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  • 1
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    Morphological reassessment and molecular phylogenetic analyses of Amauroderma s.lat. raised new perspectives in the generic classification of the Ganodermataceae family (2017)
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi (1878-9080) vol.39 (2017) p.254
    Details
    Publication Date: 2017-09-26
    Description: Ganodermataceae is a remarkable group of polypore fungi, mainly characterized by particular doublewalled basidiospores with a coloured endosporium ornamented with columns or crests, and a hyaline smooth exosporium. In order to establish an integrative morphological and molecular phylogenetic approach to clarify relationship of Neotropical Amauroderma s.lat. within the Ganodermataceae family, morphological analyses, including scanning electron microscopy, as well as a molecular phylogenetic approach based on one (ITS) and four loci (ITS-5.8S, LSU, TEF-1α and RPB1), were carried out. Ultrastructural analyses raised up a new character for Ganodermataceae systematics, i.e., the presence of perforation in the exosporium with holes that are connected with hollow columns of the endosporium. This character is considered as a synapomorphy in Foraminispora, a new genus proposed here to accommodate Porothelium rugosum (≡ Amauroderma sprucei). Furtadoa is proposed to accommodate species with monomitic context: F. biseptata, F. brasiliensis and F. corneri. Molecular phylogenetic analyses confirm that both genera grouped as strongly supported distinct lineages out of the Amauroderma s.str. clade.
    Keywords: Amauroderma ; Ganoderma ; polyporales ; systematics ; ultrastructure
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 2
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    Morphological reassessment and molecular phylogenetic analyses of Amauroderma s.lat. raised new perspectives in the generic classification of the Ganodermataceae family (2017)
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 39, pp. 254-269
    Details
    Publication Date: 2024-01-12
    Description: Ganodermataceae is a remarkable group of polypore fungi, mainly characterized by particular doublewalled basidiospores with a coloured endosporium ornamented with columns or crests, and a hyaline smooth exosporium. In order to establish an integrative morphological and molecular phylogenetic approach to clarify relationship of Neotropical Amauroderma s.lat. within the Ganodermataceae family, morphological analyses, including scanning electron microscopy, as well as a molecular phylogenetic approach based on one (ITS) and four loci (ITS-5.8S, LSU, TEF-1\xce\xb1 and RPB1), were carried out. Ultrastructural analyses raised up a new character for Ganodermataceae systematics, i.e., the presence of perforation in the exosporium with holes that are connected with hollow columns of the endosporium. This character is considered as a synapomorphy in Foraminispora, a new genus proposed here to accommodate Porothelium rugosum (\xe2\x89\xa1 Amauroderma sprucei). Furtadoa is proposed to accommodate species with monomitic context: F. biseptata, F. brasiliensis and F. corneri. Molecular phylogenetic analyses \nconfirm that both genera grouped as strongly supported distinct lineages out of the Amauroderma s.str. clade.
    Keywords: Amauroderma ; Ganoderma ; polyporales ; systematics ; ultrastructure
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 3
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    Opposing effects of polyglutamine expansion on native protein complexes contribute to SCA1 (2008)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2008-03-14
    Description: Spinocerebellar ataxia type 1 (SCA1) is a dominantly inherited neurodegenerative disease caused by expansion of a glutamine-encoding repeat in ataxin 1 (ATXN1). In all known polyglutamine diseases, the glutamine expansion confers toxic functions onto the protein; however, the mechanism by which this occurs remains enigmatic, in light of the fact that the mutant protein apparently maintains interactions with its usual partners. Here we show that the expanded polyglutamine tract differentially affects the function of the host protein in the context of different endogenous protein complexes. Polyglutamine expansion in ATXN1 favours the formation of a particular protein complex containing RBM17, contributing to SCA1 neuropathology by means of a gain-of-function mechanism. Concomitantly, polyglutamine expansion attenuates the formation and function of another protein complex containing ATXN1 and capicua, contributing to SCA1 through a partial loss-of-function mechanism. This model provides mechanistic insight into the molecular pathogenesis of SCA1 as well as other polyglutamine diseases.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2377396/" 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/PMC2377396/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lim, Janghoo -- Crespo-Barreto, Juan -- Jafar-Nejad, Paymaan -- Bowman, Aaron B -- Richman, Ronald -- Hill, David E -- Orr, Harry T -- Zoghbi, Huda Y -- P30 HD024064/HD/NICHD NIH HHS/ -- P30 HD024064-19/HD/NICHD NIH HHS/ -- R01 NS027699/NS/NINDS NIH HHS/ -- R01 NS027699-19/NS/NINDS NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2008 Apr 10;452(7188):713-8. doi: 10.1038/nature06731. Epub 2008 Mar 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas 77030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18337722" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Ataxin-1 ; Ataxins ; Drosophila Proteins/genetics/metabolism ; Drosophila melanogaster ; Humans ; Mice ; Multiprotein Complexes/chemistry/metabolism ; Nerve Tissue Proteins/chemistry/genetics/*metabolism ; Nuclear Proteins/chemistry/genetics/*metabolism ; Open Reading Frames/genetics ; Peptides/genetics/*metabolism ; Protein Binding ; Protein Structure, Quaternary ; Purkinje Cells/cytology/metabolism ; RNA-Binding Proteins/genetics/metabolism ; Repressor Proteins/metabolism ; Ribonucleoprotein, U2 Small Nuclear/genetics/metabolism ; Spinocerebellar Ataxias/genetics/*metabolism/pathology ; *Trinucleotide Repeat Expansion/genetics ; Two-Hybrid System Techniques
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 4
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    Exercise and genetic rescue of SCA1 via the transcriptional repressor Capicua (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-11-05
    Description: Spinocerebellar ataxia type 1 (SCA1) is a fatal neurodegenerative disease caused by expansion of a translated CAG repeat in Ataxin-1 (ATXN1). To determine the long-term effects of exercise, we implemented a mild exercise regimen in a mouse model of SCA1 and found a considerable improvement in survival accompanied by up-regulation of epidermal growth factor and consequential down-regulation of Capicua, which is an ATXN1 interactor. Offspring of Capicua mutant mice bred to SCA1 mice showed significant improvement of all disease phenotypes. Although polyglutamine-expanded Atxn1 caused some loss of Capicua function, further reduction of Capicua levels--either genetically or by exercise--mitigated the disease phenotypes by dampening the toxic gain of function. Thus, exercise might have long-term beneficial effects in other ataxias and neurodegenerative diseases.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3232424/" 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/PMC3232424/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fryer, John D -- Yu, Peng -- Kang, Hyojin -- Mandel-Brehm, Caleigh -- Carter, Angela N -- Crespo-Barreto, Juan -- Gao, Yan -- Flora, Adriano -- Shaw, Chad -- Orr, Harry T -- Zoghbi, Huda Y -- 1F32NS055545/NS/NINDS NIH HHS/ -- HD24064/HD/NICHD NIH HHS/ -- NS022920/NS/NINDS NIH HHS/ -- NS045667/NS/NINDS NIH HHS/ -- NS27699/NS/NINDS NIH HHS/ -- NS27699-20S1/NS/NINDS NIH HHS/ -- P30 HD024064/HD/NICHD NIH HHS/ -- P30 HD024064-22/HD/NICHD NIH HHS/ -- P30 HD024064-23/HD/NICHD NIH HHS/ -- R01 NS027699/NS/NINDS NIH HHS/ -- R01 NS027699-20S1/NS/NINDS NIH HHS/ -- R01 NS027699-21/NS/NINDS NIH HHS/ -- R01 NS027699-22/NS/NINDS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Nov 4;334(6056):690-3. doi: 10.1126/science.1212673.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22053053" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Ataxin-1 ; Ataxins ; Cerebellum/metabolism ; Disease Models, Animal ; *Exercise Therapy ; Gene Knock-In Techniques ; Mice ; Mice, Inbred C57BL ; Mice, Mutant Strains ; Nerve Tissue Proteins/genetics ; Nuclear Proteins/genetics ; Repressor Proteins/genetics/*physiology ; Spinocerebellar Ataxias/genetics/*therapy
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 5
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    Linkage of G protein-coupled receptors to the MAPK signaling pathway through PI 3-kinase gamma (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-17
    Description: The tyrosine kinase class of receptors induces mitogen-activated protein kinase (MAPK) activation through the sequential interaction of the signaling proteins Grb2, Sos, Ras, Raf, and MEK. Receptors coupled to heterotrimeric guanine triphosphate-binding protein (G protein) stimulate MAPK through Gbetagamma subunits, but the subsequent intervening molecules are still poorly defined. Overexpression of phosphoinositide 3-kinase gamma (PI3Kgamma) in COS-7 cells activated MAPK in a Gbetagamma-dependent fashion, and expression of a catalytically inactive mutant of PI3Kgamma abolished the stimulation of MAPK by Gbetagamma or in response to stimulation of muscarinic (m2) G protein-coupled receptors. Signaling from PI3Kgamma to MAPK appears to require a tyrosine kinase, Shc, Grb2, Sos, Ras, and Raf. These findings indicate that PI3Kgamma mediates Gbetagamma-dependent regulation of the MAPK signaling pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lopez-Ilasaca, M -- Crespo, P -- Pellici, P G -- Gutkind, J S -- Wetzker, R -- New York, N.Y. -- Science. 1997 Jan 17;275(5298):394-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Planck Research Unit Molecular Cell Biology, Medical Faculty, University of Jena, 07747 Jena, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8994038" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptor Proteins, Signal Transducing ; Androstadienes/pharmacology ; Animals ; COS Cells ; Calcium-Calmodulin-Dependent Protein Kinases/*metabolism ; Carbachol/pharmacology ; Cell Membrane/enzymology ; Enzyme Activation ; GRB2 Adaptor Protein ; GTP-Binding Proteins/*metabolism ; Guanine Nucleotide Exchange Factors ; Mitogen-Activated Protein Kinase 1 ; Phosphatidylinositol 3-Kinases ; Phosphorylation ; Phosphotransferases (Alcohol Group Acceptor)/*metabolism ; Proteins/metabolism ; Receptor Protein-Tyrosine Kinases/metabolism ; Receptor, Muscarinic M2 ; Receptors, Muscarinic/metabolism ; Recombinant Fusion Proteins/metabolism ; *Signal Transduction ; Transfection ; Tyrosine/metabolism ; ras Guanine Nucleotide Exchange Factors ; ras Proteins/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 6
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    The genome of Tetranychus urticae reveals herbivorous pest adaptations (2011)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2011-11-25
    Description: The spider mite Tetranychus urticae is a cosmopolitan agricultural pest with an extensive host plant range and an extreme record of pesticide resistance. Here we present the completely sequenced and annotated spider mite genome, representing the first complete chelicerate genome. At 90 megabases T. urticae has the smallest sequenced arthropod genome. Compared with other arthropods, the spider mite genome shows unique changes in the hormonal environment and organization of the Hox complex, and also reveals evolutionary innovation of silk production. We find strong signatures of polyphagy and detoxification in gene families associated with feeding on different hosts and in new gene families acquired by lateral gene transfer. Deep transcriptome analysis of mites feeding on different plants shows how this pest responds to a changing host environment. The T. urticae genome thus offers new insights into arthropod evolution and plant-herbivore interactions, and provides unique opportunities for developing novel plant protection strategies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grbic, Miodrag -- Van Leeuwen, Thomas -- Clark, Richard M -- Rombauts, Stephane -- Rouze, Pierre -- Grbic, Vojislava -- Osborne, Edward J -- Dermauw, Wannes -- Ngoc, Phuong Cao Thi -- Ortego, Felix -- Hernandez-Crespo, Pedro -- Diaz, Isabel -- Martinez, Manuel -- Navajas, Maria -- Sucena, Elio -- Magalhaes, Sara -- Nagy, Lisa -- Pace, Ryan M -- Djuranovic, Sergej -- Smagghe, Guy -- Iga, Masatoshi -- Christiaens, Olivier -- Veenstra, Jan A -- Ewer, John -- Villalobos, Rodrigo Mancilla -- Hutter, Jeffrey L -- Hudson, Stephen D -- Velez, Marisela -- Yi, Soojin V -- Zeng, Jia -- Pires-daSilva, Andre -- Roch, Fernando -- Cazaux, Marc -- Navarro, Marie -- Zhurov, Vladimir -- Acevedo, Gustavo -- Bjelica, Anica -- Fawcett, Jeffrey A -- Bonnet, Eric -- Martens, Cindy -- Baele, Guy -- Wissler, Lothar -- Sanchez-Rodriguez, Aminael -- Tirry, Luc -- Blais, Catherine -- Demeestere, Kristof -- Henz, Stefan R -- Gregory, T Ryan -- Mathieu, Johannes -- Verdon, Lou -- Farinelli, Laurent -- Schmutz, Jeremy -- Lindquist, Erika -- Feyereisen, Rene -- Van de Peer, Yves -- England -- Nature. 2011 Nov 23;479(7374):487-92. doi: 10.1038/nature10640.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, The University of Western Ontario, London N6A 5B7, Canada. mgrbic@uwo.ca〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22113690" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological/*genetics/physiology ; Animals ; Ecdysterone/analogs & derivatives/genetics ; Evolution, Molecular ; Fibroins/genetics ; Gene Expression Regulation ; Gene Transfer, Horizontal/genetics ; Genes, Homeobox/genetics ; Genome/*genetics ; Genomics ; Herbivory/*genetics/physiology ; Molecular Sequence Data ; Molting/genetics ; Multigene Family/genetics ; Nanostructures/chemistry ; Plants/parasitology ; Silk/biosynthesis/chemistry ; Tetranychidae/*genetics/*physiology ; Transcriptome/genetics
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 7
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    Related target enhancers for dorsal and NF-kappa B signaling pathways (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-04-08
    Description: Drosophila dorsoventral (DV) patterning and mammalian hematopoiesis are regulated by related signaling pathways (Toll, interleukin-1) and transcription factors (dorsal, nuclear factor-kappa B). These factors interact with related enhancers, such as the rhomboid NEE and kappa light chain enhancer, that contain similar arrangements of activator and repressor binding sites. It is shown that the kappa enhancer can generate lateral stripes of gene expression in transgenic Drosophila embryos in a pattern similar to that directed by the rhomboid NEE. Drosophila DV determinants direct these stripes through the corresponding mammalian cis regulatory elements in the kappa enhancer, including the kappa B site and kappa E boxes. These results suggest that enhancers can couple conserved signaling pathways to divergent gene functions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gonzalez-Crespo, S -- Levine, M -- GM 46638/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1994 Apr 8;264(5156):255-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of California at San Diego, La Jolla 92093-0322.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8146656" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Genetically Modified ; Base Sequence ; Drosophila/embryology/*genetics ; *Drosophila Proteins ; Ectoderm/metabolism ; *Enhancer Elements, Genetic ; GTP-Binding Proteins/genetics ; Genes, Insect ; Helix-Loop-Helix Motifs ; Mesoderm/metabolism ; Molecular Sequence Data ; NF-kappa B/genetics/*metabolism ; Nuclear Proteins/genetics/*metabolism ; Phosphoproteins/genetics/*metabolism ; *Signal Transduction ; Transcription Factors/genetics/metabolism ; Transformation, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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