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  • Articles  (6)
  • Mutation  (6)
  • 2010-2014  (4)
  • 1985-1989  (2)
  • 1925-1929
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  • Articles  (6)
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  • 1
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    Substitutions near the receptor binding site determine major antigenic change during influenza virus evolution (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-11-23
    Description: The molecular basis of antigenic drift was determined for the hemagglutinin (HA) of human influenza A/H3N2 virus. From 1968 to 2003, antigenic change was caused mainly by single amino acid substitutions, which occurred at only seven positions in HA immediately adjacent to the receptor binding site. Most of these substitutions were involved in antigenic change more than once. Equivalent positions were responsible for the recent antigenic changes of influenza B and A/H1N1 viruses. Substitution of a single amino acid at one of these positions substantially changed the virus-specific antibody response in infected ferrets. These findings have potentially far-reaching consequences for understanding the evolutionary mechanisms that govern influenza viruses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koel, Bjorn F -- Burke, David F -- Bestebroer, Theo M -- van der Vliet, Stefan -- Zondag, Gerben C M -- Vervaet, Gaby -- Skepner, Eugene -- Lewis, Nicola S -- Spronken, Monique I J -- Russell, Colin A -- Eropkin, Mikhail Y -- Hurt, Aeron C -- Barr, Ian G -- de Jong, Jan C -- Rimmelzwaan, Guus F -- Osterhaus, Albert D M E -- Fouchier, Ron A M -- Smith, Derek J -- DP1-OD000490-01/OD/NIH HHS/ -- HHSN266200700010C/PHS HHS/ -- New York, N.Y. -- Science. 2013 Nov 22;342(6161):976-9. doi: 10.1126/science.1244730.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Viroscience, Erasmus MC, 3015GE Rotterdam, Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24264991" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Substitution/genetics/immunology ; Antigens, Viral/genetics/*immunology ; Binding Sites/genetics ; *Evolution, Molecular ; Hemagglutinin Glycoproteins, Influenza Virus/genetics/*immunology ; Humans ; Influenza A Virus, H3N2 Subtype/genetics/*immunology ; Mutation
    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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    Spiroindolones, a potent compound class for the treatment of malaria (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-09-04
    Description: Recent reports of increased tolerance to artemisinin derivatives--the most recently adopted class of antimalarials--have prompted a need for new treatments. The spirotetrahydro-beta-carbolines, or spiroindolones, are potent drugs that kill the blood stages of Plasmodium falciparum and Plasmodium vivax clinical isolates at low nanomolar concentration. Spiroindolones rapidly inhibit protein synthesis in P. falciparum, an effect that is ablated in parasites bearing nonsynonymous mutations in the gene encoding the P-type cation-transporter ATPase4 (PfATP4). The optimized spiroindolone NITD609 shows pharmacokinetic properties compatible with once-daily oral dosing and has single-dose efficacy in a rodent malaria model.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3050001/" 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/PMC3050001/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rottmann, Matthias -- McNamara, Case -- Yeung, Bryan K S -- Lee, Marcus C S -- Zou, Bin -- Russell, Bruce -- Seitz, Patrick -- Plouffe, David M -- Dharia, Neekesh V -- Tan, Jocelyn -- Cohen, Steven B -- Spencer, Kathryn R -- Gonzalez-Paez, Gonzalo E -- Lakshminarayana, Suresh B -- Goh, Anne -- Suwanarusk, Rossarin -- Jegla, Timothy -- Schmitt, Esther K -- Beck, Hans-Peter -- Brun, Reto -- Nosten, Francois -- Renia, Laurent -- Dartois, Veronique -- Keller, Thomas H -- Fidock, David A -- Winzeler, Elizabeth A -- Diagana, Thierry T -- R01 AI059472/AI/NIAID NIH HHS/ -- R01 AI059472-04/AI/NIAID NIH HHS/ -- R01 AI059472-05/AI/NIAID NIH HHS/ -- R01AI059472/AI/NIAID NIH HHS/ -- WT078285/Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2010 Sep 3;329(5996):1175-80. doi: 10.1126/science.1193225.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Swiss Tropical and Public Health Institute, Parasite Chemotherapy, CH-4002 Basel, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20813948" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphatases/antagonists & inhibitors/chemistry/genetics/metabolism ; Animals ; Antimalarials/administration & dosage/chemistry/pharmacokinetics/*pharmacology ; Cell Line ; Drug Discovery ; Drug Resistance ; Erythrocytes/parasitology ; Female ; Genes, Protozoan ; Humans ; Indoles/administration & dosage/chemistry/pharmacokinetics/*pharmacology ; Malaria/*drug therapy/parasitology ; Male ; Mice ; Models, Molecular ; Mutant Proteins/antagonists & inhibitors/chemistry/metabolism ; Mutation ; Parasitic Sensitivity Tests ; Plasmodium berghei/*drug effects ; Plasmodium falciparum/*drug effects/genetics/growth & development ; Plasmodium vivax/*drug effects/growth & development ; Protein Synthesis Inhibitors/administration & ; dosage/chemistry/pharmacokinetics/pharmacology ; Protozoan Proteins/biosynthesis/chemistry/genetics/metabolism ; Rats ; Rats, Wistar ; Spiro Compounds/administration & dosage/chemistry/pharmacokinetics/*pharmacology
    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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    TAF1B is a TFIIB-like component of the basal transcription machinery for RNA polymerase I (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-09-17
    Description: Transcription by eukaryotic RNA polymerases (Pols) II and III and archaeal Pol requires structurally related general transcription factors TFIIB, Brf1, and TFB, respectively, which are essential for polymerase recruitment and initiation events. A TFIIB-like protein was not evident in the Pol I basal transcription machinery. We report that TAF1B, a subunit of human Pol I basal transcription factor SL1, is structurally related to TFIIB/TFIIB-like proteins, through predicted amino-terminal zinc ribbon and cyclin-like fold domains. SL1, essential for Pol I recruitment to the ribosomal RNA gene promoter, also has an essential postpolymerase recruitment role, operating through TAF1B. Therefore, a TFIIB-related protein is implicated in preinitiation complex assembly and postpolymerase recruitment events in Pol I transcription, underscoring the parallels between eukaryotic Pol I, II, and III and archaeal transcription machineries.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3566551/" 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/PMC3566551/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Naidu, Srivatsava -- Friedrich, J Karsten -- Russell, Jackie -- Zomerdijk, Joost C B M -- 085441/Wellcome Trust/United Kingdom -- 085441/Z/08/Z/Wellcome Trust/United Kingdom -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2011 Sep 16;333(6049):1640-2. doi: 10.1126/science.1207656.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wellcome Trust Centre for Gene Regulation and Expression, College of Life Sciences, University of Dundee, Dundee DD1 5EH, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21921199" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; DNA, Ribosomal ; Humans ; Molecular Sequence Data ; Mutant Proteins/chemistry/metabolism ; Mutation ; Pol1 Transcription Initiation Complex Proteins/*chemistry/genetics/*metabolism ; Promoter Regions, Genetic ; Protein Binding ; Protein Folding ; Protein Structure, Tertiary ; Protein Subunits/chemistry/metabolism ; RNA Polymerase I/*metabolism ; Transcription Factor TFIIB/*chemistry/metabolism ; *Transcription, Genetic
    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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    The potential for respiratory droplet-transmissible A/H5N1 influenza virus to evolve in a mammalian host (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-06-23
    Description: Avian A/H5N1 influenza viruses pose a pandemic threat. As few as five amino acid substitutions, or four with reassortment, might be sufficient for mammal-to-mammal transmission through respiratory droplets. From surveillance data, we found that two of these substitutions are common in A/H5N1 viruses, and thus, some viruses might require only three additional substitutions to become transmissible via respiratory droplets between mammals. We used a mathematical model of within-host virus evolution to study factors that could increase and decrease the probability of the remaining substitutions evolving after the virus has infected a mammalian host. These factors, combined with the presence of some of these substitutions in circulating strains, make a virus evolving in nature a potentially serious threat. These results highlight critical areas in which more data are needed for assessing, and potentially averting, this threat.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3426314/" 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/PMC3426314/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Russell, Colin A -- Fonville, Judith M -- Brown, Andre E X -- Burke, David F -- Smith, David L -- James, Sarah L -- Herfst, Sander -- van Boheemen, Sander -- Linster, Martin -- Schrauwen, Eefje J -- Katzelnick, Leah -- Mosterin, Ana -- Kuiken, Thijs -- Maher, Eileen -- Neumann, Gabriele -- Osterhaus, Albert D M E -- Kawaoka, Yoshihiro -- Fouchier, Ron A M -- Smith, Derek J -- DP1 OD000490/OD/NIH HHS/ -- DP1-OD000490-01/OD/NIH HHS/ -- HHSN266200700010C/AI/NIAID NIH HHS/ -- HHSN266200700010C/PHS HHS/ -- R01 AI 069274/AI/NIAID NIH HHS/ -- R56 AI069274/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2012 Jun 22;336(6088):1541-7. doi: 10.1126/science.1222526.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Zoology, University of Cambridge, Cambridge, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22723414" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; Air Microbiology ; Amino Acid Substitution ; Animals ; Birds ; *Evolution, Molecular ; Genetic Fitness ; Glycosylation ; Hemagglutinin Glycoproteins, Influenza Virus/*genetics/metabolism ; High-Throughput Nucleotide Sequencing ; Humans ; Influenza A Virus, H5N1 Subtype/*genetics/*pathogenicity ; Influenza in Birds/virology ; Influenza, Human/immunology/transmission/*virology ; Mammals ; Models, Biological ; Mutation ; Orthomyxoviridae Infections/transmission/*virology ; Probability ; RNA Replicase/*genetics ; Receptors, Virus/metabolism ; Respiratory System/*virology ; Selection, Genetic ; Sialic Acids/metabolism ; Viral Proteins/*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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  • 5
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    Deletion in cysteine-rich region of LDL receptor impedes transport to cell surface in WHHL rabbit (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-06-06
    Description: The Watanabe heritable hyperlipidemic (WHHL) rabbit, an animal with familial hypercholesterolemia, produces a mutant receptor for plasma low-density lipoprotein (LDL) that is not transported to the cell surface at a normal rate. Cloning and sequencing of complementary DNA's from normal and WHHL rabbits, shows that this defect arises from an in-frame deletion of 12 nucleotides that eliminates four amino acids from the cysteine-rich ligand binding domain of the LDL receptor. A similar mutation, detected by S1 nuclease mapping of LDL receptor messenger RNA, occurred in a patient with familial hypercholesterolemia whose receptor also fails to be transported to the cell surface. These findings suggest that animal cells may have fail-safe mechanisms that prevent the surface expression of improperly folded proteins with unpaired or improperly bonded cysteine residues.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4451858/" 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/PMC4451858/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yamamoto, T -- Bishop, R W -- Brown, M S -- Goldstein, J L -- Russell, D W -- HL 01287/HL/NHLBI NIH HHS/ -- HL 20948/HL/NHLBI NIH HHS/ -- HL 31346/HL/NHLBI NIH HHS/ -- P01 HL020948/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1986 Jun 6;232(4755):1230-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3010466" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Biological Transport ; *Chromosome Deletion ; Cloning, Molecular ; Cysteine/genetics ; Dna ; DNA Restriction Enzymes ; Genes ; Humans ; Hyperlipoproteinemia Type II/*genetics ; Mutation ; RNA, Messenger ; Rabbits ; Receptors, LDL/*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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  • 6
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    Mutation in LDL receptor: Alu-Alu recombination deletes exons encoding transmembrane and cytoplasmic domains (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-01-11
    Description: The molecular size of the plasma LDL (low density lipoprotein) receptor synthesized by cultured fibroblasts from a patient with the internalization-defective form of familial hypercholesterolemia (FH 274) was smaller by 10,000 daltons than the size of the normal LDL receptor. The segment of the gene encoding the truncated portion of the FH 274 receptor was cloned into bacteriophage lambda. Comparison of the nucleotide sequences of the normal and FH 274 genes revealed a 5-kilobase deletion, which eliminated the exons encoding the membrane-spanning region and the carboxyl terminal cytoplasmic domain of the receptor. The deletion appeared to be caused by a novel intrastrand recombination between two repetitive sequences of the Alu family that were oriented in opposite directions. The truncated receptors lack membrane-spanning regions and cytoplasmic domains; they are largely secreted into the culture medium, but a small fraction remains adherent to the cell surface. The surface-adherent receptors bind LDL, but they are unable to cluster in coated pits, thus explaining the internalization-defective phenotype.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4449727/" 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/PMC4449727/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lehrman, M A -- Schneider, W J -- Sudhof, T C -- Brown, M S -- Goldstein, J L -- Russell, D W -- HL 01287/HL/NHLBI NIH HHS/ -- HL 20948/HL/NHLBI NIH HHS/ -- HL 31346/HL/NHLBI NIH HHS/ -- P01 HL020948/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1985 Jan 11;227(4683):140-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3155573" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteriophage lambda ; Base Sequence ; Cell Membrane ; Cloning, Molecular ; Coated Pits, Cell-Membrane/metabolism ; Cytoplasm ; Fibroblasts ; Genes ; Humans ; Hyperlipoproteinemia Type II/*genetics ; Male ; Molecular Weight ; Mutation ; Receptors, LDL/*genetics ; Recombination, Genetic ; *Repetitive Sequences, Nucleic Acid
    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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