936 results found
    1. Biochemistry and Chemical Biology
    2. Genetics and Genomics

    Genome-wide dynamics of Pol II elongation and its interplay with promoter proximal pausing, chromatin, and exons

    Iris Jonkers et al.
    The elongation rate of RNA Polymerase II varies greatly between and along genes, as this enzyme accelerates from stable pausing to rapid elongation within genes, and is influenced by CG-content, exons and chromatin.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Architecture and RNA binding of the human negative elongation factor

    Seychelle M Vos et al.
    The structural architecture of the 4-subunit, RNA-binding human negative elongation factor NELF is derived by a combination of X-ray crystallography and protein crosslinking.
    1. Biochemistry and Chemical Biology

    Tyr1 phosphorylation promotes phosphorylation of Ser2 on the C-terminal domain of eukaryotic RNA polymerase II by P-TEFb

    Joshua E Mayfield et al.
    The phosphorylation of tyrosine in the heptad repeat of the C-terminal domain of the largest subunit of RNA polymerase II promotes Ser2 phosphorylation by P-TEFb for pausing release.
    1. Microbiology and Infectious Disease

    TRIM28 promotes HIV-1 latency by SUMOylating CDK9 and inhibiting P-TEFb

    Xiancai Ma et al.
    TRIM28 was found to be a versatile dual-function latency contributor by bridging both suppressive epigenetic modifications and RNAP II transcriptional-pausing, and can be a novel target to develop latency-reversing agents.
    1. Developmental Biology
    2. Chromosomes and Gene Expression

    Science Forum: Considerations when investigating lncRNA function in vivo

    Andrew R Bassett et al.
    We discuss the methods available to understand lncRNA function in vivo, and highlight important considerations that should be taken into account when designing such experiments.
    1. Structural Biology and Molecular Biophysics

    Limited dishevelled/Axin oligomerization determines efficiency of Wnt/β-catenin signal transduction

    Wei Kan et al.
    In vitro and in cellulo characterization of oligomerization by the cytoplasmic Wnt effector dishevelled and its partner Axin provide new mechanistic principles for Wnt/β-catenin signaling.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structures of S-OPA1 reveal its interactions with membrane and changes upon nucleotide binding

    Danyang Zhang et al.
    GTP binding induces rearrangement of S-OPA1 assembly on membrane and thus triggers membrane remodeling with reduced curvature.
    1. Developmental Biology

    LIS1 determines cleavage plane positioning by regulating actomyosin-mediated cell membrane contractility

    Hyang Mi Moon et al.
    Novel insights into LIS1-dependent regulation of cell membrane contractility and cleavage axis specification identify a key molecular network regulating mitoses of neural progenitors and somatic cells during development.
    1. Cell Biology

    Ciliary Rab28 and the BBSome negatively regulate extracellular vesicle shedding

    Jyothi S Akella et al.
    The RAB-28 GTPase regulates ciliary extracellular vesicle shedding, which may be important for neuron-glia communication.
    1. Cell Biology
    2. Developmental Biology

    The CHORD protein CHP-1 regulates EGF receptor trafficking and signaling in C. elegans and in human cells

    Andrea Haag et al.
    The co-chaperone CHORDC1 is specifically required for epidermal growth factor receptor trafficking and signaling in Caenorhabditis elegans and in human cells.

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