317 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. Cancer Biology
    2. Cell Biology

    The mTORC1-mediated activation of ATF4 promotes protein and glutathione synthesis downstream of growth signals

    Margaret E Torrence et al.
    ATF4 is a metabolic effector of mTORC1 signaling, co-opted to induce gene targets involved in amino acid synthesis, uptake, and tRNA charging, contributing to mTORC1-driven protein and glutathione synthesis.
    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. Cell Biology
    2. Evolutionary Biology

    The wtf4 meiotic driver utilizes controlled protein aggregation to generate selective cell death

    Nicole L Nuckolls et al.
    The Wtf4 antidote protein assembles with the Wtf4 poison protein and promotes the transportation of the assembled proteins to the vacuole for sequestration or destruction.
    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. Biochemistry and Chemical Biology

    Ctf4 organizes sister replisomes and Pol α into a replication factory

    Zuanning Yuan et al.
    Eukaryotic replisomes are strongly connected together to replicate both sister DNAs produced from a bidirectional origin.
    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. Cancer Biology
    2. Chromosomes and Gene Expression

    HBO1-MLL interaction promotes AF4/ENL/P-TEFb-mediated leukemogenesis

    Satoshi Takahashi et al.
    Interaction of the MLL and HBO1 complexes is a key nexus for leukemic transformation that can serve as a therapeutic target.
    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.

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