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  • 1
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    Deubiquitinase DUBA is a post-translational brake on interleukin-17 production in T cells (2014)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2014-12-04
    Description: T-helper type 17 (TH17) cells that produce the cytokines interleukin-17A (IL-17A) and IL-17F are implicated in the pathogenesis of several autoimmune diseases. The differentiation of TH17 cells is regulated by transcription factors such as RORgammat, but post-translational mechanisms preventing the rampant production of pro-inflammatory IL-17A have received less attention. Here we show that the deubiquitylating enzyme DUBA is a negative regulator of IL-17A production in T cells. Mice with DUBA-deficient T cells developed exacerbated inflammation in the small intestine after challenge with anti-CD3 antibodies. DUBA interacted with the ubiquitin ligase UBR5, which suppressed DUBA abundance in naive T cells. DUBA accumulated in activated T cells and stabilized UBR5, which then ubiquitylated RORgammat in response to TGF-beta signalling. Our data identify DUBA as a cell-intrinsic suppressor of IL-17 production.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rutz, Sascha -- Kayagaki, Nobuhiko -- Phung, Qui T -- Eidenschenk, Celine -- Noubade, Rajkumar -- Wang, Xiaoting -- Lesch, Justin -- Lu, Rongze -- Newton, Kim -- Huang, Oscar W -- Cochran, Andrea G -- Vasser, Mark -- Fauber, Benjamin P -- DeVoss, Jason -- Webster, Joshua -- Diehl, Lauri -- Modrusan, Zora -- Kirkpatrick, Donald S -- Lill, Jennie R -- Ouyang, Wenjun -- Dixit, Vishva M -- England -- Nature. 2015 Feb 19;518(7539):417-21. doi: 10.1038/nature13979. Epub 2014 Dec 3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology, Genentech, 1 DNA Way, South San Francisco, California 94080, USA. ; Department of Physiological Chemistry, Genentech, 1 DNA Way, South San Francisco, California 94080, USA. ; Department of Protein Chemistry, Genentech, 1 DNA Way, South San Francisco, California 94080, USA. ; Department of Early Discovery Biochemistry, Genentech, 1 DNA Way, South San Francisco, California 94080, USA. ; Discovery Chemistry, Genentech, 1 DNA Way, South San Francisco, California 94080, USA. ; Department of Pathology, Genentech, 1 DNA Way, South San Francisco, California 94080, USA. ; Department of Molecular Biology, Genentech, 1 DNA Way, South San Francisco, California 94080, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25470037" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Enzyme Stability ; Female ; Inflammation/genetics/pathology ; Interleukin-17/*biosynthesis ; Intestine, Small/metabolism/pathology ; Lymphocyte Activation ; Mice ; Mice, Inbred C57BL ; Nuclear Receptor Subfamily 1, Group F, Member 3/metabolism ; Proteasome Endopeptidase Complex/metabolism ; Protein Binding ; *Protein Biosynthesis ; Signal Transduction ; Substrate Specificity ; Th17 Cells/*metabolism ; Transforming Growth Factor beta/metabolism ; Ubiquitin-Protein Ligases/metabolism ; Ubiquitin-Specific Proteases/biosynthesis/deficiency/genetics/*metabolism ; Ubiquitination
    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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  • 2
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    The oyster genome reveals stress adaptation and complexity of shell formation (2012)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2012-09-21
    Description: The Pacific oyster Crassostrea gigas belongs to one of the most species-rich but genomically poorly explored phyla, the Mollusca. Here we report the sequencing and assembly of the oyster genome using short reads and a fosmid-pooling strategy, along with transcriptomes of development and stress response and the proteome of the shell. The oyster genome is highly polymorphic and rich in repetitive sequences, with some transposable elements still actively shaping variation. Transcriptome studies reveal an extensive set of genes responding to environmental stress. The expansion of genes coding for heat shock protein 70 and inhibitors of apoptosis is probably central to the oyster's adaptation to sessile life in the highly stressful intertidal zone. Our analyses also show that shell formation in molluscs is more complex than currently understood and involves extensive participation of cells and their exosomes. The oyster genome sequence fills a void in our understanding of the Lophotrochozoa.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Guofan -- Fang, Xiaodong -- Guo, Ximing -- Li, Li -- Luo, Ruibang -- Xu, Fei -- Yang, Pengcheng -- Zhang, Linlin -- Wang, Xiaotong -- Qi, Haigang -- Xiong, Zhiqiang -- Que, Huayong -- Xie, Yinlong -- Holland, Peter W H -- Paps, Jordi -- Zhu, Yabing -- Wu, Fucun -- Chen, Yuanxin -- Wang, Jiafeng -- Peng, Chunfang -- Meng, Jie -- Yang, Lan -- Liu, Jun -- Wen, Bo -- Zhang, Na -- Huang, Zhiyong -- Zhu, Qihui -- Feng, Yue -- Mount, Andrew -- Hedgecock, Dennis -- Xu, Zhe -- Liu, Yunjie -- Domazet-Loso, Tomislav -- Du, Yishuai -- Sun, Xiaoqing -- Zhang, Shoudu -- Liu, Binghang -- Cheng, Peizhou -- Jiang, Xuanting -- Li, Juan -- Fan, Dingding -- Wang, Wei -- Fu, Wenjing -- Wang, Tong -- Wang, Bo -- Zhang, Jibiao -- Peng, Zhiyu -- Li, Yingxiang -- Li, Na -- Wang, Jinpeng -- Chen, Maoshan -- He, Yan -- Tan, Fengji -- Song, Xiaorui -- Zheng, Qiumei -- Huang, Ronglian -- Yang, Hailong -- Du, Xuedi -- Chen, Li -- Yang, Mei -- Gaffney, Patrick M -- Wang, Shan -- Luo, Longhai -- She, Zhicai -- Ming, Yao -- Huang, Wen -- Zhang, Shu -- Huang, Baoyu -- Zhang, Yong -- Qu, Tao -- Ni, Peixiang -- Miao, Guoying -- Wang, Junyi -- Wang, Qiang -- Steinberg, Christian E W -- Wang, Haiyan -- Li, Ning -- Qian, Lumin -- Zhang, Guojie -- Li, Yingrui -- Yang, Huanming -- Liu, Xiao -- Wang, Jian -- Yin, Ye -- Wang, Jun -- 268513/European Research Council/International -- England -- Nature. 2012 Oct 4;490(7418):49-54. doi: 10.1038/nature11413. Epub 2012 Sep 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22992520" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological/*genetics ; Animal Shells/chemistry/*growth & development ; Animals ; Apoptosis Regulatory Proteins/genetics ; Crassostrea/*genetics ; DNA Transposable Elements/genetics ; Evolution, Molecular ; Female ; Gene Expression Regulation, Developmental/genetics ; Genes, Homeobox/genetics ; Genome/*genetics ; Genomics ; HSP70 Heat-Shock Proteins/genetics ; Humans ; Larva/genetics/growth & development ; Mass Spectrometry ; Molecular Sequence Annotation ; Molecular Sequence Data ; Polymorphism, Genetic/genetics ; Repetitive Sequences, Nucleic Acid/genetics ; Sequence Analysis, DNA ; Stress, Physiological/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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  • 3
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    Social reward requires coordinated activity of nucleus accumbens oxytocin and serotonin (2013)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2013-09-13
    Description: Social behaviours in species as diverse as honey bees and humans promote group survival but often come at some cost to the individual. Although reinforcement of adaptive social interactions is ostensibly required for the evolutionary persistence of these behaviours, the neural mechanisms by which social reward is encoded by the brain are largely unknown. Here we demonstrate that in mice oxytocin acts as a social reinforcement signal within the nucleus accumbens core, where it elicits a presynaptically expressed long-term depression of excitatory synaptic transmission in medium spiny neurons. Although the nucleus accumbens receives oxytocin-receptor-containing inputs from several brain regions, genetic deletion of these receptors specifically from dorsal raphe nucleus, which provides serotonergic (5-hydroxytryptamine; 5-HT) innervation to the nucleus accumbens, abolishes the reinforcing properties of social interaction. Furthermore, oxytocin-induced synaptic plasticity requires activation of nucleus accumbens 5-HT1B receptors, the blockade of which prevents social reward. These results demonstrate that the rewarding properties of social interaction in mice require the coordinated activity of oxytocin and 5-HT in the nucleus accumbens, a mechanistic insight with implications for understanding the pathogenesis of social dysfunction in neuropsychiatric disorders such as autism.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4091761/" 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/PMC4091761/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dolen, Gul -- Darvishzadeh, Ayeh -- Huang, Kee Wui -- Malenka, Robert C -- NS069375/NS/NINDS NIH HHS/ -- P01 DA008227/DA/NIDA NIH HHS/ -- P30 NS069375/NS/NINDS NIH HHS/ -- R21 DA032955/DA/NIDA NIH HHS/ -- England -- Nature. 2013 Sep 12;501(7466):179-84. doi: 10.1038/nature12518.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Nancy Pritzker Laboratory, Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 265 Campus Drive, Stanford, California 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24025838" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autistic Disorder/physiopathology ; Conditioning (Psychology) ; Female ; Gene Deletion ; Long-Term Synaptic Depression ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Mice, Transgenic ; Neurons/metabolism ; Nucleus Accumbens/cytology/*metabolism ; Oxytocin/deficiency/genetics/*metabolism ; Presynaptic Terminals/metabolism ; Raphe Nuclei/metabolism ; Receptor, Serotonin, 5-HT1B/metabolism ; Receptors, Oxytocin/deficiency/genetics/metabolism ; *Reward ; Serotonin/*metabolism ; *Social Behavior ; Synaptic Transmission
    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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    Crystal structure of a catalytic antibody with a serine protease active site (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-08-19
    Description: The three-dimensional structure of an unusually active hydrolytic antibody with a phosphonate transition state analog (hapten) bound to the active site has been solved to 2.5 A resolution. The antibody (17E8) catalyzes the hydrolysis of norleucine and methionine phenyl esters and is selective for amino acid esters that have the natural alpha-carbon L configuration. A plot of the pH-dependence of the antibody-catalyzed reaction is bell-shaped with an activity maximum at pH 9.5; experiments on mechanism lend support to the formation of a covalent acyl-antibody intermediate. The structural and kinetic data are complementary and support a hydrolytic mechanism for the antibody that is remarkably similar to that of the serine proteases. The antibody active site contains a Ser-His dyad structure proximal to the phosphorous atom of the bound hapten that resembles two of the three components of the Ser-His-Asp catalytic triad of serine proteases. The antibody active site also contains a Lys residue to stabilize oxyanion formation, and a hydrophobic binding pocket for specific substrate recognition of norleucine and methionine side chains. The structure identifies active site residues that mediate catalysis and suggests specific mutations that may improve the catalytic efficiency of the antibody. This high resolution structure of a catalytic antibody-hapten complex shows that antibodies can converge on active site structures that have arisen through natural enzyme evolution.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhou, G W -- Guo, J -- Huang, W -- Fletterick, R J -- Scanlan, T S -- DK39304/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1994 Aug 19;265(5175):1059-64.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Biophysics, University of California, San Francisco 94143-0448.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8066444" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antibodies, Catalytic/*chemistry/immunology/metabolism ; Binding Sites ; Computer Graphics ; Crystallization ; Crystallography, X-Ray ; Haptens/metabolism ; Hydrogen Bonding ; Hydrogen-Ion Concentration ; Hydrolysis ; Models, Molecular ; Molecular Sequence Data ; Protein Conformation ; Serine Endopeptidases/*chemistry/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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