80 results found
    1. Structural Biology and Molecular Biophysics

    Translational initiation factor eIF5 replaces eIF1 on the 40S ribosomal subunit to promote start-codon recognition

    Jose Luis Llácer et al.
    The N-terminal domain (NTD) of the initiation factor eIF5 bound to the 40S subunit at the precise location vacated by eIF1 promotes tRNAi accommodation at AUG codons.
    1. Cell Biology
    2. Plant Biology

    Natural variation reveals that intracellular distribution of ELF3 protein is associated with function in the circadian clock

    Muhammad Usman Anwer et al.
    In Arabidopsis, a natural variant of the ELF3 protein, which originated in Central Asia, is less likely to accumulate in the nucleus, and causes the circadian clock to run faster and be less responsive to environmental cues.
    1. Developmental Biology

    Klf5 regulates muscle differentiation by directly targeting muscle-specific genes in cooperation with MyoD in mice

    Shinichiro Hayashi et al.
    The regulatory programs governing skeletal muscle regeneration that are controlled by Klf5 in cooperation with MyoD and Mef2 provide a potential avenue for intervention into muscle regeneration through modulation of Klf5.
    1. Developmental Biology
    2. Human Biology and Medicine

    RUNX1, a transcription factor mutated in breast cancer, controls the fate of ER-positive mammary luminal cells

    Maaike PA van Bragt et al.
    Loss of RUNX1, a key regulator of estrogen receptor-positive luminal breast cells, impairs mammary epithelial differentiation and contributes to luminal breast cancer via genetic interactions with a loss of p53 or RB1.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Translational Control: An emergency brake for protein synthesis

    Vladislava Hronová, Leoš Shivaya Valášek
    The integrated stress response is able to rapidly shut down the synthesis of proteins in eukaryotic cells.
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    1. Cell Biology
    2. Developmental Biology

    Transcription factor TFCP2L1 patterns cells in the mouse kidney collecting ducts

    Max Werth et al.
    A combination of genetic and molecular assays revealed that transcription factor Tfcp2l1 provides the basis for cell patterning and physiologic coordination in kidney collecting ducts.
    1. Computational and Systems Biology
    2. Microbiology and Infectious Disease

    Operon mRNAs are organized into ORF-centric structures that predict translation efficiency

    David H Burkhardt et al.
    Operonic mRNAs in bacteria are comprised of ORF (open reading frame)-wide units of secondary structure, which are intrinsically distinct between adjacent ORFs and encode a rough blueprint for ORF-specific translation efficiency.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Eukaryotic translation initiation factor 3 plays distinct roles at the mRNA entry and exit channels of the ribosomal preinitiation complex

    Colin Echeverría Aitken et al.
    Eukaryotic translation initiation factor 3 (eIF3) is required to stabilize the binding of mRNA at the exit channel of the small ribosomal subunit and acts at the entry channel to accelerate mRNA recruitment to the translation preinitiation complex.
    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. Developmental Biology

    The transcription factor Pitx2 positions the embryonic axis and regulates twinning

    Angela Torlopp et al.
    In higher vertebrates, the position of the embryonic axis (the location at which gastrulation starts) is determined by the transcription factor Pitx2, which suggests that the mechanisms of this process, and hence those that regulate twinning, are related to those that set up the left–right axis.

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