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  • Female  (1,117)
  • Cloning, Molecular  (501)
  • American Association for the Advancement of Science (AAAS)  (1,571)
  • American Meteorological Society
  • 1995-1999  (869)
  • 1990-1994  (702)
  • 1935-1939
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  • American Association for the Advancement of Science (AAAS)  (1,571)
  • American Meteorological Society
  • Springer  (4)
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  • 1
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    'Monogamous' gibbons really swing (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-05-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibbons, A -- New York, N.Y. -- Science. 1998 May 1;280(5364):677-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9599145" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Behavior, Animal ; Female ; *Hylobates ; Male ; *Sexual Behavior, Animal ; *Social Behavior
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
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    Dendritic integration and its role in computing image velocity (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-09-22
    Description: The mechanisms underlying visual motion detection can be studied simultaneously in different cell compartments in vivo by using calcium as a reporter of the spatiotemporal activity distribution in single motion-sensitive cells of the fly. As predicted by the Reichardt model, local dendritic calcium signals are found to indicate the direction and velocity of pattern motion but are corrupted by spatial pattern properties. The latter are canceled out by spatial integration, thus leading to a purely directional selective output signal in the axon. These findings attribute a specific computational task to the dendrites of visual interneurons and imply a functional interpretation of dendritic morphology.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Single, S -- Borst, A -- New York, N.Y. -- Science. 1998 Sep 18;281(5384):1848-50.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Friedrich-Miescher-Laboratory of the Max-Planck-Society, Spemannstrasse 37-39, D-72076 Tuebingen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9743497" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/metabolism/physiology ; Calcium/*metabolism ; Calcium Channels/metabolism ; Dendrites/metabolism/*physiology/ultrastructure ; Diptera/physiology ; Female ; Interneurons/physiology ; Membrane Potentials ; *Motion Perception ; Photoreceptor Cells, Invertebrate/*physiology
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    Anthropologists probe genes, brains at annual meeting (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-05-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibbons, A -- New York, N.Y. -- Science. 1998 Apr 17;280(5362):380-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9575083" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Anthropology, Physical ; Biological Evolution ; Brain/*anatomy & histology ; Computer Simulation ; DNA, Mitochondrial/genetics ; Female ; *Genetics, Population ; *Hinduism/history ; History, Ancient ; Hominidae/*anatomy & histology ; Humans ; India ; Male ; Models, Anatomic ; Y Chromosome/genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Bid for better beef gives Japan a leg up on cattle (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-01-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Normile, D -- New York, N.Y. -- Science. 1998 Dec 11;282(5396):1975-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9874644" target="_blank"〉PubMed〈/a〉
    Keywords: Animal Husbandry/*methods ; Animals ; Blastocyst ; Cattle/embryology/*genetics ; Cell Differentiation ; Cells, Cultured ; *Cloning, Organism ; Embryo Transfer/veterinary ; Fallopian Tubes/cytology ; Female ; Japan ; *Nuclear Transfer Techniques ; Oocytes ; Ovarian Follicle/cytology ; Pregnancy
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    Mismatch repair co-opted by hypermutation (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-21
    Description: Mice homozygous for a disrupted allele of the mismatch repair gene Pms2 have a mutator phenotype. When this allele is crossed into quasi-monoclonal (QM) mice, which have a very limited B cell repertoire, homozygotes have fewer somatic mutations at the immunoglobulin heavy chain and lambda chain loci than do heterozygotes or wild-type QM mice. That is, mismatch repair seems to contribute to somatic hypermutation rather than stifling it. It is suggested that at immunoglobulin loci in hypermutable B cells, mismatched base pairs are "corrected" according to the newly synthesized DNA strand, thereby fixing incipient mutations instead of eliminating them.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cascalho, M -- Wong, J -- Steinberg, C -- Wabl, M -- 1R01 GM37699/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1998 Feb 20;279(5354):1207-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, University of California, San Francisco, CA 94143-0670, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9469811" target="_blank"〉PubMed〈/a〉
    Keywords: *Adenosine Triphosphatases ; Alleles ; Amino Acid Sequence ; Animals ; B-Lymphocytes/immunology ; Base Composition ; Base Sequence ; Cloning, Molecular ; Crosses, Genetic ; *DNA Repair ; *DNA Repair Enzymes ; *DNA-Binding Proteins ; Female ; Gene Rearrangement ; *Genes, Immunoglobulin ; Heterozygote ; Immunoglobulin Heavy Chains/chemistry/genetics ; Immunoglobulin Variable Region/chemistry/*genetics ; Immunoglobulin lambda-Chains/chemistry/genetics ; Male ; Mice ; Mice, Knockout ; Molecular Sequence Data ; *Mutation ; Proteins/*genetics/physiology
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Visual input to the efferent control system of a fly's "gyroscope" (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-05-02
    Description: Dipterous insects (the true flies) have a sophisticated pair of equilibrium organs called halteres that evolved from hind wings. The halteres are sensitive to Coriolis forces that result from angular rotations of the body and mediate corrective reflexes during flight. Like the aerodynamically functional fore wings, the halteres beat during flight and are equipped with their own set of control muscles. It is shown that motoneurons innervating muscles of the haltere receive strong excitatory input from directionally sensitive visual interneurons. Visually guided flight maneuvers of flies may be mediated in part by efferent modulation of hard-wired equilibrium reflexes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chan, W P -- Prete, F -- Dickinson, M H -- New York, N.Y. -- Science. 1998 Apr 10;280(5361):289-92.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Integrative Biology, University of California, Berkeley, CA 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9535659" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Diptera/anatomy & histology/*physiology ; Female ; Flight, Animal/*physiology ; Interneurons/*physiology ; Male ; Mechanoreceptors/physiology ; Motor Neurons/*physiology ; Muscle, Skeletal/innervation/physiology ; Photoreceptor Cells, Invertebrate/*physiology ; Reflex/physiology ; Wings, Animal/anatomy & histology/innervation/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    FADD: essential for embryo development and signaling from some, but not all, inducers of apoptosis (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-04-16
    Description: FADD (also known as Mort-1) is a signal transducer downstream of cell death receptor CD95 (also called Fas). CD95, tumor necrosis factor receptor type 1 (TNFR-1), and death receptor 3 (DR3) did not induce apoptosis in FADD-deficient embryonic fibroblasts, whereas DR4, oncogenes E1A and c-myc, and chemotherapeutic agent adriamycin did. Mice with a deletion in the FADD gene did not survive beyond day 11.5 of embryogenesis; these mice showed signs of cardiac failure and abdominal hemorrhage. Chimeric embryos showing a high contribution of FADD null mutant cells to the heart reproduce the phenotype of FADD-deficient mutants. Thus, not only death receptors, but also receptors that couple to developmental programs, may use FADD for signaling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yeh, W C -- de la Pompa, J L -- McCurrach, M E -- Shu, H B -- Elia, A J -- Shahinian, A -- Ng, M -- Wakeham, A -- Khoo, W -- Mitchell, K -- El-Deiry, W S -- Lowe, S W -- Goeddel, D V -- Mak, T W -- CA13106/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1998 Mar 20;279(5358):1954-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Amgen Institute, University of Toronto, Toronto, Ontario, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9506948" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptor Proteins, Signal Transducing ; Animals ; Antigens, CD95/genetics/physiology ; *Apoptosis ; Carrier Proteins/genetics/*physiology ; Cell Transformation, Neoplastic ; Cells, Cultured ; Doxorubicin/pharmacology ; *Embryonic and Fetal Development ; Endothelium, Vascular/embryology ; Fas-Associated Death Domain Protein ; Female ; Gene Expression ; Gene Targeting ; Heart/*embryology ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Mutation ; Oncogenes ; Receptors, Tumor Necrosis Factor/genetics/physiology ; Signal Transduction ; Tumor Necrosis Factor-alpha/pharmacology
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    Actin mutations in dilated cardiomyopathy, a heritable form of heart failure (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-05-23
    Description: To test the hypothesis that actin dysfunction leads to heart failure, patients with hereditary idiopathic dilated cardiomyopathy (IDC) were examined for mutations in the cardiac actin gene (ACTC). Missense mutations in ACTC that cosegregate with IDC were identified in two unrelated families. Both mutations affect universally conserved amino acids in domains of actin that attach to Z bands and intercalated discs. Coupled with previous data showing that dystrophin mutations also cause dilated cardiomyopathy, these results raise the possibility that defective transmission of force in cardiac myocytes is a mechanism underlying heart failure.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Olson, T M -- Michels, V V -- Thibodeau, S N -- Tai, Y S -- Keating, M T -- 5-P50-HL-53773/HL/NHLBI NIH HHS/ -- M01-RR00064/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1998 May 1;280(5364):750-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatrics, Division of Cardiology, University of Utah Health Sciences Center, Salt Lake City, UT 84112, USA. timo@howard.genetics.utah.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9563954" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/chemistry/*genetics/physiology ; Adolescent ; Adult ; Cardiomyopathy, Dilated/*genetics/metabolism/pathology ; Child ; Child, Preschool ; Chromosomes, Human, Pair 15 ; Exons ; Female ; Heart/physiopathology ; Humans ; Male ; *Mutation ; Myocardium/chemistry/pathology ; Pedigree ; Phenotype ; Polymorphism, Single-Stranded Conformational ; Protein Conformation ; Sarcomeres/physiology
    Print ISSN: 0036-8075
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  • 9
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    Ribozyme-mediated repair of sickle beta-globin mRNAs in erythrocyte precursors (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-06-11
    Description: Sickle cell anemia is the most common heritable hematological disease, yet no curative treatment exists for this disorder. Moreover, the intricacies of globin gene expression have made the development of treatments for hemoglobinopathies based on gene therapy difficult. An alternative genetic approach to sickle cell therapy is based on RNA repair. A trans-splicing group I ribozyme was used to alter mutant beta-globin transcripts in erythrocyte precursors derived from peripheral blood from individuals with sickle cell disease. Sickle beta-globin transcripts were converted into messenger RNAs encoding the anti-sickling protein gamma-globin. These results suggest that RNA repair may become a useful approach in the treatment of genetic disorders.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lan, N -- Howrey, R P -- Lee, S W -- Smith, C A -- Sullenger, B A -- HL57606/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1998 Jun 5;280(5369):1593-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Genetic and Cellular Therapies, Department of Surgery, Duke University Medical Center, Durham, NC 27710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9616120" target="_blank"〉PubMed〈/a〉
    Keywords: Anemia, Sickle Cell/*blood/therapy ; Cloning, Molecular ; Erythroid Precursor Cells/*metabolism ; Exons ; Fetal Blood ; Genetic Therapy ; Globins/*genetics ; Humans ; Mutation ; Polymerase Chain Reaction ; *RNA Splicing ; RNA, Catalytic/genetics/*metabolism ; RNA, Messenger/chemistry/*genetics/metabolism ; Transfection ; Uridine/metabolism
    Print ISSN: 0036-8075
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  • 10
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    Progress in progressive hearing loss (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-04-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Steel, K P -- New York, N.Y. -- Science. 1998 Mar 20;279(5358):1870-1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council, Institute of Hearing Research, Nottingham NG7 2RD, UK. karen@ihr.mrc.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9537904" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptor Proteins, Signal Transducing ; Animals ; Carrier Proteins/genetics/physiology ; Cell Differentiation ; Chromosome Mapping ; Chromosomes, Human, Pair 5/genetics ; Deafness/*genetics ; Dyneins ; Female ; Gene Targeting ; Genes, Dominant ; Hair Cells, Auditory/physiology ; Hearing Loss, Sensorineural/*genetics ; Homeodomain Proteins/*genetics/metabolism ; Humans ; Male ; Mice ; Myosins/genetics/physiology ; Pedigree ; Sequence Deletion ; Transcription Factor Brn-3C ; Transcription Factors/*genetics/metabolism/physiology
    Print ISSN: 0036-8075
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  • 11
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    Cloned transgenic calves produced from nonquiescent fetal fibroblasts (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-06-20
    Description: An efficient system for genetic modification and large-scale cloning of cattle is of importance for agriculture, biotechnology, and human medicine. Here, actively dividing fetal fibroblasts were genetically modified with a marker gene, a clonal line was selected, and the cells were fused to enucleated mature oocytes. Out of 28 embryos transferred to 11 recipient cows, three healthy, identical, transgenic calves were generated. Furthermore, the life-span of near senescent fibroblasts could be extended by nuclear transfer, as indicated by population doublings in fibroblast lines derived from a 40-day-old fetal clone. With the ability to extend the life-span of these primary cultured cells, this system would be useful for inducing complex genetic modifications in cattle.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cibelli, J B -- Stice, S L -- Golueke, P J -- Kane, J J -- Jerry, J -- Blackwell, C -- Ponce de Leon, F A -- Robl, J M -- New York, N.Y. -- Science. 1998 May 22;280(5367):1256-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA 01003, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9596577" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Animals, Genetically Modified ; Blastocyst ; Cattle/embryology/*genetics ; Cell Aging ; Cell Division ; Cell Nucleus/genetics ; Cells, Cultured ; Clone Cells ; *Cloning, Organism ; Embryo Transfer ; Female ; Fetus/cytology ; Fibroblasts/*cytology ; G1 Phase ; Male ; Nuclear Transfer Techniques ; Oocytes/cytology ; Transfection ; Transgenes
    Print ISSN: 0036-8075
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  • 12
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    Protein kinase B kinases that mediate phosphatidylinositol 3,4,5-trisphosphate-dependent activation of protein kinase B (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-02-21
    Description: Protein kinase B (PKB) is activated in response to phosphoinositide 3-kinases and their lipid products phosphatidylinositol 3,4, 5-trisphosphate [PtdIns(3,4,5)P3] and PtdIns(3,4)P2 in the signaling pathways used by a wide variety of growth factors, antigens, and inflammatory stimuli. PKB is a direct target of these lipids, but this regulation is complex. The lipids can bind to the pleckstrin homologous domain of PKB, causing its translocation to the membrane, and also enable upstream, Thr308-directed kinases to phosphorylate and activate PKB. Four isoforms of these PKB kinases were purified from sheep brain. They bound PtdIns(3,4,5)P3 and associated with lipid vesicles containing it. These kinases contain an NH2-terminal catalytic domain and a COOH-terminal pleckstrin homologous domain, and their heterologous expression augments receptor activation of PKB, which suggests they are the primary signal transducers that enable PtdIns(3,4,5)P3 or PtdIns- (3,4)P2 to activate PKB and hence to control signaling pathways regulating cell survival, glucose uptake, and glycogen metabolism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stephens, L -- Anderson, K -- Stokoe, D -- Erdjument-Bromage, H -- Painter, G F -- Holmes, A B -- Gaffney, P R -- Reese, C B -- McCormick, F -- Tempst, P -- Coadwell, J -- Hawkins, P T -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1998 Jan 30;279(5351):710-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Inositide Laboratory, The Babraham Institute, Babraham, Cambridge CB2 4AT, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9445477" target="_blank"〉PubMed〈/a〉
    Keywords: 3-Phosphoinositide-Dependent Protein Kinases ; Alternative Splicing ; Amino Acid Sequence ; Animals ; Cell Line ; Cell Membrane/enzymology ; Cloning, Molecular ; DNA, Complementary ; Drosophila ; Drosophila Proteins ; Enzyme Activation ; Humans ; Liposomes/metabolism ; Molecular Sequence Data ; Open Reading Frames ; Phosphatidylinositol Phosphates/*metabolism ; Phosphorylation ; Platelet-Derived Growth Factor/pharmacology ; Protein-Serine-Threonine Kinases/chemistry/genetics/isolation & ; purification/*metabolism ; Proto-Oncogene Proteins/*metabolism ; Proto-Oncogene Proteins c-akt ; Rats ; Recombinant Proteins/metabolism ; Sheep ; *Signal Transduction
    Print ISSN: 0036-8075
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  • 13
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    Human monogamy (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-12-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clark, G A -- New York, N.Y. -- Science. 1998 Nov 6;282(5391):1047-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9841447" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Culture ; Female ; Hominidae/psychology ; Humans ; Male ; *Sexual Behavior ; Sexual Behavior, Animal ; *Sexual Partners
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    Electronic ISSN: 1095-9203
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  • 14
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    Classical conditioning and brain systems: the role of awareness (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-04-29
    Description: Classical conditioning of the eye-blink response, perhaps the best studied example of associative learning in vertebrates, is relatively automatic and reflexive, and with the standard procedure (simple delay conditioning), it is intact in animals with hippocampal lesions. In delay conditioning, a tone [the conditioned stimulus (CS)] is presented just before an air puff to the eye [the unconditioned stimulus (US)]. The US is then presented, and the two stimuli coterminate. In trace conditioning, a variant of the standard paradigm, a short interval (500 to 1000 ms) is interposed between the offset of the CS and the onset of the US. Animals with hippocampal lesions fail to acquire trace conditioning. Amnesic patients with damage to the hippocampal formation and normal volunteers were tested on two versions of delay conditioning and two versions of trace conditioning and then assessed for the extent to which they became aware of the temporal relationship between the CS and the US. Amnesic patients acquired delay conditioning at a normal rate but failed to acquire trace conditioning. For normal volunteers, awareness was unrelated to successful delay conditioning but was a prerequisite for successful trace conditioning. Trace conditioning is hippocampus dependent because, as in other tasks of declarative memory, conscious knowledge must be acquired across the training session. Trace conditioning may provide a means for studying awareness in nonhuman animals, in the context of current ideas about multiple memory systems and the function of the hippocampus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clark, R E -- Squire, L R -- 24600/PHS HHS/ -- New York, N.Y. -- Science. 1998 Apr 3;280(5360):77-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychiatry, University of California, San Diego, La Jolla, CA 92093, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9525860" target="_blank"〉PubMed〈/a〉
    Keywords: Aged ; Amnesia/*physiopathology/psychology ; Awareness/*physiology ; Blinking ; Cerebellum/physiology/physiopathology ; Conditioning, Classical/*physiology ; Female ; Hippocampus/*physiology/physiopathology ; Humans ; Learning/physiology ; Male ; Memory/*physiology ; Middle Aged ; Neocortex/physiology/physiopathology
    Print ISSN: 0036-8075
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  • 15
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    Regulation of the proinflammatory effects of Fas ligand (CD95L) (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-11-30
    Description: Fas ligand (CD95L) inhibits T cell function in immune-privileged organs such as the eye and testis, yet in most tissues CD95L expression induces potent inflammatory responses. With a stably transfected colon carcinoma cell line, CT26-CD95L, the molecular basis for these divergent responses was defined. When injected subcutaneously, rejection of CT26-CD95L was caused by neutrophils activated by CD95L. CT26-CD95L survived in the intraocular space because of the presence of transforming growth factor-beta (TGF-beta), which inhibited neutrophil activation. Providing TGF-beta to subcutaneous sites protected against tumor rejection. Thus, these cytokines together generate a microenvironment that promotes immunologic tolerance, which may aid in the amelioration of allograft rejection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, J J -- Sun, Y -- Nabel, G J -- New York, N.Y. -- Science. 1998 Nov 27;282(5394):1714-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, University of Michigan Medical Center, Departments of Internal Medicine and Biological Chemistry, 1150 West Medical Center Drive, 4520 Medical Science Research Building I, Ann Arbor, MI 48109-0650, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9831564" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anterior Chamber ; Apoptosis ; Calcium-Calmodulin-Dependent Protein Kinases/antagonists & inhibitors/metabolism ; Cytotoxicity, Immunologic ; Fas Ligand Protein ; Female ; Graft Rejection ; Humans ; Immune Tolerance ; Inflammation/*immunology ; Jurkat Cells ; Membrane Glycoproteins/*physiology ; Mice ; Mice, Inbred BALB C ; *Mitogen-Activated Protein Kinases ; Neoplasm Transplantation ; Neoplasms, Experimental/*immunology/pathology ; *Neutrophil Activation ; Neutrophils/immunology ; Transfection ; Transforming Growth Factor beta/pharmacology ; Tumor Cells, Cultured ; p38 Mitogen-Activated Protein Kinases
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    Sex and conflict (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-09-25
    Description: Evolutionary conflict occurs when the deterministic spread of an allele lowers the fitness either of its bearer or of other individuals in the population, leading to selection for suppressors. Sex promotes conflict because associations between alleles are temporary. Differing selection on males and females, sexual selection, and differences in transmission patterns between classes of nuclear and cytoplasmic genes can all give rise to conflict. Inert Y chromosomes, uniparental inheritance of cytoplasmic genes, mating strains and sexes, and many features of sexual behavior may have evolved in part as a result of evolutionary conflict. Estimates of its quantitative importance, however, are still needed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Partridge, L -- Hurst, L D -- New York, N.Y. -- Science. 1998 Sep 25;281(5385):2003-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Galton Laboratory, Department of Biology, University College London, London NW1 2HE, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9748155" target="_blank"〉PubMed〈/a〉
    Keywords: *Alleles ; Animals ; *Biological Evolution ; Female ; Male ; Meiosis ; Organelles/genetics ; *Selection, Genetic ; *Sex ; Sex Characteristics ; Sexual Behavior, Animal ; Y Chromosome/genetics
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    Elimination of syphilis in the United States (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-08-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉St Louis, M E -- Wasserheit, J N -- New York, N.Y. -- Science. 1998 Jul 17;281(5375):353-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Center for HIV, STD, and TB Prevention, Centers for Disease Control and Prevention, Mailstop E-02, Atlanta, GA 30333, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9705711" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS-Related Opportunistic Infections/prevention & control ; Adult ; African Americans ; Disease Outbreaks ; Female ; Genome, Bacterial ; HIV Infections/transmission ; Humans ; Infant, Newborn ; Male ; Public Health Practice ; Socioeconomic Factors ; Syphilis/complications/epidemiology/*prevention & control ; Syphilis, Congenital/epidemiology ; Treponema pallidum/genetics ; United States/epidemiology
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  • 18
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    Heat shock protein mutes genetic changes (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-01-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1998 Dec 4;282(5395):1796.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9874626" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Crosses, Genetic ; Drosophila/*genetics ; Female ; *Genes, Insect ; HSP90 Heat-Shock Proteins/genetics/*physiology ; Insect Proteins/genetics/physiology ; Male ; *Mutation ; Temperature
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  • 19
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    Cocaine exposure and children: the meaning of subtle effects (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-12-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lester, B M -- LaGasse, L L -- Seifer, R -- U10 DA024119/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 1998 Oct 23;282(5389):633-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Brown University School of Medicine, Providence, RI 02905-2499, USA. barryvlester@brown.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9841414" target="_blank"〉PubMed〈/a〉
    Keywords: Child ; Child Language ; Cocaine/*adverse effects ; Cocaine-Related Disorders/therapy ; Cognition Disorders/*chemically induced/prevention & control ; Costs and Cost Analysis ; Education, Special/economics ; Female ; Humans ; Intelligence/*drug effects ; Language Disorders/*chemically induced/prevention & control ; Meta-Analysis as Topic ; Pregnancy ; Pregnancy Complications/therapy ; *Prenatal Exposure Delayed Effects
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  • 20
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    Versatile gene uptake system found in cholera bacterium (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-05-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1998 Apr 24;280(5363):521-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9575097" target="_blank"〉PubMed〈/a〉
    Keywords: Cloning, Molecular ; Drug Resistance, Microbial/genetics ; Escherichia coli/genetics/pathogenicity ; *Genes, Bacterial ; Integrases/*genetics/metabolism ; *Recombination, Genetic ; *Repetitive Sequences, Nucleic Acid ; Vibrio cholerae/enzymology/*genetics/pathogenicity ; Virulence/genetics
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  • 21
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    Postdoctoral patterns, career advancement, and problems (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-09-08
    Description: Postdoctoral appointments can have different functions and meanings, depending on the field and whether the postdoc is a man or a woman. The Ph.D.'s-Ten Years Later study confirmed that in biochemistry, the postdoc, not the Ph.D., has become the general proving ground for excellence both in academia and industry. Because they spent a longer time in these "mandatory" postdocs, biochemists had the largest proportion of untenured faculty 10 to 13 years after the Ph. D. In mathematics, where substantially fewer postdoctoral positions are available, Ph.D.'s taking postdocs are more likely to obtain faculty positions, but this is true only for men. University administrators should be accountable for monitoring the total time spent in these positions and should provide administrative assistance for skills training, career growth, and the job search. In addition, creative solutions concerning the dual-career couple phenomenon are necessary.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nerad, M -- Cerny, J -- New York, N.Y. -- Science. 1999 Sep 3;285(5433):1533-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Graduate Division, University of California, Berkeley, 424 Sproul Hall, Berkeley, CA 94720-5900, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10477510" target="_blank"〉PubMed〈/a〉
    Keywords: *Biochemistry/education ; *Career Mobility ; *Education, Graduate ; Employment ; Faculty ; *Fellowships and Scholarships ; Female ; Humans ; Male ; *Mathematics ; Salaries and Fringe Benefits ; Societies, Scientific ; Time Factors ; United States ; Universities
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  • 22
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    An area specialized for spatial working memory in human frontal cortex (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-21
    Description: Working memory is the process of maintaining an active representation of information so that it is available for use. In monkeys, a prefrontal cortical region important for spatial working memory lies in and around the principal sulcus, but in humans the location, and even the existence, of a region for spatial working memory is in dispute. By using functional magnetic resonance imaging in humans, an area in the superior frontal sulcus was identified that is specialized for spatial working memory. This area is located more superiorly and posteriorly in the human than in the monkey brain, which may explain why it was not recognized previously.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Courtney, S M -- Petit, L -- Maisog, J M -- Ungerleider, L G -- Haxby, J V -- New York, N.Y. -- Science. 1998 Feb 27;279(5355):1347-51.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Brain and Cognition, National Institute of Mental Health, Building 10, Room 4C104, 10 Center Drive, Bethesda, MD 20892-1366, USA. Susan_Courtney@nih.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9478894" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; *Brain Mapping ; Female ; Frontal Lobe/anatomy & histology/*physiology ; Haplorhini ; Humans ; Magnetic Resonance Imaging ; Male ; *Memory, Short-Term ; Prefrontal Cortex/anatomy & histology/physiology ; Psychomotor Performance ; Saccades ; *Space Perception
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  • 23
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    Redesigning enzyme topology by directed evolution (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-04-16
    Description: Genetic selection was exploited in combination with structure-based design to transform an intimately entwined, dimeric chorismate mutase into a monomeric, four-helix-bundle protein with near native activity. Successful reengineering depended on choosing a thermostable starting protein, introducing point mutations that preferentially destabilize the wild-type dimer, and using directed evolution to optimize an inserted interhelical turn. Contrary to expectations based on studies of other four-helix-bundle proteins, only a small fraction of possible turn sequences (fewer than 0.05 percent) yielded well-behaved, monomeric, and highly active enzymes. Selection for catalytic function thus provides an efficient yet stringent method for rapidly assessing correctly folded polypeptides and may prove generally useful for protein design.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉MacBeath, G -- Kast, P -- Hilvert, D -- New York, N.Y. -- Science. 1998 Mar 20;279(5358):1958-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Scripps Research Institute, Department of Chemistry, 10550 North Torrey Pines Road, La Jolla, California, 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9506949" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites ; Catalysis ; Chorismate Mutase/*chemistry/genetics/*metabolism ; Circular Dichroism ; Cloning, Molecular ; Dimerization ; *Directed Molecular Evolution ; Escherichia coli/genetics ; Models, Molecular ; Molecular Sequence Data ; *Protein Conformation ; *Protein Engineering ; Protein Folding ; Protein Structure, Secondary ; Recombinant Proteins/chemistry/metabolism ; Transformation, Bacterial
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  • 24
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    Concerted evolution in an egg receptor for a rapidly evolving abalone sperm protein (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-07-31
    Description: Gamete interactions during fertilization exhibit species specificity. In abalone, the sperm protein lysin species-specifically creates a hole in the egg envelope. Lysin evolves rapidly by positive Darwinian selection. Evolution of the egg receptor for lysin provides the selective pressure for lysin's divergence. The egg receptor for lysin is a tandemly repeated sequence that evolves by concerted evolution. Concerted evolution in the egg receptor could explain the rapid, adaptive evolution in sperm lysin and may provide an underlying molecular mechanism that gives rise to species-specific fertilization.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Swanson, W J -- Vacquier, V D -- HD12986/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1998 Jul 31;281(5377):710-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California at San Diego, La Jolla, CA 92093-0202, USA. jwswanson@ucsd.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9685267" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Egg Proteins/chemistry/*genetics/metabolism ; *Evolution, Molecular ; Female ; Introns ; Male ; Molecular Sequence Data ; Mollusca/chemistry/*genetics/physiology ; Mucoproteins/chemistry/genetics/*metabolism ; Ovum/chemistry/physiology ; Receptors, Cell Surface/chemistry/*genetics/metabolism ; Repetitive Sequences, Nucleic Acid ; Selection, Genetic ; Sequence Alignment ; Species Specificity ; Sperm-Ovum Interactions ; Spermatozoa/chemistry/physiology ; Vitelline Membrane/*chemistry/metabolism
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    New model for hereditary breast cancer (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-05-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hagmann, M -- New York, N.Y. -- Science. 1999 Apr 30;284(5415):723, 725.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10336390" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apoptosis ; Breast Neoplasms/*genetics/pathology ; *Disease Models, Animal ; Female ; *Genes, BRCA1 ; Genes, p53 ; Humans ; Mammary Glands, Animal/pathology ; Mammary Neoplasms, Animal/*genetics/pathology ; Mice ; Mice, Knockout ; Mice, Transgenic ; Mutation
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  • 26
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    Unmasking a cheating gene (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-04-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Crow, J F -- New York, N.Y. -- Science. 1999 Mar 12;283(5408):1651-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, University of Wisconsin, Madison, WI 53706, USA. jfcrow@facstaff.wisc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10189318" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carrier Proteins/*genetics/physiology ; Cell Nucleus/metabolism ; Cloning, Molecular ; Drosophila/*genetics/physiology ; *Drosophila Proteins ; *GTPase-Activating Proteins ; *Genes, Insect ; Male ; *Meiosis ; Nuclear Proteins/*genetics/physiology ; Sperm Maturation ; Spermatozoa/*physiology
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  • 27
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    Key brain receptor gets an unusual regulator (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wickelgren, I -- New York, N.Y. -- Science. 1999 Nov 12;286(5443):1265-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10610528" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Astrocytes/*enzymology ; Brain/*enzymology ; Cloning, Molecular ; Glutamic Acid/metabolism ; Neurons/metabolism ; Racemases and Epimerases/*genetics/metabolism ; Rats ; Receptors, N-Methyl-D-Aspartate/metabolism ; Serine/*biosynthesis/metabolism ; Stereoisomerism ; Synapses/metabolism
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  • 28
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    Requirement of ATM-dependent phosphorylation of brca1 in the DNA damage response to double-strand breaks (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-11-05
    Description: The Brca1 (breast cancer gene 1) tumor suppressor protein is phosphorylated in response to DNA damage. Results from this study indicate that the checkpoint protein kinase ATM (mutated in ataxia telangiectasia) was required for phosphorylation of Brca1 in response to ionizing radiation. ATM resides in a complex with Brca1 and phosphorylated Brca1 in vivo and in vitro in a region that contains clusters of serine-glutamine residues. Phosphorylation of this domain appears to be functionally important because a mutated Brca1 protein lacking two phosphorylation sites failed to rescue the radiation hypersensitivity of a Brca1-deficient cell line. Thus, phosphorylation of Brca1 by the checkpoint kinase ATM may be critical for proper responses to DNA double-strand breaks and may provide a molecular explanation for the role of ATM in breast cancer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cortez, D -- Wang, Y -- Qin, J -- Elledge, S J -- GM44664/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1999 Nov 5;286(5442):1162-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Verna and Mars McLean Department of Biochemistry and Molecular Biology, Howard Hughes Medical Institute, Department of Cell Biology, Baylor College of Medicine, Houston, TX 77030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10550055" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Ataxia Telangiectasia/genetics ; Ataxia Telangiectasia Mutated Proteins ; BRCA1 Protein/*metabolism ; Breast Neoplasms/genetics ; Cell Cycle Proteins ; Cell Line ; *DNA Damage ; *DNA Repair ; DNA, Complementary ; DNA-Binding Proteins ; Female ; Gamma Rays ; Genes, BRCA1 ; Genetic Predisposition to Disease ; HeLa Cells ; Heterozygote ; Humans ; Molecular Sequence Data ; Mutation ; Phosphorylation ; Protein-Serine-Threonine Kinases/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Tumor Suppressor Proteins
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  • 29
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    Regulation of intestinal alpha-defensin activation by the metalloproteinase matrilysin in innate host defense (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-10-03
    Description: Precursors of alpha-defensin peptides require activation for bactericidal activity. In mouse small intestine, matrilysin colocalized with alpha-defensins (cryptdins) in Paneth cell granules, and in vitro it cleaved the pro segment from cryptdin precursors. Matrilysin-deficient (MAT-/-) mice lacked mature cryptdins and accumulated precursor molecules. Intestinal peptide preparations from MAT-/- mice had decreased antimicrobial activity. Orally administered bacteria survived in greater numbers and were more virulent in MAT-/- mice than in MAT+/+ mice. Thus, matrilysin functions in intestinal mucosal defense by regulating the activity of defensins, which may be a common role for this metalloproteinase in its numerous epithelial sites of expression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilson, C L -- Ouellette, A J -- Satchell, D P -- Ayabe, T -- Lopez-Boado, Y S -- Stratman, J L -- Hultgren, S J -- Matrisian, L M -- Parks, W C -- New York, N.Y. -- Science. 1999 Oct 1;286(5437):113-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatrics, Division of Allergy and Pulmonary Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA. wilson_c@kids.wustl.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10506557" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Catalysis ; Cytoplasmic Granules/enzymology ; Escherichia coli/growth & development ; Escherichia coli Infections/immunology/microbiology ; Female ; Humans ; *Immunity, Innate ; *Immunity, Mucosal ; Intestinal Mucosa/enzymology/immunology/microbiology ; Intestine, Small/enzymology/*immunology/microbiology ; Male ; Matrix Metalloproteinase 7 ; Metalloendopeptidases/genetics/*metabolism ; Mice ; Molecular Sequence Data ; Paneth Cells/enzymology ; Protein Precursors/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Salmonella typhimurium/growth & development/pathogenicity ; Tissue Extracts/pharmacology
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  • 30
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    Role of nonexercise activity thermogenesis in resistance to fat gain in humans (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-01-08
    Description: Humans show considerable interindividual variation in susceptibility to weight gain in response to overeating. The physiological basis of this variation was investigated by measuring changes in energy storage and expenditure in 16 nonobese volunteers who were fed 1000 kilocalories per day in excess of weight-maintenance requirements for 8 weeks. Two-thirds of the increases in total daily energy expenditure was due to increased nonexercise activity thermogenesis (NEAT), which is associated with fidgeting, maintenance of posture, and other physical activities of daily life. Changes in NEAT accounted for the 10-fold differences in fat storage that occurred and directly predicted resistance to fat gain with overfeeding (correlation coefficient = 0.77, probability 〈 0.001). These results suggest that as humans overeat, activation of NEAT dissipates excess energy to preserve leanness and that failure to activate NEAT may result in ready fat gain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Levine, J A -- Eberhardt, N L -- Jensen, M D -- DK45343/DK/NIDDK NIH HHS/ -- DK50456/DK/NIDDK NIH HHS/ -- M01 RR00535/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1999 Jan 8;283(5399):212-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Endocrine Research Unit, Mayo Clinic and Mayo Foundation, 200 First Street Southwest, Rochester, MN 55905, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9880251" target="_blank"〉PubMed〈/a〉
    Keywords: Activities of Daily Living ; *Adipose Tissue ; Adult ; Basal Metabolism ; Body Composition ; Calorimetry, Indirect ; *Energy Intake ; *Energy Metabolism ; Exercise ; Female ; Humans ; Hyperphagia/*physiopathology ; Male ; *Movement ; Posture ; *Weight Gain
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    Stability, precision, and near-24-hour period of the human circadian pacemaker (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-06-26
    Description: Regulation of circadian period in humans was thought to differ from that of other species, with the period of the activity rhythm reported to range from 13 to 65 hours (median 25.2 hours) and the period of the body temperature rhythm reported to average 25 hours in adulthood, and to shorten with age. However, those observations were based on studies of humans exposed to light levels sufficient to confound circadian period estimation. Precise estimation of the periods of the endogenous circadian rhythms of melatonin, core body temperature, and cortisol in healthy young and older individuals living in carefully controlled lighting conditions has now revealed that the intrinsic period of the human circadian pacemaker averages 24.18 hours in both age groups, with a tight distribution consistent with other species. These findings have important implications for understanding the pathophysiology of disrupted sleep in older people.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Czeisler, C A -- Duffy, J F -- Shanahan, T L -- Brown, E N -- Mitchell, J F -- Rimmer, D W -- Ronda, J M -- Silva, E J -- Allan, J S -- Emens, J S -- Dijk, D J -- Kronauer, R E -- MO1-RR02635/RR/NCRR NIH HHS/ -- P01-AG09975/AG/NIA NIH HHS/ -- R01-GM53559/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1999 Jun 25;284(5423):2177-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Circadian, Neuroendocrine, and Sleep Disorders Section, Division of Endocrinology, Department of Medicine, Harvard Medical School, Brigham and Women's Hospital, 221 Longwood Avenue, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10381883" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; Aging/*physiology ; Biological Clocks/genetics/*physiology ; Body Temperature ; Circadian Rhythm/genetics/*physiology ; Darkness ; Female ; Humans ; Hydrocortisone/blood ; Light ; Male ; Melatonin/blood ; Middle Aged ; Sleep
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    Defective angiogenesis in mice lacking endoglin (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-05-29
    Description: Endoglin is a transforming growth factor-beta (TGF-beta) binding protein expressed on the surface of endothelial cells. Loss-of-function mutations in the human endoglin gene ENG cause hereditary hemorrhagic telangiectasia (HHT1), a disease characterized by vascular malformations. Here it is shown that by gestational day 11.5, mice lacking endoglin die from defective vascular development. However, in contrast to mice lacking TGF-beta, vasculogenesis was unaffected. Loss of endoglin caused poor vascular smooth muscle development and arrested endothelial remodeling. These results demonstrate that endoglin is essential for angiogenesis and suggest a pathogenic mechanism for HHT1.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, D Y -- Sorensen, L K -- Brooke, B S -- Urness, L D -- Davis, E C -- Taylor, D G -- Boak, B B -- Wendel, D P -- K08 HL03490-03/HL/NHLBI NIH HHS/ -- T35 HL07744-06/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1999 May 28;284(5419):1534-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Program in Human Molecular Biology and Genetics, Department of Human Genetics, Howard Hughes Medical Institute, University of Utah, Salt Lake City, UT 84112-5330, USA. dean.li@hci.utah.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10348742" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD ; Antigens, CD31/analysis ; Blood Vessels/cytology/*embryology/metabolism ; Cell Differentiation ; Crosses, Genetic ; Endothelium, Vascular/cytology/*embryology/metabolism ; Female ; Gene Targeting ; In Situ Hybridization ; Male ; Mice ; Mice, Inbred C57BL ; Microscopy, Electron ; Muscle, Smooth, Vascular/cytology/*embryology ; *Neovascularization, Physiologic ; Receptors, Cell Surface ; Signal Transduction ; Transforming Growth Factor beta/metabolism ; Vascular Cell Adhesion Molecule-1/genetics/*physiology ; Yolk Sac/ultrastructure
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    A cytotoxic ribonuclease targeting specific transfer RNA anticodons (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-03-26
    Description: The carboxyl-terminal domain of colicin E5 was shown to inhibit protein synthesis of Escherichia coli. Its target, as revealed through in vivo and in vitro experiments, was not ribosomes as in the case of E3, but the transfer RNAs (tRNAs) for Tyr, His, Asn, and Asp, which contain a modified base, queuine, at the wobble position of each anticodon. The E5 carboxyl-terminal domain hydrolyzed these tRNAs just on the 3' side of this nucleotide. Tight correlation was observed between the toxicity of E5 and the cleavage of intracellular tRNAs of this group, implying that these tRNAs are the primary targets of colicin E5.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ogawa, T -- Tomita, K -- Ueda, T -- Watanabe, K -- Uozumi, T -- Masaki, H -- New York, N.Y. -- Science. 1999 Mar 26;283(5410):2097-100.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biotechnology, Graduate School of Agricultural and Life Sciences, University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-8657, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10092236" target="_blank"〉PubMed〈/a〉
    Keywords: Anticodon/*metabolism ; Bacterial Proteins/biosynthesis/genetics/pharmacology ; Base Sequence ; Cloning, Molecular ; Colicins/genetics/*metabolism/pharmacology ; Escherichia coli/drug effects/metabolism ; *Escherichia coli Proteins ; Guanine/analogs & derivatives/analysis ; Molecular Sequence Data ; RNA, Bacterial/chemistry/*metabolism ; RNA, Ribosomal, 16S/metabolism ; RNA, Transfer, Amino Acid-Specific/chemistry/*metabolism ; RNA, Transfer, Asn/chemistry/metabolism ; RNA, Transfer, Asp/chemistry/metabolism ; RNA, Transfer, His/chemistry/metabolism ; RNA, Transfer, Tyr/chemistry/metabolism ; Ribonucleases/genetics/*metabolism/pharmacology ; Ribosomes/metabolism
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    Paracellular channels! (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wong, V -- Goodenough, D A -- New York, N.Y. -- Science. 1999 Jul 2;285(5424):62.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10428705" target="_blank"〉PubMed〈/a〉
    Keywords: Calcium Channels/metabolism ; Cell Membrane/metabolism/ultrastructure ; Claudins ; Cloning, Molecular ; Humans ; Ion Channels ; Ion Transport ; Kidney Diseases/genetics/*metabolism ; Kidney Tubules/*metabolism/ultrastructure ; Lipid Bilayers/metabolism ; Magnesium/blood/*metabolism ; Magnesium Deficiency/genetics/*metabolism ; Membrane Proteins/genetics/*physiology ; Mutation ; Tight Junctions/*metabolism
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    Regulation of maternal behavior and offspring growth by paternally expressed Peg3 (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-04-09
    Description: Imprinted genes display parent-of-origin-dependent monoallelic expression that apparently regulates complex mammalian traits, including growth and behavior. The Peg3 gene is expressed in embryos and the adult brain from the paternal allele only. A mutation in the Peg3 gene resulted in growth retardation, as well as a striking impairment of maternal behavior that frequently resulted in death of the offspring. This result may be partly due to defective neuronal connectivity, as well as reduced oxytocin neurons in the hypothalamus, because mutant mothers were deficient in milk ejection. This study provides further insights on the evolution of epigenetic regulation of imprinted gene dosage in modulating mammalian growth and behavior.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, L -- Keverne, E B -- Aparicio, S A -- Ishino, F -- Barton, S C -- Surani, M A -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1999 Apr 9;284(5412):330-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wellcome CRC Institute of Cancer and Developmental Biology, and Physiological Laboratory, University of Cambridge, Tennis Court Road, Cambridge CB2 1QR, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10195900" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Newborn ; Brain/metabolism ; Crosses, Genetic ; Female ; Gene Expression ; Gene Targeting ; *Genomic Imprinting ; *Growth ; Hypothalamus/cytology/metabolism ; Kruppel-Like Transcription Factors ; Lactation ; Male ; *Maternal Behavior ; Mice ; Mutation ; Neural Pathways ; Neurons/metabolism ; Oxytocin/metabolism ; Phenotype ; *Protein Kinases ; Proteins/genetics/*physiology ; *Transcription Factors ; *Weight Gain
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Self-organization of microtubule asters induced in Xenopus egg extracts by GTP-bound Ran (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-05-21
    Description: The nucleotide exchange activity of RCC1, the only known nucleotide exchange factor for Ran, a Ras-like small guanosine triphosphatase, was required for microtubule aster formation with or without demembranated sperm in Xenopus egg extracts arrested in meiosis II. Consistently, in the RCC1-depleted egg extracts, Ran guanosine triphosphate (RanGTP), but not Ran guanosine diphosphate (RanGDP), induced self-organization of microtubule asters, and the process required the activity of dynein. Thus, Ran was shown to regulate formation of the microtubule network.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ohba, T -- Nakamura, M -- Nishitani, H -- Nishimoto, T -- New York, N.Y. -- Science. 1999 May 21;284(5418):1356-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Graduate School of Medical Science, Kyushu University, Maidashi Higashi-ku, Fukuoka 812-8582, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10334990" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cell Cycle Proteins ; Cell Extracts ; Cell Nucleus/metabolism ; DNA-Binding Proteins/metabolism ; Dyneins/metabolism ; Female ; GTP Phosphohydrolases/*metabolism ; *Guanine Nucleotide Exchange Factors ; Guanosine Diphosphate/metabolism ; Guanosine Triphosphate/*metabolism ; Male ; Microtubules/chemistry/*metabolism/ultrastructure ; Nuclear Proteins/analysis/*metabolism ; Ovum ; Recombinant Proteins/metabolism ; Sperm Head/physiology ; Spindle Apparatus/chemistry/*metabolism/ultrastructure ; Xenopus ; *Xenopus Proteins ; ran GTP-Binding Protein
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    Intracytoplasmic sperm injection (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-10-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hawkins, M M -- Barratt, C L -- New York, N.Y. -- Science. 1999 Oct 1;286(5437):51-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10532889" target="_blank"〉PubMed〈/a〉
    Keywords: Child ; Congenital Abnormalities/etiology ; Developmental Disabilities/etiology ; Female ; Fertilization in Vitro/*adverse effects ; Great Britain ; Humans ; Male ; Neoplasms/etiology ; Pregnancy ; Pregnancy Outcome ; Registries ; Risk Factors
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    Behaviorists listen in as animals call and croak (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-09-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bagla, P -- New York, N.Y. -- Science. 1999 Sep 3;285(5433):1480-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10498530" target="_blank"〉PubMed〈/a〉
    Keywords: *Animal Communication ; Animals ; Anura/*physiology ; Female ; Grasshoppers/*physiology ; Male
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    Breast implant safety (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-04-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Davis, D L -- Garry, R F -- New York, N.Y. -- Science. 1999 Mar 12;283(5408):1644.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10189316" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Breast Implants/*adverse effects ; Female ; Humans ; Silicone Gels/*adverse effects
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    Cell surgery (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sikorski, R -- Peters, R -- New York, N.Y. -- Science. 1999 Nov 19;286(5444):1498.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10610553" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bone Marrow Cells/*cytology ; Cell Differentiation ; Cell Separation ; Dystrophin/biosynthesis ; Female ; *Hematopoietic Stem Cell Transplantation ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Inbred mdx ; Muscle, Skeletal/*cytology/metabolism ; *Stem Cell Transplantation ; Stem Cells/*cytology
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    Dosage compensation proteins targeted to X chromosomes by a determinant of hermaphrodite fate (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-06-12
    Description: In many organisms, master control genes coordinately regulate sex-specific aspects of development. SDC-2 was shown to induce hermaphrodite sexual differentiation and activate X chromosome dosage compensation in Caenorhabditis elegans. To control these distinct processes, SDC-2 acts as a strong gene-specific repressor and a weaker chromosome-wide repressor. To initiate hermaphrodite development, SDC-2 associates with the promoter of the male sex-determining gene her-1 to repress its transcription. To activate dosage compensation, SDC-2 triggers assembly of a specialized protein complex exclusively on hermaphrodite X chromosomes to reduce gene expression by half. SDC-2 can localize to X chromosomes without other components of the dosage compensation complex, suggesting that SDC-2 targets dosage compensation machinery to X chromosomes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dawes, H E -- Berlin, D S -- Lapidus, D M -- Nusbaum, C -- Davis, T L -- Meyer, B J -- GM30702/GM/NIGMS NIH HHS/ -- T32 GM07127/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1999 Jun 11;284(5421):1800-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720-3204, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10364546" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Caenorhabditis elegans/embryology/*genetics/physiology ; *Caenorhabditis elegans Proteins ; *DNA-Binding Proteins ; Disorders of Sex Development ; *Dosage Compensation, Genetic ; Female ; Gene Expression Regulation, Developmental ; Genes, Helminth ; Helminth Proteins/genetics/*physiology ; Male ; Molecular Sequence Data ; Mutation ; Promoter Regions, Genetic ; Repressor Proteins/genetics/*physiology ; *Sex Determination Processes ; Transgenes ; X Chromosome/genetics/*metabolism
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    Human cloning. Korean report sparks anger and inquiry (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-01-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baker, M -- New York, N.Y. -- Science. 1999 Jan 1;283(5398):16-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9917255" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Bioethics ; *Cloning, Organism ; Embryo Research ; Female ; Government Regulation ; Humans ; Korea ; Nuclear Transfer Techniques ; Research
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    Genomic views of human history (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-10-16
    Description: New tools of genomic analysis shed light on historical puzzles. Migrations of ancient peoples, differences in migration patterns of males and females, historical demography of cultures with ancient roots, and patterns of human genetic diversity are increasingly the focus of integrated analysis by historians, anthropologists, and geneticists.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Owens, K -- King, M C -- New York, N.Y. -- Science. 1999 Oct 15;286(5439):451-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Genetics and Medicine, Box 357720, University of Washington, Seattle, WA 98195, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10521333" target="_blank"〉PubMed〈/a〉
    Keywords: *Anthropology ; Biological Evolution ; Continental Population Groups/genetics ; Culture ; Emigration and Immigration ; Ethnic Groups/genetics ; Female ; Genetic Variation ; *Genetics, Population ; *Genome, Human ; History, Ancient ; Humans ; Jews/genetics ; Male
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    Plant paralog to viral movement protein that potentiates transport of mRNA into the phloem (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-01-05
    Description: CmPP16 from Cucurbita maxima was cloned and the protein was shown to possess properties similar to those of viral movement proteins. CmPP16 messenger RNA (mRNA) is present in phloem tissue, whereas protein appears confined to sieve elements (SE). Microinjection and grafting studies revealed that CmPP16 moves from cell to cell, mediates the transport of sense and antisense RNA, and moves together with its mRNA into the SE of scion tissue. CmPP16 possesses the characteristics that are likely required to mediate RNA delivery into the long-distance translocation stream. Thus, RNA may move within the phloem as a component of a plant information superhighway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xoconostle-Cazares, B -- Xiang, Y -- Ruiz-Medrano, R -- Wang, H L -- Monzer, J -- Yoo, B C -- McFarland, K C -- Franceschi, V R -- Lucas, W J -- New York, N.Y. -- Science. 1999 Jan 1;283(5398):94-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Plant Biology, Division of Biological Sciences, University of California, Davis, CA 95616, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9872750" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Biological Transport ; Cloning, Molecular ; Cucumis sativus ; Cucurbitaceae/genetics/*metabolism ; Microinjections ; Molecular Sequence Data ; Plant Leaves/metabolism ; Plant Proteins/chemistry/genetics/*metabolism ; Plant Roots/metabolism ; Plant Stems/metabolism ; Plant Viral Movement Proteins ; RNA, Antisense/metabolism ; RNA, Messenger/*metabolism ; RNA, Plant/*metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; Signal Transduction ; Viral Proteins/chemistry/metabolism
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    Beating the odds with Big K (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-10-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Silberberg, S D -- Magleby, K L -- New York, N.Y. -- Science. 1999 Sep 17;285(5435):1859-60.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Life Sciences, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel. silber@bgumail.bgu.ac.il〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10515790" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood Pressure/drug effects/*physiology ; Estradiol/*metabolism/pharmacology ; Female ; Humans ; Large-Conductance Calcium-Activated Potassium Channels ; Longevity/physiology ; Male ; Muscle Contraction ; Muscle, Smooth, Vascular/drug effects/metabolism ; Potassium Channels/*metabolism ; *Potassium Channels, Calcium-Activated ; Recombinant Proteins/metabolism ; Sex Characteristics ; Xenopus
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    A long season puts Catalhoyuk in context (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-11-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Balter, M -- New York, N.Y. -- Science. 1999 Oct 29;286(5441):890-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10577237" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Child ; Female ; *Fossils ; History, Ancient ; Humans ; Male ; Paleopathology ; Skull/*pathology ; Turkey
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 47
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    Paracellin-1, a renal tight junction protein required for paracellular Mg2+ resorption (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-03
    Description: Epithelia permit selective and regulated flux from apical to basolateral surfaces by transcellular passage through cells or paracellular flux between cells. Tight junctions constitute the barrier to paracellular conductance; however, little is known about the specific molecules that mediate paracellular permeabilities. Renal magnesium ion (Mg2+) resorption occurs predominantly through a paracellular conductance in the thick ascending limb of Henle (TAL). Here, positional cloning has identified a human gene, paracellin-1 (PCLN-1), mutations in which cause renal Mg2+ wasting. PCLN-1 is located in tight junctions of the TAL and is related to the claudin family of tight junction proteins. These findings provide insight into Mg2+ homeostasis, demonstrate the role of a tight junction protein in human disease, and identify an essential component of a selective paracellular conductance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Simon, D B -- Lu, Y -- Choate, K A -- Velazquez, H -- Al-Sabban, E -- Praga, M -- Casari, G -- Bettinelli, A -- Colussi, G -- Rodriguez-Soriano, J -- McCredie, D -- Milford, D -- Sanjad, S -- Lifton, R P -- F.1/Telethon/Italy -- R01DK51696/DK/NIDDK NIH HHS/ -- TGM06S01/Telethon/Italy -- New York, N.Y. -- Science. 1999 Jul 2;285(5424):103-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Genetics, Yale University School of Medicine, New Haven, CT 06510, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10390358" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Calcium/urine ; Chromosomes, Human, Pair 3/genetics ; Claudins ; Cloning, Molecular ; Female ; Genes, Recessive ; Homeostasis ; Humans ; Kidney Diseases/*genetics/metabolism ; Kidney Tubules/chemistry ; Loop of Henle/chemistry/*metabolism ; Magnesium/blood/*metabolism ; Magnesium Deficiency/*genetics/metabolism ; Male ; Membrane Proteins/analysis/chemistry/genetics/*physiology ; Molecular Sequence Data ; Mutation ; Pedigree ; Physical Chromosome Mapping ; Tight Junctions/*metabolism
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Regulated delivery of therapeutic proteins after in vivo somatic cell gene transfer (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999
    Description: Stable delivery of a therapeutic protein under pharmacologic control was achieved through in vivo somatic gene transfer. This system was based on the expression of two chimeric, human-derived proteins that were reconstituted by rapamycin into a transcription factor complex. A mixture of two adeno-associated virus vectors, one expressing the transcription factor chimeras and one containing erythropoietin (Epo) under the control of a promoter responsive to the transcription factor, was injected into skeletal muscle of immune-competent mice. Administration of rapamycin resulted in 200-fold induction of plasma Epo. Stable engraftment of this humanized system in immune-competent mice was achieved for 6 months with similar results for at least 3 months in a rhesus monkey.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ye, X -- Rivera, V M -- Zoltick, P -- Cerasoli, F Jr -- Schnell, M A -- Gao, G -- Hughes, J V -- Gilman, M -- Wilson, J M -- P01 AR/NS43648-03/AR/NIAMS NIH HHS/ -- P30 DK47757-05/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1999 Jan 1;283(5398):88-91.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Human Gene Therapy, University of Pennsylvania, Philadelphia, PA 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9872748" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cytomegalovirus/genetics ; Dependovirus/genetics ; Erythropoietin/administration & dosage/blood/*genetics ; Female ; Gene Expression Regulation ; *Gene Transfer Techniques ; Genetic Therapy/*methods ; Genetic Vectors ; Hematocrit ; Injections, Intramuscular ; Macaca mulatta ; Male ; Mice ; Mice, Inbred BALB C ; Mice, Nude ; Muscle, Skeletal ; Promoter Regions, Genetic ; Recombinant Fusion Proteins ; Recombinant Proteins ; Sirolimus/*pharmacology ; Transcription Factors/*genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    HIV. French-led therapy fund kicks off in Africa (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-06-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Balter, M -- New York, N.Y. -- Science. 1999 May 14;284(5417):1101.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10366339" target="_blank"〉PubMed〈/a〉
    Keywords: Anti-HIV Agents/*therapeutic use ; Cote d'Ivoire ; Female ; *Financial Support ; France ; Fund Raising ; HIV Infections/*drug therapy/*prevention & control/transmission ; Humans ; Infectious Disease Transmission, Vertical/prevention & control ; *International Agencies/economics ; Pilot Projects ; Pregnancy ; Pregnancy Complications, Infectious/drug therapy
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Search for cross-species transmission of porcine endogenous retrovirus in patients treated with living pig tissue. The XEN 111 Study Group (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-08-24
    Description: Pig organs may offer a solution to the shortage of human donor organs for transplantation, but concerns remain about possible cross-species transmission of porcine endogenous retrovirus (PERV). Samples were collected from 160 patients who had been treated with various living pig tissues up to 12 years earlier. Reverse transcription-polymerase chain reaction (RT-PCR) and protein immunoblot analyses were performed on serum from all 160 patients. No viremia was detected in any patient. Peripheral blood mononuclear cells from 159 of the patients were analyzed by PCR using PERV-specific primers. No PERV infection was detected in any of the patients from whom sufficient DNA was extracted to allow complete PCR analysis (97 percent of the patients). Persistent microchimerism (presence of donor cells in the recipient) was observed in 23 patients for up to 8.5 years.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Paradis, K -- Langford, G -- Long, Z -- Heneine, W -- Sandstrom, P -- Switzer, W M -- Chapman, L E -- Lockey, C -- Onions, D -- Otto, E -- New York, N.Y. -- Science. 1999 Aug 20;285(5431):1236-41.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Imutran Ltd. (a Novartis Pharma AG company), Post Office Box 399, Cambridge CB2 2YP, UK. khazal.paradis@pharma.novartis.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10455044" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Aged ; Animals ; Antibodies, Viral/blood ; Child ; Child, Preschool ; Chimera ; DNA, Viral/analysis ; Extracorporeal Circulation ; Female ; *Gammaretrovirus/genetics/immunology/isolation & purification ; Humans ; Immunoblotting ; Islets of Langerhans Transplantation ; Male ; Middle Aged ; RNA, Viral/analysis ; Retrospective Studies ; Retroviridae Infections/diagnosis/*transmission ; Reverse Transcriptase Polymerase Chain Reaction ; Skin Transplantation ; Swine ; *Transplantation, Heterologous/adverse effects ; Tumor Virus Infections/diagnosis/*transmission ; Viremia/diagnosis ; *Zoonoses
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Sources of mathematical thinking: behavioral and brain-imaging evidence (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-05-13
    Description: Does the human capacity for mathematical intuition depend on linguistic competence or on visuo-spatial representations? A series of behavioral and brain-imaging experiments provides evidence for both sources. Exact arithmetic is acquired in a language-specific format, transfers poorly to a different language or to novel facts, and recruits networks involved in word-association processes. In contrast, approximate arithmetic shows language independence, relies on a sense of numerical magnitudes, and recruits bilateral areas of the parietal lobes involved in visuo-spatial processing. Mathematical intuition may emerge from the interplay of these brain systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dehaene, S -- Spelke, E -- Pinel, P -- Stanescu, R -- Tsivkin, S -- HD23103/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1999 May 7;284(5416):970-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Unite INSERM 334, Service Hospitalier Frederic Joliot, CEA/DSV, 91401 Orsay Cedex, France. dehaene@shfj.cea.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10320379" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Brain Mapping ; Evoked Potentials ; Female ; Frontal Lobe/*physiology ; Humans ; Intuition ; *Language ; Magnetic Resonance Imaging ; Male ; *Mathematics ; Parietal Lobe/*physiology ; *Thinking
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  • 52
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    Structure of the VHL-ElonginC-ElonginB complex: implications for VHL tumor suppressor function (1999)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1999-04-16
    Description: Mutation of the VHL tumor suppressor is associated with the inherited von Hippel-Lindau (VHL) cancer syndrome and the majority of kidney cancers. VHL binds the ElonginC-ElonginB complex and regulates levels of hypoxia-inducible proteins. The structure of the ternary complex at 2.7 angstrom resolution shows two interfaces, one between VHL and ElonginC and another between ElonginC and ElonginB. Tumorigenic mutations frequently occur in a 35-residue domain of VHL responsible for ElonginC binding. A mutational patch on a separate domain of VHL indicates a second macromolecular binding site. The structure extends the similarities to the SCF (Skp1-Cul1-F-box protein) complex that targets proteins for degradation, supporting the hypothesis that VHL may function in an analogous pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stebbins, C E -- Kaelin, W G Jr -- Pavletich, N P -- New York, N.Y. -- Science. 1999 Apr 16;284(5413):455-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Structural Biology, Joan and Sanford I. Weill Graduate School of Medical Sciences, Cornell University, New York, NY 10021, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10205047" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites ; Cell Cycle Proteins/chemistry/metabolism ; Cloning, Molecular ; Crystallography, X-Ray ; *Genes, Tumor Suppressor ; Humans ; Hydrogen Bonding ; *Ligases ; Models, Molecular ; Molecular Sequence Data ; Mutation ; Mutation, Missense ; Neoplasms/genetics ; Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Proteins/*chemistry/genetics/metabolism ; S-Phase Kinase-Associated Proteins ; Surface Properties ; Transcription Factors/*chemistry/metabolism ; *Tumor Suppressor Proteins ; *Ubiquitin-Protein Ligases ; Von Hippel-Lindau Tumor Suppressor Protein ; von Hippel-Lindau Disease/*genetics
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    Control of circadian rhythms and photoperiodic flowering by the Arabidopsis GIGANTEA gene (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-09-08
    Description: Photoperiodic responses in plants include flowering that is day-length-dependent. Mutations in the Arabidopsis thaliana GIGANTEA (GI) gene cause photoperiod-insensitive flowering and alteration of circadian rhythms. The GI gene encodes a protein containing six putative transmembrane domains. Circadian expression patterns of the GI gene and the clock-associated genes, LHY and CCA1, are altered in gi mutants, showing that GI is required for maintaining circadian amplitude and appropriate period length of these genes. The gi-1 mutation also affects light signaling to the clock, which suggests that GI participates in a feedback loop of the plant circadian system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Park, D H -- Somers, D E -- Kim, Y S -- Choy, Y H -- Lim, H K -- Soh, M S -- Kim, H J -- Kay, S A -- Nam, H G -- GM56006/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1999 Sep 3;285(5433):1579-82.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Life Science, Pohang University of Science and Technology, Pohang, Kyungbuk, 790-784, Korea.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10477524" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/*genetics/*physiology ; *Arabidopsis Proteins ; *Circadian Rhythm ; Cloning, Molecular ; Crosses, Genetic ; DNA-Binding Proteins/genetics ; Darkness ; Feedback ; Gene Expression Regulation, Plant ; *Genes, Plant ; Light ; Molecular Sequence Data ; Mutation ; Photoperiod ; Plant Leaves/physiology ; Plant Proteins/chemistry/*genetics/physiology ; Plant Structures/physiology ; Sequence Deletion ; Transcription Factors/genetics
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    Control of autoimmune diabetes in NOD mice by GAD expression or suppression in beta cells (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-05-15
    Description: Glutamic acid decarboxylase (GAD) is a pancreatic beta cell autoantigen in humans and nonobese diabetic (NOD) mice. beta Cell-specific suppression of GAD expression in two lines of antisense GAD transgenic NOD mice prevented autoimmune diabetes, whereas persistent GAD expression in the beta cells in the other four lines of antisense GAD transgenic NOD mice resulted in diabetes, similar to that seen in transgene-negative NOD mice. Complete suppression of beta cell GAD expression blocked the generation of diabetogenic T cells and protected islet grafts from autoimmune injury. Thus, beta cell-specific GAD expression is required for the development of autoimmune diabetes in NOD mice, and modulation of GAD might, therefore, have therapeutic value in type 1 diabetes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yoon, J W -- Yoon, C S -- Lim, H W -- Huang, Q Q -- Kang, Y -- Pyun, K H -- Hirasawa, K -- Sherwin, R S -- Jun, H S -- DK 45735/DK/NIDDK NIH HHS/ -- DK 53015-01/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1999 May 14;284(5417):1183-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Viral and Immunopathogenesis of Diabetes, Julia McFarlane Diabetes Research Centre, Faculty of Medicine, University of Calgary, Calgary, Alberta T2N 4N1, Canada. yoon@ucalgary.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10325232" target="_blank"〉PubMed〈/a〉
    Keywords: Adoptive Transfer ; Animals ; Autoantigens/genetics/*immunology/physiology ; Autoimmunity ; DNA, Antisense ; Diabetes Mellitus, Type 1/*enzymology/*immunology/pathology ; Female ; Gene Expression ; Glutamate Decarboxylase/genetics/*immunology/physiology ; Insulin/blood/metabolism ; Islets of Langerhans/*enzymology/immunology/metabolism/pathology ; Islets of Langerhans Transplantation ; Lymphocyte Activation ; Male ; Mice ; Mice, Inbred NOD ; Mice, SCID ; Mice, Transgenic ; T-Lymphocytes/immunology ; Transgenes
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    Abnormal morphogenesis but intact IKK activation in mice lacking the IKKalpha subunit of IkappaB kinase (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-04-09
    Description: The oligomeric IkappaB kinase (IKK) is composed of three polypeptides: IKKalpha and IKKbeta, the catalytic subunits, and IKKgamma, a regulatory subunit. IKKalpha and IKKbeta are similar in structure and thought to have similar function-phosphorylation of the IkappaB inhibitors in response to proinflammatory stimuli. Such phosphorylation leads to degradation of IkappaB and activation of nuclear factor kappaB transcription factors. The physiological function of these protein kinases was explored by analysis of IKKalpha-deficient mice. IKKalpha was not required for activation of IKK and degradation of IkappaB by proinflammatory stimuli. Instead, loss of IKKalpha interfered with multiple morphogenetic events, including limb and skeletal patterning and proliferation and differentiation of epidermal keratinocytes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hu, Y -- Baud, V -- Delhase, M -- Zhang, P -- Deerinck, T -- Ellisman, M -- Johnson, R -- Karin, M -- R01 AI43477/AI/NIAID NIH HHS/ -- R37 ES04151/ES/NIEHS NIH HHS/ -- RR04050/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1999 Apr 9;284(5412):316-20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, Cancer Center, University of California San Diego, La Jolla, CA 92093-0636, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10195896" target="_blank"〉PubMed〈/a〉
    Keywords: Abnormalities, Multiple/enzymology/genetics ; Animals ; Apoptosis ; Body Patterning ; Bone and Bones/abnormalities/embryology ; Cell Differentiation ; Cell Nucleus/metabolism ; Cells, Cultured ; DNA-Binding Proteins/metabolism ; Dimerization ; *Embryonic and Fetal Development ; Enzyme Activation ; Epidermis/cytology/embryology ; Female ; Gene Targeting ; I-kappa B Kinase ; I-kappa B Proteins ; Keratinocytes ; Limb Deformities, Congenital/enzymology ; Male ; Mice ; *Morphogenesis ; Mutation ; Phosphorylation ; Protein-Serine-Threonine Kinases/chemistry/genetics/*metabolism ; Skin/embryology ; Skin Abnormalities/enzymology
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    Replication of subgenomic hepatitis C virus RNAs in a hepatoma cell line (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-03
    Description: An estimated 170 million persons worldwide are infected with hepatitis C virus (HCV), a major cause of chronic liver disease. Despite increasing knowledge of genome structure and individual viral proteins, studies on virus replication and pathogenesis have been hampered by the lack of reliable and efficient cell culture systems. A full-length consensus genome was cloned from viral RNA isolated from an infected human liver and used to construct subgenomic selectable replicons. Upon transfection into a human hepatoma cell line, these RNAs were found to replicate to high levels, permitting metabolic radiolabeling of viral RNA and proteins. This work defines the structure of HCV replicons functional in cell culture and provides the basis for a long-sought cellular system that should allow detailed molecular studies of HCV and the development of antiviral drugs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lohmann, V -- Korner, F -- Koch, J -- Herian, U -- Theilmann, L -- Bartenschlager, R -- New York, N.Y. -- Science. 1999 Jul 2;285(5424):110-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Virology, Johannes-Gutenberg University Mainz, Obere Zahlbacher Strasse 67, 55131 Mainz, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10390360" target="_blank"〉PubMed〈/a〉
    Keywords: Carcinoma, Hepatocellular ; Cloning, Molecular ; Drug Resistance ; *Genome, Viral ; Gentamicins/pharmacology ; Hepacivirus/genetics/*physiology ; Hepatitis C/virology ; Humans ; Liver Neoplasms ; RNA, Viral/*biosynthesis/genetics ; *Replicon ; Transfection ; Tumor Cells, Cultured/*virology ; Viral Nonstructural Proteins/analysis/genetics ; Virus Cultivation ; *Virus Replication
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    Communication goes multimodal (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-03-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Partan, S -- Marler, P -- New York, N.Y. -- Science. 1999 Feb 26;283(5406):1272-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Animal Behavior, University of California, Davis, CA 95616, USA. srpartan@ucdavis.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10084931" target="_blank"〉PubMed〈/a〉
    Keywords: *Animal Communication ; Animals ; *Communication ; Cues ; Facial Expression ; Female ; Humans ; Male ; Pheromones/physiology ; Speech Perception ; Vocalization, Animal
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    Structural maturation of neural pathways in children and adolescents: in vivo study (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-03-19
    Description: Structural maturation of fiber tracts in the human brain, including an increase in the diameter and myelination of axons, may play a role in cognitive development during childhood and adolescence. A computational analysis of structural magnetic resonance images obtained in 111 children and adolescents revealed age-related increases in white matter density in fiber tracts constituting putative corticospinal and frontotemporal pathways. The maturation of the corticospinal tract was bilateral, whereas that of the frontotemporal pathway was found predominantly in the left (speech-dominant) hemisphere. These findings provide evidence for a gradual maturation, during late childhood and adolescence, of fiber pathways presumably supporting motor and speech functions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Paus, T -- Zijdenbos, A -- Worsley, K -- Collins, D L -- Blumenthal, J -- Giedd, J N -- Rapoport, J L -- Evans, A C -- New York, N.Y. -- Science. 1999 Mar 19;283(5409):1908-11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Montreal Neurological Institute, McGill University, 3801 University Street, Montreal, Quebec H3A 2B4, Canada. tomas@bic.mni.mcgill.ca〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10082463" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; *Aging ; Axons/physiology/ultrastructure ; Brain/anatomy & histology/*growth & development ; Brain Mapping ; Child ; Child, Preschool ; Female ; Frontal Lobe/anatomy & histology/growth & development ; Humans ; Magnetic Resonance Imaging ; Male ; Motor Skills ; Myelin Sheath/ultrastructure ; Nerve Fibers/ultrastructure ; Neural Conduction ; Neural Pathways/anatomy & histology/*growth & development ; Regression Analysis ; Speech ; Spinal Cord/anatomy & histology ; Synaptic Transmission ; Temporal Lobe/anatomy & histology/growth & development
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    Biotech patents. Genentech, UC settle suit for $200 million (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1999 Nov 26;286(5445):1655.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10610555" target="_blank"〉PubMed〈/a〉
    Keywords: Biotechnology/*legislation & jurisprudence ; California ; Cloning, Molecular ; *Human Growth Hormone/genetics ; *Patents as Topic ; Universities/*legislation & jurisprudence
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    Real-time tracking of memory formation in the human rhinal cortex and hippocampus (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-09-08
    Description: A fundamental question about human memory is which brain structures are involved, and when, in transforming experiences into memories. This experiment sought to identify neural correlates of memory formation with the use of intracerebral electrodes implanted in the brains of patients with temporal lobe epilepsy. Event-related potentials (ERPs) were recorded directly from the medial temporal lobe (MTL) as the patients studied single words. ERPs elicited by words subsequently recalled in a memory test were contrasted with ERPs elicited by unrecalled words. Memory formation was associated with distinct but interrelated ERP differences within the rhinal cortex and the hippocampus, which arose after about 300 and 500 milliseconds, respectively. These findings suggest that declarative memory formation is dissociable into subprocesses and sequentially organized within the MTL.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fernandez, G -- Effern, A -- Grunwald, T -- Pezer, N -- Lehnertz, K -- Dumpelmann, M -- Van Roost, D -- Elger, C E -- New York, N.Y. -- Science. 1999 Sep 3;285(5433):1582-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Epileptology, University of Bonn, 53105 Bonn, Germany. gf@mailer.meb.uni-bonn.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10477525" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Analysis of Variance ; Brain Mapping ; Electrodes, Implanted ; Epilepsy, Temporal Lobe/physiopathology ; Evoked Potentials ; Female ; Hippocampus/*physiology ; Humans ; Magnetic Resonance Imaging ; Male ; Memory/*physiology ; Mental Recall/*physiology ; Middle Aged ; Neurons/physiology ; Temporal Lobe/*physiology ; Time Factors
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    Prospects for in utero human gene therapy (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-10-16
    Description: Gene therapy for the treatment of disease in children and adults is being actively pursued at many medical centers. However, a number of genetic disorders result in irreversible damage to the fetus before birth. In these cases, as well as for those with genetic diseases who may benefit from therapy before symptoms are manifested, in utero gene therapy (IUGT) could be beneficial. Although some successes with in utero gene transfer have been reported in animals, significant questions remain to be answered before IUGT clinical trials would be acceptable. This review analyzes the state of the art and delineates the studies that still need to be performed before it would be appropriate to consider human IUGT.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zanjani, E D -- Anderson, W F -- New York, N.Y. -- Science. 1999 Sep 24;285(5436):2084-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Veterans Administration Medical Center, University of Nevada, Reno, NV 89520, USA. zanjani@scs.unr.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10523208" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Female ; Fetal Diseases/*therapy ; *Fetus ; Gene Transfer Techniques ; Genetic Diseases, Inborn/*therapy ; *Genetic Therapy/adverse effects ; Genetic Vectors ; Germ Cells ; Hematopoietic Stem Cell Transplantation ; Hematopoietic Stem Cells/cytology/physiology ; Humans ; Pregnancy
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    Sex in an age of mechanical reproduction (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Djerassi, C -- New York, N.Y. -- Science. 1999 Jul 2;285(5424):53-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, Stanford University, Stanford, CA 94305-5080, USA. djerassi@stanford.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10428703" target="_blank"〉PubMed〈/a〉
    Keywords: *Bioethics ; Female ; *Fertilization in Vitro ; Humans ; Male ; Posthumous Conception ; *Reproductive Techniques
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    Signaling of cell fate decisions by CLAVATA3 in Arabidopsis shoot meristems (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-03-19
    Description: In higher plants, organogenesis occurs continuously from self-renewing apical meristems. Arabidopsis thaliana plants with loss-of-function mutations in the CLAVATA (CLV1, 2, and 3) genes have enlarged meristems and generate extra floral organs. Genetic analysis indicates that CLV1, which encodes a receptor kinase, acts with CLV3 to control the balance between meristem cell proliferation and differentiation. CLV3 encodes a small, predicted extracellular protein. CLV3 acts nonautonomously in meristems and is expressed at the meristem surface overlying the CLV1 domain. These proteins may act as a ligand-receptor pair in a signal transduction pathway, coordinating growth between adjacent meristematic regions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fletcher, J C -- Brand, U -- Running, M P -- Simon, R -- Meyerowitz, E M -- New York, N.Y. -- Science. 1999 Mar 19;283(5409):1911-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10082464" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Arabidopsis/*cytology/genetics/growth & development/metabolism ; *Arabidopsis Proteins ; Cell Differentiation ; Cell Division ; Cloning, Molecular ; Gene Expression Regulation, Plant ; Genes, Plant ; In Situ Hybridization ; Ligands ; Meristem/*cytology/growth & development/metabolism ; Molecular Sequence Data ; Mutation ; Phenotype ; Plant Proteins/chemistry/genetics/*metabolism ; Plant Shoots/cytology ; RNA, Messenger/genetics/metabolism ; RNA, Plant/genetics/metabolism ; Receptor Protein-Tyrosine Kinases/genetics/metabolism ; Recombinant Fusion Proteins/metabolism ; *Signal Transduction
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    Breast cancer detection (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-05-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Joseph, L P -- New York, N.Y. -- Science. 1999 Apr 30;284(5415):743.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10336395" target="_blank"〉PubMed〈/a〉
    Keywords: Breast Neoplasms/*diagnosis/etiology/radiography ; Female ; Humans ; Mammography/*adverse effects ; Neoplasms, Radiation-Induced/etiology ; *Thermography
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    A nucleoside transporter from Trypanosoma brucei involved in drug resistance (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-10
    Description: Drug resistance of pathogens is an increasing problem whose underlying mechanisms are not fully understood. Cellular uptake of the major drugs against Trypanosoma brucei spp., the causative agents of sleeping sickness, is thought to occur through an unusual, so far unidentified adenosine transporter. Saccharomyces cerevisiae was used in a functional screen to clone a gene (TbAT1) from Trypanosoma brucei brucei that encodes a nucleoside transporter. When expressed in yeast, TbAT1 enabled adenosine uptake and conferred susceptibility to melaminophenyl arsenicals. Drug-resistant trypanosomes harbor a defective TbAT1 variant. The molecular identification of the entry route of trypanocides opens the way to approaches for diagnosis and treatment of drug-resistant sleeping sickness.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maser, P -- Sutterlin, C -- Kralli, A -- Kaminsky, R -- New York, N.Y. -- Science. 1999 Jul 9;285(5425):242-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Swiss Tropical Institute, CH-4002 Basel, Switzerland. Biozentrum, University of Basel, CH-4056 Basel, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10398598" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine/*metabolism ; Amino Acid Sequence ; Animals ; Arsenicals/metabolism/pharmacology ; Biological Transport ; Carrier Proteins/chemistry/genetics/*metabolism ; Cloning, Molecular ; Drug Resistance/genetics ; Genes, Protozoan ; Membrane Proteins/chemistry/genetics/*metabolism ; Molecular Sequence Data ; Mutation ; Nucleoside Transport Proteins ; Nucleosides/metabolism ; Purines/metabolism/pharmacology ; Saccharomyces cerevisiae/genetics ; Substrate Specificity ; Trypanocidal Agents/metabolism/*pharmacology ; Trypanosoma brucei brucei/*drug effects/genetics/*metabolism ; Trypanosomiasis, African/drug therapy/parasitology
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    A cyclic antimicrobial peptide produced in primate leukocytes by the ligation of two truncated alpha-defensins (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-10-16
    Description: Analysis of rhesus macaque leukocytes disclosed the presence of an 18-residue macrocyclic, tridisulfide antibiotic peptide in granules of neutrophils and monocytes. The peptide, termed rhesus theta defensin-1 (RTD-1), is microbicidal for bacteria and fungi at low micromolar concentrations. Antibacterial activity of the cyclic peptide was threefold greater than that of an open-chain analog, and the cyclic conformation was required for antimicrobial activity in the presence of 150 millimolar sodium chloride. Biosynthesis of RTD-1 involves the head-to-tail ligation of two alpha-defensin-related nonapeptides, requiring the formation of two new peptide bonds. Thus, host defense cells possess mechanisms for synthesis and granular packaging of macrocyclic antibiotic peptides that are components of the phagocyte antimicrobial armamentarium.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tang, Y Q -- Yuan, J -- Osapay, G -- Osapay, K -- Tran, D -- Miller, C J -- Ouellette, A J -- Selsted, M E -- AI22931/AI/NIAID NIH HHS/ -- DK33506/DK/NIDDK NIH HHS/ -- DK44632/DK/NIDDK NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1999 Oct 15;286(5439):498-502.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, College of Medicine, University of California, Irvine, CA 92697, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10521339" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Anti-Bacterial Agents ; Anti-Infective Agents/chemistry/*metabolism/pharmacology ; Bacteria/drug effects ; Cloning, Molecular ; Defensins ; Disulfides/chemistry ; Fungi/drug effects ; Humans ; Leukopoiesis ; Macaca mulatta ; Molecular Sequence Data ; Monocytes/*metabolism ; Neutrophils/*metabolism ; Oligopeptides/chemistry/genetics/metabolism ; Osmolar Concentration ; Peptides, Cyclic/*biosynthesis/chemistry/genetics/pharmacology ; *Protein Biosynthesis ; Protein Conformation ; Protein Precursors/chemistry/genetics/metabolism ; Protein Processing, Post-Translational ; Proteins/chemistry/genetics/pharmacology
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    Rapid infection of oral mucosal-associated lymphoid tissue with simian immunodeficiency virus (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-08-24
    Description: The early events during infection with an immunodeficiency virus were followed by application of pathogenic simian immunodeficiency virus atraumatically to the tonsils of macaques. Analyses by virologic assays and in situ hybridization revealed that the infection started locally in the tonsils, a mucosal-associated lymphoid organ, and quickly spread to other lymphoid tissues. At day 3, there were few infected cells, but then the number increased rapidly, reaching a high plateau between days 4 and 7. The infection was not detected in the dendritic cell-rich squamous epithelium to which the virus was applied; instead, it was primarily in CD4+ tonsillar T cells, close to the specialized antigen-transporting epithelium of the tonsillar crypts. Transport of the virus and immune-activating stimuli across this epithelium would allow mucosal lymphoid tissue to function in the atraumatic transmission of immunodeficiency viruses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stahl-Hennig, C -- Steinman, R M -- Tenner-Racz, K -- Pope, M -- Stolte, N -- Matz-Rensing, K -- Grobschupff, G -- Raschdorff, B -- Hunsmann, G -- Racz, P -- AI 40874/AI/NIAID NIH HHS/ -- AI 40877/AI/NIAID NIH HHS/ -- AI 42129/AI/NIAID NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1999 Aug 20;285(5431):1261-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉German Primate Center, 37077 Gottingen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10455052" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; CD4-Positive T-Lymphocytes/virology ; Epithelium/virology ; Female ; In Situ Hybridization ; Leukocytes, Mononuclear/virology ; Lymph Nodes/virology ; Lymphoid Tissue/*virology ; Macaca mulatta ; Male ; Mouth Mucosa/*virology ; Palatine Tonsil/*virology ; Simian Acquired Immunodeficiency Syndrome/transmission/*virology ; Simian Immunodeficiency Virus/*physiology ; Viral Load ; Virus Replication
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    Interaction of short-range repressors with Drosophila CtBP in the embryo (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-04-29
    Description: Human CtBP attenuates transcriptional activation and tumorigenesis mediated by the adenovirus E1A protein. The E1A sequence motif that interacts with CtBP, Pro-X-Asp-Leu-Ser-X-Lys (P-DLS-K), is present in the repression domains of two unrelated short-range repressors in Drosophila, Knirps and Snail, and is essential for the interaction of these proteins with Drosophila CtBP (dCtBP). A P-element-induced mutation in dCtBP exhibits gene-dosage interactions with a null mutation in knirps, which is consistent with the occurrence of Knirps-dCtBP interactions in vivo. These observations suggest that CtBP and dCtBP are engaged in an evolutionarily conserved mechanism of transcriptional repression, which is used in both Drosophila and mammals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nibu, Y -- Zhang, H -- Levine, M -- GM46638/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1998 Apr 3;280(5360):101-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cellular Biology, Division of Genetics, 401 Barker Hall, University of California, Berkeley, CA 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9525852" target="_blank"〉PubMed〈/a〉
    Keywords: Alcohol Oxidoreductases ; Amino Acid Sequence ; Animals ; Animals, Genetically Modified ; Cell Nucleus/metabolism ; DNA-Binding Proteins/chemistry/genetics/*metabolism ; Drosophila/*embryology/genetics/metabolism ; *Drosophila Proteins ; Embryo, Nonmammalian/metabolism ; Female ; Gene Dosage ; *Gene Expression Regulation ; Genes, Insect ; Genes, Reporter ; Humans ; Insect Proteins/genetics/metabolism ; Male ; Molecular Sequence Data ; Mutation ; Phosphoproteins/chemistry/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Repressor Proteins/chemistry/genetics/*metabolism ; *Transcription Factors ; *Transcription, Genetic
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    IEX-1L, an apoptosis inhibitor involved in NF-kappaB-mediated cell survival (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-08-14
    Description: Transcription factors of the nuclear factor-kappaB/rel (NF-kappaB) family may be important in cell survival by regulating unidentified, anti-apoptotic genes. One such gene that protects cells from apoptosis induced by Fas or tumor necrosis factor type alpha (TNF), IEX-1L, is described here. Its transcription induced by TNF was decreased in cells with defective NF-kappaB activation, rendering them sensitive to TNF-induced apoptosis, which was abolished by transfection with IEX-1L. In support, overexpression of antisense IEX-1L partially blocked TNF-induced expression of IEX-1L and sensitized normal cells to killing. This study demonstrates a key role of IEX-1L in cellular resistance to TNF-induced apoptosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wu, M X -- Ao, Z -- Prasad, K V -- Wu, R -- Schlossman, S F -- AI12069/AI/NIAID NIH HHS/ -- P30AI28691/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1998 Aug 14;281(5379):998-1001.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Tumor Immunology, Dana-Farber Cancer Institute, and the Department of Medicine, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9703517" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD95/physiology ; Apoptosis/genetics/*physiology ; Apoptosis Regulatory Proteins ; Cell Line ; Cell Survival ; Cloning, Molecular ; DNA, Antisense/genetics ; Gene Expression Regulation ; Genetic Vectors ; Humans ; Immediate-Early Proteins/genetics/*physiology ; Jurkat Cells ; Membrane Glycoproteins/genetics/*physiology ; Membrane Proteins ; Mice ; NF-kappa B/*physiology ; *Neoplasm Proteins ; Transfection ; Tumor Necrosis Factor-alpha/physiology
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    The future of long life (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-10-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gavrilov, L A -- Gavrilova, N S -- New York, N.Y. -- Science. 1998 Sep 11;281(5383):1611-2; author reply 1613-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9767024" target="_blank"〉PubMed〈/a〉
    Keywords: Female ; Forecasting ; Humans ; Life Expectancy/*trends ; *Longevity ; Male ; *Mortality/trends ; United States
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    Year of the cat--in more ways than one (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-07-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Garber, K -- New York, N.Y. -- Science. 1998 Jun 19;280(5371):1841.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9669935" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cats/*genetics ; *Chromosome Mapping ; Crosses, Genetic ; Disease Models, Animal ; Female ; Genetic Diseases, Inborn/genetics ; *Genome ; Humans ; Male ; Microsatellite Repeats
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    A blow to the 'grandmother theory' (1998)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1998-05-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibbons, A -- New York, N.Y. -- Science. 1998 Apr 24;280(5363):516.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9575094" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Female ; Humans ; Life Expectancy ; Lions/*physiology ; *Longevity ; Menopause ; Papio/*physiology ; *Reproduction
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    alpha-Synuclein gene and Parkinson's disease. The French Parkinson's Disease Study Group (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1998 Feb 20;279(5354):1116-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9508681" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; Chromosomes, Human, Pair 4 ; Female ; France ; Genes, Dominant ; Humans ; Italy ; Male ; Middle Aged ; Mutation ; Nerve Tissue Proteins/*genetics ; Parkinson Disease/*genetics ; Synucleins ; alpha-Synuclein
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Multiplying knowledge of cell division, plant growth (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-10-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Normile, D -- New York, N.Y. -- Science. 1998 Sep 11;281(5383):1591,1593.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9767022" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arabidopsis/cytology/genetics/*growth & development ; Cell Communication ; *Cell Differentiation ; Cell Division ; Drosophila/cytology/*genetics ; Female ; Genes, Insect ; Genes, Plant ; Oocytes/cytology ; Ovary/cytology ; Stem Cells/*cytology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Control of alternative splicing of potassium channels by stress hormones (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-05-09
    Description: Many molecular mechanisms for neural adaptation to stress remain unknown. Expression of alternative splice variants of Slo, a gene encoding calcium- and voltage-activated potassium channels, was measured in rat adrenal chromaffin tissue from normal and hypophysectomized animals. Hypophysectomy triggered an abrupt decrease in the proportion of Slo transcripts containing a "STREX" exon. The decrease was prevented by adrenocorticotropic hormone injections. In Xenopus oocytes, STREX variants produced channels with functional properties associated with enhanced repetitive firing. Thus, the hormonal stress axis is likely to control the excitable properties of epinephrine-secreting cells by regulating alternative splicing of Slo messenger RNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xie, J -- McCobb, D P -- New York, N.Y. -- Science. 1998 Apr 17;280(5362):443-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9545224" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenal Medulla/*metabolism ; Adrenocorticotropic Hormone/metabolism/*pharmacology ; *Alternative Splicing ; Amino Acid Sequence ; Animals ; Chromaffin Cells/*metabolism ; Corticosterone/blood/*metabolism ; Dexamethasone/pharmacology ; Epinephrine/secretion ; Exons ; Female ; Hypophysectomy ; Large-Conductance Calcium-Activated Potassium Channel alpha Subunits ; Large-Conductance Calcium-Activated Potassium Channels ; Male ; Molecular Sequence Data ; Oocytes ; Phenylethanolamine N-Methyltransferase/genetics ; Polymerase Chain Reaction ; Potassium Channels/*genetics ; *Potassium Channels, Calcium-Activated ; RNA, Messenger/genetics/metabolism ; Rats ; Rats, Sprague-Dawley ; Xenopus
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    Role of the CLOCK protein in the mammalian circadian mechanism (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-06-11
    Description: The mouse Clock gene encodes a bHLH-PAS protein that regulates circadian rhythms and is related to transcription factors that act as heterodimers. Potential partners of CLOCK were isolated in a two-hybrid screen, and one, BMAL1, was coexpressed with CLOCK and PER1 at known circadian clock sites in brain and retina. CLOCK-BMAL1 heterodimers activated transcription from E-box elements, a type of transcription factor-binding site, found adjacent to the mouse per1 gene and from an identical E-box known to be important for per gene expression in Drosophila. Mutant CLOCK from the dominant-negative Clock allele and BMAL1 formed heterodimers that bound DNA but failed to activate transcription. Thus, CLOCK-BMAL1 heterodimers appear to drive the positive component of per transcriptional oscillations, which are thought to underlie circadian rhythmicity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gekakis, N -- Staknis, D -- Nguyen, H B -- Davis, F C -- Wilsbacher, L D -- King, D P -- Takahashi, J S -- Weitz, C J -- New York, N.Y. -- Science. 1998 Jun 5;280(5369):1564-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Harvard Medical School, Boston MA 02115, USA. 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9616112" target="_blank"〉PubMed〈/a〉
    Keywords: ARNTL Transcription Factors ; Animals ; Basic Helix-Loop-Helix Transcription Factors ; Biological Clocks ; CLOCK Proteins ; Cell Cycle Proteins ; Circadian Rhythm/genetics/*physiology ; Cloning, Molecular ; Cricetinae ; DNA/metabolism ; Dimerization ; Feedback ; Gene Expression ; Helix-Loop-Helix Motifs ; Male ; Mesocricetus ; Mice ; Mutation ; Nuclear Proteins/*genetics/metabolism ; Period Circadian Proteins ; Promoter Regions, Genetic ; Retina/metabolism ; Suprachiasmatic Nucleus/metabolism ; Trans-Activators/genetics/*metabolism ; Transcription Factors/genetics/*metabolism ; *Transcriptional Activation
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    Functional expression of a mammalian odorant receptor (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-01-31
    Description: Candidate mammalian odorant receptors were first cloned some 6 years ago. The physiological function of these receptors in initiating transduction in olfactory receptor neurons remains to be established. Here, a recombinant adenovirus was used to drive expression of a particular receptor gene in an increased number of sensory neurons in the rat olfactory epithelium. Electrophysiological recording showed that increased expression of a single gene led to greater sensitivity to a small subset of odorants.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhao, H -- Ivic, L -- Otaki, J M -- Hashimoto, M -- Mikoshiba, K -- Firestein, S -- New York, N.Y. -- Science. 1998 Jan 9;279(5348):237-42.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Interdepartmental Neuroscience Program, Yale University, New Haven, CT 06510, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9422698" target="_blank"〉PubMed〈/a〉
    Keywords: Adenoviridae/genetics/physiology ; Aldehydes/metabolism/*pharmacology ; Animals ; Electrophysiology ; Female ; Gene Expression ; Genetic Vectors ; Green Fluorescent Proteins ; Luminescent Proteins/analysis/genetics ; Male ; *Odors ; Olfactory Receptor Neurons/*physiology/virology ; Patch-Clamp Techniques ; Rats ; Rats, Sprague-Dawley ; Receptors, Odorant/genetics/metabolism/*physiology ; Recombinant Proteins
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    Sphingosine-1-phosphate as a ligand for the G protein-coupled receptor EDG-1 (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-21
    Description: The sphingolipid metabolite sphingosine-1-phosphate (SPP) has been implicated as a second messenger in cell proliferation and survival. However, many of its biological effects are due to binding to unidentified receptors on the cell surface. SPP activated the heterotrimeric guanine nucleotide binding protein (G protein)-coupled orphan receptor EDG-1, originally cloned as Endothelial Differentiation Gene-1. EDG-1 bound SPP with high affinity (dissociation constant = 8.1 nM) and high specificity. Overexpression of EDG-1 induced exaggerated cell-cell aggregation, enhanced expression of cadherins, and formation of well-developed adherens junctions in a manner dependent on SPP and the small guanine nucleotide binding protein Rho.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, M J -- Van Brocklyn, J R -- Thangada, S -- Liu, C H -- Hand, A R -- Menzeleev, R -- Spiegel, S -- Hla, T -- DK45659/DK/NIDDK NIH HHS/ -- GM43880/GM/NIGMS NIH HHS/ -- HL49094/HL/NHLBI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1998 Mar 6;279(5356):1552-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, University of Connecticut School of Medicine, Farmington, CT 06030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9488656" target="_blank"〉PubMed〈/a〉
    Keywords: Cadherins/*biosynthesis ; *Cell Aggregation ; Cell Differentiation ; Cell Line ; Cloning, Molecular ; GTP-Binding Proteins/metabolism ; Gene Expression ; Genes, Immediate-Early ; Humans ; Immediate-Early Proteins/genetics/*metabolism ; Intercellular Junctions/*ultrastructure ; Ligands ; *Lysophospholipids ; Mitogen-Activated Protein Kinase 1/metabolism ; Morphogenesis ; Receptors, Cell Surface/genetics/*metabolism ; *Receptors, G-Protein-Coupled ; Receptors, Lysophospholipid ; Signal Transduction ; Sphingosine/*analogs & derivatives/metabolism ; Transfection ; rho GTP-Binding Proteins
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    Fertilization defects in sperm from mice lacking fertilin beta (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-09-22
    Description: Fertilin, a member of the ADAM family, is found on the plasma membrane of mammalian sperm. Sperm from mice lacking fertilin beta were shown to be deficient in sperm-egg membrane adhesion, sperm-egg fusion, migration from the uterus into the oviduct, and binding to the egg zona pellucida. Egg activation was unaffected. The results are consistent with a direct role of fertilin in sperm-egg plasma membrane interaction. Fertilin could also have a direct role in sperm-zona binding or oviduct migration; alternatively, the effects on these functions could result from the absence of fertilin activity during spermatogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cho, C -- Bunch, D O -- Faure, J E -- Goulding, E H -- Eddy, E M -- Primakoff, P -- Myles, D G -- HD16580/HD/NICHD NIH HHS/ -- U54HD29125/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1998 Sep 18;281(5384):1857-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Molecular and Cellular Biology, University of California, Davis, CA 95616, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9743500" target="_blank"〉PubMed〈/a〉
    Keywords: ADAM Proteins ; Animals ; Calcium/metabolism ; Cell Adhesion ; Cell Membrane/physiology ; Fallopian Tubes ; Female ; Male ; Membrane Fusion ; Membrane Glycoproteins/genetics/metabolism/*physiology ; Metalloendopeptidases/genetics/metabolism/*physiology ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Ovum/physiology ; Sperm Capacitation ; *Sperm-Ovum Interactions ; Spermatogenesis ; Spermatozoa/chemistry/*physiology ; Zona Pellucida/physiology
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  • 80
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    Crystal structure and evolution of a transfer RNA splicing enzyme (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-05-02
    Description: The splicing of transfer RNA precursors is similar in Eucarya and Archaea. In both kingdoms an endonuclease recognizes the splice sites and releases the intron, but the mechanism of splice site recognition is different in each kingdom. The crystal structure of the endonuclease from the archaeon Methanococcus jannaschii was determined to a resolution of 2.3 angstroms. The structure indicates that the cleavage reaction is similar to that of ribonuclease A and the arrangement of the active sites is conserved between the archaeal and eucaryal enzymes. These results suggest an evolutionary pathway for splice site recognition.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, H -- Trotta, C R -- Abelson, J -- F32 GM188930-01/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1998 Apr 10;280(5361):279-84.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biology, Mail Code 147-75, California Institute of Technology, Pasadena, CA 91125, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9535656" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites ; Catalysis ; Cloning, Molecular ; Crystallography, X-Ray ; Dimerization ; Endoribonucleases/*chemistry/genetics/metabolism ; *Evolution, Molecular ; HIV Long Terminal Repeat ; Hydrogen Bonding ; Methanococcus/*enzymology/genetics ; Models, Molecular ; Molecular Sequence Data ; *Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; RNA Precursors/chemistry/metabolism ; *RNA Splicing ; RNA, Archaeal/chemistry/metabolism ; Saccharomyces cerevisiae/enzymology
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    ART into science: regulation of fertility techniques. ISLAT (Institute for Science Law, and Technology) Working Group (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-08-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1998 Jul 31;281(5377):651-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9714673" target="_blank"〉PubMed〈/a〉
    Keywords: Data Collection ; Disclosure ; Embryo Transfer ; Federal Government ; Female ; *Government Regulation ; Humans ; Information Dissemination ; Informed Consent ; Licensure ; Male ; Practice Guidelines as Topic ; Records as Topic ; Reproductive Techniques/adverse effects/*legislation & jurisprudence/*standards ; United States
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    Identification of a cullin homology region in a subunit of the anaphase-promoting complex (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-21
    Description: The anaphase-promoting complex is composed of eight protein subunits, including BimE (APC1), CDC27 (APC3), CDC16 (APC6), and CDC23 (APC8). The remaining four human APC subunits, APC2, APC4, APC5, and APC7, as well as human CDC23, were cloned. APC7 contains multiple copies of the tetratrico peptide repeat, similar to CDC16, CDC23, and CDC27. Whereas APC4 and APC5 share no similarity to proteins of known function, APC2 contains a region that is similar to a sequence in cullins, a family of proteins implicated in the ubiquitination of G1 phase cyclins and cyclin-dependent kinase inhibitors. The APC2 gene is essential in Saccharomyces cerevisiae, and apc2 mutants arrest at metaphase and are defective in the degradation of Pds1p. APC2 and cullins may be distantly related members of a ubiquitin ligase family that targets cell cycle regulators for degradation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yu, H -- Peters, J M -- King, R W -- Page, A M -- Hieter, P -- Kirschner, M W -- CA16519/CA/NCI NIH HHS/ -- GM26875-17/GM/NIGMS NIH HHS/ -- GM39023-08/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1998 Feb 20;279(5354):1219-22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Harvard Medical School, 240 Longwood Avenue, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9469815" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; *Anaphase ; Anaphase-Promoting Complex-Cyclosome ; Animals ; Apc1 Subunit, Anaphase-Promoting Complex-Cyclosome ; Apc2 Subunit, Anaphase-Promoting Complex-Cyclosome ; Apc4 Subunit, Anaphase-Promoting Complex-Cyclosome ; Apc5 Subunit, Anaphase-Promoting Complex-Cyclosome ; Apc7 Subunit, Anaphase-Promoting Complex-Cyclosome ; Apc8 Subunit, Anaphase-Promoting Complex-Cyclosome ; Cell Cycle/*physiology ; Cell Cycle Proteins/chemistry ; Cloning, Molecular ; *Cullin Proteins ; Helminth Proteins/chemistry ; Humans ; Ligases/*chemistry/genetics/metabolism ; Molecular Sequence Data ; Mutation ; Open Reading Frames ; Phylogeny ; Proteins/chemistry ; Saccharomyces cerevisiae/chemistry/cytology/genetics ; *Saccharomyces cerevisiae Proteins ; Sequence Alignment ; *Ubiquitin-Protein Ligase Complexes ; Ubiquitin-Protein Ligases
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    A genomic battle of the sexes (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-10-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1998 Sep 25;281(5385):1984-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9767051" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arabidopsis/embryology/genetics ; *Biological Evolution ; Embryonic and Fetal Development/*genetics ; Female ; Genes, Plant ; *Genomic Imprinting ; Humans ; Insects/*genetics ; Male ; Peromyscus ; Seeds/*growth & development
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    Axonal swellings and degeneration in mice lacking the major proteolipid of myelin (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-06-11
    Description: Glial cells produce myelin and contribute to axonal morphology in the nervous system. Two myelin membrane proteolipids, PLP and DM20, were shown to be essential for the integrity of myelinated axons. In the absence of PLP-DM20, mice assembled compact myelin sheaths but subsequently developed widespread axonal swellings and degeneration, associated predominantly with small-caliber nerve fibers. Similar swellings were absent in dysmyelinated shiverer mice, which lack myelin basic protein (MBP), but recurred in MBP*PLP double mutants. Thus, fiber degeneration, which was probably secondary to impaired axonal transport, could indicate that myelinated axons require local oligodendroglial support.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Griffiths, I -- Klugmann, M -- Anderson, T -- Yool, D -- Thomson, C -- Schwab, M H -- Schneider, A -- Zimmermann, F -- McCulloch, M -- Nadon, N -- Nave, K A -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1998 Jun 5;280(5369):1610-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Applied Neurobiology Group, Department of Veterinary Clinical Studies, University of Glasgow, Glasgow G61 1QH, Scotland, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9616125" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axonal Transport ; Axons/*physiology/*ultrastructure ; Cell Communication ; Central Nervous System/*ultrastructure ; Female ; Mice ; Mice, Neurologic Mutants ; Models, Neurological ; Motor Activity ; Myelin Proteolipid Protein/analysis/genetics/*physiology ; Myelin Sheath/chemistry/physiology/ultrastructure ; Nerve Degeneration/*pathology ; *Nerve Tissue Proteins ; Oligodendroglia/physiology ; Optic Nerve/ultrastructure ; Organelles/ultrastructure ; Spinal Cord/ultrastructure ; Transgenes
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    Jumbo gene offers clue to Parkinson's (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-05-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stone, M -- New York, N.Y. -- Science. 1998 Apr 10;280(5361):203.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9565530" target="_blank"〉PubMed〈/a〉
    Keywords: Chromosome Mapping ; Chromosomes, Human, Pair 6/genetics ; Cloning, Molecular ; Humans ; *Ligases ; Mutation ; Parkinson Disease/*genetics/metabolism ; Proteins/chemistry/*genetics/physiology ; Substantia Nigra/metabolism ; *Ubiquitin-Protein Ligases
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  • 86
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    Females pick good genes in frogs, flies (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-07-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1998 Jun 19;280(5371):1837-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9669933" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anura/*genetics/physiology ; Diptera/*genetics/physiology ; Eye/anatomy & histology ; Female ; *Genes ; Male ; Sex Ratio ; *Sexual Behavior, Animal ; Vocalization, Animal
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    A calcium sensor homolog required for plant salt tolerance (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-06-25
    Description: Excessive sodium (Na+) in salinized soils inhibits plant growth and development. A mutation in the SOS3 gene renders Arabidopsis thaliana plants hypersensitive to Na+-induced growth inhibition. SOS3 encodes a protein that shares significant sequence similarity with the calcineurin B subunit from yeast and neuronal calcium sensors from animals. The results suggest that intracellular calcium signaling through a calcineurin-like pathway mediates the beneficial effect of calcium on plant salt tolerance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, J -- Zhu, J K -- New York, N.Y. -- Science. 1998 Jun 19;280(5371):1943-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Sciences, University of Arizona, Tucson, AZ 85721, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9632394" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Arabidopsis/*genetics/*growth & development/metabolism ; *Arabidopsis Proteins ; Binding Sites ; Calcineurin/chemistry ; Calcium/*metabolism/pharmacology ; Calcium-Binding Proteins/chemistry ; Chromosome Mapping ; Cloning, Molecular ; Genes, Plant ; Ion Transport ; Molecular Sequence Data ; Mutation ; Open Reading Frames ; Plant Proteins/*chemistry/*genetics ; Saccharomyces cerevisiae/chemistry ; Signal Transduction ; Sodium/metabolism/*pharmacology
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    Molecular analysis of cellulose biosynthesis in Arabidopsis (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-02-21
    Description: Cellulose, an abundant, crystalline polysaccharide, is central to plant morphogenesis and to many industries. Chemical and ultrastructural analyses together with map-based cloning indicate that the RSW1 locus of Arabidopsis encodes the catalytic subunit of cellulose synthase. The cloned gene complements the rsw1 mutant whose temperature-sensitive allele is changed in one amino acid. The mutant allele causes a specific reduction in cellulose synthesis, accumulation of noncrystalline beta-1,4-glucan, disassembly of cellulose synthase, and widespread morphological abnormalities. Microfibril crystallization may require proper assembly of the RSW1 gene product into synthase complexes whereas glucan biosynthesis per se does not.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arioli, T -- Peng, L -- Betzner, A S -- Burn, J -- Wittke, W -- Herth, W -- Camilleri, C -- Hofte, H -- Plazinski, J -- Birch, R -- Cork, A -- Glover, J -- Redmond, J -- Williamson, R E -- New York, N.Y. -- Science. 1998 Jan 30;279(5351):717-20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cooperative Research Centre for Plant Science, Australian National University, Post Office Box 475, Canberra, ACT 2601, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9445479" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Arabidopsis/enzymology/*genetics/*metabolism ; *Arabidopsis Proteins ; Cell Membrane/chemistry/ultrastructure ; Cellulose/*biosynthesis/chemistry/genetics ; Chromosome Mapping ; Cloning, Molecular ; Crystallization ; Freeze Fracturing ; *Genes, Plant ; Genetic Complementation Test ; Glucans/metabolism ; Glucosyltransferases/chemistry/*genetics ; Molecular Sequence Data ; Mutation ; Plant Roots/chemistry/ultrastructure ; Plant Shoots/chemistry
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Prevention of cardiac hypertrophy in mice by calcineurin inhibition (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-09-11
    Description: Hypertrophic cardiomyopathy (HCM) is an inherited form of heart disease that affects 1 in 500 individuals. Here it is shown that calcineurin, a calcium-regulated phosphatase, plays a critical role in the pathogenesis of HCM. Administration of the calcineurin inhibitors cyclosporin and FK506 prevented disease in mice that were genetically predisposed to develop HCM as a result of aberrant expression of tropomodulin, myosin light chain-2, or fetal beta-tropomyosin in the heart. Cyclosporin had a similar effect in a rat model of pressure-overload hypertrophy. These results suggest that calcineurin inhibitors merit investigation as potential therapeutics for certain forms of human heart disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sussman, M A -- Lim, H W -- Gude, N -- Taigen, T -- Olson, E N -- Robbins, J -- Colbert, M C -- Gualberto, A -- Wieczorek, D F -- Molkentin, J D -- HL58224-01/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1998 Sep 11;281(5383):1690-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Molecular Cardiovascular Biology, Children's Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH 45229, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9733519" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcineurin/metabolism ; *Calcineurin Inhibitors ; Calcium/metabolism ; *Cardiac Myosins ; Cardiomegaly/metabolism/pathology/*prevention & control ; Cardiomyopathy, Dilated/pathology/*prevention & control ; Cardiomyopathy, Hypertrophic/genetics/metabolism/pathology/*prevention & control ; Carrier Proteins/genetics ; Cyclosporine/*pharmacology ; Female ; Mice ; Mice, Transgenic ; *Microfilament Proteins ; Models, Cardiovascular ; Myocardium/*metabolism/pathology ; Myosin Light Chains/genetics/metabolism ; Rats ; Signal Transduction ; Tacrolimus/*pharmacology ; Tropomodulin ; Tropomyosin/genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 90
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    Genetics of mouse behavior: interactions with laboratory environment (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-06-05
    Description: Strains of mice that show characteristic patterns of behavior are critical for research in neurobehavioral genetics. Possible confounding influences of the laboratory environment were studied in several inbred strains and one null mutant by simultaneous testing in three laboratories on a battery of six behaviors. Apparatus, test protocols, and many environmental variables were rigorously equated. Strains differed markedly in all behaviors, and despite standardization, there were systematic differences in behavior across labs. For some tests, the magnitude of genetic differences depended upon the specific testing lab. Thus, experiments characterizing mutants may yield results that are idiosyncratic to a particular laboratory.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Crabbe, J C -- Wahlsten, D -- Dudek, B C -- AA00170/AA/NIAAA NIH HHS/ -- AA10760/AA/NIAAA NIH HHS/ -- DA10731/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 1999 Jun 4;284(5420):1670-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Portland Alcohol Research Center, Department of Veterans Affairs Medical Center, Portland, OR 97201, USA. crabbe@ohsu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10356397" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Laboratory/genetics ; Anxiety ; *Behavior, Animal ; Confounding Factors (Epidemiology) ; Drinking Behavior ; *Environment ; Female ; Genetics, Behavioral/*methods ; Genotype ; Male ; Mice ; Mice, Inbred Strains/genetics ; Mice, Mutant Strains/genetics ; Motor Activity ; Psychological Tests ; Reproducibility of Results
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 91
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    An allele of COL9A2 associated with intervertebral disc disease (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-20
    Description: Intervertebral disc disease is one of the most common musculoskeletal disorders. A number of environmental and anthropometric risk factors may contribute to it, and recent reports have suggested the importance of genetic factors as well. The COL9A2 gene, which codes for one of the polypeptide chains of collagen IX that is expressed in the intervertebral disc, was screened for sequence variations in individuals with intervertebral disc disease. The analysis identified a putative disease-causing sequence variation that converted a codon for glutamine to one for tryptophan in six out of the 157 individuals but in none of 174 controls. The tryptophan allele cosegregated with the disease phenotype in the four families studied, giving a lod score (logarithm of odds ratio) for linkage of 4.5, and subsequent linkage disequilibrium analysis conditional on linkage gave an additional lod score of 7.1.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Annunen, S -- Paassilta, P -- Lohiniva, J -- Perala, M -- Pihlajamaa, T -- Karppinen, J -- Tervonen, O -- Kroger, H -- Lahde, S -- Vanharanta, H -- Ryhanen, L -- Goring, H H -- Ott, J -- Prockop, D J -- Ala-Kokko, L -- AR39740/AR/NIAMS NIH HHS/ -- HG00008/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 1999 Jul 16;285(5426):409-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, 90220 Oulu, Finland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10411504" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; Alleles ; Amino Acid Substitution ; Case-Control Studies ; Codon ; Collagen/chemistry/*genetics ; *Collagen Type IX ; Female ; Genetic Linkage ; *Genetic Predisposition to Disease ; Humans ; Intervertebral Disc Displacement/*genetics ; Linkage Disequilibrium ; Male ; Middle Aged ; Mutation ; Penetrance ; Polymorphism, Genetic ; Sciatica/*genetics ; Tryptophan/genetics
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  • 92
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    Xyloglucan fucosyltransferase, an enzyme involved in plant cell wall biosynthesis (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-06-18
    Description: Cell walls are crucial for development, signal transduction, and disease resistance in plants. Cell walls are made of cellulose, hemicelluloses, and pectins. Xyloglucan (XG), the principal load-bearing hemicellulose of dicotyledonous plants, has a terminal fucosyl residue. A 60-kilodalton fucosyltransferase (FTase) that adds this residue was purified from pea epicotyls. Peptide sequence information from the pea FTase allowed the cloning of a homologous gene, AtFT1, from Arabidopsis. Antibodies raised against recombinant AtFTase immunoprecipitate FTase enzyme activity from solubilized Arabidopsis membrane proteins, and AtFT1 expressed in mammalian COS cells results in the presence of XG FTase activity in these cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Perrin, R M -- DeRocher, A E -- Bar-Peled, M -- Zeng, W -- Norambuena, L -- Orellana, A -- Raikhel, N V -- Keegstra, K -- New York, N.Y. -- Science. 1999 Jun 18;284(5422):1976-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Michigan State University-Department of Energy (MSU-DOE) Plant Research Laboratory, Michigan State University, East Lansing, MI 48824, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10373113" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Arabidopsis/*enzymology/genetics ; COS Cells ; Carbohydrate Conformation ; Cell Wall/*metabolism ; Cloning, Molecular ; DNA, Complementary ; Expressed Sequence Tags ; Fucosyltransferases/chemistry/genetics/isolation & purification/*metabolism ; Genes, Plant ; *Glucans ; Molecular Sequence Data ; Peas/*enzymology ; Polysaccharides/*biosynthesis/chemistry ; *Xylans
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    BRCA1 inhibition of estrogen receptor signaling in transfected cells (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-05-21
    Description: Mutations of the breast cancer susceptibility gene BRCA1 confer increased risk for breast, ovarian, and prostatic cancers, but it is not clear why the mutations are associated with these particular tumor types. In transient transfection assays, BRCA1 was found to inhibit signaling by the ligand-activated estrogen receptor (ER-alpha) through the estrogen-responsive enhancer element and to block the transcriptional activation function AF-2 of ER-alpha. These results raise the possibility that wild-type BRCA1 suppresses estrogen-dependent transcriptional pathways related to mammary epithelial cell proliferation and that loss of this ability contributes to tumorigenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fan, S -- Wang, J -- Yuan, R -- Ma, Y -- Meng, Q -- Erdos, M R -- Pestell, R G -- Yuan, F -- Auborn, K J -- Goldberg, I D -- Rosen, E M -- R01-CA75503/CA/NCI NIH HHS/ -- R01-ES09169/ES/NIEHS NIH HHS/ -- New York, N.Y. -- Science. 1999 May 21;284(5418):1354-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Radiation Oncology, Long Island Jewish Medical Center, The Long Island Campus for the Albert Einstein College of Medicine, 270-05 76th Avenue, New Hyde Park, NY 11040, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10334989" target="_blank"〉PubMed〈/a〉
    Keywords: BRCA1 Protein/*physiology ; Breast/cytology ; Breast Neoplasms/etiology ; Cell Division ; Enhancer Elements, Genetic ; Epithelial Cells/cytology ; Estradiol/metabolism ; Estrogen Receptor alpha ; Female ; Genes, BRCA1 ; Genes, Reporter ; Humans ; Ligands ; Male ; Receptors, Estrogen/*metabolism ; *Signal Transduction ; Transcription Factors/metabolism ; *Transcriptional Activation ; Transfection ; Tumor Cells, Cultured
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  • 94
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    Effects of angiogenesis inhibitors on multistage carcinogenesis in mice (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-04-30
    Description: Solid tumors depend on angiogenesis for their growth. In a transgenic mouse model of pancreatic islet cell carcinogenesis (RIP1-Tag2), an angiogenic switch occurs in premalignant lesions, and angiogenesis persists during progression to expansive solid tumors and invasive carcinomas. RIP1-Tag2 mice were treated so as to compare the effects of four angiogenesis inhibitors at three distinct stages of disease progression. AGM-1470, angiostatin, BB-94, and endostatin each produced distinct efficacy profiles in trials aimed at preventing the angiogenic switch in premalignant lesions, intervening in the rapid expansion of small tumors, or inducing the regression of large end-stage cancers. Thus, anti-angiogenic drugs may prove most efficacious when they are targeted to specific stages of cancer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bergers, G -- Javaherian, K -- Lo, K M -- Folkman, J -- Hanahan, D -- New York, N.Y. -- Science. 1999 Apr 30;284(5415):808-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Biophysics and Hormone Research Institute, University of California, San Francisco, 513 Parnassus Ave, San Francisco, CA 94143-0534, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10221914" target="_blank"〉PubMed〈/a〉
    Keywords: Angiostatins ; Animals ; Anticarcinogenic Agents/pharmacology ; Antineoplastic Agents/*pharmacology ; Apoptosis ; Carcinoma, Islet Cell/blood supply/*drug therapy/pathology/prevention & control ; Collagen/pharmacology ; Cyclohexanes ; Disease Progression ; Drug Evaluation, Preclinical ; Endostatins ; Female ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Neoplasm Staging ; Neovascularization, Pathologic/*prevention & control ; Pancreatic Neoplasms/blood supply/*drug therapy/pathology/prevention & control ; Peptide Fragments/pharmacology ; Phenylalanine/analogs & derivatives/pharmacology ; Plasminogen/pharmacology ; Sesquiterpenes/pharmacology ; Thiophenes/pharmacology
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  • 95
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    Impaired immunoproteasome assembly and immune responses in PA28-/- mice (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-11
    Description: In vitro PA28 binds and activates proteasomes. It is shown here that mice with a disrupted PA28b gene lack PA28a and PA28b polypeptides, demonstrating that PA28 functions as a hetero-oligomer in vivo. Processing of antigenic epitopes derived from exogenous or endogenous antigens is altered in PA28-/- mice. Cytotoxic T lymphocyte responses are impaired, and assembly of immunoproteasomes is greatly inhibited in mice lacking PA28. These results show that PA28 is necessary for immunoproteasome assembly and is required for efficient antigen processing, thus demonstrating the importance of PA28-mediated proteasome function in immune responses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Preckel, T -- Fung-Leung, W P -- Cai, Z -- Vitiello, A -- Salter-Cid, L -- Winqvist, O -- Wolfe, T G -- Von Herrath, M -- Angulo, A -- Ghazal, P -- Lee, J D -- Fourie, A M -- Wu, Y -- Pang, J -- Ngo, K -- Peterson, P A -- Fruh, K -- Yang, Y -- New York, N.Y. -- Science. 1999 Dec 10;286(5447):2162-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The R. W. Johnson Pharmaceutical Research Institute, 3210 Merryfield Row, San Diego, CA 92121, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10591649" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antigen Presentation ; Autoantigens ; Cysteine Endopeptidases/chemistry/*metabolism ; Enzyme Activators/*metabolism ; Epitopes, T-Lymphocyte/immunology ; Female ; H-Y Antigen/immunology ; Herpesviridae Infections/immunology ; Histocompatibility Antigens Class I/immunology/metabolism ; Interferons/pharmacology ; Lymphocytic Choriomeningitis/immunology ; Lymphocytic choriomeningitis virus/immunology ; Male ; Mice ; Multienzyme Complexes/chemistry/*metabolism ; Muromegalovirus/immunology ; Ovalbumin/immunology ; Peptide Fragments/immunology ; Proteasome Endopeptidase Complex ; Proteins/genetics/*metabolism ; T-Lymphocytes, Cytotoxic/*immunology
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    Can mitochondrial clocks keep time? (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-04-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Strauss, E -- New York, N.Y. -- Science. 1999 Mar 5;283(5407):1435, 1437-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10206868" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; DNA, Mitochondrial/*genetics ; *Evolution, Molecular ; Female ; Fossils ; Humans ; Male ; Mutation ; Ovum ; *Paleontology ; Recombination, Genetic ; Spermatozoa ; Statistics as Topic
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  • 97
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    Uses and abuses of Tuskegee (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-06-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fairchild, A L -- Bayer, R -- New York, N.Y. -- Science. 1999 May 7;284(5416):919-21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Program in the History of Public Health and Medicine, Division of Sociomedical Sciences, The Joseph L. Mailman School of Public Health, Columbia University, New York, NY 10032-2625, USA. alf4@columbia.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10357678" target="_blank"〉PubMed〈/a〉
    Keywords: African Americans/history ; Alabama ; Anonymous Testing ; Anti-HIV Agents/*therapeutic use ; Clinical Trials as Topic ; Developing Countries ; Disclosure ; Ethics, Medical ; Female ; HIV Infections/prevention & control/*transmission ; *HIV Seroprevalence ; History, 20th Century ; *Human Experimentation/history ; Humans ; Infectious Disease Transmission, Vertical/*prevention & control ; Informed Consent/history ; Male ; *Needle-Exchange Programs ; *Persons ; Pregnant Women ; Syphilis/history ; *Trust ; United States ; *Vulnerable Populations ; Withholding Treatment
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  • 98
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    Narcolepsy genes wake up the sleep field (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-10-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Takahashi, J S -- New York, N.Y. -- Science. 1999 Sep 24;285(5436):2076-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Neurobiology and Physiology, Northwestern University, Evanston, IL 60208-3520, USA. j-takahashi@nwu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10523205" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromosome Mapping ; Circadian Rhythm ; Cloning, Molecular ; Dogs ; Homeostasis ; Hypothalamus/metabolism ; Ligands ; Mice ; Mice, Knockout ; Narcolepsy/*genetics/physiopathology ; Neurons/metabolism ; Neuropeptides/metabolism ; Orexin Receptors ; Receptors, G-Protein-Coupled ; Receptors, Neuropeptide/chemistry/*genetics/physiology ; *Sleep/physiology ; Sleep, REM
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  • 99
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    Inhibitors of the nonmevalonate pathway of isoprenoid biosynthesis as antimalarial drugs (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-09-08
    Description: A mevalonate-independent pathway of isoprenoid biosynthesis present in Plasmodium falciparum was shown to represent an effective target for chemotherapy of malaria. This pathway includes 1-deoxy-D-xylulose 5-phosphate (DOXP) as a key metabolite. The presence of two genes encoding the enzymes DOXP synthase and DOXP reductoisomerase suggests that isoprenoid biosynthesis in P. falciparum depends on the DOXP pathway. This pathway is probably located in the apicoplast. The recombinant P. falciparum DOXP reductoisomerase was inhibited by fosmidomycin and its derivative, FR-900098. Both drugs suppressed the in vitro growth of multidrug-resistant P. falciparum strains. After therapy with these drugs, mice infected with the rodent malaria parasite P. vinckei were cured.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jomaa, H -- Wiesner, J -- Sanderbrand, S -- Altincicek, B -- Weidemeyer, C -- Hintz, M -- Turbachova, I -- Eberl, M -- Zeidler, J -- Lichtenthaler, H K -- Soldati, D -- Beck, E -- New York, N.Y. -- Science. 1999 Sep 3;285(5433):1573-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Biochemistry, Academic Hospital Centre, Justus-Liebig-University, Friedrichstrasse 24, D-35392 Giessen, Germany. hassan.jomaa@biochemie.med.uni-giessen.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10477522" target="_blank"〉PubMed〈/a〉
    Keywords: Aldose-Ketose Isomerases/*antagonists & inhibitors/chemistry/genetics/metabolism ; Amino Acid Sequence ; Animals ; Antimalarials/*pharmacology ; Cloning, Molecular ; Enzyme Inhibitors/pharmacology ; Fosfomycin/*analogs & derivatives/pharmacology ; Genes, Protozoan ; *Hemiterpenes ; Malaria/*drug therapy/parasitology ; Malaria, Falciparum/drug therapy/parasitology ; Mevalonic Acid/metabolism ; Mice ; Molecular Sequence Data ; Multienzyme Complexes/*antagonists & inhibitors/chemistry/genetics/metabolism ; Organelles/drug effects/metabolism ; Organophosphorus Compounds/metabolism ; Oxidoreductases/*antagonists & inhibitors/chemistry/genetics/metabolism ; Pentosephosphates/*metabolism ; Plasmodium falciparum/*drug effects/genetics/metabolism ; Recombinant Proteins/antagonists & inhibitors/metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; Terpenes/*pharmacology
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  • 100
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    Bacterial photoreceptor with similarity to photoactive yellow protein and plant phytochromes (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-20
    Description: A phytochrome-like protein called Ppr was discovered in the purple photosynthetic bacterium Rhodospirillum centenum. Ppr has a photoactive yellow protein (PYP) amino-terminal domain, a central domain with similarity to phytochrome, and a carboxyl-terminal histidine kinase domain. Reconstitution experiments demonstrate that Ppr covalently attaches the blue light-absorbing chromophore p-hydroxycinnamic acid and that it has a photocycle that is spectrally similar to, but kinetically slower than, that of PYP. Ppr also regulates chalcone synthase gene expression in response to blue light with autophosphorylation inhibited in vitro by blue light. Phylogenetic analysis demonstrates that R. centenum Ppr may be ancestral to cyanobacterial and plant phytochromes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jiang, Z -- Swem, L R -- Rushing, B G -- Devanathan, S -- Tollin, G -- Bauer, C E -- GM 40941/GM/NIGMS NIH HHS/ -- R01 GM040941/GM/NIGMS NIH HHS/ -- R01 GM053940/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1999 Jul 16;285(5426):406-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Indiana University, Jordan Hall, Bloomington, IN 47405, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10411503" target="_blank"〉PubMed〈/a〉
    Keywords: Acyltransferases/genetics ; Amino Acid Sequence ; Apoproteins/chemistry/metabolism ; Bacterial Proteins/*chemistry/genetics/physiology ; Chemotaxis ; Cloning, Molecular ; Coumaric Acids/metabolism ; Gene Expression Regulation, Bacterial ; Light ; Molecular Sequence Data ; Mutation ; Phosphorylation ; *Photoreceptors, Microbial ; Phylogeny ; Phytochrome/*chemistry ; Protein Kinases/metabolism ; Rhodospirillum/*chemistry/genetics/physiology ; Sequence Alignment
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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