Abstract:
:The use of oligonucleotides to activate the splicing of selected exons is limited by a poor understanding of the mechanisms affected. A targeted bifunctional oligonucleotide enhancer of splicing (TOES) anneals to SMN2 exon 7 and carries an exonic splicing enhancer (ESE) sequence. We show that it stimulates splicing specifically of intron 6 in the presence of repressing sequences in intron 7. Complementarity to the 5' end of exon 7 increases U2AF65 binding, but the ESE sequence is required for efficient recruitment of U2 snRNP. The ESE forms at least three coexisting discrete states: a quadruplex, a complex containing only hnRNP F/H, and a complex enriched in the activator SRSF1. Neither hnRNP H nor quadruplex formation contributes to ESE activity. The results suggest that splicing limited by weak signals can be rescued by rapid exchange of TOES oligonucleotides in various complexes and raise the possibility that SR proteins associate transiently with ESEs.
journal_name
Cell Repjournal_title
Cell reportsauthors
Smith LD,Dickinson RL,Lucas CM,Cousins A,Malygin AA,Weldon C,Perrett AJ,Bottrill AR,Searle MS,Burley GA,Eperon ICdoi
10.1016/j.celrep.2014.08.051subject
Has Abstractpub_date
2014-10-09 00:00:00pages
193-205issue
1issn
2211-1247pii
S2211-1247(14)00727-Xjournal_volume
9pub_type
杂志文章相关文献
Cell Reports文献大全abstract::ADP-ribosylation (ADPr) is a reversible posttranslational modification involved in a range of cellular processes. Here, we report system-wide identification of serine ADPr in human cells upon oxidative stress. High-resolution mass spectrometry and unrestricted data processing confirm that serine residues are the major...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2018.07.083
更新日期:2018-08-28 00:00:00
abstract::Innate immunity is central to the pathophysiology of neurodegenerative disorders, but it remains unclear why immunity is altered in the disease state and whether changes in immunity are a cause or a consequence of neuronal dysfunction. Here, we identify a molecular pathway that links innate immunity to age-dependent l...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2018.12.025
更新日期:2019-01-02 00:00:00
abstract::The mechanisms by which the major Polycomb group (PcG) complexes PRC1 and PRC2 are recruited to target sites in vertebrate cells are not well understood. Building on recent studies that determined a reciprocal relationship between DNA methylation and Polycomb activity, we demonstrate that, in methylation-deficient emb...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2014.04.012
更新日期:2014-06-12 00:00:00
abstract::Bromodomain and extra-terminal domain (BET) family inhibitors offer an approach to treating hematological malignancies. We used precision nuclear run-on transcription sequencing (PRO-seq) to create high-resolution maps of active RNA polymerases across the genome in t(8;21) acute myeloid leukemia (AML), as these polyme...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2016.07.032
更新日期:2016-08-16 00:00:00
abstract::Mutations of WD40-repeat protein 62 (WDR62) have been identified recently to cause human MCPH (autosomal-recessive primary microcephaly), a neurodevelopmental disorder characterized by decreased brain size. However, the underlying mechanism is unclear. Here, we investigate the function of WDR62 in brain development an...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2013.12.016
更新日期:2014-01-16 00:00:00
abstract::Loss of NF-κB signaling causes immunodeficiency, whereas inhibition of NF-κB can be efficacious in treating chronic inflammatory disease. Inflammatory NF-κB signaling must therefore be tightly regulated, and although many mechanisms to downregulate NF-κB have been elucidated, there have only been limited studies demon...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2015.06.050
更新日期:2015-07-28 00:00:00
abstract::The NMDA receptor (NMDAR) antagonist ketamine elicits a long-lasting antidepressant response in patients with treatment-resistant depression. Understanding how antagonism of NMDARs alters synapse and circuit function is pivotal to developing circuit-based therapies for depression. Using virally induced gene deletion, ...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2017.08.002
更新日期:2017-08-22 00:00:00
abstract::At presynaptic active zones, exocytosis of neurotransmitter vesicles (SVs) is driven by SNARE complexes that recruit Syb2 and SNAP25. However, it remains unknown which SNAREs promote the secretion of neuronal proteins, including those essential for circuit development and experience-dependent plasticity. Here we demon...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2015.04.032
更新日期:2015-05-19 00:00:00
abstract::Unconventional secretion of exosome vesicles from multivesicular endosomes (MVEs) occurs across a broad set of systems and is reported to be upregulated in cancer, where it promotes aggressive behavior. However, regulatory control of exosome secretion is poorly understood. Using cancer cells, we identified specialized...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2013.10.050
更新日期:2013-12-12 00:00:00
abstract::Lipoprotein cholesterol is delivered to the limiting membrane of late endosomes/lysosomes (LELs) by Niemann-Pick C1 (NPC1). However, the mechanism of cholesterol transport from LELs to the endoplasmic reticulum (ER) is poorly characterized. We report that oxysterol-binding protein-related protein 1L (ORP1L) is necessa...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2017.05.028
更新日期:2017-05-30 00:00:00
abstract::We provide a catalog for the effects of the human kinome on cell survival in response to DNA-damaging agents, covering all major DNA repair pathways. By treating 313 kinase-deficient cell lines with ten diverse DNA-damaging agents, including seven commonly used chemotherapeutics, we identified examples of vulnerabilit...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2018.12.087
更新日期:2019-01-15 00:00:00
abstract::The bacterial pathogen Listeria monocytogenes (Lm) capitalizes on natural killer (NK) cell production of regulatory interleukin (IL)-10 to establish severe systemic infections. Here, we identify regulators of this IL-10 secretion. We show that IL-18 signals to NK cells license their ability to produce IL-10. IL-18 act...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2018.04.106
更新日期:2018-05-29 00:00:00
abstract::We report that the mammalian 5-methylcytosine (5mC) oxidase Tet3 exists as three major isoforms and characterized the full-length isoform containing an N-terminal CXXC domain (Tet3FL). This CXXC domain binds to unmethylated CpGs, but, unexpectedly, its highest affinity is toward 5-carboxylcytosine (5caC). We determine...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2015.12.044
更新日期:2016-01-26 00:00:00
abstract::The multiple functions of lysosomes are critically dependent on their ability to undergo bidirectional movement along microtubules between the center and the periphery of the cell. Centrifugal and centripetal movement of lysosomes is mediated by kinesin and dynein motors, respectively. We recently described a multi-su...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2016.10.062
更新日期:2016-11-15 00:00:00
abstract::DNA methylation plays crucial roles in chromatin structure and gene expression. Aberrant DNA methylation patterns, including global hypomethylation and regional hypermethylation, are associated with cancer and implicated in oncogenic events. How DNA methylation is regulated in developmental and cellular processes and ...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2017.11.082
更新日期:2017-12-19 00:00:00
abstract::Senescence is a cellular response preventing tumorigenesis. The Ras oncogene is frequently activated or mutated in human cancers, but Ras activation is insufficient to transform primary cells. In a search for cooperating oncogenes, we identify the lysine demethylase JMJD2A/KDM4A. We show that JMJD2A functions as a neg...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2012.09.033
更新日期:2012-11-29 00:00:00
abstract::Antibodies secreted within the intestinal tract provide protection from the invasion of microbes into the host tissues. Germinal center (GC) formation in lymph nodes and spleen strictly requires SLAM-associated protein (SAP)-mediated T cell functions; however, it is not known whether this mechanism plays a similar rol...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2020.01.032
更新日期:2020-02-11 00:00:00
abstract::Wnts are a family of 19 extracellular ligands that regulate cell fate, proliferation, and migration during metazoan embryogenesis and throughout adulthood. Wnts are acylated post-translationally at a conserved serine and bind the extracellular cysteine-rich domain (CRD) of Frizzled (FZD) seven-pass transmembrane recep...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2018.12.104
更新日期:2019-01-22 00:00:00
abstract::Plasma metabolite concentrations reflect the activity of tissue metabolic pathways and their quantitative determination may be informative about pathogenic conditions. We searched for plasma lipid species whose concentrations correlate with various parameters of glucose homeostasis and susceptibility to type 2 diabete...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2017.02.019
更新日期:2017-02-28 00:00:00
abstract::Spatiotemporal protein reorganization at DNA damage sites induced by genotoxic chemotherapies is crucial for DNA damage response (DDR), which influences treatment response by directing cancer cell fate. This process is orchestrated by valosin-containing protein (VCP), an AAA+ ATPase that extracts polyubiquinated chrom...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2020.107745
更新日期:2020-06-09 00:00:00
abstract::Intratumoral (IT) STING activation results in tumor regression in preclinical models, yet factors dictating the balance between innate and adaptive anti-tumor immunity are unclear. Here, clinical candidate STING agonist ADU-S100 (S100) is used in an IT dosing regimen optimized for adaptive immunity to uncover requirem...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2018.11.047
更新日期:2018-12-11 00:00:00
abstract::This study evaluates HIV antibody responses and their evolution during the course of HIV infection. A phage display system is used to characterize antibody binding to >3,300 HIV peptides in 57 adults with early- to late-stage infection. We find that the number of unique epitopes targeted ("antibody breadth") increases...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2019.03.097
更新日期:2019-04-30 00:00:00
abstract::Major depressive disorder is associated with weight loss and decreased appetite; however, the signaling that connects these conditions is unclear. Here, we show that MC4R signaling in the dorsal raphe nucleus (DRN) affects feeding, anxiety, and depression. DRN infusion of α-MSH decreases DRN neuronal activation and fe...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2020.108267
更新日期:2020-10-13 00:00:00
abstract::Inactivation of the Pten tumor suppressor negatively regulates the PI3K-mTOR pathway. In a model of cutaneous squamous cell carcinoma (SCC), we demonstrate that deletion of Pten strongly elevates Fgf10 protein levels without increasing Fgf10 transcription in vitro and in vivo. The translational activation of Fgf10 by ...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2014.01.045
更新日期:2014-03-13 00:00:00
abstract::A central paradigm in the field of lymphocyte biology asserts that replicatively senescent memory T cells express the carbohydrate epitope CD57. These cells nonetheless accumulate with age and expand numerically in response to persistent antigenic stimulation. Here, we use in vivo deuterium labeling and ex vivo analys...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2020.108501
更新日期:2020-12-15 00:00:00
abstract::Glycophosphatidylinositol-anchored proteins (GPI-APs) play essential roles in physiology, but their biogenesis and trafficking have not been systematically characterized. Here, we took advantage of the recently available haploid genetics approach to dissect GPI-AP pathways in human cells using prion protein (PrP) and ...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2015.05.026
更新日期:2015-06-23 00:00:00
abstract::After implantation, pluripotent epiblasts are converted to embryonic ectoderm through cell-cell interactions that significantly change the transcriptional and epigenetic networks. An entrée to understanding this vital developmental transition is the t(w5) mutation of the mouse t complex. This mutation produces highly ...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2012.10.004
更新日期:2012-11-29 00:00:00
abstract::The function of regulatory T (Treg) cells depends on lipid oxidation. However, the molecular mechanism by which Treg cells maintain lipid metabolism after activation remains elusive. Liver kinase B1 (LKB1) acts as a coordinator by linking cellular metabolism to substrate AMP-activated protein kinase (AMPK). We show th...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2019.05.020
更新日期:2019-06-04 00:00:00
abstract::Neurons face the challenge of maintaining cellular homeostasis through lysosomal degradation. While enzymatically active degradative lysosomes are enriched in the soma, their axonal trafficking and positioning and impact on axonal physiology remain elusive. Here, we characterized axon-targeted delivery of degradative ...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2019.06.013
更新日期:2019-07-02 00:00:00
abstract::Lung disease is a major cause of death in the United States, with current therapeutic approaches serving only to manage symptoms. The most common chronic and life-threatening genetic disease of the lung is cystic fibrosis (CF) caused by mutations in the cystic fibrosis transmembrane regulator (CFTR). We have generated...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2015.07.062
更新日期:2015-09-01 00:00:00