195 results found
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    AFF4 binding to Tat-P-TEFb indirectly stimulates TAR recognition of super elongation complexes at the HIV promoter

    Ursula Schulze-Gahmen et al.
    AFF4 increases the combined selectivity of HIV Tat and TAR for super elongation complexes 330-fold over P-TEFb alone.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    TAF4, a subunit of transcription factor II D, directs promoter occupancy of nuclear receptor HNF4A during post-natal hepatocyte differentiation

    Daniil Alpern et al.
    Physical and functional interactions between HNF4A and TAF4 coordinate HNF4A genomic occupancy with pre-initiation complex formation to activate post-natal hepatocyte gene expression.
    1. Biochemistry and Chemical Biology

    Pharmacologic ATF6 activating compounds are metabolically activated to selectively modify endoplasmic reticulum proteins

    Ryan Paxman et al.
    The small molecule, 147, is a pro-drug that preferentially activates ATF6 signaling through a mechanism involving localized metabolic activation and selective covalent modification of ER resident proteins involved in regulating ATF6 activity.
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    The AFF4 scaffold binds human P-TEFb adjacent to HIV Tat

    Ursula Schulze-Gahmen et al.
    Structure-function analysis of the super elongation complex formed when HIV replicates inside cells reveals that the HIV-1 Tat protein binds to a cleft between P-TEFb, an enzyme that is involved in normal transcription, and AFF4, a protein that is used to build the super elongation complex
    1. Developmental Biology
    2. Chromosomes and Gene Expression

    ATF4 licenses C/EBPβ activity in human mesenchymal stem cells primed for adipogenesis

    Daniel M Cohen et al.
    The transcription factor C/EBPβ binds to different DNA sequences depending on whether it binds to ATF4, which enables C/EBPβ to conduct diverse transcriptional programs during adipocyte differentiation by exploiting an expanded motif repertoire.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    HRI coordinates translation necessary for protein homeostasis and mitochondrial function in erythropoiesis

    Shuping Zhang et al.
    The heme and HRI-mediated eIF2aP–ATF4 integrated stress response in erythropoiesis has a major global impact, especially under the stress condition of iron deficiency.
    1. Developmental Biology

    Inhibiting the integrated stress response pathway prevents aberrant chondrocyte differentiation thereby alleviating chondrodysplasia

    Cheng Wang et al.
    Integrated stress response-induced expression of ATF4 and its transactivation of SOX9 causes aberrant chondrocyte differentiation and skeletal defects which can be alleviated by modulating initiation-factor eIF2α phosphorylation translation control.
    1. Cell Biology

    Unfolded Protein Response: Modulating protein quality control

    Lars Plate et al.
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    1. Cell Biology
    2. Neuroscience

    Cell Biology: Less translational control, more memory

    Graham D Pavitt
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    1. Cell Biology

    Ceapins inhibit ATF6α signaling by selectively preventing transport of ATF6α to the Golgi apparatus during ER stress

    Ciara M Gallagher, Peter Walter
    Ceapins specifically inhibit ATF6α signaling by preventing its transport to the Golgi during endoplasmic reticulum stress.

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