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  • Molecular Sequence Data  (3)
  • ASTROPHYSICS
  • Astrophysics
  • Polymer and Materials Science
  • American Association for the Advancement of Science (AAAS)  (3)
  • 2010-2014  (2)
  • 1990-1994  (1)
  • 1970-1974
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  • 1
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    Signatures of adaptation to obligate biotrophy in the Hyaloperonospora arabidopsidis genome (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-12-15
    Description: Many oomycete and fungal plant pathogens are obligate biotrophs, which extract nutrients only from living plant tissue and cannot grow apart from their hosts. Although these pathogens cause substantial crop losses, little is known about the molecular basis or evolution of obligate biotrophy. Here, we report the genome sequence of the oomycete Hyaloperonospora arabidopsidis (Hpa), an obligate biotroph and natural pathogen of Arabidopsis thaliana. In comparison with genomes of related, hemibiotrophic Phytophthora species, the Hpa genome exhibits dramatic reductions in genes encoding (i) RXLR effectors and other secreted pathogenicity proteins, (ii) enzymes for assimilation of inorganic nitrogen and sulfur, and (iii) proteins associated with zoospore formation and motility. These attributes comprise a genomic signature of evolution toward obligate biotrophy.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3971456/" 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/PMC3971456/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baxter, Laura -- Tripathy, Sucheta -- Ishaque, Naveed -- Boot, Nico -- Cabral, Adriana -- Kemen, Eric -- Thines, Marco -- Ah-Fong, Audrey -- Anderson, Ryan -- Badejoko, Wole -- Bittner-Eddy, Peter -- Boore, Jeffrey L -- Chibucos, Marcus C -- Coates, Mary -- Dehal, Paramvir -- Delehaunty, Kim -- Dong, Suomeng -- Downton, Polly -- Dumas, Bernard -- Fabro, Georgina -- Fronick, Catrina -- Fuerstenberg, Susan I -- Fulton, Lucinda -- Gaulin, Elodie -- Govers, Francine -- Hughes, Linda -- Humphray, Sean -- Jiang, Rays H Y -- Judelson, Howard -- Kamoun, Sophien -- Kyung, Kim -- Meijer, Harold -- Minx, Patrick -- Morris, Paul -- Nelson, Joanne -- Phuntumart, Vipa -- Qutob, Dinah -- Rehmany, Anne -- Rougon-Cardoso, Alejandra -- Ryden, Peter -- Torto-Alalibo, Trudy -- Studholme, David -- Wang, Yuanchao -- Win, Joe -- Wood, Jo -- Clifton, Sandra W -- Rogers, Jane -- Van den Ackerveken, Guido -- Jones, Jonathan D G -- McDowell, John M -- Beynon, Jim -- Tyler, Brett M -- 079643/Wellcome Trust/United Kingdom -- BB/C509123/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- BB/E007120/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- BB/E024815/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- BB/E024882/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- BB/F0161901/Biotechnology and Biological Sciences Research Council/United Kingdom -- BB/G015244/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- EP/F500025/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- T12144/Biotechnology and Biological Sciences Research Council/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2010 Dec 10;330(6010):1549-51. doi: 10.1126/science.1195203.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Life Sciences, Warwick University, Wellesbourne, CV35 9EF, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21148394" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; Amino Acid Sequence ; Arabidopsis/*parasitology ; Enzymes/genetics ; *Evolution, Molecular ; Gene Dosage ; Genes ; *Genome ; Host-Pathogen Interactions ; Metabolic Networks and Pathways/genetics ; Molecular Sequence Data ; Oomycetes/*genetics/*growth & development/pathogenicity/physiology ; Phytophthora/genetics ; Plant Diseases/*parasitology ; Polymorphism, Single Nucleotide ; Proteins/genetics ; Selection, Genetic ; Sequence Analysis, DNA ; Spores/physiology ; Synteny ; Virulence Factors/genetics
    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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  • 2
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    Copy number variation of multiple genes at Rhg1 mediates nematode resistance in soybean (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-10-16
    Description: The rhg1-b allele of soybean is widely used for resistance against soybean cyst nematode (SCN), the most economically damaging pathogen of soybeans in the United States. Gene silencing showed that genes in a 31-kilobase segment at rhg1-b, encoding an amino acid transporter, an alpha-SNAP protein, and a WI12 (wound-inducible domain) protein, each contribute to resistance. There is one copy of the 31-kilobase segment per haploid genome in susceptible varieties, but 10 tandem copies are present in an rhg1-b haplotype. Overexpression of the individual genes in roots was ineffective, but overexpression of the genes together conferred enhanced SCN resistance. Hence, SCN resistance mediated by the soybean quantitative trait locus Rhg1 is conferred by copy number variation that increases the expression of a set of dissimilar genes in a repeated multigene segment.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cook, David E -- Lee, Tong Geon -- Guo, Xiaoli -- Melito, Sara -- Wang, Kai -- Bayless, Adam M -- Wang, Jianping -- Hughes, Teresa J -- Willis, David K -- Clemente, Thomas E -- Diers, Brian W -- Jiang, Jiming -- Hudson, Matthew E -- Bent, Andrew F -- New York, N.Y. -- Science. 2012 Nov 30;338(6111):1206-9. doi: 10.1126/science.1228746. Epub 2012 Oct 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Pathology, University of Wisconsin, Madison, WI 53706, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23065905" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Amino Acid Sequence ; Animals ; *Gene Dosage ; Gene Expression Regulation, Plant ; *Genetic Loci ; Genetic Variation ; Haplotypes ; Male ; Molecular Sequence Data ; Plant Diseases/*genetics/*parasitology ; Plant Proteins/*genetics ; Plant Roots/genetics/parasitology ; Protein Structure, Tertiary/genetics ; Soluble N-Ethylmaleimide-Sensitive Factor Attachment Proteins/genetics ; Soybeans/*genetics/*parasitology ; *Tylenchoidea
    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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  • 3
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    Fatty acylation of two internal lysine residues required for the toxic activity of Escherichia coli hemolysin (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-23
    Description: Hemolysin of Escherichia coli is activated by fatty acylation of the protoxin, directed by the putative acyl transferase HlyC and by acyl carrier protein (ACP). Mass spectrometry and Edman degradation of proteolytic products from mature toxin activated in vitro with tritium-labeled acylACP revealed two fatty-acylated internal lysine residues, lysine 564 and lysine 690. Resistance of the acylation to chemical treatments suggested that fatty acid was amide linked. Substitution of the two lysines confirmed that they were the only sites of acylation and showed that although each was acylated in the absence of the other, both sites were required for in vivo toxin activity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stanley, P -- Packman, L C -- Koronakis, V -- Hughes, C -- New York, N.Y. -- Science. 1994 Dec 23;266(5193):1992-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Cambridge University, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7801126" target="_blank"〉PubMed〈/a〉
    Keywords: Acyl Carrier Protein/metabolism ; Acylation ; Acyltransferases/metabolism ; Amino Acid Sequence ; Animals ; Bacterial Proteins/chemistry/metabolism/*toxicity ; Bacterial Toxins/chemistry/metabolism/*toxicity ; *Escherichia coli ; *Escherichia coli Proteins ; Hemolysin Proteins/chemistry/metabolism/*toxicity ; Hemolysis ; Horses ; Lysine/metabolism ; Mass Spectrometry ; Molecular Sequence Data ; Protein Precursors/metabolism ; Sequence Alignment
    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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