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  • Cell Line  (41)
  • American Association for the Advancement of Science (AAAS)  (41)
  • EMBO Press
  • Essen : Verl. Glückauf
  • Krefeld : Geologischer Dienst Nordhein-Westfalen
  • 2010-2014  (41)
  • 2005-2009
  • 2011  (41)
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (41)
  • EMBO Press
  • Essen : Verl. Glückauf
  • Krefeld : Geologischer Dienst Nordhein-Westfalen
  • Nature Publishing Group (NPG)  (66)
Years
  • 2010-2014  (41)
  • 2005-2009
Year
  • 1
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    Association of TALS developmental disorder with defect in minor splicing component U4atac snRNA (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-04-09
    Description: The spliceosome, a ribonucleoprotein complex that includes proteins and small nuclear RNAs (snRNAs), catalyzes RNA splicing through intron excision and exon ligation to produce mature messenger RNAs, which, in turn serve as templates for protein translation. We identified four point mutations in the U4atac snRNA component of the minor spliceosome in patients with brain and bone malformations and unexplained postnatal death [microcephalic osteodysplastic primordial dwarfism type 1 (MOPD 1) or Taybi-Linder syndrome (TALS); Mendelian Inheritance in Man ID no. 210710]. Expression of a subgroup of genes, possibly linked to the disease phenotype, and minor intron splicing were affected in cell lines derived from TALS patients. Our findings demonstrate a crucial role of the minor spliceosome component U4atac snRNA in early human development and postnatal survival.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Edery, Patrick -- Marcaillou, Charles -- Sahbatou, Mourad -- Labalme, Audrey -- Chastang, Joelle -- Touraine, Renaud -- Tubacher, Emmanuel -- Senni, Faiza -- Bober, Michael B -- Nampoothiri, Sheela -- Jouk, Pierre-Simon -- Steichen, Elisabeth -- Berland, Siren -- Toutain, Annick -- Wise, Carol A -- Sanlaville, Damien -- Rousseau, Francis -- Clerget-Darpoux, Francoise -- Leutenegger, Anne-Louise -- New York, N.Y. -- Science. 2011 Apr 8;332(6026):240-3. doi: 10.1126/science.1202205.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Hospices Civils de Lyon, Service de Cytogenetique Constitutionnelle, Bron, F-69677, France. patrick.edery@chu-lyon.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21474761" target="_blank"〉PubMed〈/a〉
    Keywords: Base Pairing ; Cell Line ; Child, Preschool ; Chromosomes, Human, Pair 2/genetics ; Dwarfism/genetics/metabolism ; Female ; Fetal Growth Retardation/genetics/metabolism ; Humans ; Infant ; Introns ; Inverted Repeat Sequences ; Male ; Microcephaly/genetics/metabolism ; Microtubule-Associated Proteins/genetics ; Nucleic Acid Conformation ; Osteochondrodysplasias/genetics/metabolism ; Pedigree ; *Point Mutation ; RNA Splice Sites ; *RNA Splicing ; RNA, Small Nuclear/chemistry/*genetics/metabolism ; Spliceosomes/*genetics/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
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    Spatial coupling of mTOR and autophagy augments secretory phenotypes (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-04-23
    Description: Protein synthesis and autophagic degradation are regulated in an opposite manner by mammalian target of rapamycin (mTOR), whereas under certain conditions it would be beneficial if they occurred in unison to handle rapid protein turnover. We observed a distinct cellular compartment at the trans side of the Golgi apparatus, the TOR-autophagy spatial coupling compartment (TASCC), where (auto)lysosomes and mTOR accumulated during Ras-induced senescence. mTOR recruitment to the TASCC was amino acid- and Rag guanosine triphosphatase-dependent, and disruption of mTOR localization to the TASCC suppressed interleukin-6/8 synthesis. TASCC formation was observed during macrophage differentiation and in glomerular podocytes; both displayed increased protein secretion. The spatial coupling of cells' catabolic and anabolic machinery could augment their respective functions and facilitate the mass synthesis of secretory proteins.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3426290/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3426290/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Narita, Masako -- Young, Andrew R J -- Arakawa, Satoko -- Samarajiwa, Shamith A -- Nakashima, Takayuki -- Yoshida, Sei -- Hong, Sungki -- Berry, Lorraine S -- Reichelt, Stefanie -- Ferreira, Manuela -- Tavare, Simon -- Inoki, Ken -- Shimizu, Shigeomi -- Narita, Masashi -- DK083491/DK/NIDDK NIH HHS/ -- R01 DK083491/DK/NIDDK NIH HHS/ -- R01 DK083491-03/DK/NIDDK NIH HHS/ -- Cancer Research UK/United Kingdom -- New York, N.Y. -- Science. 2011 May 20;332(6032):966-70. doi: 10.1126/science.1205407. Epub 2011 Apr 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cancer Research UK Cambridge Research Institute (CRI), Li Ka Shing Centre, Robinson Way, Cambridge CB2 0RE, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21512002" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acids/metabolism ; Animals ; *Autophagy ; *Cell Aging ; Cell Line ; Cytoplasm/metabolism ; Cytoplasmic Vesicles/*metabolism/ultrastructure ; Endoplasmic Reticulum, Rough/ultrastructure ; Genes, ras ; Golgi Apparatus/ultrastructure ; HL-60 Cells ; Humans ; Interleukin-6/metabolism ; Interleukin-8/metabolism ; Lysosomes/metabolism/ultrastructure ; Mice ; Monomeric GTP-Binding Proteins/genetics/metabolism ; Nocodazole/pharmacology ; Phagosomes/metabolism/ultrastructure ; Phenotype ; Podocytes/metabolism/ultrastructure ; Protein Biosynthesis ; Proteins/*secretion ; TOR Serine-Threonine Kinases/*metabolism ; Vacuoles/ultrastructure ; trans-Golgi Network/metabolism/ultrastructure
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    Tet proteins can convert 5-methylcytosine to 5-formylcytosine and 5-carboxylcytosine (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-07-23
    Description: 5-methylcytosine (5mC) in DNA plays an important role in gene expression, genomic imprinting, and suppression of transposable elements. 5mC can be converted to 5-hydroxymethylcytosine (5hmC) by the Tet (ten eleven translocation) proteins. Here, we show that, in addition to 5hmC, the Tet proteins can generate 5-formylcytosine (5fC) and 5-carboxylcytosine (5caC) from 5mC in an enzymatic activity-dependent manner. Furthermore, we reveal the presence of 5fC and 5caC in genomic DNA of mouse embryonic stem cells and mouse organs. The genomic content of 5hmC, 5fC, and 5caC can be increased or reduced through overexpression or depletion of Tet proteins. Thus, we identify two previously unknown cytosine derivatives in genomic DNA as the products of Tet proteins. Our study raises the possibility that DNA demethylation may occur through Tet-catalyzed oxidation followed by decarboxylation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3495246/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3495246/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ito, Shinsuke -- Shen, Li -- Dai, Qing -- Wu, Susan C -- Collins, Leonard B -- Swenberg, James A -- He, Chuan -- Zhang, Yi -- GM071440/GM/NIGMS NIH HHS/ -- GM68804/GM/NIGMS NIH HHS/ -- P30 ES010126/ES/NIEHS NIH HHS/ -- P30 ES010126-11/ES/NIEHS NIH HHS/ -- P30ES10126/ES/NIEHS NIH HHS/ -- P42 ES005948/ES/NIEHS NIH HHS/ -- P42 ES005948-17/ES/NIEHS NIH HHS/ -- P42ES5948/ES/NIEHS NIH HHS/ -- R01 GM068804/GM/NIGMS NIH HHS/ -- U01 DK089565/DK/NIDDK NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Sep 2;333(6047):1300-3. doi: 10.1126/science.1210597. Epub 2011 Jul 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Biochemistry and Biophysics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7295, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21778364" target="_blank"〉PubMed〈/a〉
    Keywords: 5-Methylcytosine/*metabolism ; Animals ; Cell Line ; Cytosine/*analogs & derivatives/metabolism ; DNA/*metabolism ; DNA Methylation ; DNA-Binding Proteins/genetics/*metabolism ; Embryonic Stem Cells/metabolism ; Humans ; Mice ; Oxidation-Reduction ; Proto-Oncogene Proteins/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Cleavage of NIK by the API2-MALT1 fusion oncoprotein leads to noncanonical NF-kappaB activation (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-01-29
    Description: Proper regulation of nuclear factor kappaB (NF-kappaB) transcriptional activity is required for normal lymphocyte function, and deregulated NF-kappaB signaling can facilitate lymphomagenesis. We demonstrate that the API2-MALT1 fusion oncoprotein created by the recurrent t(11;18)(q21;q21) in mucosa-associated lymphoid tissue (MALT) lymphoma induces proteolytic cleavage of NF-kappaB-inducing kinase (NIK) at arginine 325. NIK cleavage requires the concerted actions of both fusion partners and generates a C-terminal NIK fragment that retains kinase activity and is resistant to proteasomal degradation. The resulting deregulated NIK activity is associated with constitutive noncanonical NF-kappaB signaling, enhanced B cell adhesion, and apoptosis resistance. Our study reveals the gain-of-function proteolytic activity of a fusion oncoprotein and highlights the importance of the noncanonical NF-kappaB pathway in B lymphoproliferative disease.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3124150/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3124150/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rosebeck, Shaun -- Madden, Lisa -- Jin, Xiaohong -- Gu, Shufang -- Apel, Ingrid J -- Appert, Alex -- Hamoudi, Rifat A -- Noels, Heidi -- Sagaert, Xavier -- Van Loo, Peter -- Baens, Mathijs -- Du, Ming-Qing -- Lucas, Peter C -- McAllister-Lucas, Linda M -- R01 CA124540/CA/NCI NIH HHS/ -- R01 CA124540-04/CA/NCI NIH HHS/ -- R01 HL082914/HL/NHLBI NIH HHS/ -- R01CA124540/CA/NCI NIH HHS/ -- T32-HD07513/HD/NICHD NIH HHS/ -- T32-HL007622-21A2/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2011 Jan 28;331(6016):468-72. doi: 10.1126/science.1198946.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatrics and Communicable Diseases, University of Michigan, 1150 West Medical Center Drive, Ann Arbor, MI 48109, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21273489" target="_blank"〉PubMed〈/a〉
    Keywords: Apoptosis ; B-Lymphocytes/*metabolism ; Cell Adhesion ; Cell Line ; Cell Line, Tumor ; Gene Expression Regulation, Neoplastic ; Humans ; I-kappa B Kinase/metabolism ; Lymphoma, B-Cell, Marginal Zone/genetics/*metabolism ; NF-kappa B/*metabolism ; NF-kappa B p52 Subunit/metabolism ; Oncogene Proteins, Fusion/chemistry/genetics/*metabolism ; Phosphorylation ; Protein Structure, Tertiary ; Protein-Serine-Threonine Kinases/genetics/*metabolism ; Proto-Oncogene Proteins/genetics/metabolism ; Signal Transduction ; Substrate Specificity
    Print ISSN: 0036-8075
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  • 5
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    Nectins establish a checkerboard-like cellular pattern in the auditory epithelium (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-07-30
    Description: In the auditory epithelium of the cochlea, the sensory hair cells and supporting cells are arranged in a checkerboard-like fashion, but the mechanism underlying this cellular patterning is unclear. We found that mouse hair cells and supporting cells express the immunoglobulin-like adhesion molecules nectin-1 and -3, respectively, and that their interaction mediates the heterotypic adhesion between these two cell types. Genetic removal of nectin-1 or -3 disrupted the checkerboard-like pattern, inducing aberrant attachment between hair cells. When cells expressing either nectin-1 or -3 were cocultured, they arranged themselves into a mosaic pattern. Thus, nectin-1 and -3 promote the formation of the checkerboard-like pattern of the auditory epithelia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Togashi, Hideru -- Kominami, Kanoko -- Waseda, Masazumi -- Komura, Hitomi -- Miyoshi, Jun -- Takeichi, Masatoshi -- Takai, Yoshimi -- New York, N.Y. -- Science. 2011 Aug 26;333(6046):1144-7. doi: 10.1126/science.1208467. Epub 2011 Jul 28.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Molecular and Cellular Biology, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21798896" target="_blank"〉PubMed〈/a〉
    Keywords: Adherens Junctions/metabolism ; Animals ; *Cell Adhesion ; Cell Adhesion Molecules/genetics/*metabolism ; Cell Differentiation ; Cell Line ; Coculture Techniques ; HEK293 Cells ; Hair Cells, Auditory/*cytology/*metabolism ; Humans ; Mice ; Mice, Knockout ; Organ of Corti/*cytology/*metabolism ; Phenotype ; Protein Binding ; RNA, Messenger/genetics/metabolism
    Print ISSN: 0036-8075
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  • 6
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    Widespread RNA and DNA sequence differences in the human transcriptome (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-05-21
    Description: The transmission of information from DNA to RNA is a critical process. We compared RNA sequences from human B cells of 27 individuals to the corresponding DNA sequences from the same individuals and uncovered more than 10,000 exonic sites where the RNA sequences do not match that of the DNA. All 12 possible categories of discordances were observed. These differences were nonrandom as many sites were found in multiple individuals and in different cell types, including primary skin cells and brain tissues. Using mass spectrometry, we detected peptides that are translated from the discordant RNA sequences and thus do not correspond exactly to the DNA sequences. These widespread RNA-DNA differences in the human transcriptome provide a yet unexplored aspect of genome variation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3204392/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3204392/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Mingyao -- Wang, Isabel X -- Li, Yun -- Bruzel, Alan -- Richards, Allison L -- Toung, Jonathan M -- Cheung, Vivian G -- R01 HG005854/HG/NHGRI NIH HHS/ -- R01 HG005854-01/HG/NHGRI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Jul 1;333(6038):53-8. doi: 10.1126/science.1207018. Epub 2011 May 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biostatistics, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21596952" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; Amino Acid Sequence ; B-Lymphocytes ; Base Sequence ; Cell Line ; Cerebral Cortex/cytology ; DNA/chemistry/*genetics ; Exons ; Expressed Sequence Tags ; Fibroblasts ; Gene Expression Profiling ; *Genetic Variation ; *Genome, Human ; Genotype ; Humans ; Mass Spectrometry ; Middle Aged ; Molecular Sequence Data ; Polymorphism, Single Nucleotide ; Protein Biosynthesis ; Proteins/chemistry ; Proteome/chemistry ; RNA, Messenger/chemistry/*genetics ; Sequence Analysis, DNA ; Sequence Analysis, RNA ; Skin/cytology ; Untranslated Regions
    Print ISSN: 0036-8075
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  • 7
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    Selective inhibition of a regulatory subunit of protein phosphatase 1 restores proteostasis (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-03-10
    Description: Many biological processes are regulated through the selective dephosphorylation of proteins. Protein serine-threonine phosphatases are assembled from catalytic subunits bound to diverse regulatory subunits that provide substrate specificity and subcellular localization. We describe a small molecule, guanabenz, that bound to a regulatory subunit of protein phosphatase 1, PPP1R15A/GADD34, selectively disrupting the stress-induced dephosphorylation of the alpha subunit of translation initiation factor 2 (eIF2alpha). Without affecting the related PPP1R15B-phosphatase complex and constitutive protein synthesis, guanabenz prolonged eIF2alpha phosphorylation in human stressed cells, adjusting the protein production rates to levels manageable by available chaperones. This favored protein folding and thereby rescued cells from protein misfolding stress. Thus, regulatory subunits of phosphatases are drug targets, a property used here to restore proteostasis in stressed cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tsaytler, Pavel -- Harding, Heather P -- Ron, David -- Bertolotti, Anne -- 084812/Wellcome Trust/United Kingdom -- MC_U105185860/Medical Research Council/United Kingdom -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2011 Apr 1;332(6025):91-4. doi: 10.1126/science.1201396. Epub 2011 Mar 3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉MRC Laboratory of Molecular Biology, Hills Road, Cambridge CB2 0QH, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21385720" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenergic alpha-2 Receptor Agonists/*pharmacology ; Catalytic Domain/drug effects ; Cell Line ; Clonidine/pharmacology ; Endoplasmic Reticulum/drug effects/metabolism ; Enzyme Inhibitors/*pharmacology ; Eukaryotic Initiation Factor-2/metabolism ; Guanabenz/*pharmacology ; HeLa Cells ; Homeostasis ; Humans ; Molecular Chaperones/metabolism ; Phosphorylation ; Protein Biosynthesis/drug effects ; Protein Folding/drug effects ; Protein Phosphatase 1/*antagonists & inhibitors/metabolism ; Protein Subunits/drug effects/metabolism ; Proteins/metabolism ; Stress, Physiological ; Tunicamycin
    Print ISSN: 0036-8075
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  • 8
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    K+ channel mutations in adrenal aldosterone-producing adenomas and hereditary hypertension (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-02-12
    Description: Endocrine tumors such as aldosterone-producing adrenal adenomas (APAs), a cause of severe hypertension, feature constitutive hormone production and unrestrained cell proliferation; the mechanisms linking these events are unknown. We identify two recurrent somatic mutations in and near the selectivity filter of the potassium (K(+)) channel KCNJ5 that are present in 8 of 22 human APAs studied. Both produce increased sodium (Na(+)) conductance and cell depolarization, which in adrenal glomerulosa cells produces calcium (Ca(2+)) entry, the signal for aldosterone production and cell proliferation. Similarly, we identify an inherited KCNJ5 mutation that produces increased Na(+) conductance in a Mendelian form of severe aldosteronism and massive bilateral adrenal hyperplasia. These findings explain pathogenesis in a subset of patients with severe hypertension and implicate loss of K(+) channel selectivity in constitutive cell proliferation and hormone production.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3371087/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3371087/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Choi, Murim -- Scholl, Ute I -- Yue, Peng -- Bjorklund, Peyman -- Zhao, Bixiao -- Nelson-Williams, Carol -- Ji, Weizhen -- Cho, Yoonsang -- Patel, Aniruddh -- Men, Clara J -- Lolis, Elias -- Wisgerhof, Max V -- Geller, David S -- Mane, Shrikant -- Hellman, Per -- Westin, Gunnar -- Akerstrom, Goran -- Wang, Wenhui -- Carling, Tobias -- Lifton, Richard P -- DK54983/DK/NIDDK NIH HHS/ -- K01 AR060300/AR/NIAMS NIH HHS/ -- T32 GM007205/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Feb 11;331(6018):768-72. doi: 10.1126/science.1198785.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Howard Hughes Medical Institute, Yale University School of Medicine, New Haven, CT 06510, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21311022" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenal Cortex Neoplasms/*genetics/metabolism/pathology ; Adrenal Glands/pathology ; Adrenocortical Adenoma/*genetics/metabolism/pathology ; Aldosterone/*metabolism ; Cell Line ; Cell Proliferation ; Female ; G Protein-Coupled Inwardly-Rectifying Potassium ; Channels/chemistry/*genetics/metabolism ; Humans ; Hyperaldosteronism/*genetics/metabolism/pathology ; Hyperplasia ; Hypertension/*genetics/metabolism ; Male ; Mutant Proteins/chemistry/genetics/metabolism ; *Mutation ; Potassium/metabolism ; Protein Multimerization ; Sodium/metabolism ; Zona Glomerulosa/metabolism/pathology
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
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    Cartilage acidic protein-1B (LOTUS), an endogenous Nogo receptor antagonist for axon tract formation (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-08-06
    Description: Neural circuitry formation depends on the molecular control of axonal projection during development. By screening with fluorophore-assisted light inactivation in the developing mouse brain, we identified cartilage acidic protein-1B as a key molecule for lateral olfactory tract (LOT) formation and named it LOT usher substance (LOTUS). We further identified Nogo receptor-1 (NgR1) as a LOTUS-binding protein. NgR1 is a receptor of myelin-derived axon growth inhibitors, such as Nogo, which prevent neural regeneration in the adult. LOTUS suppressed Nogo-NgR1 binding and Nogo-induced growth cone collapse. A defasciculated LOT was present in lotus-deficient mice but not in mice lacking both lotus- and ngr1. These findings suggest that endogenous antagonism of NgR1 by LOTUS is crucial for normal LOT formation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3244695/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3244695/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sato, Yasufumi -- Iketani, Masumi -- Kurihara, Yuji -- Yamaguchi, Megumi -- Yamashita, Naoya -- Nakamura, Fumio -- Arie, Yuko -- Kawasaki, Takahiko -- Hirata, Tatsumi -- Abe, Takaya -- Kiyonari, Hiroshi -- Strittmatter, Stephen M -- Goshima, Yoshio -- Takei, Kohtaro -- R37 NS033020/NS/NINDS NIH HHS/ -- R37 NS033020-19/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2011 Aug 5;333(6043):769-73. doi: 10.1126/science.1204144.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Pharmacology and Neurobiology, Yokohama City University Graduate School of Medicine, Yokohama 236-0004, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21817055" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/*physiology ; Binding Sites ; Calcium-Binding Proteins/chemistry/genetics/*metabolism ; Cell Line ; Cells, Cultured ; GPI-Linked Proteins/genetics/metabolism ; Growth Cones/metabolism ; Humans ; Immunohistochemistry ; Ligands ; Mice ; Mice, Inbred ICR ; Myelin Proteins/genetics/*metabolism ; Olfactory Pathways/*cytology/*growth & development/metabolism ; Prosencephalon/embryology/metabolism ; Protein Binding ; Receptors, Cell Surface/genetics/*metabolism ; Signal Transduction
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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    Embryonic stem cells. Researchers mull impact of Geron's sudden exit from field (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-11-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaiser, Jocelyn -- New York, N.Y. -- Science. 2011 Nov 25;334(6059):1043. doi: 10.1126/science.334.6059.1043.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22116849" target="_blank"〉PubMed〈/a〉
    Keywords: *Biotechnology/economics/manpower ; California ; Cell Line ; Clinical Trials as Topic ; Embryonic Stem Cells/*cytology ; Humans ; Neural Stem Cells/*transplantation ; Neurogenesis ; Oligodendroglia/*cytology/transplantation ; Spinal Cord Injuries/*therapy ; *Stem Cell Transplantation
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 11
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    Suppression of avian influenza transmission in genetically modified chickens (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-01-15
    Description: Infection of chickens with avian influenza virus poses a global threat to both poultry production and human health that is not adequately controlled by vaccination or by biosecurity measures. A novel alternative strategy is to develop chickens that are genetically resistant to infection. We generated transgenic chickens expressing a short-hairpin RNA designed to function as a decoy that inhibits and blocks influenza virus polymerase and hence interferes with virus propagation. Susceptibility to primary challenge with highly pathogenic avian influenza virus and onward transmission dynamics were determined. Although the transgenic birds succumbed to the initial experimental challenge, onward transmission to both transgenic and nontransgenic birds was prevented.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lyall, Jon -- Irvine, Richard M -- Sherman, Adrian -- McKinley, Trevelyan J -- Nunez, Alejandro -- Purdie, Auriol -- Outtrim, Linzy -- Brown, Ian H -- Rolleston-Smith, Genevieve -- Sang, Helen -- Tiley, Laurence -- BB/G00479X/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- BBS/B/00239/Biotechnology and Biological Sciences Research Council/United Kingdom -- BBS/B/00301/Biotechnology and Biological Sciences Research Council/United Kingdom -- New York, N.Y. -- Science. 2011 Jan 14;331(6014):223-6. doi: 10.1126/science.1198020.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Veterinary Medicine, University of Cambridge, Madingley Road, Cambridge CB3 0ES, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21233391" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Animals, Genetically Modified ; Cell Line ; Chickens/*genetics/virology ; Cloaca/virology ; Influenza A Virus, H5N1 Subtype/enzymology/isolation & purification/*physiology ; Influenza in Birds/*prevention & control/*transmission/virology ; Oropharynx/virology ; RNA Replicase/antagonists & inhibitors/genetics/metabolism ; RNA, Small Interfering/*genetics/metabolism ; RNA, Viral/analysis/genetics/metabolism ; Transfection ; Virus Replication ; Virus Shedding
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 12
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    Conserved eukaryotic fusogens can fuse viral envelopes to cells (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-03-26
    Description: Caenorhabditis elegans proteins AFF-1 and EFF-1 [C. elegans fusion family (CeFF) proteins] are essential for developmental cell-to-cell fusion and can merge insect cells. To study the structure and function of AFF-1, we constructed vesicular stomatitis virus (VSV) displaying AFF-1 on the viral envelope, substituting the native fusogen VSV glycoprotein. Electron microscopy and tomography revealed that AFF-1 formed distinct supercomplexes resembling pentameric and hexameric "flowers" on pseudoviruses. Viruses carrying AFF-1 infected mammalian cells only when CeFFs were on the target cell surface. Furthermore, we identified fusion family (FF) proteins within and beyond nematodes, and divergent members from the human parasitic nematode Trichinella spiralis and the chordate Branchiostoma floridae could also fuse mammalian cells. Thus, FF proteins are part of an ancient family of cellular fusogens that can promote fusion when expressed on a viral particle.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3084904/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3084904/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Avinoam, Ori -- Fridman, Karen -- Valansi, Clari -- Abutbul, Inbal -- Zeev-Ben-Mordehai, Tzviya -- Maurer, Ulrike E -- Sapir, Amir -- Danino, Dganit -- Grunewald, Kay -- White, Judith M -- Podbilewicz, Benjamin -- 090532/Wellcome Trust/United Kingdom -- 090895/Wellcome Trust/United Kingdom -- AI22470/AI/NIAID NIH HHS/ -- R01 AI022470/AI/NIAID NIH HHS/ -- R01 AI022470-24/AI/NIAID NIH HHS/ -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2011 Apr 29;332(6029):589-92. doi: 10.1126/science.1202333. Epub 2011 Mar 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Technion-Israel Institute of Technology, Haifa 32000, Israel.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21436398" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Arthropods/chemistry ; Biological Evolution ; Caenorhabditis elegans/chemistry ; Caenorhabditis elegans Proteins/chemistry/genetics/*metabolism/ultrastructure ; *Cell Fusion ; Cell Line ; Cell Membrane/*metabolism ; Chordata, Nonvertebrate/chemistry ; Ctenophora/chemistry ; *Membrane Fusion ; Membrane Glycoproteins/chemistry/genetics/*metabolism ; Molecular Sequence Data ; Naegleria fowleri/chemistry ; Nematoda/chemistry ; Recombinant Proteins/metabolism ; Recombination, Genetic ; Vesicular stomatitis Indiana virus/genetics/*physiology/ultrastructure ; Viral Envelope Proteins/metabolism
    Print ISSN: 0036-8075
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  • 13
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    A key enzyme in the biogenesis of lysosomes is a protease that regulates cholesterol metabolism (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-07-02
    Description: Mucolipidosis II is a severe lysosomal storage disorder caused by defects in the alpha and beta subunits of the hexameric N-acetylglucosamine-1-phosphotransferase complex essential for the formation of the mannose 6-phosphate targeting signal on lysosomal enzymes. Cleavage of the membrane-bound alpha/beta-subunit precursor by an unknown protease is required for catalytic activity. Here we found that the alpha/beta-subunit precursor is cleaved by the site-1 protease (S1P) that activates sterol regulatory element-binding proteins in response to cholesterol deprivation. S1P-deficient cells failed to activate the alpha/beta-subunit precursor and exhibited a mucolipidosis II-like phenotype. Thus, S1P functions in the biogenesis of lysosomes, and lipid-independent phenotypes of S1P deficiency may be caused by lysosomal dysfunction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marschner, Katrin -- Kollmann, Katrin -- Schweizer, Michaela -- Braulke, Thomas -- Pohl, Sandra -- New York, N.Y. -- Science. 2011 Jul 1;333(6038):87-90. doi: 10.1126/science.1205677.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Children's Hospital, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21719679" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; CHO Cells ; Cell Line ; Cholesterol/*metabolism ; Chondrocytes/cytology ; Cricetinae ; Cricetulus ; Enzyme Precursors/chemistry/*metabolism ; HeLa Cells ; Humans ; Lipid Metabolism ; Lysosomes/enzymology/*metabolism/ultrastructure ; Mannosephosphates/metabolism ; Mice ; Morphogenesis ; Mucolipidoses/enzymology/genetics/metabolism/pathology ; N-Acetylgalactosamine-4-Sulfatase/metabolism ; Osteogenesis ; Proprotein Convertases/genetics/*metabolism ; Protein Subunits/chemistry/metabolism ; RNA, Small Interfering ; Serine Endopeptidases/genetics/*metabolism ; Transferases (Other Substituted Phosphate Groups)/chemistry/*metabolism
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 14
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    A potent and broad neutralizing antibody recognizes and penetrates the HIV glycan shield (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-10-15
    Description: The HIV envelope (Env) protein gp120 is protected from antibody recognition by a dense glycan shield. However, several of the recently identified PGT broadly neutralizing antibodies appear to interact directly with the HIV glycan coat. Crystal structures of antigen-binding fragments (Fabs) PGT 127 and 128 with Man(9) at 1.65 and 1.29 angstrom resolution, respectively, and glycan binding data delineate a specific high mannose-binding site. Fab PGT 128 complexed with a fully glycosylated gp120 outer domain at 3.25 angstroms reveals that the antibody penetrates the glycan shield and recognizes two conserved glycans as well as a short beta-strand segment of the gp120 V3 loop, accounting for its high binding affinity and broad specificity. Furthermore, our data suggest that the high neutralization potency of PGT 127 and 128 immunoglobulin Gs may be mediated by cross-linking Env trimers on the viral surface.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3280215/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3280215/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pejchal, Robert -- Doores, Katie J -- Walker, Laura M -- Khayat, Reza -- Huang, Po-Ssu -- Wang, Sheng-Kai -- Stanfield, Robyn L -- Julien, Jean-Philippe -- Ramos, Alejandra -- Crispin, Max -- Depetris, Rafael -- Katpally, Umesh -- Marozsan, Andre -- Cupo, Albert -- Maloveste, Sebastien -- Liu, Yan -- McBride, Ryan -- Ito, Yukishige -- Sanders, Rogier W -- Ogohara, Cassandra -- Paulson, James C -- Feizi, Ten -- Scanlan, Christopher N -- Wong, Chi-Huey -- Moore, John P -- Olson, William C -- Ward, Andrew B -- Poignard, Pascal -- Schief, William R -- Burton, Dennis R -- Wilson, Ian A -- AI082362/AI/NIAID NIH HHS/ -- AI33292/AI/NIAID NIH HHS/ -- AI74372/AI/NIAID NIH HHS/ -- AI84817/AI/NIAID NIH HHS/ -- F32 AI074372-03/AI/NIAID NIH HHS/ -- HFE-224662/Canadian Institutes of Health Research/Canada -- P01 AI082362/AI/NIAID NIH HHS/ -- P01 AI082362-03/AI/NIAID NIH HHS/ -- P01 AI082362-04/AI/NIAID NIH HHS/ -- P41RR001209/RR/NCRR NIH HHS/ -- R01 AI033292/AI/NIAID NIH HHS/ -- R01 AI033292-14/AI/NIAID NIH HHS/ -- R01 AI084817/AI/NIAID NIH HHS/ -- R01 AI084817-04/AI/NIAID NIH HHS/ -- RR017573/RR/NCRR NIH HHS/ -- U01 CA128416/CA/NCI NIH HHS/ -- Y1-CO-1020/CO/NCI NIH HHS/ -- Y1-GM-1104/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2011 Nov 25;334(6059):1097-103. doi: 10.1126/science.1213256. Epub 2011 Oct 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Skaggs Institute for Chemical Biology and International AIDS Vaccine Initiative (IAVI) Neutralizing Antibody Center, nhe Scripps Research Institute, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21998254" target="_blank"〉PubMed〈/a〉
    Keywords: Antibodies, Neutralizing/chemistry/genetics/*immunology/metabolism ; Antibody Specificity ; Binding Sites, Antibody ; Carbohydrate Conformation ; Cell Line ; Crystallography, X-Ray ; Disaccharides/chemistry/metabolism ; Epitopes ; Glycosylation ; HIV Antibodies/chemistry/genetics/*immunology/*metabolism ; HIV Envelope Protein gp120/chemistry/*immunology/metabolism ; HIV-1/*immunology/physiology ; Humans ; Hydrogen Bonding ; Immunoglobulin Fab Fragments/chemistry/immunology/metabolism ; Mannose/chemistry/immunology/metabolism ; Mannosides/chemistry/metabolism ; Models, Molecular ; Mutation ; Oligosaccharides/chemistry/*immunology/metabolism ; Polysaccharides/chemistry/*immunology/*metabolism ; Protein Conformation ; Protein Structure, Tertiary
    Print ISSN: 0036-8075
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    The leukemogenicity of AML1-ETO is dependent on site-specific lysine acetylation (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-07-19
    Description: The chromosomal translocations found in acute myelogenous leukemia (AML) generate oncogenic fusion transcription factors with aberrant transcriptional regulatory properties. Although therapeutic targeting of most leukemia fusion proteins remains elusive, the posttranslational modifications that control their function could be targetable. We found that AML1-ETO, the fusion protein generated by the t(8;21) translocation, is acetylated by the transcriptional coactivator p300 in leukemia cells isolated from t(8;21) AML patients, and that this acetylation is essential for its self-renewal-promoting effects in human cord blood CD34(+) cells and its leukemogenicity in mouse models. Inhibition of p300 abrogates the acetylation of AML1-ETO and impairs its ability to promote leukemic transformation. Thus, lysine acetyltransferases represent a potential therapeutic target in AML.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3251012/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3251012/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Lan -- Gural, Alexander -- Sun, Xiao-Jian -- Zhao, Xinyang -- Perna, Fabiana -- Huang, Gang -- Hatlen, Megan A -- Vu, Ly -- Liu, Fan -- Xu, Haiming -- Asai, Takashi -- Xu, Hao -- Deblasio, Tony -- Menendez, Silvia -- Voza, Francesca -- Jiang, Yanwen -- Cole, Philip A -- Zhang, Jinsong -- Melnick, Ari -- Roeder, Robert G -- Nimer, Stephen D -- GM62437/GM/NIGMS NIH HHS/ -- R01 GM062437/GM/NIGMS NIH HHS/ -- R01 GM062437-12/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2011 Aug 5;333(6043):765-9. doi: 10.1126/science.1201662. Epub 2011 Jul 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Pharmacology and Chemistry Program, Sloan-Kettering Institute, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21764752" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylation ; Animals ; Cell Line ; Cell Line, Tumor ; *Cell Transformation, Neoplastic ; Core Binding Factor Alpha 2 Subunit/chemistry/*metabolism ; E1A-Associated p300 Protein/antagonists & inhibitors/*metabolism ; Fetal Blood/cytology ; Gene Expression Profiling ; Hematopoietic Stem Cells/*cytology/physiology ; Humans ; Leukemia, Myeloid, Acute/*metabolism/pathology ; Lysine/*metabolism ; Mice ; Mice, Inbred C57BL ; Mutant Proteins/metabolism ; Oncogene Proteins, Fusion/chemistry/*metabolism ; Preleukemia/metabolism/pathology ; Protein Binding ; Protein Interaction Domains and Motifs ; Protein Processing, Post-Translational ; Transcriptional Activation ; Tumor Cells, Cultured
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    SIRT6 promotes DNA repair under stress by activating PARP1 (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-06-18
    Description: Sirtuin 6 (SIRT6) is a mammalian homolog of the yeast Sir2 deacetylase. Mice deficient for SIRT6 exhibit genome instability. Here, we show that in mammalian cells subjected to oxidative stress SIRT6 is recruited to the sites of DNA double-strand breaks (DSBs) and stimulates DSB repair, through both nonhomologous end joining and homologous recombination. Our results indicate that SIRT6 physically associates with poly[adenosine diphosphate (ADP)-ribose] polymerase 1 (PARP1) and mono-ADP-ribosylates PARP1 on lysine residue 521, thereby stimulating PARP1 poly-ADP-ribosylase activity and enhancing DSB repair under oxidative stress.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mao, Zhiyong -- Hine, Christopher -- Tian, Xiao -- Van Meter, Michael -- Au, Matthew -- Vaidya, Amita -- Seluanov, Andrei -- Gorbunova, Vera -- F31 AG041603/AG/NIA NIH HHS/ -- R01 AG027237/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 2011 Jun 17;332(6036):1443-6. doi: 10.1126/science.1202723.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Rochester, Rochester, NY 14627, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21680843" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; DNA/metabolism ; *DNA Breaks, Double-Stranded ; *DNA Repair ; Humans ; Mice ; Mice, Knockout ; *Oxidative Stress ; Paraquat/pharmacology ; Point Mutation ; Poly Adenosine Diphosphate Ribose/metabolism ; Poly(ADP-ribose) Polymerases/genetics/*metabolism ; Recombination, Genetic ; Signal Transduction ; Sirtuins/genetics/*metabolism ; Transfection
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  • 17
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    Discovery of a viral NLR homolog that inhibits the inflammasome (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-01-22
    Description: The NLR (nucleotide binding and oligomerization, leucine-rich repeat) family of proteins senses microbial infections and activates the inflammasome, a multiprotein complex that promotes microbial clearance. Kaposi's sarcoma-associated herpesvirus (KSHV) is linked to several human malignancies. We found that KSHV Orf63 is a viral homolog of human NLRP1. Orf63 blocked NLRP1-dependent innate immune responses, including caspase-1 activation and processing of interleukins IL-1beta and IL-18. KSHV Orf63 interacted with NLRP1, NLRP3, and NOD2. Inhibition of Orf63 expression resulted in increased expression of IL-1beta during the KSHV life cycle. Furthermore, inhibition of NLRP1 was necessary for efficient reactivation and generation of progeny virus. The viral homolog subverts the function of cellular NLRs, which suggests that modulation of NLR-mediated innate immunity is important for the lifelong persistence of herpesviruses.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3072027/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3072027/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gregory, Sean M -- Davis, Beckley K -- West, John A -- Taxman, Debra J -- Matsuzawa, Shu-ichi -- Reed, John C -- Ting, Jenny P Y -- Damania, Blossom -- 5R21CA131645/CA/NCI NIH HHS/ -- AI057157/AI/NIAID NIH HHS/ -- AI077437/AI/NIAID NIH HHS/ -- AI56324/AI/NIAID NIH HHS/ -- AI91967/AI/NIAID NIH HHS/ -- CA096500/CA/NCI NIH HHS/ -- CA156330/CA/NCI NIH HHS/ -- DE018281/DE/NIDCR NIH HHS/ -- F32-AI78735/AI/NIAID NIH HHS/ -- R01 AI091967/AI/NIAID NIH HHS/ -- R01 CA096500/CA/NCI NIH HHS/ -- R01 CA096500-10/CA/NCI NIH HHS/ -- R01 DE018281/DE/NIDCR NIH HHS/ -- R01 DE018281-05/DE/NIDCR NIH HHS/ -- T32-AI007001/AI/NIAID NIH HHS/ -- T32-AI007419/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2011 Jan 21;331(6015):330-4. doi: 10.1126/science.1199478.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC 27599, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21252346" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/*antagonists & ; inhibitors/chemistry/genetics/metabolism ; Amino Acid Sequence ; Apoptosis ; Apoptosis Regulatory Proteins/*antagonists & ; inhibitors/chemistry/genetics/metabolism ; Carrier Proteins/metabolism ; Caspase 1/metabolism ; Caspase Inhibitors ; Cell Line ; Cell Line, Tumor ; Herpesvirus 8, Human/genetics/immunology/*physiology ; Humans ; *Immune Evasion ; *Immunity, Innate ; Inflammasomes/*antagonists & inhibitors/metabolism ; Interleukin-1beta/metabolism ; Molecular Sequence Data ; Monocytes/virology ; Nod2 Signaling Adaptor Protein/metabolism ; Protein Binding ; Protein Interaction Domains and Motifs ; Transfection ; Viral Proteins/chemistry/genetics/*metabolism ; Virus Activation ; Virus Latency ; Virus Replication
    Print ISSN: 0036-8075
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  • 18
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    A family of IFN-gamma-inducible 65-kD GTPases protects against bacterial infection (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-05-10
    Description: Immune interferon gamma (IFN-gamma) is essential for mammalian host defense against intracellular pathogens. IFN-gamma induces nearly 2000 host genes, yet few have any assigned function. Here, we examined a complete mouse 65-kilodalton (kD) guanylate-binding protein (Gbp) gene family as part of a 43-member IFN-gamma-inducible guanosine triphosphatase (GTPase) superfamily in mouse and human genomes. Family-wide loss-of-function analysis found that at least four Gbps--Gbp1, Gbp6, Gbp7, and Gbp10--conferred cell-autonomous immunity to listerial or mycobacterial infection within macrophages and gene-deficient animals. These Gbps solicited host defense proteins, including the phagocyte oxidase, antimicrobial peptides, and autophagy effectors, to kill intracellular bacteria. Thus, specific 65-kD Gbps coordinate a potent oxidative and vesicular trafficking program to protect the host from infection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, Bae-Hoon -- Shenoy, Avinash R -- Kumar, Pradeep -- Das, Rituparna -- Tiwari, Sangeeta -- MacMicking, John D -- R01 AI068041-01A1/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2011 May 6;332(6030):717-21. doi: 10.1126/science.1201711.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Microbial Pathogenesis, Boyer Centre for Molecular Medicine, Yale University School of Medicine, New Haven, CT 06510, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21551061" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autophagy ; Cell Line ; GTP-Binding Proteins/chemistry/genetics/*metabolism ; Humans ; Immunity, Innate ; Interferon-gamma/*immunology ; Listeria monocytogenes/growth & development/immunology/pathogenicity ; Listeriosis/*immunology/metabolism/microbiology ; Lysosomes/metabolism ; Macrophages/*immunology/metabolism/*microbiology ; Mice ; Mycobacterium bovis/growth & development/immunology/pathogenicity ; NADPH Oxidase/metabolism ; Oxidation-Reduction ; Peptides/metabolism ; Phagocytosis ; Phagosomes/metabolism ; RNA Interference ; Tuberculosis/*immunology/metabolism/microbiology
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 19
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    A Burkholderia pseudomallei toxin inhibits helicase activity of translation factor eIF4A (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-11-15
    Description: The structure of BPSL1549, a protein of unknown function from Burkholderia pseudomallei, reveals a similarity to Escherichia coli cytotoxic necrotizing factor 1. We found that BPSL1549 acted as a potent cytotoxin against eukaryotic cells and was lethal when administered to mice. Expression levels of bpsl1549 correlate with conditions expected to promote or suppress pathogenicity. BPSL1549 promotes deamidation of glutamine-339 of the translation initiation factor eIF4A, abolishing its helicase activity and inhibiting translation. We propose to name BPSL1549 Burkholderia lethal factor 1.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3364511/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3364511/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cruz-Migoni, Abimael -- Hautbergue, Guillaume M -- Artymiuk, Peter J -- Baker, Patrick J -- Bokori-Brown, Monika -- Chang, Chung-Te -- Dickman, Mark J -- Essex-Lopresti, Angela -- Harding, Sarah V -- Mahadi, Nor Muhammad -- Marshall, Laura E -- Mobbs, George W -- Mohamed, Rahmah -- Nathan, Sheila -- Ngugi, Sarah A -- Ong, Catherine -- Ooi, Wen Fong -- Partridge, Lynda J -- Phillips, Helen L -- Raih, M Firdaus -- Ruzheinikov, Sergei -- Sarkar-Tyson, Mitali -- Sedelnikova, Svetlana E -- Smither, Sophie J -- Tan, Patrick -- Titball, Richard W -- Wilson, Stuart A -- Rice, David W -- 085162/Wellcome Trust/United Kingdom -- BB/D011795/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- BB/D524975/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- BB/E025293/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- WT085162AIA/Wellcome Trust/United Kingdom -- Biotechnology and Biological Sciences Research Council/United Kingdom -- New York, N.Y. -- Science. 2011 Nov 11;334(6057):821-4. doi: 10.1126/science.1211915.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology and Biotechnology, Krebs Institute, University of Sheffield, Sheffield S10 2TN, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22076380" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Animals ; Bacterial Proteins/*chemistry/genetics/metabolism/*toxicity ; Bacterial Toxins/*chemistry/genetics/metabolism/*toxicity ; Burkholderia pseudomallei/*chemistry/*pathogenicity ; Catalytic Domain ; Cell Line ; Crystallography, X-Ray ; Cytotoxins/chemistry/genetics/metabolism/toxicity ; Escherichia coli Proteins/chemistry ; Eukaryotic Initiation Factor-4A/*antagonists & inhibitors/metabolism ; Glutamine/metabolism ; Humans ; Mice ; Mice, Inbred BALB C ; Models, Molecular ; Mutant Proteins/toxicity ; Peptide Chain Initiation, Translational/drug effects ; Protein Binding ; Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary
    Print ISSN: 0036-8075
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  • 20
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    Multi-input RNAi-based logic circuit for identification of specific cancer cells (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-09-03
    Description: Engineered biological systems that integrate multi-input sensing, sophisticated information processing, and precisely regulated actuation in living cells could be useful in a variety of applications. For example, anticancer therapies could be engineered to detect and respond to complex cellular conditions in individual cells with high specificity. Here, we show a scalable transcriptional/posttranscriptional synthetic regulatory circuit--a cell-type "classifier"--that senses expression levels of a customizable set of endogenous microRNAs and triggers a cellular response only if the expression levels match a predetermined profile of interest. We demonstrate that a HeLa cancer cell classifier selectively identifies HeLa cells and triggers apoptosis without affecting non-HeLa cell types. This approach also provides a general platform for programmed responses to other complex cell states.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xie, Zhen -- Wroblewska, Liliana -- Prochazka, Laura -- Weiss, Ron -- Benenson, Yaakov -- 1R01CA155320-01/CA/NCI NIH HHS/ -- GM068763/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2011 Sep 2;333(6047):1307-11. doi: 10.1126/science.1205527.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Faculty of Arts and Sciences (FAS) Center for Systems Biology, Harvard University, 52 Oxford Street, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21885784" target="_blank"〉PubMed〈/a〉
    Keywords: *Apoptosis ; Biomarkers, Tumor ; Cell Line ; *Gene Expression Regulation, Neoplastic ; *Gene Regulatory Networks ; HeLa Cells ; Humans ; MicroRNAs/*genetics ; *RNA Interference ; Synthetic Biology/methods ; Transfection ; bcl-2-Associated X Protein/genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 21
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    Translational pausing ensures membrane targeting and cytoplasmic splicing of XBP1u mRNA (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-01-15
    Description: Upon endoplasmic reticulum (ER) stress, an endoribonuclease, inositol-requiring enzyme-1alpha, splices the precursor unspliced form of X-box-binding protein 1 messenger RNA (XBP1u mRNA) on the ER membrane to yield an active transcription factor (XBP1s), leading to the alleviation of the stress. The nascent peptide encoded by XBP1u mRNA drags the mRNA-ribosome-nascent chain (R-RNC) complex to the membrane for efficient cytoplasmic splicing. We found that translation of the XBP1u mRNA was briefly paused to stabilize the R-RNC complex. Mutational analysis of XBP1u revealed an evolutionarily conserved peptide module at the carboxyl terminus that was responsible for the translational pausing and was required for the efficient targeting and splicing of the XBP1u mRNA. Thus, translational pausing may be used for unexpectedly diverse cellular processes in mammalian cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yanagitani, Kota -- Kimata, Yukio -- Kadokura, Hiroshi -- Kohno, Kenji -- New York, N.Y. -- Science. 2011 Feb 4;331(6017):586-9. doi: 10.1126/science.1197142. Epub 2011 Jan 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular and Cell Genetics, Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5, Takayama, Ikoma, Nara 630-0192, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21233347" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; Cytoplasm/*metabolism ; DNA-Binding Proteins/chemistry/*genetics/*metabolism ; Endoplasmic Reticulum/*metabolism ; Endoribonucleases/metabolism ; Humans ; Hydrophobic and Hydrophilic Interactions ; Intracellular Membranes/metabolism ; *Protein Biosynthesis ; Protein-Serine-Threonine Kinases/metabolism ; *RNA Splicing ; RNA, Messenger/*genetics/metabolism ; Recombinant Fusion Proteins/chemistry/metabolism ; Ribosomes/metabolism ; Transcription Factors/chemistry/*genetics/*metabolism
    Print ISSN: 0036-8075
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  • 22
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    The C-terminal domain of RNA polymerase II is modified by site-specific methylation (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-04-02
    Description: The carboxy-terminal domain (CTD) of RNA polymerase II (RNAPII) in mammals undergoes extensive posttranslational modification, which is essential for transcriptional initiation and elongation. Here, we show that the CTD of RNAPII is methylated at a single arginine (R1810) by the coactivator-associated arginine methyltransferase 1 (CARM1). Although methylation at R1810 is present on the hyperphosphorylated form of RNAPII in vivo, Ser2 or Ser5 phosphorylation inhibits CARM1 activity toward this site in vitro, suggesting that methylation occurs before transcription initiation. Mutation of R1810 results in the misexpression of a variety of small nuclear RNAs and small nucleolar RNAs, an effect that is also observed in Carm1(-/-) mouse embryo fibroblasts. These results demonstrate that CTD methylation facilitates the expression of select RNAs, perhaps serving to discriminate the RNAPII-associated machinery recruited to distinct gene types.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3773223/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3773223/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sims, Robert J 3rd -- Rojas, Luis Alejandro -- Beck, David -- Bonasio, Roberto -- Schuller, Roland -- Drury, William J 3rd -- Eick, Dirk -- Reinberg, Danny -- F32 GM071166/GM/NIGMS NIH HHS/ -- GM-37120/GM/NIGMS NIH HHS/ -- GM-71166/GM/NIGMS NIH HHS/ -- R01 GM037120/GM/NIGMS NIH HHS/ -- R37 GM037120/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Apr 1;332(6025):99-103. doi: 10.1126/science.1202663.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute (HHMI), Department of Biochemistry, New York University School of Medicine, 522 First Avenue, Smilow 211, New York, NY 10016, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21454787" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arginine/metabolism ; Cell Line ; HeLa Cells ; Humans ; Methylation ; Mice ; Mutation ; Protein Interaction Domains and Motifs ; Protein Structure, Tertiary ; Protein-Arginine N-Methyltransferases/metabolism ; RNA Polymerase II/genetics/*metabolism ; RNA, Small Nuclear/metabolism ; RNA, Small Nucleolar/metabolism ; Recombinant Proteins
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  • 23
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    A synthetic optogenetic transcription device enhances blood-glucose homeostasis in mice (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-06-28
    Description: Synthetic biology has advanced the design of genetic devices that can be used to reprogram metabolic activities in mammalian cells. By functionally linking the signal transduction of melanopsin to the control circuit of the nuclear factor of activated T cells, we have designed a synthetic signaling cascade enabling light-inducible transgene expression in different cell lines grown in culture or bioreactors or implanted into mice. In animals harboring intraperitoneal hollow-fiber or subcutaneous implants containing light-inducible transgenic cells, the serum levels of the human glycoprotein secreted alkaline phosphatase could be remote-controlled with fiber optics or transdermally regulated through direct illumination. Light-controlled expression of the glucagon-like peptide 1 was able to attenuate glycemic excursions in type II diabetic mice. Synthetic light-pulse-transcription converters may have applications in therapeutics and protein expression technology.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ye, Haifeng -- Daoud-El Baba, Marie -- Peng, Ren-Wang -- Fussenegger, Martin -- New York, N.Y. -- Science. 2011 Jun 24;332(6037):1565-8. doi: 10.1126/science.1203535.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biosystems Science and Engineering, Eidgenossische Technische Hochschule (ETH) Zurich, Basel, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21700876" target="_blank"〉PubMed〈/a〉
    Keywords: Alkaline Phosphatase/genetics/metabolism ; Animals ; Bioreactors ; Blood Glucose/*metabolism ; Cell Line ; Cell Line, Tumor ; Diabetes Mellitus, Type 2/genetics/*metabolism ; GPI-Linked Proteins/genetics/metabolism ; *Gene Expression Regulation ; Genes, Reporter ; Genetic Engineering/*methods ; Glucagon-Like Peptide 1/genetics/metabolism ; Homeostasis ; Humans ; Insulin/blood ; Isoenzymes/genetics/metabolism ; *Light ; Light Signal Transduction ; Mice ; NFATC Transcription Factors/genetics/metabolism ; Optical Fibers ; Rod Opsins/genetics/metabolism ; Signal Transduction ; Synthetic Biology/*methods ; *Transcription, Genetic ; Transfection ; Transgenes
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  • 24
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    Development. A new focus on RNA in the lens (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-03-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Duncan, Melinda K -- EY12221/EY/NEI NIH HHS/ -- EY15279/EY/NEI NIH HHS/ -- R01 EY012221/EY/NEI NIH HHS/ -- R01 EY015279/EY/NEI NIH HHS/ -- RR016472-10/RR/NCRR NIH HHS/ -- RR027273-01/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2011 Mar 25;331(6024):1523-4. doi: 10.1126/science.1204205.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, University of Delaware, Newark, DE 19716, USA. duncanm@udel.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21436425" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cataract/congenital/*genetics ; Cell Line ; Crystallins/genetics/metabolism ; Cytoplasmic Granules/metabolism ; Gene Expression ; *Gene Expression Regulation, Developmental ; Humans ; Lens, Crystalline/cytology/embryology/*metabolism ; Mice ; Mutation ; Protein Biosynthesis ; RNA, Messenger/*genetics/*metabolism ; Ribonucleoproteins/genetics/*metabolism
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 25
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    Phosphoproteomic analysis identifies Grb10 as an mTORC1 substrate that negatively regulates insulin signaling (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-06-11
    Description: The evolutionarily conserved serine-threonine kinase mammalian target of rapamycin (mTOR) plays a critical role in regulating many pathophysiological processes. Functional characterization of the mTOR signaling pathways, however, has been hampered by the paucity of known substrates. We used large-scale quantitative phosphoproteomics experiments to define the signaling networks downstream of mTORC1 and mTORC2. Characterization of one mTORC1 substrate, the growth factor receptor-bound protein 10 (Grb10), showed that mTORC1-mediated phosphorylation stabilized Grb10, leading to feedback inhibition of the phosphatidylinositol 3-kinase (PI3K) and extracellular signal-regulated, mitogen-activated protein kinase (ERK-MAPK) pathways. Grb10 expression is frequently down-regulated in various cancers, and loss of Grb10 and loss of the well-established tumor suppressor phosphatase PTEN appear to be mutually exclusive events, suggesting that Grb10 might be a tumor suppressor regulated by mTORC1.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3195509/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3195509/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yu, Yonghao -- Yoon, Sang-Oh -- Poulogiannis, George -- Yang, Qian -- Ma, Xiaoju Max -- Villen, Judit -- Kubica, Neil -- Hoffman, Gregory R -- Cantley, Lewis C -- Gygi, Steven P -- Blenis, John -- CA46595/CA/NCI NIH HHS/ -- GM051405/GM/NIGMS NIH HHS/ -- HG3456/HG/NHGRI NIH HHS/ -- R00 CA140789/CA/NCI NIH HHS/ -- R00 CA140789-04/CA/NCI NIH HHS/ -- R00CA140789/CA/NCI NIH HHS/ -- R01 GM041890/GM/NIGMS NIH HHS/ -- R01 GM051405/GM/NIGMS NIH HHS/ -- R01 GM051405-14/GM/NIGMS NIH HHS/ -- R01 GM056203/GM/NIGMS NIH HHS/ -- R01 HG003456/HG/NHGRI NIH HHS/ -- R01 HG003456-07/HG/NHGRI NIH HHS/ -- R37 CA046595/CA/NCI NIH HHS/ -- R37 CA046595-22/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2011 Jun 10;332(6035):1322-6. doi: 10.1126/science.1199484.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21659605" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibiotics, Antineoplastic/pharmacology ; Cell Line ; GRB10 Adaptor Protein/*metabolism ; Humans ; Insulin/*metabolism ; Mice ; Molecular Sequence Data ; Multiprotein Complexes ; Phosphatidylinositol 3-Kinases/metabolism ; Phosphoproteins/metabolism ; Phosphorylation/drug effects ; Proteins/*metabolism ; Proteome/metabolism ; *Signal Transduction/drug effects ; Sirolimus/pharmacology ; TOR Serine-Threonine Kinases
    Print ISSN: 0036-8075
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  • 26
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    Mutations in U4atac snRNA, a component of the minor spliceosome, in the developmental disorder MOPD I (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-04-09
    Description: Small nuclear RNAs (snRNAs) are essential factors in messenger RNA splicing. By means of homozygosity mapping and deep sequencing, we show that a gene encoding U4atac snRNA, a component of the minor U12-dependent spliceosome, is mutated in individuals with microcephalic osteodysplastic primordial dwarfism type I (MOPD I), a severe developmental disorder characterized by extreme intrauterine growth retardation and multiple organ abnormalities. Functional assays showed that mutations (30G〉A, 51G〉A, 55G〉A, and 111G〉A) associated with MOPD I cause defective U12-dependent splicing. Endogenous U12-dependent but not U2-dependent introns were found to be poorly spliced in MOPD I patient fibroblast cells. The introduction of wild-type U4atac snRNA into MOPD I cells enhanced U12-dependent splicing. These results illustrate the critical role of minor intron splicing in human development.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3380448/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3380448/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉He, Huiling -- Liyanarachchi, Sandya -- Akagi, Keiko -- Nagy, Rebecca -- Li, Jingfeng -- Dietrich, Rosemary C -- Li, Wei -- Sebastian, Nikhil -- Wen, Bernard -- Xin, Baozhong -- Singh, Jarnail -- Yan, Pearlly -- Alder, Hansjuerg -- Haan, Eric -- Wieczorek, Dagmar -- Albrecht, Beate -- Puffenberger, Erik -- Wang, Heng -- Westman, Judith A -- Padgett, Richard A -- Symer, David E -- de la Chapelle, Albert -- GM079527/GM/NIGMS NIH HHS/ -- GM093074/GM/NIGMS NIH HHS/ -- P30 CA16058/CA/NCI NIH HHS/ -- R01 GM079527/GM/NIGMS NIH HHS/ -- R01 GM079527-04/GM/NIGMS NIH HHS/ -- R01 GM093074/GM/NIGMS NIH HHS/ -- R01 GM093074-01A1/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2011 Apr 8;332(6026):238-40. doi: 10.1126/science.1200587.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Human Cancer Genetics Program, Ohio State University, Columbus, OH 43210, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21474760" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; Chromosomes, Human, Pair 2/genetics ; Dwarfism/genetics/metabolism ; Female ; Fetal Growth Retardation/genetics/metabolism ; Humans ; Introns ; Inverted Repeat Sequences ; Male ; Microcephaly/genetics/metabolism ; *Mutation ; Nucleic Acid Conformation ; Osteochondrodysplasias/genetics/metabolism ; Pedigree ; *RNA Splicing ; RNA, Small Nuclear/chemistry/*genetics/metabolism ; Spliceosomes/*genetics/metabolism
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  • 27
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    A bacterial protein targets the BAHD1 chromatin complex to stimulate type III interferon response (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-01-22
    Description: Intracellular pathogens such as Listeria monocytogenes subvert cellular functions through the interaction of bacterial effectors with host components. Here we found that a secreted listerial virulence factor, LntA, could target the chromatin repressor BAHD1 in the host cell nucleus to activate interferon (IFN)-stimulated genes (ISGs). IFN-lambda expression was induced in response to infection of epithelial cells with bacteria lacking LntA; however, the BAHD1-chromatin associated complex repressed downstream ISGs. In contrast, in cells infected with lntA-expressing bacteria, LntA prevented BAHD1 recruitment to ISGs and stimulated their expression. Murine listeriosis decreased in BAHD1(+/-) mice or when lntA was constitutively expressed. Thus, the LntA-BAHD1 interplay may modulate IFN-lambda-mediated immune response to control bacterial colonization of the host.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lebreton, Alice -- Lakisic, Goran -- Job, Viviana -- Fritsch, Lauriane -- Tham, To Nam -- Camejo, Ana -- Mattei, Pierre-Jean -- Regnault, Beatrice -- Nahori, Marie-Anne -- Cabanes, Didier -- Gautreau, Alexis -- Ait-Si-Ali, Slimane -- Dessen, Andrea -- Cossart, Pascale -- Bierne, Helene -- 233348/European Research Council/International -- New York, N.Y. -- Science. 2011 Mar 11;331(6022):1319-21. doi: 10.1126/science.1200120. Epub 2011 Jan 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut Pasteur, Unite des Interactions Bacteries Cellules, Paris, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21252314" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cell Line ; Cell Line, Tumor ; Cell Nucleus/metabolism ; Chromatin/*metabolism ; Chromosomal Proteins, Non-Histone/*metabolism ; Down-Regulation ; Gene Expression Profiling ; Gene Expression Regulation ; Host-Pathogen Interactions ; Humans ; Interferons/genetics/immunology/*metabolism ; Interleukins/genetics/immunology/*metabolism ; Listeria monocytogenes/genetics/metabolism/*pathogenicity ; Listeriosis/*immunology/microbiology ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Molecular Sequence Data ; Signal Transduction ; Virulence Factors/chemistry/genetics/*metabolism
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    Phosphorylation of ULK1 (hATG1) by AMP-activated protein kinase connects energy sensing to mitophagy (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-01-06
    Description: Adenosine monophosphate-activated protein kinase (AMPK) is a conserved sensor of intracellular energy activated in response to low nutrient availability and environmental stress. In a screen for conserved substrates of AMPK, we identified ULK1 and ULK2, mammalian orthologs of the yeast protein kinase Atg1, which is required for autophagy. Genetic analysis of AMPK or ULK1 in mammalian liver and Caenorhabditis elegans revealed a requirement for these kinases in autophagy. In mammals, loss of AMPK or ULK1 resulted in aberrant accumulation of the autophagy adaptor p62 and defective mitophagy. Reconstitution of ULK1-deficient cells with a mutant ULK1 that cannot be phosphorylated by AMPK revealed that such phosphorylation is required for mitochondrial homeostasis and cell survival during starvation. These findings uncover a conserved biochemical mechanism coupling nutrient status with autophagy and cell survival.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3030664/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3030664/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Egan, Daniel F -- Shackelford, David B -- Mihaylova, Maria M -- Gelino, Sara -- Kohnz, Rebecca A -- Mair, William -- Vasquez, Debbie S -- Joshi, Aashish -- Gwinn, Dana M -- Taylor, Rebecca -- Asara, John M -- Fitzpatrick, James -- Dillin, Andrew -- Viollet, Benoit -- Kundu, Mondira -- Hansen, Malene -- Shaw, Reuben J -- 1P01CA120964/CA/NCI NIH HHS/ -- 1P01CA120964-01A/CA/NCI NIH HHS/ -- 5P30CA006516-43/CA/NCI NIH HHS/ -- P01 CA120964/CA/NCI NIH HHS/ -- P01 CA120964-05/CA/NCI NIH HHS/ -- P30 CA006516/CA/NCI NIH HHS/ -- P30 CA006516-43/CA/NCI NIH HHS/ -- P30CA014195/CA/NCI NIH HHS/ -- R01 DK080425/DK/NIDDK NIH HHS/ -- R01 DK080425-04/DK/NIDDK NIH HHS/ -- R01 DK080425-05/DK/NIDDK NIH HHS/ -- T32 CA009370/CA/NCI NIH HHS/ -- T32 CA009370-29/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Jan 28;331(6016):456-61. doi: 10.1126/science.1196371. Epub 2010 Dec 23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular and Cell Biology Laboratory, Dulbecco Center for Cancer Research, Salk Institute for Biological Studies, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21205641" target="_blank"〉PubMed〈/a〉
    Keywords: AMP-Activated Protein Kinases/*metabolism ; Adaptor Proteins, Signal Transducing/metabolism ; Animals ; *Autophagy ; Caenorhabditis elegans/metabolism ; Caenorhabditis elegans Proteins/genetics/metabolism ; Cell Line ; Cell Line, Tumor ; Cell Survival ; Energy Metabolism ; Hepatocytes/metabolism ; Humans ; Insulin/metabolism ; Intracellular Signaling Peptides and Proteins/chemistry/genetics/*metabolism ; Liver/metabolism ; Metformin/pharmacology ; Mice ; Mitochondria, Liver/metabolism/ultrastructure ; Phenformin/pharmacology ; Phosphorylation ; Protein-Serine-Threonine Kinases/chemistry/genetics/*metabolism ; Signal Transduction ; Transcription Factors/metabolism
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    RNAP II CTD phosphorylated on threonine-4 is required for histone mRNA 3' end processing (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-11-05
    Description: The RNA polymerase II (RNAP II) largest subunit contains a C-terminal domain (CTD) with up to 52 Tyr(1)-Ser(2)-Pro(3)-Thr(4)-Ser(5)-Pro(6)-Ser(7) consensus repeats. Serines 2, 5, and 7 are known to be phosphorylated, and these modifications help to orchestrate the interplay between transcription and processing of messenger RNA (mRNA) precursors. Here, we provide evidence that phosphorylation of CTD Thr(4) residues is required specifically for histone mRNA 3' end processing, functioning to facilitate recruitment of 3' processing factors to histone genes. Like Ser(2), Thr(4) phosphorylation requires the CTD kinase CDK9 and is evolutionarily conserved from yeast to human. Our data thus illustrate how a CTD modification can play a highly specific role in facilitating efficient gene expression.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3678764/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3678764/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hsin, Jing-Ping -- Sheth, Amit -- Manley, James L -- R01 GM028983/GM/NIGMS NIH HHS/ -- R01 GM28983/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2011 Nov 4;334(6056):683-6. doi: 10.1126/science.1206034.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, Columbia University, New York, NY 10027, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22053051" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cell Line ; Cell Survival ; Chickens ; Cleavage And Polyadenylation Specificity Factor/metabolism ; Cyclin-Dependent Kinase 9/metabolism ; Histones/*genetics ; Humans ; Molecular Sequence Data ; Nuclear Proteins/metabolism ; Phosphorylation ; *RNA 3' End Processing ; RNA Polymerase II/chemistry/*metabolism ; RNA, Messenger/*metabolism ; Threonine/*metabolism ; mRNA Cleavage and Polyadenylation Factors/metabolism
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    mTORC1 senses lysosomal amino acids through an inside-out mechanism that requires the vacuolar H(+)-ATPase (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-11-05
    Description: The mTOR complex 1 (mTORC1) protein kinase is a master growth regulator that is stimulated by amino acids. Amino acids activate the Rag guanosine triphosphatases (GTPases), which promote the translocation of mTORC1 to the lysosomal surface, the site of mTORC1 activation. We found that the vacuolar H(+)-adenosine triphosphatase ATPase (v-ATPase) is necessary for amino acids to activate mTORC1. The v-ATPase engages in extensive amino acid-sensitive interactions with the Ragulator, a scaffolding complex that anchors the Rag GTPases to the lysosome. In a cell-free system, ATP hydrolysis by the v-ATPase was necessary for amino acids to regulate the v-ATPase-Ragulator interaction and promote mTORC1 translocation. Results obtained in vitro and in human cells suggest that amino acid signaling begins within the lysosomal lumen. These results identify the v-ATPase as a component of the mTOR pathway and delineate a lysosome-associated machinery for amino acid sensing.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3211112/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3211112/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zoncu, Roberto -- Bar-Peled, Liron -- Efeyan, Alejo -- Wang, Shuyu -- Sancak, Yasemin -- Sabatini, David M -- AI47389/AI/NIAID NIH HHS/ -- CA103866/CA/NCI NIH HHS/ -- R01 CA103866/CA/NCI NIH HHS/ -- R01 CA103866-07/CA/NCI NIH HHS/ -- R01 CA103866-08/CA/NCI NIH HHS/ -- R37 AI047389/AI/NIAID NIH HHS/ -- R37 AI047389-11/AI/NIAID NIH HHS/ -- R37 AI047389-12/AI/NIAID NIH HHS/ -- R37 AI047389-13/AI/NIAID NIH HHS/ -- T32 GM007753/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Nov 4;334(6056):678-83. doi: 10.1126/science.1207056.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, Nine Cambridge Center, Cambridge, MA 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22053050" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acids/*metabolism ; Animals ; Cell Line ; Drosophila ; GTP Phosphohydrolases/metabolism ; Humans ; Lysosomes/*metabolism ; Multiprotein Complexes ; Proteins/*metabolism ; RNA Interference ; Signal Transduction ; TOR Serine-Threonine Kinases ; Vacuolar Proton-Translocating ATPases/*metabolism
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    The mTOR-regulated phosphoproteome reveals a mechanism of mTORC1-mediated inhibition of growth factor signaling (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-06-11
    Description: The mammalian target of rapamycin (mTOR) protein kinase is a master growth promoter that nucleates two complexes, mTORC1 and mTORC2. Despite the diverse processes controlled by mTOR, few substrates are known. We defined the mTOR-regulated phosphoproteome by quantitative mass spectrometry and characterized the primary sequence motif specificity of mTOR using positional scanning peptide libraries. We found that the phosphorylation response to insulin is largely mTOR dependent and that mTOR exhibits a unique preference for proline, hydrophobic, and aromatic residues at the +1 position. The adaptor protein Grb10 was identified as an mTORC1 substrate that mediates the inhibition of phosphoinositide 3-kinase typical of cells lacking tuberous sclerosis complex 2 (TSC2), a tumor suppressor and negative regulator of mTORC1. Our work clarifies how mTORC1 inhibits growth factor signaling and opens new areas of investigation in mTOR biology.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3177140/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3177140/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hsu, Peggy P -- Kang, Seong A -- Rameseder, Jonathan -- Zhang, Yi -- Ottina, Kathleen A -- Lim, Daniel -- Peterson, Timothy R -- Choi, Yongmun -- Gray, Nathanael S -- Yaffe, Michael B -- Marto, Jarrod A -- Sabatini, David M -- AI47389/AI/NIAID NIH HHS/ -- CA103866/CA/NCI NIH HHS/ -- CA112967/CA/NCI NIH HHS/ -- ES015339/ES/NIEHS NIH HHS/ -- GM68762/GM/NIGMS NIH HHS/ -- R01 CA103866/CA/NCI NIH HHS/ -- R01 CA103866-09/CA/NCI NIH HHS/ -- R01 CA129105/CA/NCI NIH HHS/ -- R01 CA129105-05/CA/NCI NIH HHS/ -- R37 AI047389/AI/NIAID NIH HHS/ -- T32 GM007753/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Jun 10;332(6035):1317-22. doi: 10.1126/science.1199498.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, Nine Cambridge Center, Cambridge, MA 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21659604" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; GRB10 Adaptor Protein/*metabolism ; Humans ; Insulin/metabolism ; Intercellular Signaling Peptides and Proteins/*metabolism ; Mass Spectrometry ; Mice ; Multiprotein Complexes ; Naphthyridines/pharmacology ; Phosphoproteins/metabolism ; Phosphorylation ; Proteins/*metabolism ; Proteome/metabolism ; *Signal Transduction ; Sirolimus/pharmacology ; TOR Serine-Threonine Kinases/*metabolism
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    Chromosome segregation errors as a cause of DNA damage and structural chromosome aberrations (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-10-01
    Description: Various types of chromosomal aberrations, including numerical (aneuploidy) and structural (e.g., translocations, deletions), are commonly found in human tumors and are linked to tumorigenesis. Aneuploidy is a direct consequence of chromosome segregation errors in mitosis, whereas structural aberrations are caused by improperly repaired DNA breaks. Here, we demonstrate that chromosome segregation errors can also result in structural chromosome aberrations. Chromosomes that missegregate are frequently damaged during cytokinesis, triggering a DNA double-strand break response in the respective daughter cells involving ATM, Chk2, and p53. We show that these double-strand breaks can lead to unbalanced translocations in the daughter cells. Our data show that segregation errors can cause translocations and provide insights into the role of whole-chromosome instability in tumorigenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Janssen, Aniek -- van der Burg, Marja -- Szuhai, Karoly -- Kops, Geert J P L -- Medema, Rene H -- 242617/European Research Council/International -- New York, N.Y. -- Science. 2011 Sep 30;333(6051):1895-8. doi: 10.1126/science.1210214.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Oncology and Cancer Genomics Center, University Medical Center Utrecht, Universiteitsweg 100, 3584 CG, Utrecht, Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21960636" target="_blank"〉PubMed〈/a〉
    Keywords: Ataxia Telangiectasia Mutated Proteins ; Cell Cycle Proteins/antagonists & inhibitors/metabolism ; Cell Line ; Cell Line, Tumor ; Checkpoint Kinase 2 ; *Chromosomal Instability ; *Chromosome Aberrations ; *Chromosome Segregation ; Cytokinesis ; *DNA Breaks, Double-Stranded ; DNA-Binding Proteins/metabolism ; Histones/metabolism ; Humans ; Intracellular Signaling Peptides and Proteins/metabolism ; Neoplasms/*genetics ; Phosphorylation ; Protein Kinase Inhibitors/pharmacology ; Protein-Serine-Threonine Kinases/antagonists & inhibitors/metabolism ; Protein-Tyrosine Kinases ; Pyrimidines/pharmacology ; Thiones/pharmacology ; *Translocation, Genetic ; Tumor Suppressor Protein p53/metabolism ; Tumor Suppressor Proteins/metabolism
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    Inhibition of pyruvate kinase M2 by reactive oxygen species contributes to cellular antioxidant responses (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-11-05
    Description: Control of intracellular reactive oxygen species (ROS) concentrations is critical for cancer cell survival. We show that, in human lung cancer cells, acute increases in intracellular concentrations of ROS caused inhibition of the glycolytic enzyme pyruvate kinase M2 (PKM2) through oxidation of Cys(358). This inhibition of PKM2 is required to divert glucose flux into the pentose phosphate pathway and thereby generate sufficient reducing potential for detoxification of ROS. Lung cancer cells in which endogenous PKM2 was replaced with the Cys(358) to Ser(358) oxidation-resistant mutant exhibited increased sensitivity to oxidative stress and impaired tumor formation in a xenograft model. Besides promoting metabolic changes required for proliferation, the regulatory properties of PKM2 may confer an additional advantage to cancer cells by allowing them to withstand oxidative stress.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3471535/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3471535/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Anastasiou, Dimitrios -- Poulogiannis, George -- Asara, John M -- Boxer, Matthew B -- Jiang, Jian-kang -- Shen, Min -- Bellinger, Gary -- Sasaki, Atsuo T -- Locasale, Jason W -- Auld, Douglas S -- Thomas, Craig J -- Vander Heiden, Matthew G -- Cantley, Lewis C -- 1P30CA147882/CA/NCI NIH HHS/ -- P01 CA089021/CA/NCI NIH HHS/ -- P01 CA117969/CA/NCI NIH HHS/ -- P01-CA089021/CA/NCI NIH HHS/ -- P01-CA117969-04/CA/NCI NIH HHS/ -- R01 GM056203/GM/NIGMS NIH HHS/ -- R01-GM056203-13/GM/NIGMS NIH HHS/ -- R03MH085679/MH/NIMH NIH HHS/ -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2011 Dec 2;334(6060):1278-83. doi: 10.1126/science.1211485. Epub 2011 Nov 3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Beth Israel Deaconess Medical Center, Department of Medicine-Division of Signal Transduction, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22052977" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylcysteine/pharmacology ; Amino Acid Substitution ; Animals ; Antioxidants/*metabolism ; Cell Line ; Cell Line, Tumor ; Cell Survival ; Cysteine/chemistry ; Diamide/pharmacology ; Enzyme Activators/pharmacology ; Glucose/metabolism ; Glutathione/metabolism ; Humans ; Mice ; Mice, Nude ; Mutant Proteins/antagonists & inhibitors/chemistry/genetics/metabolism ; Neoplasm Transplantation ; Neoplasms, Experimental/metabolism/pathology ; Oxidation-Reduction ; Oxidative Stress ; Pentose Phosphate Pathway ; Protein Subunits ; Pyruvate Kinase/*antagonists & inhibitors/chemistry/genetics/metabolism ; Reactive Oxygen Species/*metabolism ; Transplantation, Heterologous
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    Stem cells. Human cells cloned--almost (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-10-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vogel, Gretchen -- New York, N.Y. -- Science. 2011 Oct 7;334(6052):26-7. doi: 10.1126/science.334.6052.26.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21980084" target="_blank"〉PubMed〈/a〉
    Keywords: Blastocyst ; Cell Line ; *Cellular Reprogramming ; Cloning, Organism ; Embryonic Stem Cells ; Female ; Gene Expression ; Humans ; Induced Pluripotent Stem Cells ; Male ; Nuclear Transfer Techniques ; Oocytes ; *Pluripotent Stem Cells/cytology/physiology
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    Human cytomegalovirus directly induces the antiviral protein viperin to enhance infectivity (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-04-30
    Description: Viperin is an interferon-inducible protein that is directly induced in cells by human cytomegalovirus (HCMV) infection. Why HCMV would induce viperin, which has antiviral activity, is unknown. We show that HCMV-induced viperin disrupts cellular metabolism to enhance the infectious process. Viperin interaction with the viral protein vMIA resulted in viperin relocalization from the endoplasmic reticulum to the mitochondria. There, viperin interacted with the mitochondrial trifunctional protein that mediates beta-oxidation of fatty acids to generate adenosine triphosphate (ATP). This interaction with viperin, but not with a mutant lacking the viperin iron-sulfur cluster-binding motif, reduced cellular ATP generation, which resulted in actin cytoskeleton disruption and enhancement of infection. This function of viperin, which was previously attributed to vMIA, suggests that HCMV has coopted viperin to facilitate the infectious process.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Seo, Jun-Young -- Yaneva, Rakina -- Hinson, Ella R -- Cresswell, Peter -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 May 27;332(6033):1093-7. doi: 10.1126/science.1202007. Epub 2011 Apr 28.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunobiology, Howard Hughes Medical Institute, Yale University School of Medicine, 300 Cedar Street, New Haven, CT 06520-8011, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21527675" target="_blank"〉PubMed〈/a〉
    Keywords: Actin Cytoskeleton/metabolism/ultrastructure ; Adenosine Triphosphate/metabolism ; Animals ; COS Cells ; Cell Line ; Cells, Cultured ; Cercopithecus aethiops ; Cytomegalovirus/*metabolism/*pathogenicity ; Endoplasmic Reticulum/metabolism ; Fatty Acids/metabolism ; Glycolysis ; Humans ; Hydrogen-Ion Concentration ; Immediate-Early Proteins/*metabolism ; Mice ; Mice, Knockout ; Mitochondria/metabolism ; Mitochondrial Trifunctional Protein ; Multienzyme Complexes/metabolism ; Oxidation-Reduction ; Proteins/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Stress Fibers/ultrastructure ; Transfection ; Virus Replication
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    Failure to confirm XMRV/MLVs in the blood of patients with chronic fatigue syndrome: a multi-laboratory study (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-09-24
    Description: Murine leukemia viruses (MLVs), including xenotropic-MLV-related virus (XMRV), have been controversially linked to chronic fatigue syndrome (CFS). To explore this issue in greater depth, we compiled coded replicate samples of blood from 15 subjects previously reported to be XMRV/MLV-positive (14 with CFS) and from 15 healthy donors previously determined to be negative for the viruses. These samples were distributed in a blinded fashion to nine laboratories, which performed assays designed to detect XMRV/MLV nucleic acid, virus replication, and antibody. Only two laboratories reported evidence of XMRV/MLVs; however, replicate sample results showed disagreement, and reactivity was similar among CFS subjects and negative controls. These results indicate that current assays do not reproducibly detect XMRV/MLV in blood samples and that blood donor screening is not warranted.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3299483/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3299483/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Simmons, Graham -- Glynn, Simone A -- Komaroff, Anthony L -- Mikovits, Judy A -- Tobler, Leslie H -- Hackett, John Jr -- Tang, Ning -- Switzer, William M -- Heneine, Walid -- Hewlett, Indira K -- Zhao, Jiangqin -- Lo, Shyh-Ching -- Alter, Harvey J -- Linnen, Jeffrey M -- Gao, Kui -- Coffin, John M -- Kearney, Mary F -- Ruscetti, Francis W -- Pfost, Max A -- Bethel, James -- Kleinman, Steven -- Holmberg, Jerry A -- Busch, Michael P -- Blood XMRV Scientific Research Working Group (SRWG) -- N01 HB-57181/HB/NHLBI NIH HHS/ -- N01HB57181/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2011 Nov 11;334(6057):814-7. doi: 10.1126/science.1213841. Epub 2011 Sep 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Blood Systems Research Institute and University of California, San Francisco, San Francisco, CA 94118, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21940862" target="_blank"〉PubMed〈/a〉
    Keywords: Antibodies, Viral/blood ; Blood/*virology ; Blood Specimen Collection ; Cell Line ; Coculture Techniques ; False Positive Reactions ; Fatigue Syndrome, Chronic/*virology ; Female ; Humans ; Laboratories ; Male ; Polymerase Chain Reaction ; Reproducibility of Results ; Retroviridae Infections/virology ; Reverse Transcriptase Polymerase Chain Reaction ; Sensitivity and Specificity ; Viremia ; Virus Replication ; Xenotropic murine leukemia virus-related virus/genetics/immunology/*isolation & ; purification/physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Drosophila CENH3 is sufficient for centromere formation (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-11-05
    Description: CENH3 is a centromere-specific histone H3 variant essential for kinetochore assembly. Despite its central role in centromere function, there has been no conclusive evidence supporting CENH3 as sufficient to determine centromere identity. To address this question, we artificially targeted Drosophila CENH3 (CENP-A/CID) as a CID-GFP-LacI fusion protein to stably integrated lac operator (lacO) arrays. This ectopic CID focus assembles a functional kinetochore and directs incorporation of CID molecules without the LacI-anchor, providing evidence for the self-propagation of the epigenetic mark. CID-GFP-LacI-bound extrachromosomal lacO plasmids can assemble kinetochore proteins and bind microtubules, resulting in their stable transmission for several cell generations even after eliminating CID-GFP-LacI. We conclude that CID is both necessary and sufficient to serve as an epigenetic centromere mark and nucleate heritable centromere function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mendiburo, Maria Jose -- Padeken, Jan -- Fulop, Stefanie -- Schepers, Aloys -- Heun, Patrick -- New York, N.Y. -- Science. 2011 Nov 4;334(6056):686-90. doi: 10.1126/science.1206880.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Planck Institute of Immunobiology, Stubeweg 51, 79108 Freiburg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22053052" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Centromere/*physiology ; DNA-Binding Proteins ; Drosophila/*genetics ; Drosophila Proteins ; Epigenesis, Genetic ; Histones/*physiology ; Kinetochores/physiology ; Recombinant Fusion Proteins
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 38
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    Mutations in the RNA granule component TDRD7 cause cataract and glaucoma (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-03-26
    Description: The precise transcriptional regulation of gene expression is essential for vertebrate development, but the role of posttranscriptional regulatory mechanisms is less clear. Cytoplasmic RNA granules (RGs) function in the posttranscriptional control of gene expression, but the extent of RG involvement in organogenesis is unknown. We describe two human cases of pediatric cataract with loss-of-function mutations in TDRD7 and demonstrate that Tdrd7 nullizygosity in mouse causes cataracts, as well as glaucoma and an arrest in spermatogenesis. TDRD7 is a Tudor domain RNA binding protein that is expressed in lens fiber cells in distinct TDRD7-RGs that interact with STAU1-ribonucleoproteins (RNPs). TDRD7 coimmunoprecipitates with specific lens messenger RNAs (mRNAs) and is required for the posttranscriptional control of mRNAs that are critical to normal lens development and to RG function. These findings demonstrate a role for RGs in vertebrate organogenesis.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3279122/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3279122/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lachke, Salil A -- Alkuraya, Fowzan S -- Kneeland, Stephen C -- Ohn, Takbum -- Aboukhalil, Anton -- Howell, Gareth R -- Saadi, Irfan -- Cavallesco, Resy -- Yue, Yingzi -- Tsai, Anne C-H -- Nair, K Saidas -- Cosma, Mihai I -- Smith, Richard S -- Hodges, Emily -- Alfadhli, Suad M -- Al-Hajeri, Amal -- Shamseldin, Hanan E -- Behbehani, Abdulmutalib -- Hannon, Gregory J -- Bulyk, Martha L -- Drack, Arlene V -- Anderson, Paul J -- John, Simon W M -- Maas, Richard L -- P01 GM061354/GM/NIGMS NIH HHS/ -- P01 GM061354-07/GM/NIGMS NIH HHS/ -- R01 EY010123/EY/NEI NIH HHS/ -- R01 EY010123-15/EY/NEI NIH HHS/ -- R01 EY011721/EY/NEI NIH HHS/ -- R01 EY011721-15/EY/NEI NIH HHS/ -- R01 EY10123/EY/NEI NIH HHS/ -- R01 EY11721/EY/NEI NIH HHS/ -- R01 HD060050/HD/NICHD NIH HHS/ -- R01 HD060050-04/HD/NICHD NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Mar 25;331(6024):1571-6. doi: 10.1126/science.1195970.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Genetics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21436445" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cataract/congenital/*genetics/pathology ; Cell Line ; Chick Embryo ; Crystallins/genetics/metabolism ; Cytoplasmic Granules/metabolism ; Embryonic Development ; Female ; *Gene Expression Regulation, Developmental ; Gene Knockdown Techniques ; Glaucoma/*genetics ; Humans ; Hypospadias/genetics ; Lens, Crystalline/embryology/*metabolism ; Male ; Mice ; Mutation ; Organogenesis ; Protein Biosynthesis ; RNA, Messenger/*genetics/*metabolism ; RNA-Binding Proteins/genetics/metabolism ; Ribonucleoproteins/genetics/*metabolism ; Spermatogenesis/genetics
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 39
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    Antagonists induce a conformational change in cIAP1 that promotes autoubiquitination (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-10-25
    Description: Inhibitor of apoptosis (IAP) proteins are negative regulators of cell death. IAP family members contain RING domains that impart E3 ubiquitin ligase activity. Binding of endogenous or small-molecule antagonists to select baculovirus IAP repeat (BIR) domains within cellular IAP (cIAP) proteins promotes autoubiquitination and proteasomal degradation and so releases inhibition of apoptosis mediated by cIAP. Although the molecular details of antagonist-BIR domain interactions are well understood, it is not clear how this binding event influences the activity of the RING domain. Here biochemical and structural studies reveal that the unliganded, multidomain cIAP1 sequesters the RING domain within a compact, monomeric structure that prevents RING dimerization. Antagonist binding induces conformational rearrangements that enable RING dimerization and formation of the active E3 ligase.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dueber, Erin C -- Schoeffler, Allyn J -- Lingel, Andreas -- Elliott, J Michael -- Fedorova, Anna V -- Giannetti, Anthony M -- Zobel, Kerry -- Maurer, Brigitte -- Varfolomeev, Eugene -- Wu, Ping -- Wallweber, Heidi J A -- Hymowitz, Sarah G -- Deshayes, Kurt -- Vucic, Domagoj -- Fairbrother, Wayne J -- P41RR001209/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2011 Oct 21;334(6054):376-80. doi: 10.1126/science.1207862.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Early Discovery Biochemistry, Genentech, 1 DNA Way, South San Francisco, CA 94080, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22021857" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cell Line ; Cell Line, Tumor ; Cloning, Molecular ; Humans ; Hydrophobic and Hydrophilic Interactions ; Inhibitor of Apoptosis Proteins/*antagonists & inhibitors/*chemistry/metabolism ; Mice ; Models, Biological ; Models, Molecular ; Molecular Sequence Data ; Mutagenesis, Site-Directed ; Proteasome Endopeptidase Complex/metabolism ; Protein Conformation ; Protein Interaction Domains and Motifs ; Protein Multimerization ; Protein Structure, Secondary ; Scattering, Small Angle ; Ubiquitin-Protein Ligases/chemistry/metabolism ; Ubiquitinated Proteins/chemistry/metabolism ; Ubiquitination
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Mutational inactivation of STAG2 causes aneuploidy in human cancer (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-08-20
    Description: Most cancer cells are characterized by aneuploidy, an abnormal number of chromosomes. We have identified a clue to the mechanistic origins of aneuploidy through integrative genomic analyses of human tumors. A diverse range of tumor types were found to harbor deletions or inactivating mutations of STAG2, a gene encoding a subunit of the cohesin complex, which regulates the separation of sister chromatids during cell division. Because STAG2 is on the X chromosome, its inactivation requires only a single mutational event. Studying a near-diploid human cell line with a stable karyotype, we found that targeted inactivation of STAG2 led to chromatid cohesion defects and aneuploidy, whereas in two aneuploid human glioblastoma cell lines, targeted correction of the endogenous mutant alleles of STAG2 led to enhanced chromosomal stability. Thus, genetic disruption of cohesin is a cause of aneuploidy in human cancer.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3374335/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3374335/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Solomon, David A -- Kim, Taeyeon -- Diaz-Martinez, Laura A -- Fair, Joshlean -- Elkahloun, Abdel G -- Harris, Brent T -- Toretsky, Jeffrey A -- Rosenberg, Steven A -- Shukla, Neerav -- Ladanyi, Marc -- Samuels, Yardena -- James, C David -- Yu, Hongtao -- Kim, Jung-Sik -- Waldman, Todd -- CA097257/CA/NCI NIH HHS/ -- R01 CA133662/CA/NCI NIH HHS/ -- R01 CA138212/CA/NCI NIH HHS/ -- R01 CA169345/CA/NCI NIH HHS/ -- R01CA115699/CA/NCI NIH HHS/ -- R21CA143282/CA/NCI NIH HHS/ -- Z01 HG200337-01/Intramural NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Aug 19;333(6045):1039-43. doi: 10.1126/science.1203619.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University School of Medicine, Washington, DC 20057, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21852505" target="_blank"〉PubMed〈/a〉
    Keywords: *Aneuploidy ; Antigens, Nuclear/*genetics/*physiology ; Cell Cycle ; Cell Line ; Cell Line, Tumor ; Chromatids/physiology ; *Chromosomal Instability ; Chromosomes, Human, X/genetics ; Female ; Gene Deletion ; Gene Expression Profiling ; Gene Expression Regulation, Neoplastic ; Gene Silencing ; Gene Targeting ; Glioblastoma/*genetics ; Humans ; Karyotyping ; Male ; Melanoma/genetics ; Mutation ; Neoplasms/*genetics ; Polymorphism, Single Nucleotide ; Sarcoma, Ewing/genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Tet-mediated formation of 5-carboxylcytosine and its excision by TDG in mammalian DNA (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-08-06
    Description: The prevalent DNA modification in higher organisms is the methylation of cytosine to 5-methylcytosine (5mC), which is partially converted to 5-hydroxymethylcytosine (5hmC) by the Tet (ten eleven translocation) family of dioxygenases. Despite their importance in epigenetic regulation, it is unclear how these cytosine modifications are reversed. Here, we demonstrate that 5mC and 5hmC in DNA are oxidized to 5-carboxylcytosine (5caC) by Tet dioxygenases in vitro and in cultured cells. 5caC is specifically recognized and excised by thymine-DNA glycosylase (TDG). Depletion of TDG in mouse embyronic stem cells leads to accumulation of 5caC to a readily detectable level. These data suggest that oxidation of 5mC by Tet proteins followed by TDG-mediated base excision of 5caC constitutes a pathway for active DNA demethylation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3462231/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3462231/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉He, Yu-Fei -- Li, Bin-Zhong -- Li, Zheng -- Liu, Peng -- Wang, Yang -- Tang, Qingyu -- Ding, Jianping -- Jia, Yingying -- Chen, Zhangcheng -- Li, Lin -- Sun, Yan -- Li, Xiuxue -- Dai, Qing -- Song, Chun-Xiao -- Zhang, Kangling -- He, Chuan -- Xu, Guo-Liang -- 1S10RR027643-01/RR/NCRR NIH HHS/ -- GM071440/GM/NIGMS NIH HHS/ -- R01 GM071440/GM/NIGMS NIH HHS/ -- S10 RR027643/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2011 Sep 2;333(6047):1303-7. doi: 10.1126/science.1210944. Epub 2011 Aug 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Group of DNA Metabolism, State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai 200031, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21817016" target="_blank"〉PubMed〈/a〉
    Keywords: 5-Methylcytosine/metabolism ; Animals ; Cell Line ; Cytosine/*analogs & derivatives/metabolism ; DNA/*metabolism ; DNA Methylation ; DNA-Binding Proteins/genetics/*metabolism ; Embryonic Stem Cells ; HEK293 Cells ; Humans ; Induced Pluripotent Stem Cells/metabolism ; Mice ; Oxidation-Reduction ; Proto-Oncogene Proteins/genetics/*metabolism ; RNA, Small Interfering ; Thymine DNA Glycosylase/genetics/*metabolism ; Transfection
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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