Ovchinnikov et al.
    Co-evolving residue pairs in the different components of a protein complex almost always make contact across the protein–protein interface, thus providing powerful restraints for the modeling of protein complexes.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Pharmacological dimerization and activation of the exchange factor eIF2B antagonizes the integrated stress response

    Carmela Sidrauski et al.
    A drug-like molecule called ISRIB, which activates the translation initiation factor eIF2B, antagonizes stress responses as diverse as protein misfolding and nutrient deprivation, and restores protein synthesis, enhancing memory.
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    MutS/MutL crystal structure reveals that the MutS sliding clamp loads MutL onto DNA

    Flora S Groothuizen et al.
    Visualization of the sliding clamp in DNA mismatch repair shows how a transient complex is activated.

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