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  • Male  (799)
  • *Biological Evolution  (374)
  • Protein Structure, Tertiary  (306)
  • American Association for the Advancement of Science (AAAS)  (1,428)
  • 2005-2009  (1,428)
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  • 1
    Publication Date: 2009-08-15
    Description: Sleep deprivation can impair human health and performance. Habitual total sleep time and homeostatic sleep response to sleep deprivation are quantitative traits in humans. Genetic loci for these traits have been identified in model organisms, but none of these potential animal models have a corresponding human genotype and phenotype. We have identified a mutation in a transcriptional repressor (hDEC2-P385R) that is associated with a human short sleep phenotype. Activity profiles and sleep recordings of transgenic mice carrying this mutation showed increased vigilance time and less sleep time than control mice in a zeitgeber time- and sleep deprivation-dependent manner. These mice represent a model of human sleep homeostasis that provides an opportunity to probe the effect of sleep on human physical and mental health.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2884988/" 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/PMC2884988/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉He, Ying -- Jones, Christopher R -- Fujiki, Nobuhiro -- Xu, Ying -- Guo, Bin -- Holder, Jimmy L Jr -- Rossner, Moritz J -- Nishino, Seiji -- Fu, Ying-Hui -- HL059596/HL/NHLBI NIH HHS/ -- MH074924/MH/NIMH NIH HHS/ -- R01 HL059596/HL/NHLBI NIH HHS/ -- R01 HL059596-09/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2009 Aug 14;325(5942):866-70. doi: 10.1126/science.1174443.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, University of California at San Francisco, Mission Bay, 1550 Fourth Street, San Francisco, CA 94158, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19679812" target="_blank"〉PubMed〈/a〉
    Keywords: Activity Cycles/genetics ; Adolescent ; Adult ; Aged ; Amino Acid Sequence ; Amino Acid Substitution ; Animals ; Animals, Genetically Modified ; Basic Helix-Loop-Helix Transcription Factors/chemistry/*genetics/physiology ; Child ; Circadian Rhythm/genetics ; Drosophila/genetics ; Electroencephalography ; Electromyography ; Female ; Homeostasis ; Humans ; Male ; Mice ; Mice, Knockout ; Mice, Transgenic ; Middle Aged ; Molecular Sequence Data ; Pedigree ; Point Mutation ; Sleep/*genetics/physiology ; Sleep Deprivation ; Sleep, REM/genetics/physiology ; Transcription Factors/chemistry/genetics/physiology ; Wakefulness
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  • 2
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-09-26
    Description: 〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2847887/" 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/PMC2847887/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hedrick, Stephen M -- R01 AI021372/AI/NIAID NIH HHS/ -- R01 AI021372-26/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2009 Sep 25;325(5948):1623-4. doi: 10.1126/science.325_1623a.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, University of California, San Diego, La Jolla, CA 92093-0377, USA. shedrick@ucsd.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19779174" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Immune System/*physiology ; *Immunity ; Immunity, Innate ; Invertebrates/*immunology ; Selection, Genetic ; Vertebrates/*immunology
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  • 3
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-05-09
    Description: Understanding of plant-pathogen coevolution in natural systems continues to develop as new theories at the population and species level are increasingly informed by studies unraveling the molecular basis of interactions between individual plants and their pathogens. The next challenge lies in further integration of these approaches to develop a comprehensive picture of how life history traits of both players interact with the environment to shape evolutionary trajectories.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2689373/" 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/PMC2689373/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Burdon, Jeremy J -- Thrall, Peter H -- R01 GM074265-01A2/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 May 8;324(5928):755-6. doi: 10.1126/science.1171663.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Commonwealth Scientific and Industrial Research Organization (CSIRO)-Plant Industry, Post Office Box 1600, Canberra, ACT 2601, Australia. Jeremy.Burdon@csiro.au〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19423818" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; *Ecosystem ; Fungal Proteins/genetics/metabolism ; Fungi/genetics/*pathogenicity/physiology ; *Host-Pathogen Interactions ; Immunity, Innate ; Plant Diseases/immunology/*microbiology ; Plant Proteins/genetics/metabolism ; Plants/genetics/immunology/metabolism/*microbiology
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  • 4
    Publication Date: 2009-11-07
    Description: Ecological speciation occurs when ecologically based, divergent selection causes the evolution of reproductive isolation. There are many empirical examples of this process; however, there exists a poorly characterized stage during which the traits that distinguish species ecologically and reproductively segregate in a single population. By using a combination of genetic mapping, mate-choice experiments, field observations, and population genetics, we studied a butterfly population with a mimetic wing color polymorphism and found that the butterflies exhibited partial, color-based, assortative mate preference. These traits represent the divergent, ecologically based signal and preference components of sexual isolation that usually distinguish incipient and sibling species. The association between behavior and recognition trait in a single population may enhance the probability of speciation and provides an example of the missing link between an interbreeding population and isolated species.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2875868/" 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/PMC2875868/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chamberlain, Nicola L -- Hill, Ryan I -- Kapan, Durrell D -- Gilbert, Lawrence E -- Kronforst, Marcus R -- GM068763/GM/NIGMS NIH HHS/ -- P50 GM068763/GM/NIGMS NIH HHS/ -- P50 GM068763-06/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Nov 6;326(5954):847-50. doi: 10.1126/science.1179141.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Faculty of Arts and Sciences Center for Systems Biology, Harvard University, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19892982" target="_blank"〉PubMed〈/a〉
    Keywords: Amplified Fragment Length Polymorphism Analysis ; Animals ; Butterflies/anatomy & histology/*genetics/*physiology ; Color ; Ecosystem ; Female ; Genes, Insect ; Genetic Linkage ; *Genetic Speciation ; Linkage Disequilibrium ; Male ; *Mating Preference, Animal ; Molecular Sequence Data ; Phenotype ; *Pigmentation/genetics ; *Polymorphism, Genetic ; Reproduction ; Selection, Genetic ; Wings, Animal/*anatomy & histology
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  • 5
    Publication Date: 2009-07-11
    Description: Children acquire their native language according to a well-defined time frame. Surprisingly, although children raised in bilingual environments have to learn roughly twice as much about language as their monolingual peers, the speed of acquisition is comparable in monolinguals and bilinguals. Here, we show that preverbal 12-month-old bilingual infants have become more flexible at learning speech structures than monolinguals. When given the opportunity to simultaneously learn two different regularities, bilingual infants learned both, whereas monolinguals learned only one of them. Hence, bilinguals may acquire two languages in the time in which monolinguals acquire one because they quickly become more flexible learners.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kovacs, Agnes Melinda -- Mehler, Jacques -- New York, N.Y. -- Science. 2009 Jul 31;325(5940):611-2. doi: 10.1126/science.1173947. Epub 2009 Jul 9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Scuola Internazionale Superiore di Studi Avanzati-SISSA, Via Beirut 4, 34014 Trieste, Italy. agneskovacs@mtapi.hu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19589962" target="_blank"〉PubMed〈/a〉
    Keywords: *Child Language ; Female ; Humans ; Infant ; *Language Development ; *Learning ; Male ; *Multilingualism ; *Speech Perception
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
    Publication Date: 2009-05-09
    Description: Throughout the history of mathematics, concepts of number and space have been tightly intertwined. We tested the hypothesis that cortical circuits for spatial attention contribute to mental arithmetic in humans. We trained a multivariate classifier algorithm to infer the direction of an eye movement, left or right, from the brain activation measured in the posterior parietal cortex. Without further training, the classifier then generalized to an arithmetic task. Its left versus right classification could be used to sort out subtraction versus addition trials, whether performed with symbols or with sets of dots. These findings are consistent with the suggestion that mental arithmetic co-opts parietal circuitry associated with spatial coding.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Knops, Andre -- Thirion, Bertrand -- Hubbard, Edward M -- Michel, Vincent -- Dehaene, Stanislas -- New York, N.Y. -- Science. 2009 Jun 19;324(5934):1583-5. doi: 10.1126/science.1171599. Epub 2009 May 7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉INSERM, Cognitive Neuroimaging Unit, F-91191 Gif-sur-Yvette, France. knops.andre@gmail.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19423779" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Eye Movements/*physiology ; Female ; Humans ; Magnetic Resonance Imaging ; Male ; *Mathematics ; Mental Processes/*physiology ; Parietal Lobe/*physiology ; Recruitment, Neurophysiological
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  • 7
    Publication Date: 2009-02-07
    Description: Platelets play a critical role in the pathogenesis of malarial infections by encouraging the sequestration of infected red blood cells within the cerebral vasculature. But platelets also have well-established roles in innate protection against microbial infections. We found that purified human platelets killed Plasmodium falciparum parasites cultured in red blood cells. Inhibition of platelet function by aspirin and other platelet inhibitors abrogated the lethal effect human platelets exert on P. falciparum parasites. Likewise, platelet-deficient and aspirin-treated mice were more susceptible to death during erythrocytic infection with Plasmodium chabaudi. Both mouse and human platelets bind malarial-infected red cells and kill the parasite within. These results indicate a protective function for platelets in the early stages of erythrocytic infection distinct from their role in cerebral malaria.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McMorran, Brendan J -- Marshall, Vikki M -- de Graaf, Carolyn -- Drysdale, Karen E -- Shabbar, Meriam -- Smyth, Gordon K -- Corbin, Jason E -- Alexander, Warren S -- Foote, Simon J -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Feb 6;323(5915):797-800. doi: 10.1126/science.1166296.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Menzies Research Institute, University of Tasmania, Private Bag 23, Hobart, Tasmania 7000, Australia. brendan.mcmorran@utas.edu.au〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19197068" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Diphosphate/metabolism ; Animals ; Aspirin/pharmacology ; Blood Platelets/metabolism/*physiology ; Erythrocytes/*parasitology ; Female ; Humans ; In Situ Nick-End Labeling ; Malaria/*blood/immunology/*parasitology ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Plasmodium chabaudi/*growth & development ; Plasmodium falciparum/*growth & development ; Platelet Activation ; Platelet Aggregation Inhibitors/pharmacology ; Platelet Count ; Receptors, Purinergic P2/metabolism ; Receptors, Purinergic P2Y1 ; Receptors, Thrombopoietin/genetics
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  • 8
    Publication Date: 2009-12-08
    Description: Simocyclinones are bifunctional antibiotics that inhibit bacterial DNA gyrase by preventing DNA binding to the enzyme. We report the crystal structure of the complex formed between the N-terminal domain of the Escherichia coli gyrase A subunit and simocyclinone D8, revealing two binding pockets that separately accommodate the aminocoumarin and polyketide moieties of the antibiotic. These are close to, but distinct from, the quinolone-binding site, consistent with our observations that several mutations in this region confer resistance to both agents. Biochemical studies show that the individual moieties of simocyclinone D8 are comparatively weak inhibitors of gyrase relative to the parent compound, but their combination generates a more potent inhibitor. Our results should facilitate the design of drug molecules that target these unexploited binding pockets.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Edwards, Marcus J -- Flatman, Ruth H -- Mitchenall, Lesley A -- Stevenson, Clare E M -- Le, Tung B K -- Clarke, Thomas A -- McKay, Adam R -- Fiedler, Hans-Peter -- Buttner, Mark J -- Lawson, David M -- Maxwell, Anthony -- Biotechnology and Biological Sciences Research Council/United Kingdom -- New York, N.Y. -- Science. 2009 Dec 4;326(5958):1415-8. doi: 10.1126/science.1179123.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Chemistry, John Innes Centre, Colney, Norwich NR4 7UH, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965760" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Anti-Bacterial Agents/chemistry/metabolism/pharmacology ; Binding Sites ; Coumarins/chemistry/metabolism/pharmacology ; Crystallography, X-Ray ; DNA Gyrase/*chemistry/genetics/*metabolism ; DNA, Bacterial/metabolism ; Drug Resistance, Bacterial ; Escherichia coli/drug effects/*enzymology/genetics ; Glycosides/chemistry/metabolism/pharmacology ; Ligands ; Models, Molecular ; Molecular Sequence Data ; Molecular Weight ; Mutagenesis, Site-Directed ; Mutation ; Protein Multimerization ; Protein Structure, Tertiary ; Topoisomerase II Inhibitors
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  • 9
    Publication Date: 2009-11-07
    Description: X-linked adrenoleukodystrophy (ALD) is a severe brain demyelinating disease in boys that is caused by a deficiency in ALD protein, an adenosine triphosphate-binding cassette transporter encoded by the ABCD1 gene. ALD progression can be halted by allogeneic hematopoietic cell transplantation (HCT). We initiated a gene therapy trial in two ALD patients for whom there were no matched donors. Autologous CD34+ cells were removed from the patients, genetically corrected ex vivo with a lentiviral vector encoding wild-type ABCD1, and then re-infused into the patients after they had received myeloablative treatment. Over a span of 24 to 30 months of follow-up, we detected polyclonal reconstitution, with 9 to 14% of granulocytes, monocytes, and T and B lymphocytes expressing the ALD protein. These results strongly suggest that hematopoietic stem cells were transduced in the patients. Beginning 14 to 16 months after infusion of the genetically corrected cells, progressive cerebral demyelination in the two patients stopped, a clinical outcome comparable to that achieved by allogeneic HCT. Thus, lentiviral-mediated gene therapy of hematopoietic stem cells can provide clinical benefits in ALD.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cartier, Nathalie -- Hacein-Bey-Abina, Salima -- Bartholomae, Cynthia C -- Veres, Gabor -- Schmidt, Manfred -- Kutschera, Ina -- Vidaud, Michel -- Abel, Ulrich -- Dal-Cortivo, Liliane -- Caccavelli, Laure -- Mahlaoui, Nizar -- Kiermer, Veronique -- Mittelstaedt, Denice -- Bellesme, Celine -- Lahlou, Najiba -- Lefrere, Francois -- Blanche, Stephane -- Audit, Muriel -- Payen, Emmanuel -- Leboulch, Philippe -- l'Homme, Bruno -- Bougneres, Pierre -- Von Kalle, Christof -- Fischer, Alain -- Cavazzana-Calvo, Marina -- Aubourg, Patrick -- New York, N.Y. -- Science. 2009 Nov 6;326(5954):818-23. doi: 10.1126/science.1171242.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉INSERM UMR745, University Paris-Descartes, 75279 Paris, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19892975" target="_blank"〉PubMed〈/a〉
    Keywords: ATP-Binding Cassette Transporters/*genetics ; Adrenoleukodystrophy/genetics/pathology/*therapy ; Animals ; Brain/pathology ; Cell Differentiation ; Cell Lineage ; Child ; Disease Progression ; Fatty Acids/blood ; Female ; Gene Expression ; *Genetic Therapy ; *Genetic Vectors ; HIV-1/*genetics ; Hematopoiesis ; *Hematopoietic Stem Cell Transplantation ; Hematopoietic Stem Cells/*physiology/virology ; Humans ; Leukocytes, Mononuclear/metabolism ; Male ; Mice ; Microglia/cytology/metabolism ; Myeloablative Agonists/therapeutic use ; Transduction, Genetic ; Transplantation Conditioning ; Transplantation, Autologous ; Virus Integration
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  • 10
    Publication Date: 2009-10-17
    Description: Placebo analgesia is a prime example of the impact that psychological factors have on pain perception. We used functional magnetic resonance imaging of the human spinal cord to test the hypothesis that placebo analgesia results in a reduction of nociceptive processing in the spinal cord. In line with behavioral data that show decreased pain responses under placebo, pain-related activity in the spinal cord is strongly reduced under placebo. These results provide direct evidence for spinal inhibition as one mechanism of placebo analgesia and highlight that psychological factors can act on the earliest stages of pain processing in the central nervous system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eippert, Falk -- Finsterbusch, Jurgen -- Bingel, Ulrike -- Buchel, Christian -- New York, N.Y. -- Science. 2009 Oct 16;326(5951):404. doi: 10.1126/science.1180142.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany. f.eippert@uke.uni-hamburg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19833962" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Analgesia/*psychology ; Analgesics/therapeutic use ; Humans ; Lidocaine/therapeutic use ; Magnetic Resonance Imaging ; Male ; Pain/drug therapy/*psychology ; Pain Measurement ; Pain Threshold ; *Placebo Effect ; Placebos/*therapeutic use ; Posterior Horn Cells/physiology ; Spinal Cord/*physiology ; Young Adult
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  • 11
    Publication Date: 2009-05-30
    Description: Transcribing RNA polymerases oscillate between three stable states, two of which, pre- and posttranslocated, were previously subjected to x-ray crystal structure determination. We report here the crystal structure of RNA polymerase II in the third state, the reverse translocated, or "backtracked" state. The defining feature of the backtracked structure is a binding site for the first backtracked nucleotide. This binding site is occupied in case of nucleotide misincorporation in the RNA or damage to the DNA, and is termed the "P" site because it supports proofreading. The predominant mechanism of proofreading is the excision of a dinucleotide in the presence of the elongation factor SII (TFIIS). Structure determination of a cocrystal with TFIIS reveals a rearrangement whereby cleavage of the RNA may take place.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2718261/" 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/PMC2718261/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Dong -- Bushnell, David A -- Huang, Xuhui -- Westover, Kenneth D -- Levitt, Michael -- Kornberg, Roger D -- GM036559/GM/NIGMS NIH HHS/ -- GM041455/GM/NIGMS NIH HHS/ -- GM049985/GM/NIGMS NIH HHS/ -- K99 GM085136/GM/NIGMS NIH HHS/ -- K99 GM085136-01/GM/NIGMS NIH HHS/ -- R00 GM085136/GM/NIGMS NIH HHS/ -- R01 GM036659/GM/NIGMS NIH HHS/ -- R01 GM041455/GM/NIGMS NIH HHS/ -- R01 GM049985/GM/NIGMS NIH HHS/ -- R01 GM049985-16/GM/NIGMS NIH HHS/ -- R37 GM036659/GM/NIGMS NIH HHS/ -- R37 GM036659-22/GM/NIGMS NIH HHS/ -- R37 GM041455/GM/NIGMS NIH HHS/ -- R37 GM041455-20/GM/NIGMS NIH HHS/ -- U54 GM072970/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 May 29;324(5931):1203-6. doi: 10.1126/science.1168729.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19478184" target="_blank"〉PubMed〈/a〉
    Keywords: Base Pair Mismatch ; Crystallography, X-Ray ; Guanosine Monophosphate/chemistry/metabolism ; Models, Molecular ; Nucleic Acid Conformation ; Oligoribonucleotides/chemistry/*metabolism ; Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; RNA/chemistry/*metabolism ; RNA Polymerase II/*chemistry/*metabolism ; Saccharomyces cerevisiae/*enzymology ; *Transcription, Genetic ; Transcriptional Elongation Factors/chemistry/*metabolism
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  • 12
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-09-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, Constance -- New York, N.Y. -- Science. 2009 Sep 4;325(5945):1190-1. doi: 10.1126/science.325_1190b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19729624" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Aptitude Tests ; Child ; *Child, Gifted ; *Cognition ; Female ; Humans ; Male ; Sex Characteristics ; *Space Perception
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  • 13
    Publication Date: 2009-03-17
    Description: Once all chromosomes are connected to the mitotic spindle (bioriented), anaphase is initiated by the protein ubiquitylation activity of the anaphase-promoting complex/cyclosome (APC/C) and its coactivator Cdc20 (APC/C(Cdc20)). Before chromosome biorientation, anaphase is delayed by a mitotic checkpoint complex (MCC) that inhibits APC/C(Cdc20). We used single-particle electron microscopy to obtain three-dimensional models of human APC/C in various functional states: bound to MCC, to Cdc20, or to neither (apo-APC/C). These experiments revealed that MCC associates with the Cdc20 binding site on APC/C, locks the otherwise flexible APC/C in a "closed" state, and prevents binding and ubiquitylation of a wide range of different APC/C substrates. These observations clarify the structural basis for the inhibition of APC/C by spindle checkpoint proteins.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2989460/" 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/PMC2989460/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Herzog, Franz -- Primorac, Ivana -- Dube, Prakash -- Lenart, Peter -- Sander, Bjorn -- Mechtler, Karl -- Stark, Holger -- Peters, Jan-Michael -- F 3407/Austrian Science Fund FWF/Austria -- New York, N.Y. -- Science. 2009 Mar 13;323(5920):1477-81. doi: 10.1126/science.1163300.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Research Institute of Molecular Pathology, Dr. Bohr-Gasse 7, 1030 Vienna, Austria.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19286556" target="_blank"〉PubMed〈/a〉
    Keywords: Anaphase ; Anaphase-Promoting Complex-Cyclosome ; Cdc20 Proteins ; Cell Cycle Proteins/chemistry/metabolism ; HeLa Cells ; Humans ; Image Processing, Computer-Assisted ; Imaging, Three-Dimensional ; Microscopy, Electron ; *Mitosis ; Models, Molecular ; Protein Binding ; Protein Conformation ; Protein Structure, Tertiary ; Spindle Apparatus/*metabolism ; Ubiquitin-Conjugating Enzymes/chemistry/metabolism ; Ubiquitin-Protein Ligase Complexes/*chemistry/*metabolism ; Ubiquitination
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  • 14
    Publication Date: 2009-05-09
    Description: Despite tremendous progress in understanding the nature of the immune system, the full diversity of an organism's antibody repertoire is unknown. We used high-throughput sequencing of the variable domain of the antibody heavy chain from 14 zebrafish to analyze VDJ usage and antibody sequence. Zebrafish were found to use between 50 and 86% of all possible VDJ combinations and shared a similar frequency distribution, with some correlation of VDJ patterns between individuals. Zebrafish antibodies retained a few thousand unique heavy chains that also exhibited a shared frequency distribution. We found evidence of convergence, in which different individuals made the same antibody. This approach provides insight into the breadth of the expressed antibody repertoire and immunological diversity at the level of an individual organism.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3086368/" 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/PMC3086368/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weinstein, Joshua A -- Jiang, Ning -- White, Richard A 3rd -- Fisher, Daniel S -- Quake, Stephen R -- DP1 OD000251/OD/NIH HHS/ -- DP1 OD000251-04/OD/NIH HHS/ -- DP1 OD000251-05/OD/NIH HHS/ -- DP1 OD000251-06/OD/NIH HHS/ -- New York, N.Y. -- Science. 2009 May 8;324(5928):807-10. doi: 10.1126/science.1170020.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biophysics Program, Stanford University, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19423829" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies/genetics ; Antibody Diversity ; Base Sequence ; Complementarity Determining Regions/*genetics ; Computational Biology ; Female ; Gene Library ; *Genes, Immunoglobulin Heavy Chain ; Immunoglobulin Heavy Chains/*genetics ; Immunoglobulin Joining Region/genetics ; Immunoglobulin M/*genetics ; Male ; Molecular Sequence Data ; Recombination, Genetic ; Sequence Analysis, DNA ; VDJ Exons ; Zebrafish/genetics/*immunology
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  • 15
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-03-03
    Description: In two experiments, children and adults rated pairs of faces from election races. Naive adults judged a pair on competence; after playing a game, children chose who they would prefer to be captain of their boat. Children's (as well as adults') preferences accurately predicted actual election outcomes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Antonakis, John -- Dalgas, Olaf -- New York, N.Y. -- Science. 2009 Feb 27;323(5918):1183. doi: 10.1126/science.1167748.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Faculty of Business and Economics, University of Lausanne, 1015 Lausanne, Switzerland. john.antonakis@unil.ch〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19251621" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Aged ; Child ; Child, Preschool ; *Choice Behavior ; *Face ; Female ; Forecasting ; Games, Experimental ; Humans ; Male ; Middle Aged ; Physiognomy ; *Politics ; Probability ; Regression Analysis ; Young Adult
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  • 16
    Publication Date: 2009-12-19
    Description: Compared with more explicit racial slurs and statements, biased facial expressions and body language may resist conscious identification and thus produce a hidden social influence. In four studies, we show that race biases can be subtly transmitted via televised nonverbal behavior. Characters on 11 popular television shows exhibited more negative nonverbal behavior toward black than toward status-matched white characters. Critically, exposure to prowhite (versus problack) nonverbal bias increased viewers' bias even though patterns of nonverbal behavior could not be consciously reported. These findings suggest that hidden patterns of televised nonverbal behavior influence bias among viewers.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3764987/" 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/PMC3764987/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weisbuch, Max -- Pauker, Kristin -- Ambady, Nalini -- F32 MH078350/MH/NIMH NIH HHS/ -- F32MH078350/MH/NIMH NIH HHS/ -- R01 MH070833/MH/NIMH NIH HHS/ -- R01 MH070833-02/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2009 Dec 18;326(5960):1711-4. doi: 10.1126/science.1178358.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychology, Tufts University, 490 Boston Avenue, Medford, MA 02155, USA. max.weisbuch@tufts.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20019288" target="_blank"〉PubMed〈/a〉
    Keywords: *African Continental Ancestry Group ; Cues ; *European Continental Ancestry Group ; Facial Expression ; Female ; Humans ; Kinesics ; Male ; *Nonverbal Communication ; *Prejudice ; *Television ; United States
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  • 17
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-04-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2009 Apr 10;324(5924):162-3. doi: 10.1126/science.324.5924.162a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19359553" target="_blank"〉PubMed〈/a〉
    Keywords: Asthma/etiology/genetics/immunology ; *Biological Evolution ; *Curriculum ; Disease Susceptibility ; Drug Resistance ; *Education, Medical ; Endemic Diseases ; Humans ; Immunity, Innate ; Immunoglobulin E/immunology ; Malaria/epidemiology/immunology ; Schistosomiasis/epidemiology/immunology
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  • 18
    Publication Date: 2009-06-13
    Description: Rotavirus outer-layer protein VP7 is a principal target of protective antibodies. Removal of free calcium ions (Ca2+) dissociates VP7 trimers into monomers, releasing VP7 from the virion, and initiates penetration-inducing conformational changes in the other outer-layer protein, VP4. We report the crystal structure at 3.4 angstrom resolution of VP7 bound with the Fab fragment of a neutralizing monoclonal antibody. The Fab binds across the outer surface of the intersubunit contact, which contains two Ca2+ sites. Mutations that escape neutralization by other antibodies suggest that the same region bears the epitopes of most neutralizing antibodies. The monovalent Fab is sufficient to neutralize infectivity. We propose that neutralizing antibodies against VP7 act by stabilizing the trimer, thereby inhibiting the uncoating trigger for VP4 rearrangement. A disulfide-linked trimer is a potential subunit immunogen.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2995306/" 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/PMC2995306/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Aoki, Scott T -- Settembre, Ethan C -- Trask, Shane D -- Greenberg, Harry B -- Harrison, Stephen C -- Dormitzer, Philip R -- AI-21362/AI/NIAID NIH HHS/ -- CA-13202/CA/NCI NIH HHS/ -- DK-56339/DK/NIDDK NIH HHS/ -- R37 CA013202/CA/NCI NIH HHS/ -- R37 CA013202-38/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Jun 12;324(5933):1444-7. doi: 10.1126/science.1170481.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Medicine, Children's Hospital, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19520960" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antibodies, Monoclonal/chemistry/immunology/metabolism ; Antibodies, Viral/chemistry/*immunology/metabolism ; Antigens, Viral/*chemistry/genetics/*immunology/metabolism ; Binding Sites ; Binding Sites, Antibody ; Calcium/metabolism ; Capsid Proteins/*chemistry/genetics/*immunology/metabolism ; Crystallography, X-Ray ; Epitopes/immunology ; Immunoglobulin Fab Fragments/chemistry/*immunology/metabolism ; Models, Molecular ; Molecular Sequence Data ; Mutation ; Neutralization Tests ; Protein Folding ; Protein Multimerization ; Protein Structure, Tertiary ; Protein Subunits ; Recombinant Proteins/chemistry ; Rotavirus/*chemistry/immunology ; Serotyping
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  • 19
    Publication Date: 2009-03-28
    Description: P-glycoprotein (P-gp) detoxifies cells by exporting hundreds of chemically unrelated toxins but has been implicated in multidrug resistance (MDR) in the treatment of cancers. Substrate promiscuity is a hallmark of P-gp activity, thus a structural description of poly-specific drug-binding is important for the rational design of anticancer drugs and MDR inhibitors. The x-ray structure of apo P-gp at 3.8 angstroms reveals an internal cavity of approximately 6000 angstroms cubed with a 30 angstrom separation of the two nucleotide-binding domains. Two additional P-gp structures with cyclic peptide inhibitors demonstrate distinct drug-binding sites in the internal cavity capable of stereoselectivity that is based on hydrophobic and aromatic interactions. Apo and drug-bound P-gp structures have portals open to the cytoplasm and the inner leaflet of the lipid bilayer for drug entry. The inward-facing conformation represents an initial stage of the transport cycle that is competent for drug binding.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2720052/" 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/PMC2720052/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Aller, Stephen G -- Yu, Jodie -- Ward, Andrew -- Weng, Yue -- Chittaboina, Srinivas -- Zhuo, Rupeng -- Harrell, Patina M -- Trinh, Yenphuong T -- Zhang, Qinghai -- Urbatsch, Ina L -- Chang, Geoffrey -- F32 GM078914/GM/NIGMS NIH HHS/ -- F32 GM078914-03/GM/NIGMS NIH HHS/ -- GM073197/GM/NIGMS NIH HHS/ -- GM078914/GM/NIGMS NIH HHS/ -- GM61905/GM/NIGMS NIH HHS/ -- P50 GM073197/GM/NIGMS NIH HHS/ -- P50 GM073197-050002/GM/NIGMS NIH HHS/ -- R01 GM061905/GM/NIGMS NIH HHS/ -- R01 GM061905-09/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Mar 27;323(5922):1718-22. doi: 10.1126/science.1168750.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Scripps Research Institute, 10550 North Torrey Pines Road, CB105, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19325113" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Amino Acid Sequence ; Animals ; Apoproteins/chemistry/metabolism ; Binding Sites ; Cell Membrane/chemistry ; Crystallography, X-Ray ; Hydrophobic and Hydrophilic Interactions ; Lipid Bilayers/chemistry ; Mice ; Models, Molecular ; Molecular Sequence Data ; P-Glycoprotein/antagonists & inhibitors/*chemistry/*metabolism ; Peptides, Cyclic/*chemistry/*metabolism ; Protein Binding ; Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Stereoisomerism ; Verapamil/metabolism/pharmacology
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  • 20
    Publication Date: 2009-06-27
    Description: Pleuropulmonary blastoma (PPB) is a rare pediatric lung tumor that is often part of an inherited cancer syndrome. PPBs consist of mesenchymal cells that are susceptible to malignant transformation and cysts lined by epithelial cells. In a subset of patients, overgrowth of the cysts by mesenchymal cells leads to sarcoma formation. Here, we show that 11 multiplex PPB families harbor heterozygous germline mutations in DICER1, a gene encoding an endoribonuclease critical to the generation of small noncoding regulatory RNAs. Expression of DICER1 protein was undetectable in the epithelial component of PPB tumors but was retained in the malignant mesenchyme (sarcoma). We hypothesize that loss of DICER1 in the epithelium of the developing lung alters the regulation of diffusible factors that promote mesenchymal proliferation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3098036/" 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/PMC3098036/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hill, D Ashley -- Ivanovich, Jennifer -- Priest, John R -- Gurnett, Christina A -- Dehner, Louis P -- Desruisseau, David -- Jarzembowski, Jason A -- Wikenheiser-Brokamp, Kathryn A -- Suarez, Brian K -- Whelan, Alison J -- Williams, Gretchen -- Bracamontes, Dawn -- Messinger, Yoav -- Goodfellow, Paul J -- P30 CA091842/CA/NCI NIH HHS/ -- P30 CA091842-07/CA/NCI NIH HHS/ -- P30 CA091842-08/CA/NCI NIH HHS/ -- R01 CA143167/CA/NCI NIH HHS/ -- R01 HL109265/HL/NHLBI NIH HHS/ -- UL1 RR024992/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2009 Aug 21;325(5943):965. doi: 10.1126/science.1174334. Epub 2009 Jun 25.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Washington University Medical Center, St. Louis, MO 63110, USA. dashill@cnmc.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19556464" target="_blank"〉PubMed〈/a〉
    Keywords: DEAD-box RNA Helicases/chemistry/*genetics ; Epithelium/metabolism ; Female ; Genetic Predisposition to Disease ; *Germ-Line Mutation ; Heterozygote ; Humans ; Lung Neoplasms/enzymology/*genetics/pathology ; Male ; Pedigree ; Pulmonary Blastoma/enzymology/*genetics/pathology ; Ribonuclease III/chemistry/*genetics
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  • 21
    Publication Date: 2009-02-07
    Description: Existing research reports inconsistent findings with regard to the effect of color on cognitive task performances. Some research suggests that blue or green leads to better performances than red; other studies record the opposite. Current work reconciles this discrepancy. We demonstrate that red (versus blue) color induces primarily an avoidance (versus approach) motivation (study 1, n = 69) and that red enhances performance on a detail-oriented task, whereas blue enhances performance on a creative task (studies 2 and 3, n = 208 and 118). Further, we replicate these results in the domains of product design (study 4, n = 42) and persuasive message evaluation (study 5, n = 161) and show that these effects occur outside of individuals' consciousness (study 6, n = 68). We also provide process evidence suggesting that the activation of alternative motivations mediates the effect of color on cognitive task performances.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mehta, Ravi -- Zhu, Rui Juliet -- New York, N.Y. -- Science. 2009 Feb 27;323(5918):1226-9. doi: 10.1126/science.1169144. Epub 2009 Feb 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Sauder School of Business, University of British Columbia, 2053 Main Mall, Vancouver, BC V6T 1Z2, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19197022" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; *Cognition ; *Color ; Creativity ; Female ; Humans ; Male ; *Mental Processes ; Mental Recall ; Motivation ; *Task Performance and Analysis ; Young Adult
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  • 22
    Publication Date: 2009-11-07
    Description: Sexual conflict occurs when males and females act against each others' interest, typically resulting in selection favoring harmful males. We performed laboratory experiments on sexual conflict that both confined individuals in isolated groups, which prevents selection acting counter to this conflict, and provided more naturalistic multigroup population structures. We show that in water striders, aggressive male mating behavior was strongly favored within groups but not favored in a multigroup population when individuals can freely disperse among groups. These observations explain the persistence of less-aggressive males within natural populations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eldakar, Omar Tonsi -- Dlugos, Michael J -- Pepper, John W -- Wilson, David Sloan -- 5 K12 GM000708/GM/NIGMS NIH HHS/ -- K12 GM000708/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Nov 6;326(5954):816. doi: 10.1126/science.1180183.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Insect Science, University of Arizona, Tucson, AZ 85721, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19892974" target="_blank"〉PubMed〈/a〉
    Keywords: Aggression ; Animals ; Female ; Heteroptera/*physiology ; Male ; Mating Preference, Animal ; Population Dynamics ; *Sexual Behavior, Animal
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  • 23
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-12-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2009 Dec 18;326(5960):1612. doi: 10.1126/science.326.5960.1612.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20019263" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; Animals ; *Biological Evolution ; DNA-Binding Proteins/genetics/physiology ; Drosophila Proteins/genetics/physiology ; Drosophila melanogaster/*genetics/growth & development/physiology ; *Enhancer Elements, Genetic ; *Gene Expression Regulation, Developmental ; Mutation ; Paired Box Transcription Factors/genetics ; Pigmentation/genetics ; Regulatory Sequences, Nucleic Acid ; Smegmamorpha/anatomy & histology/*genetics/growth & development
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  • 24
    Publication Date: 2009-01-10
    Description: The familiar buzz of flying mosquitoes is an important mating signal, with the fundamental frequency of the female's flight tone signaling her presence. In the yellow fever and dengue vector Aedes aegypti, both sexes interact acoustically by shifting their flight tones to match, resulting in a courtship duet. Matching is made not at the fundamental frequency of 400 hertz (female) or 600 hertz (male) but at a shared harmonic of 1200 hertz, which exceeds the previously known upper limit of hearing in mosquitoes. Physiological recordings from Johnston's organ (the mosquito's "ear") reveal sensitivity up to 2000 hertz, consistent with our observed courtship behavior. These findings revise widely accepted limits of acoustic behavior in mosquitoes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2847473/" 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/PMC2847473/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cator, Lauren J -- Arthur, Ben J -- Harrington, Laura C -- Hoy, Ronald R -- R01 DC000103/DC/NIDCD NIH HHS/ -- R01 DC000103-34/DC/NIDCD NIH HHS/ -- New York, N.Y. -- Science. 2009 Feb 20;323(5917):1077-9. doi: 10.1126/science.1166541. Epub 2009 Jan 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Entomology, Cornell University, Ithaca, NY 14853, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19131593" target="_blank"〉PubMed〈/a〉
    Keywords: Aedes/*physiology ; *Animal Communication ; Animals ; Auditory Perception ; Dengue/transmission ; Evoked Potentials ; Female ; Flight, Animal ; Hearing ; Insect Vectors/*physiology ; Male ; Pitch Perception ; Sense Organs/physiology ; *Sexual Behavior, Animal ; Wings, Animal/physiology
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  • 25
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-03-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, Constance -- New York, N.Y. -- Science. 2009 Mar 27;323(5922):1658. doi: 10.1126/science.323.5922.1658a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19325088" target="_blank"〉PubMed〈/a〉
    Keywords: Brain/*physiology ; Brain Mapping ; *Cognition ; *Genes ; Humans ; Magnetic Resonance Imaging ; Male ; *Memory, Short-Term ; Siblings ; *Thinking ; Twin Studies as Topic ; *Twins, Monozygotic
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  • 26
    Publication Date: 2009-04-18
    Description: Genes are not simply turned on or off, but instead their expression is fine-tuned to meet the needs of a cell. How genes are modulated so precisely is not well understood. The glucocorticoid receptor (GR) regulates target genes by associating with specific DNA binding sites, the sequences of which differ between genes. Traditionally, these binding sites have been viewed only as docking sites. Using structural, biochemical, and cell-based assays, we show that GR binding sequences, differing by as little as a single base pair, differentially affect GR conformation and regulatory activity. We therefore propose that DNA is a sequence-specific allosteric ligand of GR that tailors the activity of the receptor toward specific target genes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2777810/" 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/PMC2777810/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Meijsing, Sebastiaan H -- Pufall, Miles A -- So, Alex Y -- Bates, Darren L -- Chen, Lin -- Yamamoto, Keith R -- GM08537/GM/NIGMS NIH HHS/ -- R01 CA020535/CA/NCI NIH HHS/ -- R01 CA020535-31/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2009 Apr 17;324(5925):407-10. doi: 10.1126/science.1164265.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cellular and Molecular Pharmacology, University of California, San Francisco, CA 94158, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19372434" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Binding Sites ; Cell Line, Tumor ; Crystallography, X-Ray ; DNA/*chemistry/*metabolism ; Humans ; Ligands ; Models, Molecular ; Mutation ; Protein Conformation ; Protein Isoforms/chemistry/metabolism ; Protein Multimerization ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Rats ; Receptors, Glucocorticoid/chemistry/genetics/*metabolism ; Transcriptional Activation
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  • 27
    Publication Date: 2009-05-02
    Description: Schizophrenia is a devastating, highly heritable brain disorder of unknown etiology. Recently, the first common genetic variant associated on a genome-wide level with schizophrenia and possibly bipolar disorder was discovered in ZNF804A (rs1344706). We show, by using an imaging genetics approach, that healthy carriers of rs1344706 risk genotypes exhibit no changes in regional activity but pronounced gene dosage-dependent alterations in functional coupling (correlated activity) of dorsolateral prefrontal cortex (DLPFC) across hemispheres and with hippocampus, mirroring findings in patients, and abnormal coupling of amygdala. Our findings establish disturbed connectivity as a neurogenetic risk mechanism for psychosis supported by genome-wide association, show that rs1344706 or variation in linkage disequilibrium is functional in human brain, and validate the intermediate phenotype strategy in psychiatry.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Esslinger, Christine -- Walter, Henrik -- Kirsch, Peter -- Erk, Susanne -- Schnell, Knut -- Arnold, Claudia -- Haddad, Leila -- Mier, Daniela -- Opitz von Boberfeld, Carola -- Raab, Kyeon -- Witt, Stephanie H -- Rietschel, Marcella -- Cichon, Sven -- Meyer-Lindenberg, Andreas -- New York, N.Y. -- Science. 2009 May 1;324(5927):605. doi: 10.1126/science.1167768.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, University of Heidelberg, J5, 68159 Mannheim, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19407193" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Affective Symptoms/genetics/physiopathology ; Bipolar Disorder/genetics/physiopathology ; Brain Mapping ; Female ; Genetic Predisposition to Disease ; Genome-Wide Association Study ; Genotype ; Hippocampus/*physiology ; Humans ; Kruppel-Like Transcription Factors/*genetics ; Magnetic Resonance Imaging ; Male ; Mental Processes ; Phenotype ; *Polymorphism, Single Nucleotide ; Prefrontal Cortex/*physiology ; Schizophrenia/*genetics/physiopathology
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  • 28
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-03-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, Constance -- New York, N.Y. -- Science. 2009 Feb 27;323(5918):1166. doi: 10.1126/science.323.5918.1166.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19251607" target="_blank"〉PubMed〈/a〉
    Keywords: China ; Crime ; Female ; Humans ; Male ; *Marriage ; *Sex Ratio ; *Social Problems
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  • 29
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-09-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2009 Sep 11;325(5946):1332. doi: 10.1126/science.325_1332.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19745128" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; Biology/*history ; History, 20th Century ; History, 21st Century ; United States
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  • 30
    Publication Date: 2009-05-16
    Description: Sequence preferences of DNA binding proteins are a primary mechanism by which cells interpret the genome. Despite the central importance of these proteins in physiology, development, and evolution, comprehensive DNA binding specificities have been determined experimentally for only a few proteins. Here, we used microarrays containing all 10-base pair sequences to examine the binding specificities of 104 distinct mouse DNA binding proteins representing 22 structural classes. Our results reveal a complex landscape of binding, with virtually every protein analyzed possessing unique preferences. Roughly half of the proteins each recognized multiple distinctly different sequence motifs, challenging our molecular understanding of how proteins interact with their DNA binding sites. This complexity in DNA recognition may be important in gene regulation and in the evolution of transcriptional regulatory networks.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2905877/" 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/PMC2905877/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Badis, Gwenael -- Berger, Michael F -- Philippakis, Anthony A -- Talukder, Shaheynoor -- Gehrke, Andrew R -- Jaeger, Savina A -- Chan, Esther T -- Metzler, Genita -- Vedenko, Anastasia -- Chen, Xiaoyu -- Kuznetsov, Hanna -- Wang, Chi-Fong -- Coburn, David -- Newburger, Daniel E -- Morris, Quaid -- Hughes, Timothy R -- Bulyk, Martha L -- R01 HG003985/HG/NHGRI NIH HHS/ -- R01 HG003985-01/HG/NHGRI NIH HHS/ -- R01 HG003985-02/HG/NHGRI NIH HHS/ -- R01 HG003985-03/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2009 Jun 26;324(5935):1720-3. doi: 10.1126/science.1162327. Epub 2009 May 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Banting and Best Department of Medical Research, University of Toronto, Toronto, ON M5S 3E1, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19443739" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Amino Acid Sequence ; Animals ; Base Sequence ; Binding Sites ; DNA/chemistry/*metabolism ; Electrophoretic Mobility Shift Assay ; Gene Expression Regulation ; Gene Regulatory Networks ; Humans ; Mice ; Protein Array Analysis ; Protein Binding ; Protein Structure, Tertiary ; Recombinant Fusion Proteins/chemistry/metabolism ; Transcription Factors/*chemistry/*metabolism
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  • 31
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-09-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2009 Sep 4;325(5945):1196-9. doi: 10.1126/science.325_1196.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19729633" target="_blank"〉PubMed〈/a〉
    Keywords: Altruism ; Animals ; Bacteriophages/physiology ; *Biological Evolution ; Competitive Behavior ; *Cooperative Behavior ; Dictyostelium/physiology ; Family ; Game Theory ; Games, Experimental ; Humans ; Mutation ; Pseudomonas aeruginosa/physiology ; Punishment ; Quorum Sensing ; Reward ; Selection, Genetic ; *Social Behavior ; Warfare
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  • 32
    Publication Date: 2009-10-08
    Description: Hominid fossils predating the emergence of Australopithecus have been sparse and fragmentary. The evolution of our lineage after the last common ancestor we shared with chimpanzees has therefore remained unclear. Ardipithecus ramidus, recovered in ecologically and temporally resolved contexts in Ethiopia's Afar Rift, now illuminates earlier hominid paleobiology and aspects of extant African ape evolution. More than 110 specimens recovered from 4.4-million-year-old sediments include a partial skeleton with much of the skull, hands, feet, limbs, and pelvis. This hominid combined arboreal palmigrade clambering and careful climbing with a form of terrestrial bipedality more primitive than that of Australopithecus. Ar. ramidus had a reduced canine/premolar complex and a little-derived cranial morphology and consumed a predominantly C3 plant-based diet (plants using the C3 photosynthetic pathway). Its ecological habitat appears to have been largely woodland-focused. Ar. ramidus lacks any characters typical of suspension, vertical climbing, or knuckle-walking. Ar. ramidus indicates that despite the genetic similarities of living humans and chimpanzees, the ancestor we last shared probably differed substantially from any extant African ape. Hominids and extant African apes have each become highly specialized through very different evolutionary pathways. This evidence also illuminates the origins of orthogrady, bipedality, ecology, diet, and social behavior in earliest Hominidae and helps to define the basal hominid adaptation, thereby accentuating the derived nature of Australopithecus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉White, Tim D -- Asfaw, Berhane -- Beyene, Yonas -- Haile-Selassie, Yohannes -- Lovejoy, C Owen -- Suwa, Gen -- WoldeGabriel, Giday -- New York, N.Y. -- Science. 2009 Oct 2;326(5949):75-86.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Human Evolution Research Center and Department of Integrative Biology, 3101 Valley Life Sciences Building, University of California, Berkeley, CA 94720, USA. timwhite@berkeley.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19810190" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Bone and Bones/anatomy & histology ; Dentition ; Diet ; Ecosystem ; Environment ; Ethiopia ; *Fossils ; Geologic Sediments ; Geological Phenomena ; *Hominidae/anatomy & histology/classification/genetics/physiology ; Humans ; Locomotion ; Paleodontology ; Pan troglodytes/genetics ; Phylogeny ; Skeleton ; Skull/anatomy & histology ; Social Behavior ; Tooth/anatomy & histology
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  • 33
    Publication Date: 2009-11-26
    Description: Hybrid sterility of the heterogametic sex is one of the first postzygotic reproductive barriers to evolve during speciation, yet the molecular basis of hybrid sterility is poorly understood. We show that the hybrid male sterility gene Odysseus-site homeobox (OdsH) encodes a protein that localizes to evolutionarily dynamic loci within heterochromatin and leads to their decondensation. In Drosophila mauritiana x Drosophila simulans male hybrids, OdsH from D. mauritiana (OdsHmau) acts as a sterilizing factor by associating with the heterochromatic Y chromosome of D. simulans, whereas D. simulans OdsH (OdsHsim) does not. Characterization of sterile hybrid testes revealed that OdsH abundance and localization in the premeiotic phases of spermatogenesis differ between species. These results reveal that rapid heterochromatin evolution affects the onset of hybrid sterility.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2987944/" 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/PMC2987944/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bayes, Joshua J -- Malik, Harmit S -- R01 GM074108/GM/NIGMS NIH HHS/ -- R01 GM074108-05/GM/NIGMS NIH HHS/ -- R01-GM74108/GM/NIGMS NIH HHS/ -- T32 GM07270/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Dec 11;326(5959):1538-41. doi: 10.1126/science.1181756. Epub .〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98185, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19933102" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Genetically Modified ; Chromosomes/metabolism/physiology ; Crosses, Genetic ; DNA, Satellite/*metabolism ; Drosophila/genetics/*physiology ; Drosophila Proteins/genetics/*metabolism ; Female ; Fertility ; G2 Phase ; Genetic Speciation ; Heterochromatin/*metabolism ; Homeodomain Proteins/genetics/*metabolism ; Hybridization, Genetic ; Male ; Meiosis ; Recombinant Fusion Proteins/metabolism ; Spermatocytes/cytology/metabolism ; Spermatogenesis ; Testis/metabolism ; X Chromosome/metabolism ; Y Chromosome/*metabolism/physiology
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  • 34
    Publication Date: 2009-03-17
    Description: The YODA (YDA) mitogen-activated protein kinase pathway promotes elongation of the Arabidopsis zygote and development of its basal daughter cell into the extra-embryonic suspensor. Here, we show that the interleukin-1 receptor-associated kinase (IRAK)/Pelle-like kinase gene SHORT SUSPENSOR (SSP) regulates this pathway through a previously unknown parent-of-origin effect. SSP transcripts are produced in mature pollen but do not appear to be translated. Instead, they are delivered via the sperm cells to the zygote and the endosperm, where SSP protein transiently accumulates. Ectopic expression of SSP protein in the leaf epidermis is sufficient to activate YDA-dependent signaling. We propose that SSP protein produced from paternal transcripts upon fertilization triggers zygotic YDA activity, providing an essential temporal cue for the regulation of the asymmetric first division.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bayer, Martin -- Nawy, Tal -- Giglione, Carmela -- Galli, Mary -- Meinnel, Thierry -- Lukowitz, Wolfgang -- New York, N.Y. -- Science. 2009 Mar 13;323(5920):1485-8. doi: 10.1126/science.1167784.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19286558" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Arabidopsis/*embryology/*genetics/metabolism ; Arabidopsis Proteins/*metabolism ; Biocatalysis ; Catalytic Domain ; Cell Division ; Crosses, Genetic ; *Gene Expression Regulation, Plant ; Genomic Imprinting ; Interleukin-1 Receptor-Associated Kinases/chemistry/*genetics/*metabolism ; MAP Kinase Kinase Kinases/*metabolism ; MAP Kinase Signaling System ; Mutation ; Plants, Genetically Modified ; Pollen/metabolism ; Protein Binding ; Protein Structure, Tertiary ; RNA, Messenger/genetics/metabolism ; Recombinant Fusion Proteins ; Seeds/growth & development/metabolism ; Transcription, Genetic
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  • 35
    Publication Date: 2009-04-04
    Description: Mitochondria continuously undergo two opposing processes, fission and fusion. The disruption of this dynamic equilibrium may herald cell injury or death and may contribute to developmental and neurodegenerative disorders. Nitric oxide functions as a signaling molecule, but in excess it mediates neuronal injury, in part via mitochondrial fission or fragmentation. However, the underlying mechanism for nitric oxide-induced pathological fission remains unclear. We found that nitric oxide produced in response to beta-amyloid protein, thought to be a key mediator of Alzheimer's disease, triggered mitochondrial fission, synaptic loss, and neuronal damage, in part via S-nitrosylation of dynamin-related protein 1 (forming SNO-Drp1). Preventing nitrosylation of Drp1 by cysteine mutation abrogated these neurotoxic events. SNO-Drp1 is increased in brains of human Alzheimer's disease patients and may thus contribute to the pathogenesis of neurodegeneration.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2823371/" 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/PMC2823371/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cho, Dong-Hyung -- Nakamura, Tomohiro -- Fang, Jianguo -- Cieplak, Piotr -- Godzik, Adam -- Gu, Zezong -- Lipton, Stuart A -- P01 ES016738/ES/NIEHS NIH HHS/ -- P01 ES016738-01/ES/NIEHS NIH HHS/ -- P01 ES016738-010003/ES/NIEHS NIH HHS/ -- P01 ES016738-02/ES/NIEHS NIH HHS/ -- P01 ES016738-020003/ES/NIEHS NIH HHS/ -- P01 HD029587/HD/NICHD NIH HHS/ -- P01 HD029587-16/HD/NICHD NIH HHS/ -- P01 HD29587/HD/NICHD NIH HHS/ -- P30 NS057096/NS/NINDS NIH HHS/ -- P30 NS057096-04/NS/NINDS NIH HHS/ -- R01 EY005477/EY/NEI NIH HHS/ -- R01 EY005477-25/EY/NEI NIH HHS/ -- R01 EY05477/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 2009 Apr 3;324(5923):102-5. doi: 10.1126/science.1171091.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Neuroscience, Aging, and Stem Cell Research, Burnham Institute for Medical Research, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19342591" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/metabolism/pathology ; Amino Acid Motifs ; Amyloid beta-Peptides/*metabolism/pharmacology ; Animals ; Cell Line ; Cell Line, Tumor ; Cerebral Cortex/cytology ; Cysteine/analogs & derivatives/genetics/metabolism/pharmacology ; Female ; GTP Phosphohydrolases/chemistry/*metabolism ; Humans ; Male ; Mice ; Mice, Transgenic ; Microtubule-Associated Proteins/chemistry/*metabolism ; Mitochondria/drug effects/physiology/*ultrastructure ; Mitochondrial Proteins/chemistry/*metabolism ; Models, Molecular ; Mutation ; Neurons/drug effects/*ultrastructure ; Nitric Oxide/*metabolism ; Peptide Fragments/metabolism/pharmacology ; Protein Multimerization ; Protein Structure, Tertiary ; S-Nitrosothiols/pharmacology
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  • 36
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-08-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, Greg -- New York, N.Y. -- Science. 2009 Aug 7;325(5941):670-2. doi: 10.1126/science.325_670.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19661398" target="_blank"〉PubMed〈/a〉
    Keywords: Athletic Injuries/etiology/metabolism/*pathology ; Brain/*pathology ; Brain Chemistry ; Brain Concussion ; Brain Injury, Chronic/etiology/metabolism/*pathology ; Football/*injuries ; Humans ; Male ; Post-Concussion Syndrome/etiology/metabolism/pathology ; Risk Factors ; Tauopathies/etiology/metabolism/pathology ; Time Factors ; tau Proteins/analysis
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  • 37
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-07-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, Greg -- New York, N.Y. -- Science. 2009 Jul 3;325(5936):24-6. doi: 10.1126/science.325_24.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19574364" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; *Biological Evolution ; Central Nervous System/anatomy & histology/physiology ; Cnidaria/cytology/genetics/physiology ; Ctenophora/cytology/physiology ; Ion Channels/physiology ; Nerve Net/anatomy & histology/physiology ; Nervous System/*anatomy & histology ; *Nervous System Physiological Phenomena ; Neurons/*cytology/*physiology ; Phylogeny ; Porifera/cytology/genetics/physiology ; Synapses/physiology
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  • 38
    Publication Date: 2009-09-26
    Description: To explore the mechanisms and evolution of cell-cycle control, we analyzed the position and conservation of large numbers of phosphorylation sites for the cyclin-dependent kinase Cdk1 in the budding yeast Saccharomyces cerevisiae. We combined specific chemical inhibition of Cdk1 with quantitative mass spectrometry to identify the positions of 547 phosphorylation sites on 308 Cdk1 substrates in vivo. Comparisons of these substrates with orthologs throughout the ascomycete lineage revealed that the position of most phosphorylation sites is not conserved in evolution; instead, clusters of sites shift position in rapidly evolving disordered regions. We propose that the regulation of protein function by phosphorylation often depends on simple nonspecific mechanisms that disrupt or enhance protein-protein interactions. The gain or loss of phosphorylation sites in rapidly evolving regions could facilitate the evolution of kinase-signaling circuits.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2813701/" 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/PMC2813701/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holt, Liam J -- Tuch, Brian B -- Villen, Judit -- Johnson, Alexander D -- Gygi, Steven P -- Morgan, David O -- GM037049/GM/NIGMS NIH HHS/ -- GM50684/GM/NIGMS NIH HHS/ -- HG3456/HG/NHGRI NIH HHS/ -- R01 GM069901/GM/NIGMS NIH HHS/ -- R01 GM069901-06/GM/NIGMS NIH HHS/ -- R01 HG003456/HG/NHGRI NIH HHS/ -- R01 HG003456-06/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2009 Sep 25;325(5948):1682-6. doi: 10.1126/science.1172867.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Physiology and Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA 94158, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19779198" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Amino Acid Sequence ; Ascomycota/chemistry/genetics/metabolism ; *Biological Evolution ; CDC2 Protein Kinase/antagonists & inhibitors/*metabolism ; *Cell Cycle ; Cell Physiological Processes ; Computational Biology ; *Evolution, Molecular ; Molecular Sequence Data ; Phosphopeptides/chemistry/*metabolism ; Phosphorylation ; Phylogeny ; Protein Conformation ; Protein Structure, Tertiary ; Saccharomyces cerevisiae/chemistry/genetics/metabolism ; Saccharomyces cerevisiae Proteins/chemistry/*metabolism ; *Signal Transduction ; Substrate Specificity
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  • 39
    Publication Date: 2009-06-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mervis, Jeffrey -- New York, N.Y. -- Science. 2009 Jun 5;324(5932):1250-1. doi: 10.1126/science.324_1250a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19498138" target="_blank"〉PubMed〈/a〉
    Keywords: *Career Mobility ; Faculty/*statistics & numerical data ; Female ; Humans ; Male ; Personnel Selection ; *Prejudice ; *Research ; Universities/manpower/statistics & numerical data
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  • 40
    Publication Date: 2009-03-07
    Description: Patten recognition receptors, which recognize pathogens or components of injured cells (danger), trigger activation of the innate immune system. Whether and how the host distinguishes between danger- versus pathogen-associated molecular patterns remains unresolved. We report that CD24-deficient mice exhibit increased susceptibility to danger- but not pathogen-associated molecular patterns. CD24 associates with high mobility group box 1, heat shock protein 70, and heat shock protein 90; negatively regulates their stimulatory activity; and inhibits nuclear factor kappaB (NF-kappaB) activation. This occurs at least in part through CD24 association with Siglec-10 in humans or Siglec-G in mice. Our results reveal that the CD24-Siglec G pathway protects the host against a lethal response to pathological cell death and discriminates danger- versus pathogen-associated molecular patterns.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2765686/" 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/PMC2765686/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Guo-Yun -- Tang, Jie -- Zheng, Pan -- Liu, Yang -- AI064350/AI/NIAID NIH HHS/ -- CA112001/CA/NCI NIH HHS/ -- CA58033/CA/NCI NIH HHS/ -- R01 AI064350/AI/NIAID NIH HHS/ -- R01 AI064350-04/AI/NIAID NIH HHS/ -- R01 CA058033/CA/NCI NIH HHS/ -- R01 CA058033-16A2/CA/NCI NIH HHS/ -- R01 CA112001/CA/NCI NIH HHS/ -- R01 CA112001-02/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2009 Mar 27;323(5922):1722-5. doi: 10.1126/science.1168988. Epub 2009 Mar 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Immunotherapy, Department of Surgery, University of Michigan School of Medicine, Ann Arbor, MI 48109, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19264983" target="_blank"〉PubMed〈/a〉
    Keywords: Acetaminophen/toxicity ; Animals ; Antigens, CD24/genetics/*metabolism ; Cytokines/metabolism ; Dendritic Cells/immunology ; HMGB1 Protein/chemistry/immunology/*metabolism ; HSP70 Heat-Shock Proteins/metabolism ; HSP90 Heat-Shock Proteins/metabolism ; Humans ; *Immunity, Innate ; Immunoprecipitation ; Inflammation/*immunology ; Lectins/*metabolism ; Lipopolysaccharides/toxicity ; Liver/immunology/pathology ; Mice ; Mutant Proteins/chemistry/metabolism ; Necrosis/chemically induced/immunology ; Protein Structure, Tertiary ; Protein Tyrosine Phosphatase, Non-Receptor Type 6/metabolism ; Receptors, Antigen, B-Cell/*metabolism ; Receptors, Cell Surface/metabolism ; Receptors, Pattern Recognition/immunology/metabolism ; Signal Transduction ; Transcription Factor RelA/metabolism
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  • 41
    Publication Date: 2009-03-03
    Description: Amyotrophic lateral sclerosis (ALS) is a fatal degenerative motor neuron disorder. Ten percent of cases are inherited; most involve unidentified genes. We report here 13 mutations in the fused in sarcoma/translated in liposarcoma (FUS/TLS) gene on chromosome 16 that were specific for familial ALS. The FUS/TLS protein binds to RNA, functions in diverse processes, and is normally located predominantly in the nucleus. In contrast, the mutant forms of FUS/TLS accumulated in the cytoplasm of neurons, a pathology that is similar to that of the gene TAR DNA-binding protein 43 (TDP43), whose mutations also cause ALS. Neuronal cytoplasmic protein aggregation and defective RNA metabolism thus appear to be common pathogenic mechanisms involved in ALS and possibly in other neurodegenerative disorders.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kwiatkowski, T J Jr -- Bosco, D A -- Leclerc, A L -- Tamrazian, E -- Vanderburg, C R -- Russ, C -- Davis, A -- Gilchrist, J -- Kasarskis, E J -- Munsat, T -- Valdmanis, P -- Rouleau, G A -- Hosler, B A -- Cortelli, P -- de Jong, P J -- Yoshinaga, Y -- Haines, J L -- Pericak-Vance, M A -- Yan, J -- Ticozzi, N -- Siddique, T -- McKenna-Yasek, D -- Sapp, P C -- Horvitz, H R -- Landers, J E -- Brown, R H Jr -- New York, N.Y. -- Science. 2009 Feb 27;323(5918):1205-8. doi: 10.1126/science.1166066.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, Massachusetts General Hospital, 114 16th Street, Charlestown, MA 02129, USA. tkwiatkowski@partners.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19251627" target="_blank"〉PubMed〈/a〉
    Keywords: Age of Onset ; Amino Acid Substitution ; Amyotrophic Lateral Sclerosis/*genetics/metabolism/pathology ; Animals ; Brain/pathology ; Cell Line, Tumor ; Cell Nucleus/metabolism ; Chromosomes, Human, Pair 16/*genetics ; Cytoplasm/metabolism ; DNA-Binding Proteins/genetics/metabolism ; Exons ; Female ; Humans ; Male ; Mice ; Motor Neurons/chemistry/metabolism/ultrastructure ; Mutant Proteins/chemistry/genetics/metabolism ; *Mutation, Missense ; Neurons/metabolism/ultrastructure ; RNA/metabolism ; RNA-Binding Protein FUS/chemistry/*genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Sequence Analysis, DNA ; Spinal Cord/pathology
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  • 42
    Publication Date: 2009-12-08
    Description: Although the nematode Caenorhabditis elegans produces self-fertile hermaphrodites, it descended from a male/female species, so hermaphroditism provides a model for the origin of novel traits. In the related species C. remanei, which has only male and female sexes, lowering the activity of tra-2 by RNA interference created XX animals that made spermatids as well as oocytes, but their spermatids could not activate without the addition of male seminal fluid. However, by lowering the expression of both tra-2 and swm-1, a gene that regulates sperm activation in C. elegans, we produced XX animals with active sperm that were self-fertile. Thus, the evolution of hermaphroditism in Caenorhabditis probably required two steps: a mutation in the sex-determination pathway that caused XX spermatogenesis and a mutation that allowed these spermatids to self-activate.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baldi, Chris -- Cho, Soochin -- Ellis, Ronald E -- New York, N.Y. -- Science. 2009 Nov 13;326(5955):1002-5. doi: 10.1126/science.1176013.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Graduate School of Biomedical Sciences, University of Medicine and Dentistry of New Jersey, Stratford, NJ 08084, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965511" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; *Biological Evolution ; Caenorhabditis/anatomy & histology/classification/*genetics/*physiology ; Caenorhabditis elegans/anatomy & histology/classification/*genetics/*physiology ; Caenorhabditis elegans Proteins/genetics/physiology ; Crosses, Genetic ; Disorders of Sex Development/genetics ; Female ; Genes, Helminth ; Germ Cells/physiology ; Male ; Membrane Proteins/genetics/physiology ; Molecular Sequence Data ; *Mutation ; Oogenesis ; Ovulation ; Phylogeny ; Reproduction ; Selection, Genetic ; Sex Determination Processes ; Spermatids/physiology ; Spermatogenesis
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  • 43
    Publication Date: 2009-05-02
    Description: All canonical transfer RNAs (tRNAs) have a uridine at position 8, involved in maintaining tRNA tertiary structure. However, the hyperthermophilic archaeon Methanopyrus kandleri harbors 30 (out of 34) tRNA genes with cytidine at position 8. Here, we demonstrate C-to-U editing at this location in the tRNA's tertiary core, and present the crystal structure of a tRNA-specific cytidine deaminase, CDAT8, which has the cytidine deaminase domain linked to a tRNA-binding THUMP domain. CDAT8 is specific for C deamination at position 8, requires only the acceptor stem hairpin for activity, and belongs to a unique family within the "cytidine deaminase-like" superfamily. The presence of this C-to-U editing enzyme guarantees the proper folding and functionality of all M. kandleri tRNAs.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2857566/" 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/PMC2857566/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Randau, Lennart -- Stanley, Bradford J -- Kohlway, Andrew -- Mechta, Sarah -- Xiong, Yong -- Soll, Dieter -- AI078831/AI/NIAID NIH HHS/ -- GM22854/GM/NIGMS NIH HHS/ -- R01 GM022854/GM/NIGMS NIH HHS/ -- R01 GM022854-33/GM/NIGMS NIH HHS/ -- R33 AI078831/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2009 May 1;324(5927):657-9. doi: 10.1126/science.1170123.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06520, USA. lennart.randau@yale.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19407206" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Catalytic Domain ; Crystallography, X-Ray ; Cytidine Deaminase/*chemistry/*metabolism ; Deamination ; Euryarchaeota/enzymology/genetics/*metabolism ; Genes, Archaeal ; Models, Chemical ; Models, Molecular ; Nucleic Acid Conformation ; Protein Multimerization ; Protein Structure, Tertiary ; *RNA Editing ; RNA, Archaeal/chemistry/genetics/*metabolism ; RNA, Transfer/chemistry/genetics/*metabolism
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  • 44
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-04-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, Greg -- New York, N.Y. -- Science. 2009 Apr 3;324(5923):22. doi: 10.1126/science.324.5923.22.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19342557" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Clocks/genetics ; Brain/physiology ; Circadian Rhythm/genetics ; Drosophila Proteins/*metabolism ; Drosophila melanogaster/genetics/*physiology ; Genes, Insect ; Homeostasis ; Male ; Models, Animal ; Neurons/physiology ; Sleep/*physiology ; Social Behavior ; Synapses/*physiology
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  • 45
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-10-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Balter, Michael -- New York, N.Y. -- Science. 2009 Oct 9;326(5950):224-5. doi: 10.1126/science.326_224.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19815751" target="_blank"〉PubMed〈/a〉
    Keywords: Africa ; Animals ; Asia ; *Biological Evolution ; Emigration and Immigration ; Europe ; *Fossils ; *Hominidae/anatomy & histology/classification ; Humans ; Terminology as Topic
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  • 46
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-07-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Balter, Michael -- New York, N.Y. -- Science. 2009 Jul 10;325(5937):136-9. doi: 10.1126/science.325_136.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19589975" target="_blank"〉PubMed〈/a〉
    Keywords: *Anatomy, Artistic ; Animals ; Biological Evolution ; Facial Expression ; Female ; Fossils ; Hominidae/*anatomy & histology ; Humans ; Male ; *Models, Anatomic ; Museums ; Skin Pigmentation
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  • 47
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-01-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Read, Andrew F -- Thomas, Matthew B -- New York, N.Y. -- Science. 2009 Jan 2;323(5910):51-2. doi: 10.1126/science.1168659.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Infectious Disease Dynamics, Department of Biology, Pennsylvania State University, University Park, PA 16802, USA. a.read@psu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19119208" target="_blank"〉PubMed〈/a〉
    Keywords: Aedes/genetics/*microbiology/physiology/virology ; Animals ; Dengue/prevention & control/transmission ; Dengue Virus/*growth & development ; Female ; Humans ; Insect Vectors/genetics/*microbiology/physiology/virology ; Longevity ; Malaria/prevention & control/transmission ; Male ; Pest Control, Biological ; Selection, Genetic ; Virulence ; Wolbachia/genetics/pathogenicity/*physiology
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  • 48
    Publication Date: 2009-12-19
    Description: The evolution of cis regulatory elements (enhancers) of developmentally regulated genes plays a large role in the evolution of animal morphology. However, the mutational path of enhancer evolution--the number, origin, effect, and order of mutations that alter enhancer function--has not been elucidated. Here, we localized a suite of substitutions in a modular enhancer of the ebony locus responsible for adaptive melanism in a Ugandan Drosophila population. We show that at least five mutations with varied effects arose recently from a combination of standing variation and new mutations and combined to create an allele of large phenotypic effect. We underscore how enhancers are distinct macromolecular entities, subject to fundamentally different, and generally more relaxed, functional constraints relative to protein sequences.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3363996/" 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/PMC3363996/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rebeiz, Mark -- Pool, John E -- Kassner, Victoria A -- Aquadro, Charles F -- Carroll, Sean B -- F32GM78972/GM/NIGMS NIH HHS/ -- F32HG004182/HG/NHGRI NIH HHS/ -- GM036431/GM/NIGMS NIH HHS/ -- R01 GM036431/GM/NIGMS NIH HHS/ -- R01 GM036431-22/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Dec 18;326(5960):1663-7. doi: 10.1126/science.1178357.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Laboratory of Molecular Biology, University of Wisconsin, Madison, WI 53706, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20019281" target="_blank"〉PubMed〈/a〉
    Keywords: Abdomen ; Adaptation, Biological ; Alleles ; Animals ; Animals, Genetically Modified ; *Biological Evolution ; DNA-Binding Proteins/*genetics ; Drosophila Proteins/*genetics ; Drosophila melanogaster/*genetics/growth & development/physiology ; *Enhancer Elements, Genetic ; Evolution, Molecular ; Gene Expression Regulation, Developmental ; Haplotypes ; Molecular Sequence Data ; Mutation ; Pigmentation/*genetics ; Polymorphism, Genetic ; Uganda
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  • 49
    Publication Date: 2009-06-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stone, Richard -- New York, N.Y. -- Science. 2009 Jun 26;324(5935):1630-1. doi: 10.1126/science.324_1630.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19556477" target="_blank"〉PubMed〈/a〉
    Keywords: *Behavior, Addictive/diagnosis/therapy ; China ; Diagnostic and Statistical Manual of Mental Disorders ; Female ; Humans ; *Internet ; Male
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  • 50
    Publication Date: 2009-10-17
    Description: Elongation factor G (EF-G) is a guanosine triphosphatase (GTPase) that plays a crucial role in the translocation of transfer RNAs (tRNAs) and messenger RNA (mRNA) during translation by the ribosome. We report a crystal structure refined to 3.6 angstrom resolution of the ribosome trapped with EF-G in the posttranslocational state using the antibiotic fusidic acid. Fusidic acid traps EF-G in a conformation intermediate between the guanosine triphosphate and guanosine diphosphate forms. The interaction of EF-G with ribosomal elements implicated in stimulating catalysis, such as the L10-L12 stalk and the L11 region, and of domain IV of EF-G with the tRNA at the peptidyl-tRNA binding site (P site) and with mRNA shed light on the role of these elements in EF-G function. The stabilization of the mobile stalks of the ribosome also results in a more complete description of its structure.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3763468/" 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/PMC3763468/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gao, Yong-Gui -- Selmer, Maria -- Dunham, Christine M -- Weixlbaumer, Albert -- Kelley, Ann C -- Ramakrishnan, V -- 082086/Wellcome Trust/United Kingdom -- MC_U105184332/Medical Research Council/United Kingdom -- Medical Research Council/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2009 Oct 30;326(5953):694-9. doi: 10.1126/science.1179709.〈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/19833919" target="_blank"〉PubMed〈/a〉
    Keywords: Bacterial Proteins/chemistry ; Catalysis ; Crystallography, X-Ray ; Fusidic Acid/chemistry/pharmacology ; Models, Molecular ; Peptide Elongation Factor G/*chemistry ; Protein Biosynthesis ; Protein Conformation ; Protein Structure, Tertiary ; Protein Synthesis Inhibitors/chemistry/pharmacology ; RNA, Bacterial/chemistry ; RNA, Messenger/chemistry ; RNA, Transfer/chemistry ; Ribosomes/*chemistry ; Thermus thermophilus
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  • 51
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-08-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Redfield, Rosemary J -- New York, N.Y. -- Science. 2009 Aug 21;325(5943):946. doi: 10.1126/science.325_946a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19696335" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteria/genetics ; *Bacterial Physiological Phenomena ; *Biological Evolution ; *Meiosis ; *Recombination, Genetic
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  • 52
    Publication Date: 2009-04-18
    Description: Colonization of the land by plants most likely occurred in a stepwise fashion starting in the Mid-Ordovician. The earliest flora of bryophyte-like plants appears to have been cosmopolitan and dominated the planet, relatively unchanged, for some 30 million years. It is represented by fossilized dispersed cryptospores and fragmentary plant remains. In the Early Silurian, cryptospore abundance and diversity diminished abruptly as trilete spores appeared, became abundant, and underwent rapid diversification. This change coincides approximately with the appearance of vascular plant megafossils and probably represents the origin and adaptive radiation of vascular plants. We have obtained a diverse trilete spore occurrence from the Late Ordovician that suggests that vascular plants originated and diversified earlier than previously hypothesized, in Gondwana, before migrating elsewhere and secondarily diversifying.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Steemans, Philippe -- Herisse, Alain Le -- Melvin, John -- Miller, Merrell A -- Paris, Florentin -- Verniers, Jacques -- Wellman, Charles H -- New York, N.Y. -- Science. 2009 Apr 17;324(5925):353. doi: 10.1126/science.1169659.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Palaeobotany, B-18, University of Liege, 4000 Liege, Belgium.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19372423" target="_blank"〉PubMed〈/a〉
    Keywords: Biodiversity ; *Biological Evolution ; *Fossils ; Geologic Sediments ; Plant Physiological Phenomena ; *Plants ; Saudi Arabia ; *Spores
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  • 53
    Publication Date: 2009-03-17
    Description: The brain's sensitivity to unexpected outcomes plays a fundamental role in an organism's ability to adapt and learn new behaviors. Emerging research suggests that midbrain dopaminergic neurons encode these unexpected outcomes. We used microelectrode recordings during deep brain stimulation surgery to study neuronal activity in the human substantia nigra (SN) while patients with Parkinson's disease engaged in a probabilistic learning task motivated by virtual financial rewards. Based on a model of the participants' expected reward, we divided trial outcomes into expected and unexpected gains and losses. SN neurons exhibited significantly higher firing rates after unexpected gains than unexpected losses. No such differences were observed after expected gains and losses. This result provides critical support for the hypothesized role of the SN in human reinforcement learning.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2839450/" 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/PMC2839450/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zaghloul, Kareem A -- Blanco, Justin A -- Weidemann, Christoph T -- McGill, Kathryn -- Jaggi, Jurg L -- Baltuch, Gordon H -- Kahana, Michael J -- MH062196/MH/NIMH NIH HHS/ -- MH61975/MH/NIMH NIH HHS/ -- P50 MH062196/MH/NIMH NIH HHS/ -- P50 MH062196-090008/MH/NIMH NIH HHS/ -- R01 MH061975/MH/NIMH NIH HHS/ -- R01 MH061975-08/MH/NIMH NIH HHS/ -- R01 NS048598/NS/NINDS NIH HHS/ -- R01 NS048598-04/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2009 Mar 13;323(5920):1496-9. doi: 10.1126/science.1167342.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurosurgery, University of Pennsylvania, Philadelphia, PA 19104, USA. zaghlouk@uphs.upenn.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19286561" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Deep Brain Stimulation ; Dopamine/physiology ; Economics ; *Feedback, Psychological ; Female ; Humans ; *Learning ; Male ; Microelectrodes ; Middle Aged ; Models, Psychological ; Neurons/*physiology ; Parkinson Disease/physiopathology/therapy ; Probability ; Reinforcement (Psychology) ; *Reward ; Substantia Nigra/cytology/*physiology
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  • 54
    Publication Date: 2009-12-08
    Description: We tested whether classroom activities that encourage students to connect course materials to their lives will increase student motivation and learning. We hypothesized that this effect will be stronger for students who have low expectations of success. In a randomized field experiment with high school students, we found that a relevance intervention, which encouraged students to make connections between their lives and what they were learning in their science courses, increased interest in science and course grades for students with low success expectations. The results have implications for the development of science curricula and theories of motivation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hulleman, Chris S -- Harackiewicz, Judith M -- New York, N.Y. -- Science. 2009 Dec 4;326(5958):1410-2. doi: 10.1126/science.1177067.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Graduate Psychology, James Madison University, Harrisonburg, VA 22807, USA. hullemcs@jmu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965759" target="_blank"〉PubMed〈/a〉
    Keywords: *Achievement ; Adolescent ; Biology/*education ; Curriculum ; Educational Measurement ; Female ; Humans ; *Learning ; Male ; *Motivation ; Natural Science Disciplines/*education ; Regression Analysis ; Science/*education
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  • 55
    Publication Date: 2009-02-07
    Description: Evolution may be dominated by biotic factors, as in the Red Queen model, or abiotic factors, as in the Court Jester model, or a mixture of both. The two models appear to operate predominantly over different geographic and temporal scales: Competition, predation, and other biotic factors shape ecosystems locally and over short time spans, but extrinsic factors such as climate and oceanographic and tectonic events shape larger-scale patterns regionally and globally, and through thousands and millions of years. Paleobiological studies suggest that species diversity is driven largely by abiotic factors such as climate, landscape, or food supply, and comparative phylogenetic approaches offer new insights into clade dynamics.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Benton, Michael J -- New York, N.Y. -- Science. 2009 Feb 6;323(5915):728-32. doi: 10.1126/science.1157719.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Earth Sciences, University of Bristol, Bristol BS8 1RJ, UK. mike.benton@bristol.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19197051" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; *Biological Evolution ; Climate ; Fossils ; *Genetic Speciation ; Geography ; Geological Phenomena ; Logistic Models ; Models, Biological ; Phylogeny ; Time
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  • 56
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-02-07
    Description: Ever since the integration of Mendelian genetics into evolutionary biology in the early 20th century, evolutionary geneticists have for the most part treated genes and mutations as generic entities. However, recent observations indicate that all genes are not equal in the eyes of evolution. Evolutionarily relevant mutations tend to accumulate in hotspot genes and at specific positions within genes. Genetic evolution is constrained by gene function, the structure of genetic networks, and population biology. The genetic basis of evolution may be predictable to some extent, and further understanding of this predictability requires incorporation of the specific functions and characteristics of genes into evolutionary theory.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3184636/" 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/PMC3184636/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stern, David L -- Orgogozo, Virginie -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Feb 6;323(5915):746-51. doi: 10.1126/science.1158997.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology and Evolutionary Biology, Howard Hughes Medical Institute, Princeton University, Princeton, NJ 08544, USA. dstern@princeton.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19197055" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arabidopsis/genetics ; *Biological Evolution ; Drosophila/genetics ; Epistasis, Genetic ; *Evolution, Molecular ; Gene Regulatory Networks ; *Genes ; Genetic Speciation ; Genetic Variation ; *Mutation ; Phenotype ; Plants/genetics ; Population Dynamics ; Selection, Genetic
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  • 57
    Publication Date: 2009-04-11
    Description: Picoeukaryotes are a taxonomically diverse group of organisms less than 2 micrometers in diameter. Photosynthetic marine picoeukaryotes in the genus Micromonas thrive in ecosystems ranging from tropical to polar and could serve as sentinel organisms for biogeochemical fluxes of modern oceans during climate change. These broadly distributed primary producers belong to an anciently diverged sister clade to land plants. Although Micromonas isolates have high 18S ribosomal RNA gene identity, we found that genomes from two isolates shared only 90% of their predicted genes. Their independent evolutionary paths were emphasized by distinct riboswitch arrangements as well as the discovery of intronic repeat elements in one isolate, and in metagenomic data, but not in other genomes. Divergence appears to have been facilitated by selection and acquisition processes that actively shape the repertoire of genes that are mutually exclusive between the two isolates differently than the core genes. Analyses of the Micromonas genomes offer valuable insights into ecological differentiation and the dynamic nature of early plant evolution.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Worden, Alexandra Z -- Lee, Jae-Hyeok -- Mock, Thomas -- Rouze, Pierre -- Simmons, Melinda P -- Aerts, Andrea L -- Allen, Andrew E -- Cuvelier, Marie L -- Derelle, Evelyne -- Everett, Meredith V -- Foulon, Elodie -- Grimwood, Jane -- Gundlach, Heidrun -- Henrissat, Bernard -- Napoli, Carolyn -- McDonald, Sarah M -- Parker, Micaela S -- Rombauts, Stephane -- Salamov, Aasf -- Von Dassow, Peter -- Badger, Jonathan H -- Coutinho, Pedro M -- Demir, Elif -- Dubchak, Inna -- Gentemann, Chelle -- Eikrem, Wenche -- Gready, Jill E -- John, Uwe -- Lanier, William -- Lindquist, Erika A -- Lucas, Susan -- Mayer, Klaus F X -- Moreau, Herve -- Not, Fabrice -- Otillar, Robert -- Panaud, Olivier -- Pangilinan, Jasmyn -- Paulsen, Ian -- Piegu, Benoit -- Poliakov, Aaron -- Robbens, Steven -- Schmutz, Jeremy -- Toulza, Eve -- Wyss, Tania -- Zelensky, Alexander -- Zhou, Kemin -- Armbrust, E Virginia -- Bhattacharya, Debashish -- Goodenough, Ursula W -- Van de Peer, Yves -- Grigoriev, Igor V -- New York, N.Y. -- Science. 2009 Apr 10;324(5924):268-72. doi: 10.1126/science.1167222.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Monterey Bay Aquarium Research Institute, Moss Landing, CA 95039 USA. azworden@mbari.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19359590" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; *Biological Evolution ; Chlorophyta/classification/cytology/*genetics/physiology ; DNA Transposable Elements ; Ecosystem ; Gene Expression Regulation ; Genes ; Genetic Variation ; *Genome ; Introns ; Meiosis/genetics ; Molecular Sequence Data ; Oceans and Seas ; Photosynthesis/genetics ; Phylogeny ; Phytoplankton/classification/genetics ; Plants/*genetics ; RNA, Untranslated ; Repetitive Sequences, Nucleic Acid ; Sequence Analysis, DNA ; Transcription Factors/genetics
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  • 58
    Publication Date: 2009-02-07
    Description: A major cause for biodiversity may be biodiversity itself. As new species form, they may create new niches for others to exploit, potentially catalyzing a chain reaction of speciation events across trophic levels. We tested for such sequential radiation in the Rhagoletis pomonella (Diptera: Tephritidae) complex, a model for sympatric speciation via host plant shifting. We report that the parasitic wasp Diachasma alloeum (Hymenoptera: Braconidae) has formed new incipient species as a result of specializing on diversifying fly hosts, including the recently derived apple-infesting race of R. pomonella. Furthermore, we show that traits that differentially adapt R. pomonella flies to their host plants have also quickly evolved and serve as ecological barriers to reproduction, isolating the wasps. Speciation therefore cascades as the effects of new niche construction move across trophic levels.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Forbes, Andrew A -- Powell, Thomas H Q -- Stelinski, Lukasz L -- Smith, James J -- Feder, Jeffrey L -- New York, N.Y. -- Science. 2009 Feb 6;323(5915):776-9. doi: 10.1126/science.1166981.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, University of Notre Dame, Galvin Life Sciences Building, Notre Dame, IN 46556, USA. aaforbes@ucdavis.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19197063" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological ; Animals ; *Biodiversity ; Cues ; DNA, Mitochondrial/genetics ; Female ; Fruit ; Gene Flow ; Gene Frequency ; Genes, Insect ; *Genetic Speciation ; Genetic Variation ; Haplotypes ; Host-Parasite Interactions ; Male ; Microsatellite Repeats ; Molecular Sequence Data ; Odors ; Sexual Behavior, Animal ; Tephritidae/*genetics/growth & development/*parasitology/physiology ; Wasps/*genetics/growth & development/physiology
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  • 59
    Publication Date: 2009-11-07
    Description: The LKB1 tumor suppressor is a protein kinase that controls the activity of adenosine monophosphate-activated protein kinase (AMPK). LKB1 activity is regulated by the pseudokinase STRADalpha and the scaffolding protein MO25alpha through an unknown, phosphorylation-independent, mechanism. We describe the structure of the core heterotrimeric LKB1-STRADalpha-MO25alpha complex, revealing an unusual allosteric mechanism of LKB1 activation. STRADalpha adopts a closed conformation typical of active protein kinases and binds LKB1 as a pseudosubstrate. STRADalpha and MO25alpha promote the active conformation of LKB1, which is stabilized by MO25alpha interacting with the LKB1 activation loop. This previously undescribed mechanism of kinase activation may be relevant to understanding the evolution of other pseudokinases. The structure also reveals how mutations found in Peutz-Jeghers syndrome and in various sporadic cancers impair LKB1 function.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3518268/" 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/PMC3518268/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zeqiraj, Elton -- Filippi, Beatrice Maria -- Deak, Maria -- Alessi, Dario R -- van Aalten, Daan M F -- 087590/Wellcome Trust/United Kingdom -- C33794/A10969/Cancer Research UK/United Kingdom -- G0900138/Medical Research Council/United Kingdom -- MC_U127070193/Medical Research Council/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2009 Dec 18;326(5960):1707-11. doi: 10.1126/science.1178377. Epub 2009 Nov 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Molecular Microbiology, College of Life Sciences, University of Dundee, Dundee DD1 5EH, Scotland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19892943" target="_blank"〉PubMed〈/a〉
    Keywords: AMP-Activated Protein Kinases/metabolism ; Adaptor Proteins, Vesicular Transport/*chemistry/metabolism ; Allosteric Regulation ; Amino Acid Sequence ; Binding Sites ; Calcium-Binding Proteins/*chemistry/metabolism ; Crystallography, X-Ray ; Enzyme Activation ; Humans ; Models, Molecular ; Molecular Sequence Data ; Multiprotein Complexes/chemistry/metabolism ; Mutant Proteins/chemistry/metabolism ; Mutation ; Phosphorylation ; Protein Binding ; Protein Conformation ; Protein Interaction Domains and Motifs ; Protein Structure, Tertiary ; Protein-Serine-Threonine Kinases/*chemistry/metabolism
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  • 60
    Publication Date: 2009-01-10
    Description: Expression and signaling of CD30, a tumor necrosis factor receptor family member, is up-regulated in numerous lymphoid-derived neoplasias, most notably anaplastic large-cell lymphoma (ALCL) and Hodgkin's lymphoma. To gain insight into the mechanism of CD30 signaling, we used an affinity purification strategy that led to the identification of the aryl hydrocarbon receptor nuclear translocator (ARNT) as a CD30-interacting protein that modulated the activity of the RelB subunit of the transcription factor nuclear factor kappaB (NF-kappaB). ALCL cells that were deficient in ARNT exhibited defects in RelB recruitment to NF-kappaB-responsive promoters, whereas RelA recruitment to the same sites was potentiated, resulting in the augmented expression of these NF-kappaB-responsive genes. These findings indicate that ARNT functions in concert with RelB in a CD30-induced negative feedback mechanism.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2682336/" 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/PMC2682336/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wright, Casey W -- Duckett, Colin S -- R01 GM067827/GM/NIGMS NIH HHS/ -- R01 GM067827-04/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Jan 9;323(5911):251-5. doi: 10.1126/science.1162818.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, University of Michigan Medical School, Ann Arbor, MI 48109, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19131627" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antigens, CD30/*metabolism ; Aryl Hydrocarbon Receptor Nuclear Translocator/chemistry/genetics/*metabolism ; Cell Line ; Cell Line, Tumor ; DNA/metabolism ; Feedback, Physiological ; Gene Expression Regulation ; Humans ; Lymphoma, Large-Cell, Anaplastic/genetics/metabolism ; Molecular Sequence Data ; NF-kappa B/genetics/metabolism ; Promoter Regions, Genetic ; Protein Structure, Tertiary ; Receptors, Tumor Necrosis Factor, Type II/metabolism ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Transcription Factor RelB/genetics/*metabolism ; *Transcription, Genetic ; Transcriptional Activation
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  • 61
    Publication Date: 2009-11-07
    Description: The head and mouthpart structures of 11 species of Eurasian scorpionflies represent three extinct and closely related families during a 62-million-year interval from the late Middle Jurassic to the late Early Cretaceous. These taxa had elongate, siphonate (tubular) proboscides and fed on ovular secretions of extinct gymnosperms. Five potential ovulate host-plant taxa co-occur with these insects: a seed fern, conifer, ginkgoopsid, pentoxylalean, and gnetalean. The presence of scorpionfly taxa suggests that siphonate proboscides fed on gymnosperm pollination drops and likely engaged in pollination mutualisms with gymnosperms during the mid-Mesozoic, long before the similar and independent coevolution of nectar-feeding flies, moths, and beetles on angiosperms. All three scorpionfly families became extinct during the later Early Cretaceous, coincident with global gymnosperm-to-angiosperm turnover.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2944650/" 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/PMC2944650/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ren, Dong -- Labandeira, Conrad C -- Santiago-Blay, Jorge A -- Rasnitsyn, Alexandr -- Shih, ChungKun -- Bashkuev, Alexei -- Logan, M Amelia V -- Hotton, Carol L -- Dilcher, David -- Z99 LM999999/Intramural NIH HHS/ -- New York, N.Y. -- Science. 2009 Nov 6;326(5954):840-7. doi: 10.1126/science.1178338.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉College of Life Sciences, Capital Normal University, Beijing 100048, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19892981" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Asia ; *Biological Evolution ; Extinction, Biological ; Feeding Behavior ; *Fossils ; Gymnosperms/anatomy & histology/classification/*physiology ; Head/anatomy & histology ; Insects/*anatomy & histology/chemistry/classification/*physiology ; Mouth/anatomy & histology ; *Pollination
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  • 62
    Publication Date: 2009-04-04
    Description: Dysregulation of the fear system is at the core of many psychiatric disorders. Much progress has been made in uncovering the neural basis of fear learning through studies in which associative emotional memories are formed by pairing an initially neutral stimulus (conditioned stimulus, CS; e.g., a tone) to an unconditioned stimulus (US; e.g., a shock). Despite recent advances, the question of how to persistently weaken aversive CS-US associations, or dampen traumatic memories in pathological cases, remains a major dilemma. Two paradigms (blockade of reconsolidation and extinction) have been used in the laboratory to reduce acquired fear. Unfortunately, their clinical efficacy is limited: Reconsolidation blockade typically requires potentially toxic drugs, and extinction is not permanent. Here, we describe a behavioral design in which a fear memory in rats is destabilized and reinterpreted as safe by presenting an isolated retrieval trial before an extinction session. This procedure permanently attenuates the fear memory without the use of drugs.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3625935/" 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/PMC3625935/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Monfils, Marie-H -- Cowansage, Kiriana K -- Klann, Eric -- LeDoux, Joseph E -- F31 MH083472/MH/NIMH NIH HHS/ -- F31 MH083472-01A1/MH/NIMH NIH HHS/ -- F31MH083472/MH/NIMH NIH HHS/ -- K05 MH067048/MH/NIMH NIH HHS/ -- NS034007/NS/NINDS NIH HHS/ -- NS047384/NS/NINDS NIH HHS/ -- P50 MH058911/MH/NIMH NIH HHS/ -- R01 MH046516/MH/NIMH NIH HHS/ -- R37 MH038774/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2009 May 15;324(5929):951-5. doi: 10.1126/science.1167975. Epub 2009 Apr 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Neural Science, New York University, New York, NY 10003, USA. monfils@mail.utexas.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19342552" target="_blank"〉PubMed〈/a〉
    Keywords: Amygdala/physiology ; Animals ; Conditioning, Classical ; Extinction, Psychological/*physiology ; *Fear ; Male ; Memory/*physiology ; Mental Recall/*physiology ; Phosphorylation ; Rats ; Receptors, AMPA/metabolism
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  • 63
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-02-07
    Description: Biologists have long been fascinated by the exceptionally high diversity displayed by some evolutionary groups. Adaptive radiation in such clades is not only spectacular, but is also an extremely complex process influenced by a variety of ecological, genetic, and developmental factors and strongly dependent on historical contingencies. Using modeling approaches, we identify 10 general patterns concerning the temporal, spatial, and genetic/morphological properties of adaptive radiation. Some of these are strongly supported by empirical work, whereas for others, empirical support is more tentative. In almost all cases, more data are needed. Future progress in our understanding of adaptive radiation will be most successful if theoretical and empirical approaches are integrated, as has happened in other areas of evolutionary biology.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gavrilets, Sergey -- Losos, Jonathan B -- GM56693/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Feb 6;323(5915):732-7. doi: 10.1126/science.1157966.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology, National Institute for Mathematical and Biological Synthesis, University of Tennessee, Knoxville, TN 37996, USA. sergey@tiem.utk.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19197052" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological ; Animals ; *Biodiversity ; *Biological Evolution ; Ecosystem ; Fossils ; *Genetic Speciation ; Genetic Variation ; Models, Biological ; Phylogeny ; Selection, Genetic
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  • 64
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-06-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gebhardt, J Christof M -- Rief, Matthias -- New York, N.Y. -- Science. 2009 Jun 5;324(5932):1278-80. doi: 10.1126/science.1175874.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Physik Department E22, Technische Universitat Munchen, James-Franck-Strasse, 85748 Munchen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19498156" target="_blank"〉PubMed〈/a〉
    Keywords: ADAM Proteins/*metabolism ; Binding Sites ; Blood Coagulation/physiology ; Hemostasis/*physiology ; Humans ; *Mechanical Phenomena ; Optical Tweezers ; Protein Conformation ; Protein Folding ; Protein Multimerization ; Protein Structure, Tertiary ; Stress, Mechanical ; von Willebrand Factor/*chemistry/*metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 65
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-12-08
    Description: The extracellular matrix (ECM) and ECM proteins are important in phenomena as diverse as developmental patterning, stem cell niches, cancer, and genetic diseases. The ECM has many effects beyond providing structural support. ECM proteins typically include multiple, independently folded domains whose sequences and arrangement are highly conserved. Some of these domains bind adhesion receptors such as integrins that mediate cell-matrix adhesion and also transduce signals into cells. However, ECM proteins also bind soluble growth factors and regulate their distribution, activation, and presentation to cells. As organized, solid-phase ligands, ECM proteins can integrate complex, multivalent signals to cells in a spatially patterned and regulated fashion. These properties need to be incorporated into considerations of the functions of the ECM.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3536535/" 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/PMC3536535/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hynes, Richard O -- P01 HL066105/HL/NHLBI NIH HHS/ -- R01 CA017007/CA/NCI NIH HHS/ -- U54 CA126515/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Nov 27;326(5957):1216-9. doi: 10.1126/science.1176009.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. rohynes@mit.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965464" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Adhesion ; *Cell Physiological Processes ; Extracellular Matrix/*physiology ; Extracellular Matrix Proteins/chemistry/*metabolism ; Humans ; Intercellular Signaling Peptides and Proteins/metabolism ; Models, Biological ; Protein Binding ; Protein Interaction Domains and Motifs ; Protein Structure, Tertiary ; Signal Transduction ; Transforming Growth Factor beta/metabolism
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  • 66
    Publication Date: 2009-08-29
    Description: A single-base pair resolution silkworm genetic variation map was constructed from 40 domesticated and wild silkworms, each sequenced to approximately threefold coverage, representing 99.88% of the genome. We identified ~16 million single-nucleotide polymorphisms, many indels, and structural variations. We find that the domesticated silkworms are clearly genetically differentiated from the wild ones, but they have maintained large levels of genetic variability, suggesting a short domestication event involving a large number of individuals. We also identified signals of selection at 354 candidate genes that may have been important during domestication, some of which have enriched expression in the silk gland, midgut, and testis. These data add to our understanding of the domestication processes and may have applications in devising pest control strategies and advancing the use of silkworms as efficient bioreactors.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3951477/" 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/PMC3951477/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xia, Qingyou -- Guo, Yiran -- Zhang, Ze -- Li, Dong -- Xuan, Zhaoling -- Li, Zhuo -- Dai, Fangyin -- Li, Yingrui -- Cheng, Daojun -- Li, Ruiqiang -- Cheng, Tingcai -- Jiang, Tao -- Becquet, Celine -- Xu, Xun -- Liu, Chun -- Zha, Xingfu -- Fan, Wei -- Lin, Ying -- Shen, Yihong -- Jiang, Lan -- Jensen, Jeffrey -- Hellmann, Ines -- Tang, Si -- Zhao, Ping -- Xu, Hanfu -- Yu, Chang -- Zhang, Guojie -- Li, Jun -- Cao, Jianjun -- Liu, Shiping -- He, Ningjia -- Zhou, Yan -- Liu, Hui -- Zhao, Jing -- Ye, Chen -- Du, Zhouhe -- Pan, Guoqing -- Zhao, Aichun -- Shao, Haojing -- Zeng, Wei -- Wu, Ping -- Li, Chunfeng -- Pan, Minhui -- Li, Jingjing -- Yin, Xuyang -- Li, Dawei -- Wang, Juan -- Zheng, Huisong -- Wang, Wen -- Zhang, Xiuqing -- Li, Songgang -- Yang, Huanming -- Lu, Cheng -- Nielsen, Rasmus -- Zhou, Zeyang -- Wang, Jian -- Xiang, Zhonghuai -- Wang, Jun -- R01 HG003229/HG/NHGRI NIH HHS/ -- R01 HG003229-05/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2009 Oct 16;326(5951):433-6. doi: 10.1126/science.1176620. Epub 2009 Aug 27.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Key Sericultural Laboratory of Agricultural Ministry, College of Biotechnology, Southwest University, Chongqing 400715, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19713493" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bombyx/classification/*genetics ; Digestive System/metabolism ; Exocrine Glands/metabolism ; Female ; Gene Expression ; *Genes, Insect ; *Genetic Variation ; *Genome, Insect ; INDEL Mutation ; Linkage Disequilibrium ; Male ; Phylogeny ; Polymorphism, Single Nucleotide ; Principal Component Analysis ; Selection, Genetic ; *Sequence Analysis, DNA ; Testis/metabolism
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-10-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaeberlein, Matt -- Kapahi, Pankaj -- R01 AG031108/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 2009 Oct 2;326(5949):55-6. doi: 10.1126/science.1181034.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, University of Washington, Seattle, WA 98195, USA. kaeber@u.washington.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19797648" target="_blank"〉PubMed〈/a〉
    Keywords: AMP-Activated Protein Kinases/genetics/metabolism ; Aging/*physiology ; Animals ; Caloric Restriction ; Enzyme Activation ; Female ; Gene Expression ; Longevity/*physiology ; Male ; Mice ; Mice, Knockout ; Oligonucleotide Array Sequence Analysis ; Phosphorylation ; Protein Biosynthesis ; Protein Kinases/metabolism ; Protein Subunits ; Ribosomal Protein S6/*metabolism ; Ribosomal Protein S6 Kinases, 90-kDa/genetics/*metabolism ; *Signal Transduction ; Sirolimus/pharmacology ; TOR Serine-Threonine Kinases
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  • 68
    Publication Date: 2009-12-08
    Description: Environmental perturbations during mass extinctions were likely manifested differently in epicontinental seas than in open-ocean-facing habitats of comparable depth. Here, we present a dissection of origination and extinction in epicontinental seas versus open-ocean-facing coastal regions in the Permian through Cretaceous periods, an interval through which both settings are well represented in the fossil record. Results demonstrate that extinction rates were significantly higher in open-ocean settings than in epicontinental seas during major mass extinctions but not at other times and that origination rates were significantly higher in open-ocean settings for a protracted interval from the Late Jurassic through the Late Cretaceous. These patterns are manifested even when other paleogeographic and environmental variables are held fixed, indicating that epicontinental seas and open-ocean-facing coastlines carry distinct macroevolutionary signatures.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, Arnold I -- Foote, Michael -- New York, N.Y. -- Science. 2009 Nov 20;326(5956):1106-9. doi: 10.1126/science.1180061.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Geology, University of Cincinnati, Post Office Box 210013, Cincinnati, OH 45221, USA. arnold.miller@uc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965428" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Bivalvia ; *Ecosystem ; Environment ; *Extinction, Biological ; Geologic Sediments ; Geological Phenomena ; Kinetics ; Oceans and Seas
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  • 69
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-01-24
    Description: The two universally required components of the intracellular membrane fusion machinery, SNARE and SM (Sec1/Munc18-like) proteins, play complementary roles in fusion. Vesicular and target membrane-localized SNARE proteins zipper up into an alpha-helical bundle that pulls the two membranes tightly together to exert the force required for fusion. SM proteins, shaped like clasps, bind to trans-SNARE complexes to direct their fusogenic action. Individual fusion reactions are executed by distinct combinations of SNARE and SM proteins to ensure specificity, and are controlled by regulators that embed the SM-SNARE fusion machinery into a physiological context. This regulation is spectacularly apparent in the exquisite speed and precision of synaptic exocytosis, where synaptotagmin (the calcium-ion sensor for fusion) cooperates with complexin (the clamp activator) to control the precisely timed release of neurotransmitters that initiates synaptic transmission and underlies brain function.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3736821/" 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/PMC3736821/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sudhof, Thomas C -- Rothman, James E -- R01 GM071458/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Jan 23;323(5913):474-7. doi: 10.1126/science.1161748.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cellular and Molecular Physiology, Stanford University, Palo Alto, CA 94304, USA. tcs1@stanford.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19164740" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Animals ; *Membrane Fusion ; Munc18 Proteins/chemistry/*metabolism ; Nerve Tissue Proteins/metabolism ; Protein Binding ; Protein Conformation ; Protein Structure, Quaternary ; Protein Structure, Tertiary ; Qa-SNARE Proteins/chemistry/metabolism ; SNARE Proteins/chemistry/*metabolism ; Synapses/physiology ; Synaptic Transmission ; Synaptic Vesicles/physiology ; Synaptotagmins/metabolism ; Vesicular Transport Proteins/chemistry/*metabolism
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  • 70
    Publication Date: 2009-10-03
    Description: Adult stem cells often reside in local microenvironments, or niches. Although niches can contain multiple types of stem cells, the coordinate regulation of stem cell behavior is poorly understood. In the Drosophila testis, Janus kinase-signal transducer and activator of transcription (JAK-STAT) signaling is directly required for maintenance of the resident germline and somatic stem cells. We found that the JAK-STAT signaling target and inhibitor Suppressor of cytokine signaling 36E (SOCS36E) is required for germline stem cell maintenance. SOCS36E suppresses JAK-STAT signaling specifically in the somatic stem cells, preventing them from displacing neighboring germline stem cells in a manner that depends on the adhesion protein integrin. Thus, in niches housing multiple stem cell types, negative feedback loops can modulate signaling, preventing one stem cell population from outcompeting the other.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3073347/" 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/PMC3073347/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Issigonis, Melanie -- Tulina, Natalia -- de Cuevas, Margaret -- Brawley, Crista -- Sandler, Laurel -- Matunis, Erika -- R01 HD040307/HD/NICHD NIH HHS/ -- R01 HD040307-05A1/HD/NICHD NIH HHS/ -- R01 HD052937/HD/NICHD NIH HHS/ -- R01 HD052937-01A1/HD/NICHD NIH HHS/ -- R01HD40307/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2009 Oct 2;326(5949):153-6. doi: 10.1126/science.1176817.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Johns Hopkins University School of Medicine, 725 North Wolfe Street, Baltimore, MD 21205, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19797664" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Adhesion ; Cell Count ; Drosophila/*cytology/metabolism ; Drosophila Proteins/genetics/*metabolism ; Germ Cells/cytology ; Integrins/metabolism ; Janus Kinases/*metabolism ; Male ; Mutagenesis, Insertional ; STAT Transcription Factors/*metabolism ; *Signal Transduction ; Stem Cell Niche/*cytology/physiology ; Stem Cells/*physiology ; Suppressor of Cytokine Signaling Proteins/genetics/*metabolism ; Testis/cytology/metabolism
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  • 71
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-06-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Friedman, William E -- New York, N.Y. -- Science. 2009 Jun 26;324(5935):1652-3. doi: 10.1126/science.1176526.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO 80309, USA. ned@colorado.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19556491" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/*cytology/*metabolism ; *Biological Evolution ; Cell Nucleus/ultrastructure ; Cell Nucleus Division ; Flowers/*cytology/metabolism ; Germ Cells/*cytology/metabolism ; Indoleacetic Acids/*metabolism
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  • 72
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-02-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sugden, Andrew -- Ash, Caroline -- Hanson, Brooks -- Zahn, Laura -- New York, N.Y. -- Science. 2009 Feb 6;323(5915):727. doi: 10.1126/science.323.5915.727.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19197050" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; *Biological Evolution ; Evolution, Molecular ; *Genetic Speciation
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  • 73
    Publication Date: 2009-09-19
    Description: Metabolic pathways have traditionally been described in terms of biochemical reactions and metabolites. With the use of structural genomics and systems biology, we generated a three-dimensional reconstruction of the central metabolic network of the bacterium Thermotoga maritima. The network encompassed 478 proteins, of which 120 were determined by experiment and 358 were modeled. Structural analysis revealed that proteins forming the network are dominated by a small number (only 182) of basic shapes (folds) performing diverse but mostly related functions. Most of these folds are already present in the essential core (approximately 30%) of the network, and its expansion by nonessential proteins is achieved with relatively few additional folds. Thus, integration of structural data with networks analysis generates insight into the function, mechanism, and evolution of biological networks.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2833182/" 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/PMC2833182/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Ying -- Thiele, Ines -- Weekes, Dana -- Li, Zhanwen -- Jaroszewski, Lukasz -- Ginalski, Krzysztof -- Deacon, Ashley M -- Wooley, John -- Lesley, Scott A -- Wilson, Ian A -- Palsson, Bernhard -- Osterman, Andrei -- Godzik, Adam -- P20 GM076221/GM/NIGMS NIH HHS/ -- P20 GM076221-03/GM/NIGMS NIH HHS/ -- U54 GM074898/GM/NIGMS NIH HHS/ -- U54 GM074898-05/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Sep 18;325(5947):1544-9. doi: 10.1126/science.1174671.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Joint Center for Molecular Modeling (JCMM), Burnham Institute for Medical Research, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19762644" target="_blank"〉PubMed〈/a〉
    Keywords: Bacterial Proteins/*chemistry/*metabolism ; Computational Biology ; Computer Simulation ; Enzymes/*chemistry/*metabolism ; Evolution, Molecular ; Genes, Bacterial ; Genome, Bacterial ; *Metabolic Networks and Pathways ; Models, Biological ; Models, Molecular ; Protein Conformation ; Protein Folding ; Protein Structure, Tertiary ; Systems Biology ; Thermotoga maritima/chemistry/genetics/*metabolism
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  • 74
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-05-16
    Description: Integrins are transmembrane cell-adhesion molecules that carry signals from the outside to the inside of the cell and vice versa. Like other cell surface receptors, integrins signal in response to ligand binding; however, events within the cell can also regulate the affinity of integrins for ligands. This feature is important in physiological situations such as those in blood, in which cells are always in close proximity to their ligands, yet cell-ligand interactions occur only after integrin activation in response to specific external cues. This review focuses on the mechanisms whereby two key proteins, talin and the kindlins, regulate integrin activation by binding the tails of integrin-beta subunits.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Moser, Markus -- Legate, Kyle R -- Zent, Roy -- Fassler, Reinhard -- DK 69921/DK/NIDDK NIH HHS/ -- DK075594/DK/NIDDK NIH HHS/ -- DK65138/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2009 May 15;324(5929):895-9. doi: 10.1126/science.1163865.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Planck Institute of Biochemistry, 82152 Martinsried, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19443776" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cell Adhesion ; Humans ; Integrins/chemistry/*metabolism ; Ligands ; Membrane Proteins/chemistry/*metabolism ; Protein Binding ; Protein Conformation ; Protein Structure, Tertiary ; Signal Transduction ; Talin/chemistry/*metabolism
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  • 75
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-01-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sugden, Andrew -- Hanson, Brooks -- Pennisi, Elizabeth -- Culotta, Elizabeth -- New York, N.Y. -- Science. 2009 Jan 9;323(5911):185. doi: 10.1126/science.1169716.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19131596" target="_blank"〉PubMed〈/a〉
    Keywords: *Anniversaries and Special Events ; *Biological Evolution ; Great Britain ; History, 19th Century ; History, 20th Century
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  • 76
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-12-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaiser, Jocelyn -- New York, N.Y. -- Science. 2009 Dec 11;326(5959):1468-9. doi: 10.1126/science.326.5959.1468-b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20007873" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Proliferation ; Clinical Trials as Topic ; *Genetic Therapy ; Genetic Vectors ; HMGA2 Protein/genetics ; Hemoglobins/analysis ; Humans ; Male ; United States ; Young Adult ; beta-Globins/biosynthesis/*genetics ; beta-Thalassemia/genetics/*therapy
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  • 77
    Publication Date: 2009-08-08
    Description: Itch and pain are two distinct sensations. Although our previous study suggested that gastrin-releasing peptide receptor (GRPR) is an itch-specific gene in the spinal cord, a long-standing question of whether there are separate neuronal pathways for itch and pain remains unsettled. We selectively ablated lamina I neurons expressing GRPR in the spinal cord of mice. These mice showed profound scratching deficits in response to all of the itching (pruritogenic) stimuli tested, irrespective of their histamine dependence. In contrast, pain behaviors were unaffected. Our data also suggest that GRPR+ neurons are different from the spinothalamic tract neurons that have been the focus of the debate. Together, the present study suggests that GRPR+ neurons constitute a long-sought labeled line for itch sensation in the spinal cord.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2786498/" 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/PMC2786498/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, Yan-Gang -- Zhao, Zhong-Qiu -- Meng, Xiu-Li -- Yin, Jun -- Liu, Xian-Yu -- Chen, Zhou-Feng -- P01 NS049048-23/NS/NINDS NIH HHS/ -- P30 NS057105/NS/NINDS NIH HHS/ -- P30 NS057105-04/NS/NINDS NIH HHS/ -- R01 AR056318/AR/NIAMS NIH HHS/ -- R01 AR056318-01A1/AR/NIAMS NIH HHS/ -- R01 NS046036/NS/NINDS NIH HHS/ -- R01 NS046036-05/NS/NINDS NIH HHS/ -- UL1 RR024992/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2009 Sep 18;325(5947):1531-4. doi: 10.1126/science.1174868. Epub 2009 Aug 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Anesthesiology, Psychiatry, and Developmental Biology, Washington University School of Medicine Pain Center, St. Louis, MO 63110, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19661382" target="_blank"〉PubMed〈/a〉
    Keywords: Afferent Pathways/physiology ; Animals ; Behavior, Animal ; Bombesin/pharmacology ; Chronic Disease ; Histamine ; Humans ; Male ; Mice ; Mice, Inbred C57BL ; Neurons/*physiology ; Pain/physiopathology ; Pruritus/*physiopathology ; Receptors, Bombesin/genetics/*metabolism ; Ribosome Inactivating Proteins, Type 1/pharmacology ; Sensation/physiology ; Spinal Cord/*cytology ; Spinothalamic Tracts/cytology/physiology
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  • 78
    Publication Date: 2009-04-11
    Description: Heterozygous mutations in the gene encoding isocitrate dehydrogenase-1 (IDH1) occur in certain human brain tumors, but their mechanistic role in tumor development is unknown. We have shown that tumor-derived IDH1 mutations impair the enzyme's affinity for its substrate and dominantly inhibit wild-type IDH1 activity through the formation of catalytically inactive heterodimers. Forced expression of mutant IDH1 in cultured cells reduces formation of the enzyme product, alpha-ketoglutarate (alpha-KG), and increases the levels of hypoxia-inducible factor subunit HIF-1alpha, a transcription factor that facilitates tumor growth when oxygen is low and whose stability is regulated by alpha-KG. The rise in HIF-1alpha levels was reversible by an alpha-KG derivative. HIF-1alpha levels were higher in human gliomas harboring an IDH1 mutation than in tumors without a mutation. Thus, IDH1 appears to function as a tumor suppressor that, when mutationally inactivated, contributes to tumorigenesis in part through induction of the HIF-1 pathway.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3251015/" 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/PMC3251015/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhao, Shimin -- Lin, Yan -- Xu, Wei -- Jiang, Wenqing -- Zha, Zhengyu -- Wang, Pu -- Yu, Wei -- Li, Zhiqiang -- Gong, Lingling -- Peng, Yingjie -- Ding, Jianping -- Lei, Qunying -- Guan, Kun-Liang -- Xiong, Yue -- R01 CA068377/CA/NCI NIH HHS/ -- R01 CA068377-14/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2009 Apr 10;324(5924):261-5. doi: 10.1126/science.1170944.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular and Cell Biology Laboratory, Institute of Biomedical Sciences, Fudan University, 130 Dong-An Road, Shanghai 200032, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19359588" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Aged ; Astrocytoma/genetics/metabolism ; Biocatalysis ; Brain Neoplasms/*genetics/metabolism ; Cell Line ; Child ; Female ; Gene Expression Regulation, Neoplastic ; Genes, Tumor Suppressor ; Glioblastoma/genetics/metabolism ; Glioma/*genetics/metabolism ; Humans ; Hypoxia-Inducible Factor 1, alpha Subunit/antagonists & ; inhibitors/genetics/*metabolism ; Isocitrate Dehydrogenase/chemistry/*genetics/*metabolism ; Ketoglutaric Acids/metabolism ; Male ; Middle Aged ; Mutant Proteins/chemistry/metabolism ; Oligodendroglioma/genetics/metabolism ; Oxalates/pharmacology ; Protein Multimerization
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  • 79
    Publication Date: 2009-07-25
    Description: The toolbox of rat genetics currently lacks the ability to introduce site-directed, heritable mutations into the genome to create knockout animals. By using engineered zinc-finger nucleases (ZFNs) designed to target an integrated reporter and two endogenous rat genes, Immunoglobulin M (IgM) and Rab38, we demonstrate that a single injection of DNA or messenger RNA encoding ZFNs into the one-cell rat embryo leads to a high frequency of animals carrying 25 to 100% disruption at the target locus. These mutations are faithfully and efficiently transmitted through the germline. Our data demonstrate the feasibility of targeted gene disruption in multiple rat strains within 4 months time, paving the way to a humanized monoclonal antibody platform and additional human disease models.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2831805/" 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/PMC2831805/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Geurts, Aron M -- Cost, Gregory J -- Freyvert, Yevgeniy -- Zeitler, Bryan -- Miller, Jeffrey C -- Choi, Vivian M -- Jenkins, Shirin S -- Wood, Adam -- Cui, Xiaoxia -- Meng, Xiangdong -- Vincent, Anna -- Lam, Stephen -- Michalkiewicz, Mieczyslaw -- Schilling, Rebecca -- Foeckler, Jamie -- Kalloway, Shawn -- Weiler, Hartmut -- Menoret, Severine -- Anegon, Ignacio -- Davis, Gregory D -- Zhang, Lei -- Rebar, Edward J -- Gregory, Philip D -- Urnov, Fyodor D -- Jacob, Howard J -- Buelow, Roland -- 5P01HL082798-03/HL/NHLBI NIH HHS/ -- 5U01HL066579-08/HL/NHLBI NIH HHS/ -- P01 HL082798/HL/NHLBI NIH HHS/ -- P01 HL082798-03/HL/NHLBI NIH HHS/ -- U01 HL066579/HL/NHLBI NIH HHS/ -- U01 HL066579-08/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2009 Jul 24;325(5939):433. doi: 10.1126/science.1172447.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Human and Molecular Genetics Center, Medical College of Wisconsin, Milwaukee, WI 52336, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19628861" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Dna ; Embryo, Mammalian ; Endodeoxyribonucleases/genetics/*metabolism ; Feasibility Studies ; Female ; *Gene Knockout Techniques ; Green Fluorescent Proteins ; Immunoglobulin M/*genetics ; Male ; *Microinjections ; Molecular Sequence Data ; Mutagenesis, Site-Directed ; RNA, Messenger ; Rats ; *Zinc Fingers/genetics ; rab GTP-Binding Proteins/*genetics
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  • 80
    Publication Date: 2009-10-03
    Description: Sex determination mechanisms differ among animal species, but it is not clear how these differences evolve. New sex determiners may arise in response to sexual conflicts, which occur when traits benefit one sex but hinder the other. We identified the genetic basis for the orange-blotch (OB) color pattern, a trait under sexually antagonistic selection in the cichlid fish of Lake Malawi, East Africa. The OB phenotype is due to a cis-regulatory mutation in the Pax7 gene. OB provides benefits of camouflage to females but disrupts the species-specific male color patterns used for mate recognition. We suggest that the resulting sexual conflict over the OB allele has been resolved by selection for a novel female sex determination locus that has invaded populations with an ancestral male sex determination system.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3174268/" 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/PMC3174268/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roberts, Reade B -- Ser, Jennifer R -- Kocher, Thomas D -- F32HD051383/HD/NICHD NIH HHS/ -- R01 HD058635/HD/NICHD NIH HHS/ -- R01 HD058635-04/HD/NICHD NIH HHS/ -- R01HD058635/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2009 Nov 13;326(5955):998-1001. doi: 10.1126/science.1174705. Epub 2009 Oct 1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Maryland, College Park, MD 20742, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19797625" target="_blank"〉PubMed〈/a〉
    Keywords: Africa, Eastern ; Animals ; Biological Evolution ; Chromosome Mapping ; Cichlids/*genetics/*physiology ; Female ; Fresh Water ; Gene Expression Regulation ; Genetic Fitness ; Genetic Speciation ; Haplotypes ; Linkage Disequilibrium ; Male ; *Mating Preference, Animal ; Melanophores/cytology/metabolism ; Microsatellite Repeats ; Molecular Sequence Data ; PAX7 Transcription Factor/*genetics ; Phenotype ; Pigmentation/*genetics ; Polymorphism, Single Nucleotide ; *Selection, Genetic ; Sex Characteristics ; *Sex Determination Processes ; Sexual Behavior, Animal
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  • 81
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-12-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibbons, Ann -- New York, N.Y. -- Science. 2009 Dec 18;326(5960):1598-9. doi: 10.1126/science.326.5960.1598-a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20019252" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Bone and Bones/anatomy & histology ; Ethiopia ; Female ; *Fossils ; Geography ; *Hominidae/anatomy & histology/classification/physiology ; Humans ; Locomotion ; Posture ; Skeleton ; Walking
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  • 82
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-07-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rieppel, Olivier -- New York, N.Y. -- Science. 2009 Jul 10;325(5937):154-5. doi: 10.1126/science.1177446.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Rowe Family Curator of Evolutionary Biology, Department of Geology, Field Museum, 1400 South Lake Shore Drive, Chicago, IL 60605-2496, USA. orieppel@fieldmuseum.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19589988" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Body Patterning ; Bone and Bones/embryology ; Embryo, Nonmammalian/anatomy & histology ; Embryonic Development ; Muscle, Skeletal/embryology ; Musculoskeletal Development ; Ribs/embryology ; Scapula/embryology ; Turtles/*anatomy & histology/*embryology
    Print ISSN: 0036-8075
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  • 83
    Publication Date: 2009-04-25
    Description: The imprints of domestication and breed development on the genomes of livestock likely differ from those of companion animals. A deep draft sequence assembly of shotgun reads from a single Hereford female and comparative sequences sampled from six additional breeds were used to develop probes to interrogate 37,470 single-nucleotide polymorphisms (SNPs) in 497 cattle from 19 geographically and biologically diverse breeds. These data show that cattle have undergone a rapid recent decrease in effective population size from a very large ancestral population, possibly due to bottlenecks associated with domestication, selection, and breed formation. Domestication and artificial selection appear to have left detectable signatures of selection within the cattle genome, yet the current levels of diversity within breeds are at least as great as exists within humans.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2735092/" 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/PMC2735092/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bovine HapMap Consortium -- Gibbs, Richard A -- Taylor, Jeremy F -- Van Tassell, Curtis P -- Barendse, William -- Eversole, Kellye A -- Gill, Clare A -- Green, Ronnie D -- Hamernik, Debora L -- Kappes, Steven M -- Lien, Sigbjorn -- Matukumalli, Lakshmi K -- McEwan, John C -- Nazareth, Lynne V -- Schnabel, Robert D -- Weinstock, George M -- Wheeler, David A -- Ajmone-Marsan, Paolo -- Boettcher, Paul J -- Caetano, Alexandre R -- Garcia, Jose Fernando -- Hanotte, Olivier -- Mariani, Paola -- Skow, Loren C -- Sonstegard, Tad S -- Williams, John L -- Diallo, Boubacar -- Hailemariam, Lemecha -- Martinez, Mario L -- Morris, Chris A -- Silva, Luiz O C -- Spelman, Richard J -- Mulatu, Woudyalew -- Zhao, Keyan -- Abbey, Colette A -- Agaba, Morris -- Araujo, Flabio R -- Bunch, Rowan J -- Burton, James -- Gorni, Chiara -- Olivier, Hanotte -- Harrison, Blair E -- Luff, Bill -- Machado, Marco A -- Mwakaya, Joel -- Plastow, Graham -- Sim, Warren -- Smith, Timothy -- Thomas, Merle B -- Valentini, Alessio -- Williams, Paul -- Womack, James -- Woolliams, John A -- Liu, Yue -- Qin, Xiang -- Worley, Kim C -- Gao, Chuan -- Jiang, Huaiyang -- Moore, Stephen S -- Ren, Yanru -- Song, Xing-Zhi -- Bustamante, Carlos D -- Hernandez, Ryan D -- Muzny, Donna M -- Patil, Shobha -- San Lucas, Anthony -- Fu, Qing -- Kent, Matthew P -- Vega, Richard -- Matukumalli, Aruna -- McWilliam, Sean -- Sclep, Gert -- Bryc, Katarzyna -- Choi, Jungwoo -- Gao, Hong -- Grefenstette, John J -- Murdoch, Brenda -- Stella, Alessandra -- Villa-Angulo, Rafael -- Wright, Mark -- Aerts, Jan -- Jann, Oliver -- Negrini, Riccardo -- Goddard, Mike E -- Hayes, Ben J -- Bradley, Daniel G -- Barbosa da Silva, Marcos -- Lau, Lilian P L -- Liu, George E -- Lynn, David J -- Panzitta, Francesca -- Dodds, Ken G -- R01 GM083606/GM/NIGMS NIH HHS/ -- R01 GM083606-02/GM/NIGMS NIH HHS/ -- U54 HG003273/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2009 Apr 24;324(5926):528-32. doi: 10.1126/science.1167936.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19390050" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Breeding ; Cattle/*genetics ; Female ; Gene Frequency ; *Genetic Variation ; *Genome ; Male ; Molecular Sequence Data ; Mutation ; *Polymorphism, Single Nucleotide ; Population Density
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  • 84
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-12-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zimmer, Carl -- New York, N.Y. -- Science. 2009 Dec 4;326(5958):1334-6. doi: 10.1126/science.326.5958.1334.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965730" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biodiversity ; *Biological Evolution ; Climate Change ; Cultural Evolution ; Ecosystem ; Evolution, Planetary ; Extinction, Biological ; Genetic Engineering ; *Genome, Human ; Human Activities ; Humans ; Mutation ; *Selection, Genetic
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  • 85
    Publication Date: 2009-12-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibbons, Ann -- New York, N.Y. -- Science. 2009 Dec 11;326(5959):1478-9. doi: 10.1126/science.326.5959.1478.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20007881" target="_blank"〉PubMed〈/a〉
    Keywords: Agriculture ; Animals ; *Biological Evolution ; Diabetes Mellitus/epidemiology/etiology ; *Diet/history ; Dietary Carbohydrates ; Energy Intake ; Ethnic Groups ; Fossils ; History, Ancient ; Hominidae ; Humans ; Hypertension/epidemiology/etiology ; Meat ; Obesity/epidemiology/etiology
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  • 86
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-08-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zimmer, Carl -- New York, N.Y. -- Science. 2009 Aug 7;325(5941):666-8. doi: 10.1126/science.325_666.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19661396" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Archaea/classification/genetics/physiology ; *Bacteria/classification/genetics ; Bacterial Physiological Phenomena ; *Biological Evolution ; Cell Nucleus/genetics/metabolism ; *Eukaryotic Cells/cytology/metabolism/physiology ; Gene Transfer, Horizontal ; Genes, Archaeal ; Genes, Bacterial ; Genes, Mitochondrial ; *Genome ; Mitochondria/physiology ; Organelles/physiology ; *Prokaryotic Cells/cytology/metabolism/physiology ; Symbiosis
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  • 87
    Publication Date: 2009-03-21
    Description: Two experiments revealed that (i) people can more accurately predict their affective reactions to a future event when they know how a neighbor in their social network reacted to the event than when they know about the event itself and (ii) people do not believe this. Undergraduates made more accurate predictions about their affective reactions to a 5-minute speed date (n = 25) and to a peer evaluation (n = 88) when they knew only how another undergraduate had reacted to these events than when they had information about the events themselves. Both participants and independent judges mistakenly believed that predictions based on information about the event would be more accurate than predictions based on information about how another person had reacted to it.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gilbert, Daniel T -- Killingsworth, Matthew A -- Eyre, Rebecca N -- Wilson, Timothy D -- New York, N.Y. -- Science. 2009 Mar 20;323(5921):1617-9. doi: 10.1126/science.1166632.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychology, Harvard University, Cambridge, MA 02138, USA. gilbert@wjh.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19299622" target="_blank"〉PubMed〈/a〉
    Keywords: *Affect ; *Emotions ; Female ; *Forecasting ; Happiness ; Humans ; Male ; Peer Group ; *Social Perception
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  • 88
    Publication Date: 2009-04-04
    Description: Sleep is universal, strictly regulated, and necessary for cognition. Why this is so remains a mystery, although recent work suggests that sleep, memory, and plasticity are linked. However, little is known about how wakefulness and sleep affect synapses. Using Western blots and confocal microscopy in Drosophila, we found that protein levels of key components of central synapses were high after waking and low after sleep. These changes were related to behavioral state rather than time of day and occurred in all major areas of the Drosophila brain. The decrease of synaptic markers during sleep was progressive, and sleep was necessary for their decline. Thus, sleep may be involved in maintaining synaptic homeostasis altered by waking activities.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2715914/" 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/PMC2715914/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gilestro, Giorgio F -- Tononi, Giulio -- Cirelli, Chiara -- DP1 OD000579/OD/NIH HHS/ -- DP1 OD000579-01/OD/NIH HHS/ -- DP1 OD000579-02/OD/NIH HHS/ -- DP1 OD000579-03/OD/NIH HHS/ -- DP1 OD000579-04/OD/NIH HHS/ -- R01 GM075315/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Apr 3;324(5923):109-12. doi: 10.1126/science.1166673.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychiatry, University of Wisconsin, Madison, WI 53719, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19342593" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Clocks ; Blotting, Western ; Brain/physiology ; Circadian Rhythm ; Drosophila Proteins/*metabolism ; Drosophila melanogaster/*physiology ; Female ; Homeostasis ; Male ; Microscopy, Confocal ; Models, Animal ; Qa-SNARE Proteins/metabolism ; Sleep/*physiology ; Sleep Deprivation ; Synapses/*physiology ; Synapsins/metabolism ; Tumor Suppressor Proteins/metabolism ; Wakefulness/*physiology
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  • 89
    Publication Date: 2009-12-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, Jon -- New York, N.Y. -- Science. 2009 Dec 11;326(5959):1476-7. doi: 10.1126/science.326.5959.1476.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20007880" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS Vaccines ; CD4-Positive T-Lymphocytes/*immunology/virology ; Female ; Genes ; HIV/immunology/physiology ; HIV Infections/*immunology ; Hemophilia A ; Homosexuality, Male ; Humans ; *Immunity, Innate ; Killer Cells, Natural/immunology ; Lymphocyte Activation ; Male ; Prostitution ; T-Lymphocytes, Regulatory/immunology
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  • 90
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-05-09
    Description: To intercept invading microbes that threaten growth and reproduction, plants evolved a sophisticated innate immune system. Recognition of specialized pathogens is mediated by resistance proteins that function as molecular switches. Pathogen perception by these multidomain proteins seems to trigger a series of conformational changes dependent on nucleotide exchange. The activated resistance protein switches on host defenses, often culminating in the death of infected cells. Given their control over life and death, activity of these proteins requires tight regulation that involves intramolecular interactions between the various domains.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Takken, F L W -- Tameling, W I L -- New York, N.Y. -- Science. 2009 May 8;324(5928):744-6. doi: 10.1126/science.1171666.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Plant Pathology, Swammerdam Institute for Life Sciences (SILS), University of Amsterdam, Post Office Box 94215, 1090 GE Amsterdam, the Netherlands. F.L.W.Takken@uva.nl〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19423813" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Diphosphate/metabolism ; Adenosine Triphosphatases/chemistry/genetics/*metabolism ; Adenosine Triphosphate/metabolism ; Host-Pathogen Interactions ; Immunity, Innate ; Plant Diseases/*immunology ; Plant Proteins/chemistry/genetics/*metabolism ; Plants/*immunology/metabolism/*microbiology ; Protein Conformation ; Protein Multimerization ; Protein Structure, Tertiary ; Signal Transduction
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  • 91
    Publication Date: 2009-10-10
    Description: The "royal disease," a blood disorder transmitted from Queen Victoria to European royal families, is a striking example of X-linked recessive inheritance. Although the disease is widely recognized to be a form of the blood clotting disorder hemophilia, its molecular basis has never been identified, and the royal disease is now likely extinct. We identified the likely disease-causing mutation by applying genomic methodologies (multiplex target amplification and massively parallel sequencing) to historical specimens from the Romanov branch of the royal family. The mutation occurs in F9, a gene on the X chromosome that encodes blood coagulation factor IX, and is predicted to alter RNA splicing and to lead to production of a truncated form of factor IX. Thus, the royal disease is the severe form of hemophilia, also known as hemophilia B or Christmas disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rogaev, Evgeny I -- Grigorenko, Anastasia P -- Faskhutdinova, Gulnaz -- Kittler, Ellen L W -- Moliaka, Yuri K -- New York, N.Y. -- Science. 2009 Nov 6;326(5954):817. doi: 10.1126/science.1180660. Epub 2009 Oct 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of Massachusetts Medical School, 303 Belmont Street, Worcester, MA 01604, USA. Evgeny.Rogaev@umassmed.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19815722" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Chromosomes, Human, X/genetics ; Codon, Nonsense ; Europe ; Factor IX/*genetics ; *Famous Persons ; Female ; Genes, X-Linked ; Genotype ; Hemophilia B/*genetics/history ; Heterozygote ; History, 19th Century ; History, 20th Century ; Humans ; Introns ; Male ; Pedigree ; *Point Mutation ; *RNA Splicing
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  • 92
    Publication Date: 2009-07-11
    Description: John Nash showed that within a complex system, individuals are best off if they make the best decision that they can, taking into account the decisions of the other individuals. Here, we investigate whether similar principles influence the evolution of signaling networks in multicellular animals. Specifically, by analyzing a set of metazoan species we observed a striking negative correlation of genomically encoded tyrosine content with biological complexity (as measured by the number of cell types in each organism). We discuss how this observed tyrosine loss correlates with the expansion of tyrosine kinases in the evolution of the metazoan lineage and how it may relate to the optimization of signaling systems in multicellular animals. We propose that this phenomenon illustrates genome-wide adaptive evolution to accommodate beneficial genetic perturbation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3066034/" 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/PMC3066034/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tan, Chris Soon Heng -- Pasculescu, Adrian -- Lim, Wendell A -- Pawson, Tony -- Bader, Gary D -- Linding, Rune -- R01 GM055040/GM/NIGMS NIH HHS/ -- R01 GM055040-11/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Sep 25;325(5948):1686-8. doi: 10.1126/science.1174301. Epub 2009 Jul 9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Samuel Lunenfeld Research Institute, Mount Sinai Hospital, Toronto M5G 1X5, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19589966" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; Animals ; *Biological Evolution ; *Evolution, Molecular ; Fungal Proteins/chemistry/metabolism ; Glycosylation ; Humans ; Methylation ; Mutation ; Phosphorylation ; Phosphotyrosine/metabolism ; Protein Structure, Tertiary ; Protein-Tyrosine Kinases/*metabolism ; Proteins/*chemistry/*metabolism ; *Selection, Genetic ; *Signal Transduction ; Substrate Specificity ; Tyrosine/*metabolism
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  • 93
    Publication Date: 2009-01-20
    Description: Vaults are among the largest cytoplasmic ribonucleoprotein particles and are found in numerous eukaryotic species. Roles in multidrug resistance and innate immunity have been suggested, but the cellular function remains unclear. We have determined the x-ray structure of rat liver vault at 3.5 angstrom resolution and show that the cage structure consists of a dimer of half-vaults, with each half-vault comprising 39 identical major vault protein (MVP) chains. Each MVP monomer folds into 12 domains: nine structural repeat domains, a shoulder domain, a cap-helix domain, and a cap-ring domain. Interactions between the 42-turn-long cap-helix domains are key to stabilizing the particle. The shoulder domain is structurally similar to a core domain of stomatin, a lipid-raft component in erythrocytes and epithelial cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tanaka, Hideaki -- Kato, Koji -- Yamashita, Eiki -- Sumizawa, Tomoyuki -- Zhou, Yong -- Yao, Min -- Iwasaki, Kenji -- Yoshimura, Masato -- Tsukihara, Tomitake -- New York, N.Y. -- Science. 2009 Jan 16;323(5912):384-8. doi: 10.1126/science.1164975.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka 565-0871, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19150846" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Crystallization ; Crystallography, X-Ray ; Dimerization ; Liver/*chemistry ; Models, Molecular ; Protein Conformation ; Protein Folding ; Protein Structure, Quaternary ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Rats ; Vault Ribonucleoprotein Particles/*chemistry
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  • 94
    Publication Date: 2009-09-26
    Description: Amyloid-beta (Abeta) accumulation in the brain extracellular space is a hallmark of Alzheimer's disease. The factors regulating this process are only partly understood. Abeta aggregation is a concentration-dependent process that is likely responsive to changes in brain interstitial fluid (ISF) levels of Abeta. Using in vivo microdialysis in mice, we found that the amount of ISF Abeta correlated with wakefulness. The amount of ISF Abeta also significantly increased during acute sleep deprivation and during orexin infusion, but decreased with infusion of a dual orexin receptor antagonist. Chronic sleep restriction significantly increased, and a dual orexin receptor antagonist decreased, Abeta plaque formation in amyloid precursor protein transgenic mice. Thus, the sleep-wake cycle and orexin may play a role in the pathogenesis of Alzheimer's disease.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2789838/" 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/PMC2789838/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kang, Jae-Eun -- Lim, Miranda M -- Bateman, Randall J -- Lee, James J -- Smyth, Liam P -- Cirrito, John R -- Fujiki, Nobuhiro -- Nishino, Seiji -- Holtzman, David M -- AG025824/AG/NIA NIH HHS/ -- AG029524/AG/NIA NIH HHS/ -- AG030946/AG/NIA NIH HHS/ -- K01 AG029524/AG/NIA NIH HHS/ -- K01 AG029524-03/AG/NIA NIH HHS/ -- K23 AG030946/AG/NIA NIH HHS/ -- K23 AG030946-03/AG/NIA NIH HHS/ -- MH072525/MH/NIMH NIH HHS/ -- NS065667/NS/NINDS NIH HHS/ -- P30 DK056341/DK/NIDDK NIH HHS/ -- P30 DK056341-09/DK/NIDDK NIH HHS/ -- P30 NS057105/NS/NINDS NIH HHS/ -- P30 NS057105-04/NS/NINDS NIH HHS/ -- P50 AG005681/AG/NIA NIH HHS/ -- R01 AG025824/AG/NIA NIH HHS/ -- R01 AG025824-03/AG/NIA NIH HHS/ -- R01 MH072525/MH/NIMH NIH HHS/ -- R01 MH072525-04/MH/NIMH NIH HHS/ -- R01 NS065667/NS/NINDS NIH HHS/ -- R01 NS065667-02/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2009 Nov 13;326(5955):1005-7. doi: 10.1126/science.1180962. Epub 2009 Sep 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, Washington University, St. Louis, MO 63110, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19779148" target="_blank"〉PubMed〈/a〉
    Keywords: Acetamides/pharmacology ; Alzheimer Disease/metabolism/*physiopathology ; Amyloid beta-Peptides/cerebrospinal fluid/*metabolism ; Animals ; Antigens, Surface/metabolism ; Circadian Rhythm ; Disease Models, Animal ; Extracellular Fluid/*metabolism ; Female ; Hippocampus/*metabolism ; Humans ; Intracellular Signaling Peptides and Proteins/administration & dosage/*metabolism ; Isoquinolines/pharmacology ; Light ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Neuropeptides/administration & dosage/*metabolism ; Orexin Receptors ; Orexins ; Receptors, Cell Surface/metabolism ; Receptors, G-Protein-Coupled/metabolism ; Receptors, Neuropeptide/metabolism ; Signal Transduction ; *Sleep ; Sleep Deprivation ; *Wakefulness
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  • 95
    Publication Date: 2009-02-07
    Description: Speciation often involves the evolution of incompatible gene interactions that cause sterility or lethality in hybrids between populations. These so-called hybrid incompatibilities occur between two or more functionally divergent loci. We show that the nucleoporin 160kDa (Nup160) gene of the fruitfly Drosophila simulans is incompatible with one or more factors on the D. melanogaster X chromosome, causing hybrid lethality. Nup160 encodes a nuclear pore complex protein and shows evidence of adaptive evolution. Furthermore, the protein encoded by Nup160 directly interacts with that of another hybrid lethality gene, Nup96, indicating that at least two lethal hybrid incompatibility genes have evolved as byproducts of divergent coevolution among interacting components of the Drosophila nuclear pore complex.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2826207/" 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/PMC2826207/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tang, Shanwu -- Presgraves, Daven C -- R01 GM079543/GM/NIGMS NIH HHS/ -- R01 GM079543-01A1/GM/NIGMS NIH HHS/ -- R01-GM079543/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Feb 6;323(5915):779-82. doi: 10.1126/science.1169123.〈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/19197064" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromosome Mapping ; Crosses, Genetic ; Drosophila/*genetics/*physiology ; Drosophila Proteins/*genetics/metabolism ; Drosophila melanogaster/genetics/*physiology ; *Evolution, Molecular ; Female ; Genes, Insect ; *Genetic Speciation ; Hybridization, Genetic ; Male ; Molecular Sequence Data ; Mutation ; Nuclear Pore Complex Proteins/*genetics/metabolism ; Selection, Genetic ; X Chromosome/*genetics
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  • 96
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-10-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Root-Bernstein, Robert -- New York, N.Y. -- Science. 2009 Oct 16;326(5951):365-6. doi: 10.1126/science.326_365c.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, Michigan State University, East Lansing, MI 48824, USA. rootbern@msu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19833941" target="_blank"〉PubMed〈/a〉
    Keywords: *Art ; Female ; Humans ; Male ; Science/*education ; *Space Perception ; *Teaching
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  • 97
    Publication Date: 2009-12-19
    Description: Inward-rectifier potassium (K+) channels conduct K+ ions most efficiently in one direction, into the cell. Kir2 channels control the resting membrane voltage in many electrically excitable cells, and heritable mutations cause periodic paralysis and cardiac arrhythmia. We present the crystal structure of Kir2.2 from chicken, which, excluding the unstructured amino and carboxyl termini, is 90% identical to human Kir2.2. Crystals containing rubidium (Rb+), strontium (Sr2+), and europium (Eu3+) reveal binding sites along the ion conduction pathway that are both conductive and inhibitory. The sites correlate with extensive electrophysiological data and provide a structural basis for understanding rectification. The channel's extracellular surface, with large structured turrets and an unusual selectivity filter entryway, might explain the relative insensitivity of eukaryotic inward rectifiers to toxins. These same surface features also suggest a possible approach to the development of inhibitory agents specific to each member of the inward-rectifier K+ channel family.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2819303/" 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/PMC2819303/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tao, Xiao -- Avalos, Jose L -- Chen, Jiayun -- MacKinnon, Roderick -- P30 EB009998/EB/NIBIB NIH HHS/ -- R01 GM043949/GM/NIGMS NIH HHS/ -- R01 GM043949-10/GM/NIGMS NIH HHS/ -- R01 GM043949-11/GM/NIGMS NIH HHS/ -- R01 GM043949-12/GM/NIGMS NIH HHS/ -- R01 GM043949-13/GM/NIGMS NIH HHS/ -- R01 GM043949-14/GM/NIGMS NIH HHS/ -- R01 GM043949-15/GM/NIGMS NIH HHS/ -- R01 GM043949-16/GM/NIGMS NIH HHS/ -- R01 GM043949-17/GM/NIGMS NIH HHS/ -- R01 GM043949-18/GM/NIGMS NIH HHS/ -- R01 GM043949-19/GM/NIGMS NIH HHS/ -- R01 GM043949-20/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Dec 18;326(5960):1668-74. doi: 10.1126/science.1180310.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Neurobiology and Biophysics, Rockefeller University, Howard Hughes Medical Institute, 1230 York Avenue, New York, NY 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20019282" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Amino Acid Sequence ; Animals ; Binding Sites ; Chickens ; Cloning, Molecular ; Crystallography, X-Ray ; Europium/metabolism ; Hydrogen Bonding ; Hydrophobic and Hydrophilic Interactions ; Models, Molecular ; Molecular Sequence Data ; Oocytes ; Patch-Clamp Techniques ; Potassium/metabolism ; Potassium Channel Blockers/pharmacology ; Potassium Channels, Inwardly Rectifying/antagonists & ; inhibitors/*chemistry/metabolism ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Protein Subunits/chemistry ; Rubidium/metabolism ; Sequence Alignment ; Strontium/metabolism ; Xenopus laevis
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  • 98
    Publication Date: 2009-07-11
    Description: The turtle shell offers a fascinating case study of vertebrate evolution, based on the modification of a common body plan. The carapace is formed from ribs, which encapsulate the scapula; this stands in contrast to the typical amniote body plan and serves as a key to understanding turtle evolution. Comparative analyses of musculoskeletal development between the Chinese soft-shelled turtle and other amniotes revealed that initial turtle development conforms to the amniote pattern; however, during embryogenesis, lateral rib growth results in a shift of elements. In addition, some limb muscles establish new turtle-specific attachments associated with carapace formation. We propose that the evolutionary origin of the turtle body plan results from heterotopy based on folding and novel connectivities.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nagashima, Hiroshi -- Sugahara, Fumiaki -- Takechi, Masaki -- Ericsson, Rolf -- Kawashima-Ohya, Yoshie -- Narita, Yuichi -- Kuratani, Shigeru -- New York, N.Y. -- Science. 2009 Jul 10;325(5937):193-6. doi: 10.1126/science.1173826.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory for Evolutionary Morphology, RIKEN Center for Developmental Biology, 2-2-3 Minatojima-minami, Kobe 650-0047, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19590000" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Body Patterning ; Chick Embryo ; Embryo, Nonmammalian/anatomy & histology ; Embryonic Development ; Mice ; Muscle Development ; Muscle, Skeletal/anatomy & histology/*embryology ; Musculoskeletal Development ; Ribs/anatomy & histology/*embryology ; Scapula/anatomy & histology/*embryology ; Turtles/*anatomy & histology/*embryology
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  • 99
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-09-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Collins, Mark O -- New York, N.Y. -- Science. 2009 Sep 25;325(5948):1635-6. doi: 10.1126/science.1180331.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Proteomic Mass Spectrometry Group, Wellcome Trust Sanger Institute, Hinxton, Cambridge CB10 1SA, UK. moc@sanger.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19779182" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; *Biological Evolution ; CDC2 Protein Kinase/antagonists & inhibitors/metabolism ; *Evolution, Molecular ; Fungi/metabolism ; Phosphorylation ; Protein Binding ; Protein Folding ; Protein Structure, Tertiary ; Protein-Serine-Threonine Kinases/metabolism ; Protein-Tyrosine Kinases/metabolism ; Proteins/*chemistry/*metabolism ; Serine/metabolism ; *Signal Transduction ; Threonine/metabolism ; Tyrosine/metabolism
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  • 100
    Publication Date: 2009-03-17
    Description: Many metabolic and physiological processes display circadian oscillations. We have shown that the core circadian regulator, CLOCK, is a histone acetyltransferase whose activity is counterbalanced by the nicotinamide adenine dinucleotide (NAD+)-dependent histone deacetylase SIRT1. Here we show that intracellular NAD+ levels cycle with a 24-hour rhythm, an oscillation driven by the circadian clock. CLOCK:BMAL1 regulates the circadian expression of NAMPT (nicotinamide phosphoribosyltransferase), an enzyme that provides a rate-limiting step in the NAD+ salvage pathway. SIRT1 is recruited to the Nampt promoter and contributes to the circadian synthesis of its own coenzyme. Using the specific inhibitor FK866, we demonstrated that NAMPT is required to modulate circadian gene expression. Our findings in mouse embryo fibroblasts reveal an interlocked transcriptional-enzymatic feedback loop that governs the molecular interplay between cellular metabolism and circadian rhythms.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nakahata, Yasukazu -- Sahar, Saurabh -- Astarita, Giuseppe -- Kaluzova, Milota -- Sassone-Corsi, Paolo -- R01-GM081634/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 May 1;324(5927):654-7. doi: 10.1126/science.1170803. Epub 2009 Mar 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, School of Medicine, University of California, Irvine, Irvine, CA 92697, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19286518" target="_blank"〉PubMed〈/a〉
    Keywords: ARNTL Transcription Factors ; Acrylamides/pharmacology ; Animals ; Basic Helix-Loop-Helix Transcription Factors/metabolism ; Biological Clocks ; CLOCK Proteins ; Cell Line ; Chromatin Assembly and Disassembly ; *Circadian Rhythm ; Cytokines/antagonists & inhibitors/genetics/*metabolism ; Enzyme Inhibitors/pharmacology ; *Feedback, Physiological ; *Gene Expression Regulation ; Male ; Mice ; Mice, Inbred BALB C ; Mice, Knockout ; NAD/*metabolism ; Niacinamide/metabolism ; Nicotinamide Phosphoribosyltransferase/antagonists & ; inhibitors/genetics/*metabolism ; Piperidines/pharmacology ; Promoter Regions, Genetic ; Sirtuin 1 ; Sirtuins/*metabolism ; Trans-Activators/genetics/*metabolism ; Transcription, Genetic
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