DOCSLIB.ORG

Role of the Post-Transcriptional Regulators Pumilio1 and Pumilio2 in Murine Hematopoietic Stem Cells Fabio Michelet

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Role of the Post-Transcriptional Regulators Pumilio1 and Pumilio2 in Murine Hematopoietic Stem Cells Fabio Michelet Role of the post-transcriptional regulators Pumilio1 and Pumilio2 in murine hematopoietic stem cells Fabio Michelet To cite this version: Fabio Michelet. Role of the post-transcriptional regulators Pumilio1 and Pumilio2 in murine hematopoietic stem cells. Human health and pathology. Université René Descartes - Paris V, 2013. English. NNT : 2013PA05S013. tel-00911665 HAL Id: tel-00911665 https://tel.archives-ouvertes.fr/tel-00911665 Submitted on 29 Nov 2013 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Université Paris Descartes Ecole Doctorale Biologie et Biotechnologie INSERM U1016, Institut Cochin / Equipe Dusanter-Cramer Role of the post-transcriptional regulators Pumilio1 and Pumilio2 in murine Hematopoietic Stem Cells Par Fabio Michelet Thèse de doctorat en Hématologie et Oncologie Dirigée par Dr. Evelyne Lauret Présentée et soutenue publiquement le 7 Novembre 2013 Devant un jury composé de : Président: Pr. Lacombe Catherine (PU-PH) Rapporteur: Dr. Simonelig Martine (DR2). Rapporteur: Dr. Mazurier Frédéric (DR2) Examinateur: Dr. Cohen-Tannoudji Michel (DR2) Directrice de thèse : Dr. Lauret Evelyne (CR1, HDR) CONTENTS ACKNOWLEDGEMENTS ........................................................................................................ I ABSTRACT .............................................................................................................................. V LIST OF FIGURES .............................................................................................................. VII LIST OF ABBREVIATIONS .................................................................................................. IX INTRODUCTION .................................................................................... 1 1. STEM CELLS .......................................................................................................... 3 1.1. DEFINITION OF STEM CELL POTENTIAL ................................................... 4 1.1.1. Totipotent stem cells ...................................................................................... 4 1.1.2. Pluripotent stem cells ..................................................................................... 4 1.1.2.1. Embryonic stem cells ............................................................................ 5 1.1.3 Multipotent stem cells and Adult stem cells ................................................. 6 1.1.4. Progenitor cells ........................................................................................... 7 2. HEMATOPOIETIC STEM CELLS ........................................................................... 8 2.1. MURINE HEMATOPOIETIC STEM CELL ASSAYS ....................................... 11 2.1.1. In vitro assays ........................................................................................... 12 2.1.1.1. Colony-Forming Cell Assay ................................................................ 12 2.1.1.2. Long-term culture-initiating cell assay ................................................ 13 2.1.2. In vivo Assays ........................................................................................... 13 2.1.2.1 Short Term in vivo assays ................................................................... 13 2.1.2.1.1. Colony-forming unit-spleen (CFU-S) cells assay .......................... 13 2.1.2.2 Long Term Repopulating Cells assay .................................................. 14 2.1.2.2.1. Competitive repopulation assay ................................................... 14 2.1.2.2.2. Limiting dilution assay .................................................................. 15 2.1.2.2.3. Serial transplantation assay ......................................................... 15 2.1.3. Immunophenotypical analysis of HSC/Progenitor cells ............................. 16 2.1.3.1. Thy1.1lo, Lin- Sca-1+ Cells .................................................................. 16 2.1.3.2. Lin c-Kit+ Sca-1+ Cells......................................................................... 16 2.1.3.3. SLAM Family Members ...................................................................... 16 2.1.3.4. Fluorescent dyes ................................................................................ 17 2.1.4. Phenotype and isolation of HSC based on their cycling behaviour ........... 17 2.2. HUMAN HEMATOPOIETIC STEM CELL ASSAY ........................................... 19 2.2.1. In vitro assays ........................................................................................... 19 2.2.2. In vivo assays ........................................................................................... 19 2.2.3. Immunophenotypical analysis of human HSC/Progenitor cells ................. 20 2.3. HEMATOPOIETIC STEM CELLS MAINTENANCE ........................................ 21 2.3.1. Cell-intrinsic pathways .............................................................................. 21 2.3.1.1. Anti-apoptotic proteins ....................................................................... 21 2.3.1.2. Transcription factors ........................................................................... 22 2.3.1.3. Signal transducers ............................................................................. 24 2.3.1.4. Polycomb group proteins ................................................................... 25 2.3.2. Hematopoietic stem cells niche and cell-extrinsic pathways .................... 26 2.3.2.1. Cellular components of the HSC niche .............................................. 27 2.3.2.2. Molecular regulators of HSC fate ....................................................... 29 2.3.2.2.1. Secreted ligands and their receptors ........................................... 30 2.3.2.2.2. WNT signaling ............................................................................. 32 2.3.2.2.3. Notch signaling ............................................................................ 34 2.3.2.2.4. Hedgehog and TGFβ signaling .................................................... 38 2.3.2.2.5. The extracellular matrix ................................................................ 39 2.3.2.2.6. Adhesion molecules ..................................................................... 40 2.3.2.2.7. Chemical gradients ...................................................................... 42 2.3.2.3. Induced HSC mobilization .................................................................. 44 2.3.2.4. The “progeny niche”: feedback regulation from HSC progeny ........... 44 2.3.3. Post-transcriptional regulation in HSCs .................................................... 45 2.3.3.1. microRNA ........................................................................................... 45 2.3.3.2. RNA binding proteins ......................................................................... 46 3. PUMILIO ............................................................................................................... 49 3.1. PUF FAMILY PROTEINS ............................................................................... 49 3.1.1. Pumilio proteic domains ........................................................................... 52 3.2. PUF PROTEINS: POST-TRANSCRIPTIONAL REPRESSORS ..................... 56 3.2.1. Mechanisms of action ............................................................................... 56 3.2.1.1. Deadenylase recruitment ................................................................... 56 3.2.1.2. Inhibition of translation initiation ......................................................... 57 3.2.1.3. Inhibition of translation elongation ...................................................... 58 3.2.1.4. Cooperation with miRNAs .................................................................. 58 3.2.2. Non-canonical PUF mechanism of action ................................................ 60 3.2.2.1. PUFs as activators of mRNA expression ........................................... 60 3.2.2.2. mRNA localization by PUF proteins ................................................... 61 3.3. PUF COMBINATORIAL REGULATION: TARGETS AND PARTNERS .......... 63 3.3.1. Target mRNAs .......................................................................................... 63 3.3.2. Protein partners ........................................................................................ 64 3.4. PUF REGULATORS ....................................................................................... 71 3.5. PUF AND STEM CELLS MAINTENANCE IN INVERTEBRATES .................. 72 3.6. MAMMALIAN PUF PROTEINS ...................................................................... 73 3.6.1. Pumilio proteins and neuronal functions. .................................................. 73 3.6.2. Pumilio proteins and spermatogenesis ..................................................... 74 3.6.3. Pumilio proteins and cancer ..................................................................... 75 3.6.4. Murine Pum1 and Pum2 genes: structure
Load more

Recommended publications
  • Alternative Polyadenylation in Triple-Negative Breast Tumors Allows NRAS and C-JUN to Bypass PUMILIO Post-Transcriptional Regulation
    Author Manuscript Published OnlineFirst on October 10, 2016; DOI: 10.1158/0008-5472.CAN-16-0844 Author manuscripts have been peer reviewed and accepted for publication but have not yet been edited. Title: Alternative polyadenylation in triple-negative breast tumors allows NRAS and c-JUN to bypass PUMILIO post-transcriptional regulation Running Title: Alternative polyadenylation in triple-negative breast cancer Authors: Wayne O. Miles 1, 2, 7, Antonio Lembo 3, 4, Angela Volorio 5, Elena Brachtel 5, Bin Tian 6, Dennis Sgroi 5, Paolo Provero 3, 4 and Nicholas J. Dyson 1, 7 1 Department of Molecular Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, 149 13th Street, Charlestown, MA, 02129, USA. 2 Department of Molecular Genetics, The Ohio State University Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210 3 Department of Molecular Biotechnology and Health Sciences, University of Turin, Italy. 4 Center for Translational Genomics and Bioinformatics, San Raffaele Scientific Institute, Milan, Italy. 5 Pathology Department, Massachusetts General Hospital Cancer Center and Harvard Medical School, 149 13th Street, Charlestown, MA, 02129, USA. 6 Department of Microbiology, Biochemistry and Molecular Genetics, Rutgers New Jersey Medical School, Newark, NJ, USA 7 Corresponding authors: [email protected] (N.D.) and [email protected] (W.O.M.) Conflict of interest The authors have no conflict of interest. Financial Support 1 Downloaded from cancerres.aacrjournals.org on September 25, 2021. © 2016 American Association for Cancer Research. Author Manuscript Published OnlineFirst on October 10, 2016; DOI: 10.1158/0008-5472.CAN-16-0844 Author manuscripts have been peer reviewed and accepted for publication but have not yet been edited.
    [Show full text]
  • Regulation of Pluripotency by RNA Binding Proteins
    Cell Stem Cell Review Regulation of Pluripotency by RNA Binding Proteins Julia Ye1,2 and Robert Blelloch1,2,* 1The Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, Center for Reproductive Sciences, University of California, San Francisco, San Francisco, CA 94143, USA 2Department of Urology, University of California, San Francisco, San Francisco, CA 94143, USA *Correspondence: [email protected] http://dx.doi.org/10.1016/j.stem.2014.08.010 Establishment, maintenance, and exit from pluripotency require precise coordination of a cell’s molecular machinery. Substantial headway has been made in deciphering many aspects of this elaborate system, particularly with respect to epigenetics, transcription, and noncoding RNAs. Less attention has been paid to posttranscriptional regulatory processes such as alternative splicing, RNA processing and modification, nuclear export, regulation of transcript stability, and translation. Here, we introduce the RNA binding proteins that enable the posttranscriptional regulation of gene expression, summarizing current and ongoing research on their roles at different regulatory points and discussing how they help script the fate of pluripotent stem cells. Introduction RBPs are responsible for every event in the life of an RNA Embryonic stem cells (ESCs), which are derived from the inner molecule, including its capping, splicing, cleavage, nontem- cell mass of the mammalian blastocyst, are remarkable because plated nucleotide addition, nucleotide editing, nuclear export, they can propagate in vitro indefinitely while retaining both the cellular localization, stability, and translation (Keene, 2007). molecular identity and the pluripotent properties of the peri-im- Overall, little is known about RBPs: most are classified based plantation epiblast.
    [Show full text]
  • PUM1 Represses CDKN1B Translation and Contributes to Prostate Cancer
    medRxiv preprint doi: https://doi.org/10.1101/2021.05.27.21257930; this version posted May 30, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted medRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license . 1 PUM1 represses CDKN1B translation and contributes to prostate cancer 2 progression 3 4 Running title: Translational regulation of prostate cancer 5 6 Xin Li1#, Jian Yang1, 2#, Xia Chen1, Dandan Cao1 and Eugene Yujun Xu1,3* 7 8 1State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 9 211166, China 10 2 Urology Department, The Second Affiliated Hospital of Nanjing Medical University, 11 Nanjing, 211166, China 12 3 Department of Neurology, Feinberg School of Medicine, Northwestern University 13 # Equal contribution 14 Contact: Dr. Eugene Y Xu [email protected] 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 NOTE: This preprint reports new research that has not been certified by peer review and should not be used to guide clinical practice. 30 medRxiv preprint doi: https://doi.org/10.1101/2021.05.27.21257930; this version posted May 30, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted medRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license . 31 Abstract 32 Posttranscriptional regulation of cancer gene expression programs plays a vital role 33 in carcinogenesis; identifying the critical regulators of tumorigenesis and their 34 molecular targets may provide novel strategies for cancer diagnosis and therapeutics.
    [Show full text]
  • Structural Basis for Specific Recognition of Multiple Mrna Targets by a PUF Regulatory Protein
    Structural basis for specific recognition of multiple mRNA targets by a PUF regulatory protein Yeming Wanga, Laura Oppermanb, Marvin Wickensb,1, and Traci M. Tanaka Halla,1 aLaboratory of Structural Biology, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709; and bDepartment of Biochemistry, University of Wisconsin, Madison, WI 53706 Edited by Keith R. Yamamoto, University of California, San Francisco, CA, and approved October 2, 2009 (received for review December 2, 2008) Caenorhabditis elegans fem-3 binding factor (FBF) is a founding association in worm extracts, immunocytochemistry, and genetics member of the PUMILIO/FBF (PUF) family of mRNA regulatory (5, 8, 23–27). FBF is required for maintenance of germline stem proteins. It regulates multiple mRNAs critical for stem cell mainte- cells, a conserved function of PUF proteins (1). FBF maintains stem nance and germline development. Here, we report crystal struc- cells by repressing the expression of differentiation regulators, tures of FBF in complex with 6 different 9-nt RNA sequences, including gld-1, fog-1, lip-1, and mpk-1 (28). In addition, FBF including elements from 4 natural mRNAs. These structures reveal regulates the switch from spermatogenesis to oogenesis by repress- that FBF binds to conserved bases at positions 1–3 and 7–8. The key ing fem-3 mRNA (8). The regulatory elements found in the specificity determinant of FBF vs. other PUF proteins lies in posi- different mRNAs are related, but distinct. PUF proteins coimmu- tions 4–6. In FBF/RNA complexes, these bases stack directly with noprecipitate with many mRNAs in yeast, fly, and human extracts one another and turn away from the RNA-binding surface.
    [Show full text]
  • Spinocerebellar Ataxia: an Update
    Journal of Neurology (2019) 266:533–544 https://doi.org/10.1007/s00415-018-9076-4 NEUROLOGICAL UPDATE Spinocerebellar ataxia: an update Roisin Sullivan1 · Wai Yan Yau1 · Emer O’Connor1 · Henry Houlden1 Received: 27 July 2018 / Revised: 21 September 2018 / Accepted: 25 September 2018 / Published online: 3 October 2018 © The Author(s) 2018 Abstract Spinocerebellar ataxia (SCA) is a heterogeneous group of neurodegenerative ataxic disorders with autosomal dominant inheritance. We aim to provide an update on the recent clinical and scientific progresses in SCA where numerous novel genes have been identified with next-generation sequencing techniques. The main disease mechanisms of these SCAs include toxic RNA gain-of-function, mitochondrial dysfunction, channelopathies, autophagy and transcription dysregulation. Recent stud- ies have also demonstrated the importance of DNA repair pathways in modifying SCA with CAG expansions. In addition, we summarise the latest technological advances in detecting known and novel repeat expansion in SCA. Finally, we discuss the roles of antisense oligonucleotides and RNA-based therapy as potential treatments. Keywords Spinocerebellar ataxia · Molecular diagnosis · Next-generation sequencing Introduction What is new in the epidemiology of SCA and its subtypes? The Spinocerebellar ataxias (SCA) are a subset of hereditary cerebellar ataxias that are autosomal dominantly transmitted. A recent systemic review shows that the global prevalence of They are progressive neurodegenerative diseases that share SCA is 3 in 100,000 [2], however, a wide regional variation the clinical features of ataxia, which arise from the pro- exists. SCA3 is commonest subtype around the globe [3–5], gressive degeneration of the cerebellum but can also affect SCA2 is more prevalent in Cuba than SCA3 whilst SCA7 other connected regions, including the brain stem.
    [Show full text]
  • A 5 Cytosine Binding Pocket in Puf3p Specifies Regulation Of
    A5؅ cytosine binding pocket in Puf3p specifies regulation of mitochondrial mRNAs Deyu Zhua,1, Craig R. Stumpfb,1, Joseph M. Krahna, Marvin Wickensb,2, and Traci M. Tanaka Halla,2 aLaboratory of Structural Biology, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709; and bDepartment of Biochemistry, University of Wisconsin-Madison, Madison, WI 53706 Edited by Keith R. Yamamoto, University of California, San Francisco, CA, and approved October 2, 2009 (received for review November 26, 2008) A single regulatory protein can control the fate of many mRNAs biological importance of the RNA base at the Ϫ2 position for with related functions. The Puf3 protein of Saccharomyces cerevi- regulation in vivo. siae is exemplary, as it binds and regulates more than 100 mRNAs that encode proteins with mitochondrial function. Here we eluci- Results date the structural basis of that specificity. To do so, we explore the General Puf3p Architecture and the Core Region. Crystal structures crystal structures of Puf3p complexes with 2 cognate RNAs. The key of the RNA-binding domain of Puf3p in complex with the determinant of Puf3p specificity is an unusual interaction between COX17 mRNA sequences for binding site A, CUUGUAUAUA, a distinctive pocket of the protein with an RNA base outside the and site B, CCUGUAAAUA (Fig. 1A), were determined at a ‘‘core’’ PUF-binding site. That interaction dramatically affects bind- resolution of 3.2 and 2.5 Å, respectively. Puf3p interacts with the ing affinity in vitro and is required for regulation in vivo. The Puf3p 8 bases of COX17 mRNA starting from the conserved UGUA structures, combined with those of Puf4p in the same organism, sequence much as human Pumilio1 (PUM1) binds to the equiv- illuminate the structural basis of natural PUF-RNA networks.
    [Show full text]
  • A Divergent Pumilio Repeat Protein Family for Pre-Rrna Processing and Mrna Localization
    A divergent Pumilio repeat protein family for pre-rRNA processing and mRNA localization Chen Qiua, Kathleen L. McCannb, Robert N. Winea, Susan J. Basergab,c,d,1, and Traci M. Tanaka Halla,1 aEpigenetics and Stem Cell Biology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709; and Departments of bGenetics, cMolecular Biophysics and Biochemistry, and dTherapeutic Radiology, Yale University School of Medicine, New Haven, CT 06520 Edited by David Baker, University of Washington, Seattle, WA, and approved November 19, 2014 (received for review April 25, 2014) Pumilio/feminization of XX and XO animals (fem)-3 mRNA-binding cell (15). In addition to these functional differences, it is unclear factor (PUF) proteins bind sequence specifically to mRNA targets how these new PUM repeat proteins would interact with target using a single-stranded RNA-binding domain comprising eight RNA. For example, only six PUM repeats are predicted in Puf-A Pumilio (PUM) repeats. PUM repeats have now been identified in and Puf6, and their RNA base-interacting residues are poorly proteins that function in pre-rRNA processing, including human conserved. Puf-A and yeast Puf6. This is a role not previously ascribed to PUF Vertebrate Puf-A functions appear to be important for diseases proteins. Here we present crystal structures of human Puf-A that and embryonic development, but more knowledge is needed to reveal a class of nucleic acid-binding proteins with 11 PUM repeats connect vertebrate morbidities with molecular mechanisms. Human arranged in an “L”-like shape. In contrast to classical PUF proteins, Puf-A changes localization from predominantly nucleolar to nu- Puf-A forms sequence-independent interactions with DNA or RNA, clear when cells are treated with transcriptional or topoisomerase mediated by conserved basic residues.
    [Show full text]
  • Coding RNA Genes
    Review A guide to naming human non-coding RNA genes Ruth L Seal1,2,* , Ling-Ling Chen3, Sam Griffiths-Jones4, Todd M Lowe5, Michael B Mathews6, Dawn O’Reilly7, Andrew J Pierce8, Peter F Stadler9,10,11,12,13, Igor Ulitsky14 , Sandra L Wolin15 & Elspeth A Bruford1,2 Abstract working on non-coding RNA (ncRNA) nomenclature in the mid- 1980s with the approval of initial gene symbols for mitochondrial Research on non-coding RNA (ncRNA) is a rapidly expanding field. transfer RNA (tRNA) genes. Since then, we have worked closely Providing an official gene symbol and name to ncRNA genes brings with experts in the ncRNA field to develop symbols for many dif- order to otherwise potential chaos as it allows unambiguous ferent kinds of ncRNA genes. communication about each gene. The HUGO Gene Nomenclature The number of genes that the HGNC has named per ncRNA class Committee (HGNC, www.genenames.org) is the only group with is shown in Fig 1, and ranges in number from over 4,500 long the authority to approve symbols for human genes. The HGNC ncRNA (lncRNA) genes and over 1,900 microRNA genes, to just four works with specialist advisors for different classes of ncRNA to genes in the vault and Y RNA classes. Every gene symbol has a ensure that ncRNA nomenclature is accurate and informative, Symbol Report on our website, www.genenames.org, which where possible. Here, we review each major class of ncRNA that is displays the gene symbol, gene name, chromosomal location and currently annotated in the human genome and describe how each also includes links to key resources such as Ensembl (Zerbino et al, class is assigned a standardised nomenclature.
    [Show full text]
  • Genomic and Expression Profiling of Human Spermatocytic Seminomas: Primary Spermatocyte As Tumorigenic Precursor and DMRT1 As Candidate Chromosome 9 Gene
    Research Article Genomic and Expression Profiling of Human Spermatocytic Seminomas: Primary Spermatocyte as Tumorigenic Precursor and DMRT1 as Candidate Chromosome 9 Gene Leendert H.J. Looijenga,1 Remko Hersmus,1 Ad J.M. Gillis,1 Rolph Pfundt,4 Hans J. Stoop,1 Ruud J.H.L.M. van Gurp,1 Joris Veltman,1 H. Berna Beverloo,2 Ellen van Drunen,2 Ad Geurts van Kessel,4 Renee Reijo Pera,5 Dominik T. Schneider,6 Brenda Summersgill,7 Janet Shipley,7 Alan McIntyre,7 Peter van der Spek,3 Eric Schoenmakers,4 and J. Wolter Oosterhuis1 1Department of Pathology, Josephine Nefkens Institute; Departments of 2Clinical Genetics and 3Bioinformatics, Erasmus Medical Center/ University Medical Center, Rotterdam, the Netherlands; 4Department of Human Genetics, Radboud University Medical Center, Nijmegen, the Netherlands; 5Howard Hughes Medical Institute, Whitehead Institute and Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts; 6Clinic of Paediatric Oncology, Haematology and Immunology, Heinrich-Heine University, Du¨sseldorf, Germany; 7Molecular Cytogenetics, Section of Molecular Carcinogenesis, The Institute of Cancer Research, Sutton, Surrey, United Kingdom Abstract histochemistry, DMRT1 (a male-specific transcriptional regulator) was identified as a likely candidate gene for Spermatocytic seminomas are solid tumors found solely in the involvement in the development of spermatocytic seminomas. testis of predominantly elderly individuals. We investigated these tumors using a genome-wide analysis for structural and (Cancer Res 2006; 66(1): 290-302) numerical chromosomal changes through conventional kar- yotyping, spectral karyotyping, and array comparative Introduction genomic hybridization using a 32 K genomic tiling-path Spermatocytic seminomas are benign testicular tumors that resolution BAC platform (confirmed by in situ hybridization).
    [Show full text]
  • Pumilio 1 (PUM1) (NM 014676) Human Tagged ORF Clone Lentiviral Particle Product Data
    OriGene Technologies, Inc. 9620 Medical Center Drive, Ste 200 Rockville, MD 20850, US Phone: +1-888-267-4436 [email protected] EU: [email protected] CN: [email protected] Product datasheet for RC201219L2V Pumilio 1 (PUM1) (NM_014676) Human Tagged ORF Clone Lentiviral Particle Product data: Product Type: Lentiviral Particles Product Name: Pumilio 1 (PUM1) (NM_014676) Human Tagged ORF Clone Lentiviral Particle Symbol: PUM1 Synonyms: HSPUM; PUMH; PUMH1; PUML1; SCA47 Vector: pLenti-C-mGFP (PS100071) ACCN: NM_014676 ORF Size: 3558 bp ORF Nucleotide The ORF insert of this clone is exactly the same as(RC201219). Sequence: OTI Disclaimer: The molecular sequence of this clone aligns with the gene accession number as a point of reference only. However, individual transcript sequences of the same gene can differ through naturally occurring variations (e.g. polymorphisms), each with its own valid existence. This clone is substantially in agreement with the reference, but a complete review of all prevailing variants is recommended prior to use. More info OTI Annotation: This clone was engineered to express the complete ORF with an expression tag. Expression varies depending on the nature of the gene. RefSeq: NM_014676.2 RefSeq Size: 5410 bp RefSeq ORF: 3561 bp Locus ID: 9698 UniProt ID: Q14671 Domains: PUF MW: 126.5 kDa This product is to be used for laboratory only. Not for diagnostic or therapeutic use. View online » ©2021 OriGene Technologies, Inc., 9620 Medical Center Drive, Ste 200, Rockville, MD 20850, US 1 / 2 Pumilio 1 (PUM1) (NM_014676) Human Tagged ORF Clone Lentiviral Particle – RC201219L2V Gene Summary: This gene encodes a member of the PUF family, evolutionarily conserved RNA-binding proteins related to the Pumilio proteins of Drosophila and the fem-3 mRNA binding factor proteins of C.
    [Show full text]
  • A Conserved Abundant Cytoplasmic Long Noncoding RNA Modulates Repression by Pumilio Proteins in Human Cells
    ARTICLE Received 25 Nov 2015 | Accepted 13 Jun 2016 | Published 13 Jul 2016 DOI: 10.1038/ncomms12209 OPEN A conserved abundant cytoplasmic long noncoding RNA modulates repression by Pumilio proteins in human cells Ailone Tichon1, Noa Gil1, Yoav Lubelsky1, Tal Havkin Solomon2, Doron Lemze3, Shalev Itzkovitz3, Noam Stern-Ginossar2 & Igor Ulitsky1 Thousands of long noncoding RNA (lncRNA) genes are encoded in the human genome, and hundreds of them are evolutionarily conserved, but their functions and modes of action remain largely obscure. Particularly enigmatic lncRNAs are those that are exported to the cytoplasm, including NORAD—an abundant and highly conserved cytoplasmic lncRNA. Here we show that most of the sequence of NORAD is comprised of repetitive units that together contain at least 17 functional binding sites for the two mammalian Pumilio homologues. Through binding to PUM1 and PUM2, NORAD modulates the mRNA levels of their targets, which are enriched for genes involved in chromosome segregation during cell division. Our results suggest that some cytoplasmic lncRNAs function by modulating the activities of RNA-binding proteins, an activity which positions them at key junctions of cellular signalling pathways. 1 Department of Biological Regulation, Weizmann Institute of Science, Rehovot 76100, Israel. 2 Department of Molecular Genetics, Weizmann Institute of Science, Rehovot 76100, Israel. 3 Department of Molecular Cell Biology,Weizmann Institute of Science, Rehovot 76100, Israel. Correspondence and requests for materials should be addressed to I.U. (email: [email protected]). NATURE COMMUNICATIONS | 7:12209 | DOI: 10.1038/ncomms12209 | www.nature.com/naturecommunications 1 ARTICLE NATURE COMMUNICATIONS | DOI: 10.1038/ncomms12209 enomic studies conducted over the past 15 years have Pumilio targets, in particular those involved in mitotic progres- uncovered the intriguing complexity of the transcriptome sion.
    [Show full text]
  • ALDH1A3-Regulated Long Non-Coding RNA NRAD1 Is a Potential Novel Target for Triple-Negative Breast Tumors and Cancer Stem Cells
    Cell Death & Differentiation (2020) 27:363–378 https://doi.org/10.1038/s41418-019-0362-1 ARTICLE ALDH1A3-regulated long non-coding RNA NRAD1 is a potential novel target for triple-negative breast tumors and cancer stem cells 1 1 2 1 1 Dejan Vidovic ● Thomas T. Huynh ● Prathyusha Konda ● Cheryl Dean ● Brianne M. Cruickshank ● 1 1 1,2 1,2 Mohammad Sultan ● Krysta M. Coyle ● Shashi Gujar ● Paola Marcato Received: 20 November 2018 / Revised: 4 May 2019 / Accepted: 27 May 2019 / Published online: 13 June 2019 © The Author(s) 2019. This article is published with open access Abstract To discover novel therapeutic targets for triple-negative breast cancer (TNBC) and cancer stem cells (CSCs), we screened long non-coding RNAs (lncRNAs) most enriched in TNBCs for high expression in CSCs defined by high Aldefluor activity and associated with worse patient outcomes. This led to the identification of non-coding RNA in the aldehyde dehydrogenase 1 A pathway (NRAD1), also known as LINC00284. Targeting NRAD1 in TNBC tumors using antisense oligonucleotides reduced cell survival, tumor growth, and the number of cells with CSC characteristics. Expression of NRAD1 is regulated by an enzyme that causes Aldefluor activity in CSCs, aldehyde dehydrogenase 1A3 (ALDH1A3) and its product retinoic acid. Cellular fractionation revealed that NRAD1 is primarily nuclear localized, which suggested a potential function in gene regulation. This was confirmed by transcriptome profiling and chromatin isolation by RNA purification, followed by sequencing (ChIRP-seq), which demonstrated that NRAD1 has enriched chromatin interactions among the genes it regulates. Gene Ontology enrichment analysis revealed that NRAD1 regulates expression of genes involved in differentiation and catabolic processes.
    [Show full text]