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  • Base Sequence  (33)
  • Adult  (29)
  • American Association for the Advancement of Science (AAAS)  (62)
  • 1980-1984  (62)
  • 1975-1979
  • 1983  (62)
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Publisher
  • American Association for the Advancement of Science (AAAS)  (62)
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  • 1980-1984  (62)
  • 1975-1979
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  • 1
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-10-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉HD-12572/HD/NICHD NIH HHS/ -- MH-00318/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1983 Oct 7;222(4619):74-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6623059" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Age Factors ; Child, Preschool ; *Eye Movements ; Humans ; Research Design
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  • 2
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-06-10
    Description: A comparison between eukaryotic gene sequences and protein sequences of homologous enzymes from bacterial and mammalian organisms shows that intron-exon junctions frequently coincide with variable surface loops of the protein structures. The altered surface structures can account for functional differences among the members of a family. Sliding of the intron-exon junctions may constitute one mechanism for generating length polymorphisms and divergent sequences found in protein families. Since intron-exon junctions map to protein surfaces, the alterations mediated by sliding of these junctions can be effected without disrupting the stability of the protein core.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Craik, C S -- Rutter, W J -- Fletterick, R -- AM21344/AM/NIADDK NIH HHS/ -- AM26081/AM/NIADDK NIH HHS/ -- GM28520/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Jun 10;220(4602):1125-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6344214" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Bacterial Proteins ; Base Sequence ; Biological Evolution ; DNA/genetics ; Endopeptidases/genetics ; Eukaryotic Cells/metabolism ; Genes ; Genes, Bacterial ; Protein Conformation ; Proteins/*genetics ; *Serine Endopeptidases ; Tetrahydrofolate Dehydrogenase/genetics
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  • 3
    Publication Date: 1983-05-20
    Description: The acquired immune deficiency syndrome (AIDS) is characterized by T-lymphocyte dysfunction and is frequently accompanied by opportunistic infections and Kaposi's sarcoma. Human T-cell leukemia virus (HTLV) is associated with T-cell malignancies and can transform T lymphocytes in vitro. In an attempt to find evidence of HTLV infection in patients with AIDS, DNA from samples of peripheral blood lymphocytes from 33 AIDS patients was analyzed by Southern blot-hybridization with a radiolabeled cloned HTLV DNA probe. Analysis of DNA from both the fresh (uncultured) lymphocytes and from T cells cultured with T-cell growth factor revealed the presence of integrated HTLV proviral sequences in lymphocytes from two of the patients, both of whom had antibody to HTLV. The proviral sequences could not be detected in blood samples obtained from these individuals at a later date, consistent with the possibility that the population of infected cells had become depleted.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gelmann, E P -- Popovic, M -- Blayney, D -- Masur, H -- Sidhu, G -- Stahl, R E -- Gallo, R C -- New York, N.Y. -- Science. 1983 May 20;220(4599):862-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6601822" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/etiology/immunology/*microbiology ; Adult ; Animals ; Cats ; DNA, Viral/*analysis ; Humans ; Male ; Middle Aged ; *Retroviridae/genetics ; T-Lymphocytes/analysis/microbiology ; Tumor Virus Infections/complications/*microbiology
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  • 4
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-06-10
    Description: An important question concerning the mechanism of somatic mutation of immunoglobulin variable (V) genes is whether it involves all of the numerous V genes in a differentiated B cell, independent of location, or if it is restricted to a particular chromosomal site. Comparison of the sequence of two alleles of a given V gene shows that the mutations are limited to the rearranged V gene, while the same V gene on the other chromosome has not undergone mutation. This indicates that a V gene sequence alone is not sufficient for somatic mutation to take place. The mutation is therefore restricted to the rearranged V gene and consequently does not occur before rearrangement.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gorski, J -- Rollini, P -- Mach, B -- New York, N.Y. -- Science. 1983 Jun 10;220(4602):1179-81.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857243" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Binding Sites, Antibody/*genetics ; Chromosomes/physiology ; DNA/genetics ; *Genes ; Immunoglobulin Constant Regions/genetics ; Immunoglobulin Variable Region/*genetics ; Immunoglobulins/genetics ; Lymphocytes/metabolism ; Mice ; *Mutation
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  • 5
    Publication Date: 1983-06-24
    Description: The size of the Epstein-Barr virus (EBV) nuclear antigen (EBNA) in cells infected with different EBV isolates varies directly with the size of the EBV triplet repeat array, IR3. The isolate with the largest IR3 fragment has approximately 170 more codons than the isolates with the smallest IR3 fragment; it encodes an EBNA which is approximately 17,000 daltons larger than the smallest EBNA. The EBV IR3 encodes part of a 2-kilobase exon of a latently infected cell messenger RNA which must be translated into a repetitive amino acid domain of EBNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hennessy, K -- Heller, M -- van Santen, V -- Kieff, E -- CA 17281/CA/NCI NIH HHS/ -- CA 19264/CA/NCI NIH HHS/ -- GM 07183/GM/NIGMS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1983 Jun 24;220(4604):1396-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6304878" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, Viral/*genetics ; Base Sequence ; Cell Nucleus/immunology ; DNA, Viral/*genetics ; Epstein-Barr Virus Nuclear Antigens ; Herpesvirus 4, Human/*genetics/immunology ; Humans ; Mice ; RNA, Viral/genetics
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  • 6
    Publication Date: 1983-06-03
    Description: The eye movements of human subjects were experimentally modified while they were awake to determine the effect of waking experience on electroculographic activity during rapid eye movement (REM) sleep. After normal eye movements were monitored under controlled conditions, subjects spent 5 days wearing goggles that contained minification lenses and that curtailed vision to a 5 degree field. The amplitude and frequency of eye movements decreased when subjects were awake and increased during REM sleep; sleep stage durations and distributions were unaffected. Values returned to normal in the first 24 hours of recovery.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Herman, J H -- Roffwarg, H P -- MH 3414/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1983 Jun 3;220(4601):1074-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6844929" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Electrooculography ; *Eye Movements ; Humans ; Oculomotor Muscles/physiology ; Sleep, REM/*physiology ; Wakefulness/*physiology
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  • 7
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-02-18
    Description: Polynucleotide templates containing C (cytidine) as the major component facilitate the synthesis of oligonucleotides from mixtures of the activated mononucleotide derivatives (as indicated by structure 1 in the text). A nucleotide is incorporated into oligomeric products if and only if its complement is present in the template. The reaction has a high fidelity and produces products with mean chain lengths of six to ten nucleotides. Bases other than guanosine are incorporated within oligomers or at their 3' termini, but rarely at their 5' termini.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Inoue, T -- Orgel, L E -- GM-13435/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Feb 18;219(4586):859-62.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6186026" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; DNA-Directed RNA Polymerases/*metabolism ; Hydrogen Bonding ; Models, Chemical ; RNA/*chemical synthesis ; Templates, Genetic
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  • 8
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-07-01
    Description: Oligonucleotide-directed site-specific mutagenesis was applied to alter the cleavage site in the signal peptide of the major outer membrane lipoprotein of Escherichia coli. Replacing the glycine residue at the cleavage site with an alanine residue did not affect the processing of the signal peptide. However, when the same cleavage site was constructed by the deletion of the glycine residue, the signal peptide was no longer cleaved. These results indicate that stringent structural integrity at the cleavage site in the lipoprotein signal sequence is required for correct processing of prolipoprotein.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Inouye, S -- Hsu, C P -- Itakura, K -- Inouye, M -- GM19043/GM/NIGMS NIH HHS/ -- GM30395/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Jul 1;221(4605):59-61.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6344218" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; *Bacterial Outer Membrane Proteins ; Base Sequence ; DNA, Bacterial/metabolism ; Electrophoresis, Polyacrylamide Gel ; Escherichia coli/*metabolism ; *Escherichia coli Proteins ; Lipoproteins/*biosynthesis ; Membrane Proteins/biosynthesis ; Mutation ; Protein Precursors/*biosynthesis
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  • 9
    Publication Date: 1983-04-01
    Description: The tissue culture condition that is required for the type of chromosome breakage seen at most fragile sites, namely, the absence of folic acid and thymidine in the medium, greatly enhanced micronucleus formation in proliferating lymphocyte cultures from normal individuals. This suggests that chromosome breakage at fragile sites and the apparently spontaneous damage that gives rise to micronuclei are controlled by the same mechanism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jacky, P B -- Beek, B -- Sutherland, G R -- New York, N.Y. -- Science. 1983 Apr 1;220(4592):69-70.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6828880" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Cell Nucleus/drug effects/ultrastructure ; Cells, Cultured ; Child ; *Chromosome Aberrations ; Chromosome Fragile Sites ; *Chromosome Fragility ; Culture Media ; Dose-Response Relationship, Drug ; Female ; Folic Acid/pharmacology ; Humans ; Lymphocytes/ultrastructure ; Male ; Middle Aged ; Thymidine/pharmacology
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  • 10
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-01-07
    Description: The illustration that accompanied the review by C. C. Albritton, Jr., of W. H. Goetzmann and K. Sloan's Looking Far North (Viking, New York, 1982) in the issue of 10 December, page 1109, should have been credited to the Bancroft Library, University of California, Berkeley, as well as to the book under review.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lerman, L S -- New York, N.Y. -- Science. 1983 Jan 7;219(4580):10.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6184778" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; RNA/*physiology ; RNA, Small Nuclear
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  • 11
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-03-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1983 Mar 4;219(4588):1052-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6186029" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cell Nucleus/physiology ; DNA/*genetics ; Humans ; Poly A/genetics ; RNA/*genetics ; Repetitive Sequences, Nucleic Acid ; Transcription, Genetic
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  • 12
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-04-15
    Description: Glucose given to the newborn human may result in hyperglycemia, suggesting that its utilization is impaired at this developmental stage. Galactose is thought to be a more appropriate carbohydrate source for the newborn. The enzymes involved in hexose phosphorylation may, in part, be responsible for these observations. A key regulatory enzyme of hepatic glucose assimilation, glucokinase, is diminished in newborns compared to adults, whereas galactokinase activity is increased. When newborn dogs were fasted and then fed either glucose or galactose, their plasma insulin responses to glucose were similar, but the pups fed galactose demonstrated an attenuated systemic appearance rate of glucose. Hexose incorporation into hepatic glycogen and net glycogen synthesis was augmented in the galactose-fed dogs. In vitro, liver from neonatal dogs showed enhanced galactokinase activity relative to that for hexokinase or glucokinase. Neonatal hexose assimilation may be independent of insulin action and, instead, be related to the developmental presence of hexose phosphorylating enzymes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kliegman, R M -- Miettinen, E L -- Morton, S -- HD05740/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1983 Apr 15;220(4594):302-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836273" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Animals ; Animals, Newborn/metabolism ; *Carbohydrate Metabolism ; Dogs ; Galactokinase/*physiology ; Galactose/metabolism ; Galactosemias ; Glucose/metabolism ; Humans ; Infant, Newborn ; Liver/enzymology ; Liver Glycogen/biosynthesis ; Phosphorylation ; Rats
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  • 13
    Publication Date: 1983-08-26
    Description: A substitution of alanine for valine at position 126 in the beta-chain of hemoglobin was discovered in a hematologically normal adult male of Lebanese extraction. The variant beta-globin was initially observed and subsequently purified by reverse-phase high-performance liquid chromatography (HPLC). Reverse-phase HPLC was also used to isolate the variant tryptic peptide of beta-T13 that has alanine replacing valine at residue 126. The discovery of hemoglobin Beirut illustrates the usefulness of reverse-phase HPLC for the detection of neutral amino acid substitutions in proteins. The ability to detect neutral substitutions in undigested proteins is pertinent to the monitoring of genetic variation in human populations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Strahler, J R -- Rosenbloom, B B -- Hanash, S M -- R01-HL25541/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1983 Aug 26;221(4613):860-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6879181" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Chromatography, High Pressure Liquid ; Hemoglobins, Abnormal/genetics/*isolation & purification ; Humans ; Isoelectric Point ; Macromolecular Substances ; Male
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  • 14
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-02-11
    Description: The prospects for protein engineering, including the roles of x-ray crystallography, chemical synthesis of DNA, and computer modelling of protein structure and folding, are discussed. It is now possible to attempt to modify many different properties of proteins by combining information on crystal structure and protein chemistry with artificial gene synthesis. Such techniques offer the potential for altering protein structure and function in ways not possible by any other method.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ulmer, K M -- New York, N.Y. -- Science. 1983 Feb 11;219(4585):666-71.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6572017" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Crystallography ; Genes ; *Genetic Engineering ; Models, Molecular ; Molecular Biology/trends ; Protein Conformation ; Proteins/*genetics ; X-Ray Diffraction
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  • 15
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-02-11
    Description: Enhancers, or activators, dramatically increase the transcriptional activity of certain eukaryotic genes. A series of multiple point mutations affecting the simian virus 40 (SV40) enhancer-activator region were generated in order to define the nucleotide sequence required for this function. Three independent assays provided information leading to the identification of nucleotides essential for enhancer function. One class leads to a decrease in gene expression, while the second completely abolishes functional activity. One critical replacement appears to be the first G (guanine) in a sequence TGGAAAG (T, thymine, A, adenine) located in the 5' region of the 72 base-pair repeat of SV40. Comparison of this sequence with nucleotide sequences in other known enhancers leads to the identification of potential related core elements.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weiher, H -- Konig, M -- Gruss, P -- New York, N.Y. -- Science. 1983 Feb 11;219(4585):626-31.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6297005" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; DNA Replication ; *Gene Expression Regulation ; Mutation ; *Operon ; Plasmids ; Repetitive Sequences, Nucleic Acid ; Simian virus 40/*genetics ; Virus Replication
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  • 16
    Publication Date: 1983-07-29
    Description: Subjects treated with low or high doses of ethanol demonstrated impaired memory, particularly in tests involving the recall of poorly learned information. Zimelidine, an inhibitor of serotonin reuptake, reversed this ethanol-induced impairment. The serotonin neurotransmitter system may mediate learning and memory in humans and may determine some of the effects of alcohol on higher mental functions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weingartner, H -- Rudorfer, M V -- Buchsbaum, M S -- Linnoila, M -- New York, N.Y. -- Science. 1983 Jul 29;221(4609):472-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6223371" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Brompheniramine/analogs & derivatives/pharmacology ; Ethanol/*adverse effects ; Humans ; Learning/drug effects ; Male ; Memory/drug effects ; Memory Disorders/*chemically induced ; Mental Recall/drug effects ; Serotonin/*physiology ; Serotonin Antagonists/pharmacology ; Zimeldine
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  • 17
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-11-18
    Description: Prokaryotic gene control signals can be isolated, compared, and characterized by precise fusion in vitro to the Escherichia coli galactokinase gene (galK), which provides both a simple assay and genetic selection. This recombinant galK fusion vector system was applied to the study of promoters and terminators recognized by the Escherichia coli RNA polymerase. Three promoters created by mutation from DNA sequences having no promoter function were characterized. Mutations that inactivate promoter function were selected, structurally defined, and functionally analyzed. Similarly, transcription termination was examined, and mutations affecting terminator function were isolated and characterized.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rosenberg, M -- Chepelinsky, A B -- McKenney, K -- New York, N.Y. -- Science. 1983 Nov 18;222(4625):734-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6356355" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; DNA, Bacterial/*genetics ; DNA, Recombinant ; DNA-Directed RNA Polymerases/genetics ; Escherichia coli/genetics ; Galactokinase/genetics ; Gene Expression Regulation ; Mutation ; Nucleic Acid Conformation ; *Operon ; *Transcription, Genetic
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  • 18
    Publication Date: 1983-06-10
    Description: The compound 2-phenylethylamine is an "endogenous amphetamine" which may modulate central adrenergic functions. 2-Phenylethylamine is mainly metabolized by monoamine oxidase to form phenyl acetate (PAA). The 24-hour urinary excretion of PAA was measured in normal healthy volunteers and depressed patients. Patients were diagnosed according to the Diagnostic and Statistical Manual of Mental Disorders, edition 3. In 70 percent of healthy volunteers of both sexes, the excretion of PAA ranged between 70 and 175 milligrams per 24 hours (mean = 141.1 +/- 10.2). Inpatients with major depressive disorder (unipolar type) (N = 31) excreted less PAA (68.7 +/- 7.0 milligrams per 24 hours) and 55 percent of them excreted less than 70 milligrams per 24 hours; there were no significant differences in the PAA excretion between untreated patients (N = 13) and those treated with antidepressants that were not effective (N = 18). The PAA excretion was reduced to a lesser extent in 35 less severely depressed unipolar outpatients (drug-free for 1 week) (86.3 +/- 11.8 milligrams per 24 hours). These results suggest that low PAA urinary excretion may be a reliable state marker for the diagnosis of some forms of unipolar major depressive disorders.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sabelli, H C -- Fawcett, J -- Gusovsky, F -- Javaid, J -- Edwards, J -- Jeffriess, H -- New York, N.Y. -- Science. 1983 Jun 10;220(4602):1187-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857245" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Aged ; Antidepressive Agents/pharmacology ; Depressive Disorder/*diagnosis/urine ; Female ; Humans ; Male ; Middle Aged ; Phenethylamines/metabolism/physiology ; Phenylacetates/*urine
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  • 19
    Publication Date: 1983-07-15
    Description: The structure of the messenger RNA (mRNA) encoding the precursor to mouse submaxillary epidermal growth factor (EGF) was determined from the sequence of a set of overlapping complementary DNA's (cDNA). The mRNA is unexpectedly large, about 4750 nucleotide bases, and predicts the sequence of preproEGF, a protein of 1217 amino acids (133,000 molecular weight). The EGF moiety (53 amino acids) is flanked by polypeptide segments of 976 and 188 amino acids at its amino and carboyxl termini, respectively. The amino terminal segment of the precursor contains seven peptides with sequences that are similar but not identical to EGF.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Scott, J -- Urdea, M -- Quiroga, M -- Sanchez-Pescador, R -- Fong, N -- Selby, M -- Rutter, W J -- Bell, G I -- 21344/PHS HHS/ -- New York, N.Y. -- Science. 1983 Jul 15;221(4607):236-40.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6602382" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Epidermal Growth Factor/biosynthesis/*genetics ; Humans ; Male ; Mice ; RNA, Messenger/*genetics ; Submandibular Gland/metabolism
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  • 20
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-01-14
    Description: Two plasmids containing nonoverlapping deletions of the herpes simplex virus thymidine kinase gene were introduced into thymidine kinase-deficient mouse L cells by DNA-mediated gene transfer. Thymidine kinase-producing transformants were generated by a mixture of the two plasmids at a frequency significantly greater than that generated by either plasmid alone. Southern blot analyses demonstrated that functional thymidine kinase genes were generated by homologous recombination between the two deletion mutants.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Small, J -- Scangos, G -- New York, N.Y. -- Science. 1983 Jan 14;219(4581):174-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6294829" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cells, Cultured ; Chromosome Deletion ; *Genetic Engineering ; Mice ; Mutation ; *Plasmids ; *Recombination, Genetic ; Simplexvirus ; Thymidine Kinase/*genetics
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  • 21
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-07-01
    Description: Although official efforts to control air pollution have traditionally focused on outdoor air, it is now apparent that elevated contaminant concentrations are common inside some private and public buildings. Concerns about potential public health problems due to indoor air pollution are based on evidence that urban residents typically spend more than 90 percent of their time indoors, concentrations of some contaminants are higher indoors than outdoors, and for some pollutants personal exposures are not characterized adequately by outdoor measurements. Among the more important indoor contaminants associated with health or irritation effects are passive tobacco smoke, radon decay products, carbon monoxide, nitrogen dioxide, formaldehyde, asbestos fibers, microorganisms, and aeroallergens. Efforts to assess health risks associated with indoor air pollution are limited by insufficient information about the number of people exposed, the pattern and severity of exposures, and the health consequences of exposures. An overall strategy should be developed to investigate indoor exposures, health effects, control options, and public policy alternatives.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Spengler, J D -- Sexton, K -- ES-01108/ES/NIEHS NIH HHS/ -- New York, N.Y. -- Science. 1983 Jul 1;221(4605):9-17.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857273" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Air Microbiology ; Air Pollution/*adverse effects/prevention & control ; Air Pollution, Radioactive/adverse effects ; Asbestos/adverse effects ; Carbon Monoxide/adverse effects ; Child ; Construction Materials/adverse effects ; Formaldehyde/adverse effects ; Fuel Oils/adverse effects ; Household Articles ; Humans ; Public Policy ; Radon/adverse effects ; Smoke/adverse effects ; Smoking ; Tobacco Smoke Pollution/adverse effects ; Ventilation
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  • 22
    Publication Date: 1983-03-18
    Description: Flow cytometry revealed that, in the presence of tritiated thymidine, a greater percentage of phytohemagglutinin-stimulated lymphocytes from old human donors were arrested in the G2 or M phase than were cells from young donors. Furthermore, lymphocytes from old donors showed significantly more chromosomal damage than did lymphocytes from young donors. Lymphocyte cultures from old or young donors not exposed to tritiated thymidine had the same percentage of cycling lymphocytes in G2 or M, although the number of lymphocytes stimulated by phytohemagglutinin to enter the cell cycle was significantly lower in cultures from old donors. Thus, the impaired incorporation of tritiated thymidine by phytohemagglutinin-exposed lymphocytes from old humans reflects both an impaired proliferative response to phytohemagglutinin and an increased sensitivity to the radiobiological effects of tritiated thymidine.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Staiano-Coico, L -- Darzynkiewicz, Z -- Hefton, J M -- Dutkowski, R -- Darlington, G J -- Weksler, M E -- New York, N.Y. -- Science. 1983 Mar 18;219(4590):1335-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6828861" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; *Aging ; Cell Cycle/*radiation effects ; Chromosomes/*radiation effects/ultrastructure ; DNA Repair/radiation effects ; Humans ; Middle Aged ; Thymidine/adverse effects ; Tritium
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  • 23
    Publication Date: 1983-05-27
    Description: Schizophrenic patients with high ventricle brain ratios and cortical brain atrophy, as shown by computerized tomography, had decreased spinal fluid concentrations of homovanillic acid and dopamine-beta-hydroxylase activity. These decreased cerebral spinal fluid concentrations in patients with brain atrophy support the proposal of disturbed noradrenaline and dopamine neurotransmission in a subgroup of schizophrenic patients.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉van Kammen, D P -- Mann, L S -- Sternberg, D E -- Scheinin, M -- Ninan, P T -- Marder, S R -- van Kammen, W B -- Rieder, R O -- Linnoila, M -- New York, N.Y. -- Science. 1983 May 27;220(4600):974-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6133351" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Aged ; Animals ; Antipsychotic Agents/adverse effects ; Atrophy ; Brain/metabolism/*pathology ; Dopamine/metabolism ; Dopamine beta-Hydroxylase/*cerebrospinal fluid ; Homovanillic Acid/*cerebrospinal fluid ; Humans ; Middle Aged ; Phenylacetates/*cerebrospinal fluid ; Rats ; Schizophrenia/*cerebrospinal fluid ; Tomography, X-Ray Computed
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  • 24
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-11-18
    Description: Comparison of two closely related primate papovaviruses, simian virus 40 (SV40) and human BK virus (BKV), reveals that the only region of extensive divergence, the tandem sequences adjacent to the origins of DNA replication, is responsible in SV40 for enhancing early gene expression. This study demonstrates a similar enhancer function for the analogous repeated region in BKV. The dissimilarity in sequence of the BKV and SV40 enhancer elements suggests that they may have been acquired since SV40 and BKV diverged. A locus cloned from the human genome homologous to the BKV tandem repeats has been shown to function as low level enhancer element in mammalian cells. These data support the hypothesis that viral enhancer sequences may be evolutionarily related to host cell sequences.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rosenthal, N -- Kress, M -- Gruss, P -- Khoury, G -- New York, N.Y. -- Science. 1983 Nov 18;222(4625):749-55.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6314501" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; BK Virus/*genetics ; Base Sequence ; Biological Evolution ; DNA, Viral/*genetics ; Gene Expression Regulation ; *Genes, Regulator ; Humans ; Plasmids ; Polyomavirus/*genetics ; Repetitive Sequences, Nucleic Acid ; Species Specificity
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  • 25
    Publication Date: 1983-06-03
    Description: In order to investigate the functions of stimulus recognition, signal transduction, and adaptation, the aspartate receptor gene for bacterial chemotaxis in Salmonella typhimurium has been sequenced and modified. A carboxyl-terminal truncated receptor was shown to bind aspartate and to transmit a signal to change motility behavior. However, the truncated receptor showed greatly reduced methyl-accepting capacity, and did not allow adaptation to the sensory stimulation. The separation of receptor functions by alteration of primary structure emphasizes that the receptor is directly involved in adaptation and is not solely a device for transmitting a signal across a membrane.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Russo, A F -- Koshland, D E Jr -- New York, N.Y. -- Science. 1983 Jun 3;220(4601):1016-20.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6302843" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; Amino Acid Sequence ; Aspartic Acid ; *Bacterial Physiological Phenomena ; Base Sequence ; *Chemotaxis ; Escherichia coli/physiology ; Methylation ; *Receptors, Amino Acid ; Receptors, Cell Surface/genetics/*physiology ; Salmonella typhimurium/physiology ; Serine
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  • 26
    Publication Date: 1983-08-19
    Description: The cerebral metabolic rate for glucose, as measured with positron emission tomography and fluorine-18-labeled 2-deoxy-D-glucose, was significantly higher in four healthy young subjects with trisomy 21 syndrome (Down's syndrome) than the mean rate in healthy young controls. The rate of cerebral glucose utilization in the frontal lobe of a 51-year-old subject with Down's syndrome was significantly lower than the rate in the young subjects with this syndrome, but approximated the rate in middle-aged controls. Thus glucose utilization by the brain appears to be excessive in young adults with Down's syndrome but may decline with age in some brain regions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schwartz, M -- Duara, R -- Haxby, J -- Grady, C -- White, B J -- Kessler, R M -- Kay, A D -- Cutler, N R -- Rapoport, S I -- New York, N.Y. -- Science. 1983 Aug 19;221(4612):781-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6224294" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Age Factors ; Brain/*physiopathology ; Dementia/etiology ; Down Syndrome/complications/*physiopathology ; Female ; Glucose/*metabolism ; Humans ; Male ; Middle Aged
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  • 27
    Publication Date: 1983-09-16
    Description: Cigarette smoking is the major risk factor for the development of pulmonary emphysema, a disorder that may result from an imbalance between the elastase and antielastase levels in the lungs. Decreased functional alpha 1-protease inhibitor, an inhibitor of neutrophil elastase, might render smokers susceptible to elastase-catalyzed destruction of pulmonary elastic fibers and the development of emphysema. Binding and inactivation of isotopically labeled porcine pancreatic elastase and human neutrophil elastase by alpha 1-protease inhibitor were measured in fluid obtained by bronchoalveolar lavage of volunteers. The inhibition of elastase-catalyzed solubilization of elastin and a tripeptide substrate were also determined. The mean level of functional alpha 1-protease inhibitor in the bronchoalveolar lavage fluid of smokers was found to be equal to or greater than that of nonsmokers, contradicting reports by other investigators. Increased elastase derived from pulmonary neutrophils, rather than decreased functional alpha 1-protease inhibitor, appears to be the main factor in the genesis of emphysema in smokers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stone, P J -- Calore, J D -- McGowan, S E -- Bernardo, J -- Snider, G L -- Franzblau, C -- HL-19717/HL/NHLBI NIH HHS/ -- HL-25229/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1983 Sep 16;221(4616):1187-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6612333" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Bronchi/*metabolism ; Female ; Humans ; In Vitro Techniques ; Male ; Neutrophils/metabolism ; Protease Inhibitors/*metabolism ; Pulmonary Alveoli/*metabolism ; *Smoking
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  • 28
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-11-18
    Description: Insertion sequences (IS) are discrete segments of DNA that can transpose from one genomic site to another and promote genetic rearrangements. A question that is central to understanding the mechanism of transpositional recombination is whether genetic rearrangements are accompanied by duplication of the IS that promotes them. Analysis of adjacent deletions mediated by IS903 provides the strongest evidence to date than any IS-mediated transpositional recombination can occur by an efficient replicative mechanism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weinert, T A -- Schaus, N A -- Grindley, N D -- GM28470/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Nov 18;222(4625):755-65.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6314502" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Chromosome Deletion ; *DNA Transposable Elements ; DNA, Bacterial/*genetics ; Plasmids ; *Recombination, Genetic ; Repetitive Sequences, Nucleic Acid
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  • 29
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-08-26
    Description: One variant of a complex satellite DNA of the Bermuda land crab is significantly longer than the average repeat unit of the satellite. The extra DNA in the variant is accounted for by a fivefold tandem amplification of a 0.142-kilobase sequence. The amplified sequence is bounded by a tetranucleotide inverted repeat; the upstream arm of the inverted repeat is missing from two other variants of the satellite. The latter variants contain only one copy of a sequence that is closely related to the amplified sequence. By contrast, in several satellite DNA's of other organisms, extra DNA is inserted.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bonnewell, V -- Fowler, R F -- Skinner, D M -- New York, N.Y. -- Science. 1983 Aug 26;221(4613):862-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6879182" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Brachyura/genetics ; Chromosome Inversion ; DNA, Satellite/*genetics ; *Gene Amplification ; Nucleic Acid Conformation
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  • 30
    Publication Date: 1983-07-15
    Description: The polymorphism of immune response genes plays a critical role in determining the immune capabilities of a particular individual. The molecular nature of this polymorphism was studied by examining the structure of the coding portions of three alleles of the I-A beta chain gene, an immune response gene whose protein product constitutes a subunit of the I-A molecule. Comparison of the I-A beta chains encoded by these alleles revealed an amino acid sequence divergence of 5 to 8 percent. The differences were found to be a series of short alterations clustered in the amino terminal half of the polypeptide.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Choi, E -- McIntyre, K -- Germain, R N -- Seidman, J G -- AI18436/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1983 Jul 15;221(4607):283-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6407114" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Amino Acid Sequence ; Animals ; Base Sequence ; *Genes, MHC Class II ; Histocompatibility Antigens Class II/immunology ; Humans ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; *Polymorphism, Genetic
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  • 31
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-05-27
    Description: The utility of somatic cell genetic analysis for the chromosomal localization of genes in mammals is well established. With the development of recombinant DNA probes and efficient blotting techniques that allow visualization of single-copy cellular genes, somatic cell genetics has been extended from the level of phenotypes expressed by whole cells to the level of the cellular genome itself. This extension has proved invaluable for the analysis of genes not readily expressed in somatic cell hybrids and for the study of multigene families, especially pseudogenes dispersed in different chromosomes throughout the genome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉D'Eustachio, P -- Ruddle, F H -- GM-09966/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 May 27;220(4600):919-24.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6573776" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; *Chromosome Mapping ; Chromosomes, Human ; Cricetinae ; Cricetulus ; DNA, Recombinant/metabolism ; Genes ; Genetic Markers ; Genetics ; Humans ; Hybrid Cells/metabolism ; Mice ; Polymorphism, Genetic ; RNA, Messenger/metabolism
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  • 32
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-11-18
    Description: Class III genes require multiple cellular factors for transcription by RNA polymerase III; these genes form stable transcription complexes, which in the case of Xenopus 5S genes are correlated with differential expression in vivo. The minimal number and identity of the factors required to form both stable and metastable complexes on three class III genes (encoding, respectively, 5S RNA, transfer RNA, and adenovirus VA RNA species) were determined. Stable complex formation requires one common factor, whose recognition site was analyzed, and either no additional factors (the VA gene), a second common factor (the transfer RNA gene), or a third gene-specific factor (the 5S gene). The mechanism of stable complex formation and its relevance to transcriptional regulation were examined in light of the various factors and the promoter sequences recognized by these factors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lassar, A B -- Martin, P L -- Roeder, R G -- CA 24223/CA/NCI NIH HHS/ -- CA 24891/CA/NCI NIH HHS/ -- GM07200/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Nov 18;222(4625):740-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6356356" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; DNA-Directed RNA Polymerases/*genetics ; Eukaryotic Cells/physiology ; Gene Expression Regulation ; Genes ; Humans ; Operon ; RNA Polymerase III/*genetics ; RNA, Ribosomal/genetics ; RNA, Transfer/genetics ; RNA, Viral/genetics ; Transcription Factors/genetics ; *Transcription, Genetic
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  • 33
    Publication Date: 1983-04-22
    Description: Exposure to competitive mental tasks significantly reduced the urinary sodium and fluid excreted by young men with one or two hypertensive parents or with borderline hypertension. In this high-risk group, the degree of retention was directly related to the magnitude of heart rate increase during stress, suggesting common mediation by way of the sympathetic nervous system. Thus, psychological stress appears to induce changes in renal excretory functions that may play a critical role in long-term blood pressure regulation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Light, K C -- Koepke, J P -- Obrist, P A -- Willis, P W 4th -- HL-01096/HL/NHLBI NIH HHS/ -- HL-18976/HL/NHLBI NIH HHS/ -- HL-23718/HL/NHLBI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1983 Apr 22;220(4595):429-31.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836285" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Blood Pressure ; Heart Rate ; Humans ; Hypertension/etiology/*physiopathology ; Kidney/physiopathology ; Male ; Risk ; Sodium/*metabolism ; Stress, Psychological/metabolism/*physiopathology ; *Water-Electrolyte Balance
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  • 34
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-06-03
    Description: Increases in penile circumference during sleep-related erections in human subjects closely reflected increases in penile blood flow, and bursts of activity in the bulbocavernosus and ischiocavernosus muscles were temporally related to these increases. The penile arterial system and the perineal muscles appear to have important coordinated roles in human penile erection. Monitoring sleep-related erections and penile blood flow holds promise for the study of erectile mechanisms and dysfunction and for screening of drugs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Karacan, I -- Aslan, C -- Hirshkowitz, M -- AG02414-03/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 1983 Jun 3;220(4601):1080-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6844930" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Electroencephalography ; Electromyography ; Electrooculography ; Heart Rate ; Humans ; Male ; Penis/blood supply/*physiology ; Sleep/physiology
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  • 35
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-08-19
    Description: Ia (I region-associated) antigens are cell-surface glycoproteins involved in the regulation of immune responsiveness. They are composed of one heavy (alpha) and one light (beta) polypeptide chain. We have sequenced the gene encoding the A beta d chain of the BALB/c mouse. The presence of six exons is predicted by comparison with the complementary DNA sequences of human beta chains and with partial protein sequence data for the A beta d polypeptide. Sequence comparisons have been made to other proteins involved in immune responses and the consequent implications for the evolutionary relationships of these genes are discussed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Malissen, M -- Hunkapiller, T -- Hood, L -- New York, N.Y. -- Science. 1983 Aug 19;221(4612):750-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6410508" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Biological Evolution ; Codon ; Genes ; *Genes, MHC Class II ; Macromolecular Substances ; Major Histocompatibility Complex ; Mice ; beta 2-Microglobulin/genetics
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  • 36
    Publication Date: 1983-11-04
    Description: The gene for glycoprotein D of herpes simplex virus type 1 (HSV-1) was expressed in stable mammalian cell lines. Glycoprotein D produced in these cells has a number of antigenic determinants in common with the native glycoprotein. Cell lines expressing glycoprotein D were used in an enzyme-linked immunosorbent assay to detect human antibodies to glycoprotein D. This strategy should prove useful in determining the extent to which the immune response to HSV-1 is directed toward glycoprotein D.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berman, P W -- Dowbenko, D -- Lasky, L A -- Simonsen, C C -- New York, N.Y. -- Science. 1983 Nov 4;222(4623):524-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6312563" target="_blank"〉PubMed〈/a〉
    Keywords: Antibodies, Viral/*analysis ; Base Sequence ; Cell Line ; Clone Cells ; DNA Restriction Enzymes ; DNA, Viral/genetics ; Enzyme-Linked Immunosorbent Assay ; *Genes ; *Genes, Viral ; Humans ; Plasmids ; Simplexvirus/genetics/*immunology ; Tetrahydrofolate Dehydrogenase/genetics ; *Viral Envelope Proteins ; Viral Proteins/*genetics/immunology
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  • 37
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-04-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cairns, J -- Boyle, D -- Frei, E 3rd -- New York, N.Y. -- Science. 1983 Apr 15;220(4594):252, 254, 256.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836271" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Antineoplastic Agents/*therapeutic use ; Child ; Child, Preschool ; Female ; Humans ; Infant ; Leukemia/drug therapy/mortality ; Male ; Neoplasms/*drug therapy/mortality ; United States
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  • 38
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-05-06
    Description: Plasma obtained from human subjects after exercise and injected intraperitoneally into rats elevated rat rectal temperature and depressed plasma iron and zinc concentrations. The pyrogenic component was heat-denaturable and had an apparent molecular weight of 14,000 daltons. Human mononuclear leukocytes obtained after exercise and incubated in vitro released a factor into the medium that also elevated body temperature in rats and reduced trace metal concentrations. These results suggest that endogenous pyrogen, a protein mediator of fever and trace metal metabolism during infection, is released during exercise.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cannon, J G -- Kluger, M J -- AI 13878/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1983 May 6;220(4597):617-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836306" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Animals ; Body Temperature/drug effects ; Female ; Humans ; *Interleukin-1 ; Iron/blood ; Leukocytes/physiology ; Male ; Molecular Weight ; *Physical Exertion ; Proteins/physiology ; Pyrogens/blood/*metabolism ; Rats ; Rats, Inbred Strains ; Zinc/blood
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  • 39
    Publication Date: 1983-04-01
    Description: Dynamic spatial patterns of correlation of electrical potentials recorded from the human brain were shown in diagrams generated by mathematical pattern recognition. The patterns for "move" and "no-move" variants of a brief visuospatial task were compared. In the interval spanning the P300 peak of the evoked potential, higher correlations of the right parietal electrode with occipital and central electrodes distinguished the no-move task from the move task. In the next interval, spanning the readiness potential in the move task, higher correlations of the left central electrode with occipital and frontal electrodes characterized the move task. These results conform to neuropsychological expectations of localized processing and their temporal sequence. The rapid change in the side and site of localized processes may account for conflicting reports of lateralization in studies which lacked adequate spatial and temporal resolution.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gevins, A S -- Schaffer, R E -- Doyle, J C -- Cutillo, B A -- Tannehill, R S -- Bressler, S L -- New York, N.Y. -- Science. 1983 Apr 1;220(4592):97-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6828886" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Brain/*physiology ; Electroencephalography ; Evoked Potentials ; Female ; Functional Laterality/*physiology ; Humans ; Male ; Psychomotor Performance/*physiology
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  • 40
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-11-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1983 Nov 25;222(4626):915.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6314505" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; *DNA Transposable Elements ; Viroids/*genetics
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  • 41
    Publication Date: 1983-08-26
    Description: The complete nucleotide sequence of the diphtheria tox228 gene encoding the nontoxic serologically related protein CRM228 has been determined. A comparison of the predicted amino acid sequence with the available amino acid sequences from the wild-type toxin made it possible to deduce essentially the entire nucleotide sequence of the wild-type tox gene. The signal peptide of pro-diphtheria toxin and the putative tox promoter have been identified, a highly symmetrical nucleotide sequence downstream of the toxin gene has been detected; this region may be the corynebacteriophage beta attachment site (attP). The cloned toxin gene was expressed at a low level in Escherichia coli.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaczorek, M -- Delpeyroux, F -- Chenciner, N -- Streeck, R E -- Murphy, J R -- Boquet, P -- Tiollais, P -- New York, N.Y. -- Science. 1983 Aug 26;221(4613):855-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6348945" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Cloning, Molecular ; Diphtheria Toxin/*genetics ; Escherichia coli/genetics ; Gene Expression Regulation ; Genes ; Genes, Bacterial ; Nucleic Acid Conformation ; Operon
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  • 42
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-06-24
    Description: An age-related accumulation of D-aspartic acid was detected in the white matter of ten normal brains from individuals aged 30 to 80 years. Gray matter showed no systematic increase in D-aspartic acid. The rate constant for D-aspartate formation in the brain is equal to the predicted value calculated for 37 degrees C. Accumulation of the uncommon D-aspartate isomer in myelinated white matter implies that there is little or no turnover of this tissue, and this may have a bearing on dysfunction of the aging brain or on other diseases of myelin.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Man, E H -- Sandhouse, M E -- Burg, J -- Fisher, G H -- New York, N.Y. -- Science. 1983 Jun 24;220(4604):1407-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857259" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; *Aging ; Aspartic Acid/*analysis/physiology ; *Brain Chemistry ; Eye Proteins/analysis ; Humans ; Lens Nucleus, Crystalline/analysis ; Middle Aged
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  • 43
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-07-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G -- New York, N.Y. -- Science. 1983 Jul 1;221(4605):32-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857260" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Brain Death ; Female ; Humans ; Male ; Mandatory Programs ; Middle Aged ; Tissue Donors ; *Tissue and Organ Procurement ; *Transplantation ; United States ; tissue are revolutionizing organ transplantation, but the current shortage of ; donated organs is expected to worsen. The reasons for this shortage and possible ; solutions to the problem are discussed briefly, and the ethical and legal ; implications of salvaging organs from brain-dead patients are mentioned. Presumed ; consent laws, already in force in several European countries, would drastically ; increase the number of available organs, but American ethicists are divided over ; a policy permitting automatic use of organs unless a person has left explicit ; instructions to the contrary.
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  • 44
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-05-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G -- New York, N.Y. -- Science. 1983 May 13;220(4598):705.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6403987" target="_blank"〉PubMed〈/a〉
    Keywords: 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine ; Adult ; Animals ; Cats ; *Disease Models, Animal ; Haplorhini ; Humans ; Male ; Parkinson Disease/physiopathology ; Parkinson Disease, Secondary/*chemically induced ; Pyridines/*adverse effects ; Rats ; Substantia Nigra/drug effects/physiopathology ; Swine
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  • 45
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-06-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G -- New York, N.Y. -- Science. 1983 Jun 10;220(4602):1137-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857238" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; Cholesterol/blood ; Coronary Disease/*blood ; Estrogens/*blood ; Humans ; Male ; Middle Aged ; Myocardial Infarction/blood ; Risk
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  • 46
    Publication Date: 1983-11-25
    Description: In a study of 763 adult patients we found serologic evidence of infection (a fourfold increase in antibodies) with Chlamydia trachomatis in 20.5 percent of the patients and with Mycoplasma pneumoniae in 10.6 percent, but with group A streptococcus (by culture) in only 9.1 percent. Pharyngitis, the most common problem for which patients seek medical care in the United States, may be caused by nonviral, potentially treatable organisms more often than had been suspected.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Komaroff, A L -- Aronson, M D -- Pass, T M -- Ervin, C T -- Branch, W T Jr -- Schachter, J -- EY 02216/EY/NEI NIH HHS/ -- HS 02063/HS/AHRQ HHS/ -- HS 04066/HS/AHRQ HHS/ -- New York, N.Y. -- Science. 1983 Nov 25;222(4626):927-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6415813" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Antibodies, Bacterial/analysis ; *Chlamydia Infections/diagnosis ; *Chlamydia trachomatis/immunology ; Humans ; Middle Aged ; Mycoplasma Infections/immunology ; Mycoplasma pneumoniae/immunology ; Pharyngitis/*etiology ; Prospective Studies ; Serologic Tests
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  • 47
    Publication Date: 1983-02-25
    Description: Four persons developed marked parkinsonism after using an illicit drug intravenously. Analysis of the substance injected by two of these patients revealed primarily 1-methyl-4-phenyl-1,2,5,6-tetrahydropyridine (MPTP) with trace amounts of 1-methyl-4-phenyl-4-propionoxy-piperidine (MPPP). On the basis of the striking parkinsonian features observed in our patients, and additional pathological data from one previously reported case, it is proposed that this chemical selectively damages cells in the substantia nigra.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Langston, J W -- Ballard, P -- Tetrud, J W -- Irwin, I -- New York, N.Y. -- Science. 1983 Feb 25;219(4587):979-80.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6823561" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Female ; Humans ; Male ; Meperidine/*analogs & derivatives/metabolism ; Opioid-Related Disorders/*complications ; Parkinson Disease, Secondary/*chemically induced/metabolism ; Substantia Nigra/drug effects
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  • 48
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-06-24
    Description: Human G gamma-globin genes containing tandem duplications of the donor (5') or acceptor (3') RNA splice sites of the second intervening sequence were constructed in order to ascertain the directionality of RNA splice site selection. These genes were introduced into cultured monkey cells, and their transcripts were analyzed. Transcripts of these duplication variants were spliced only at the proximal copy of the duplicated splice sites. These data are consistent with a 5' leads to 3' model of splice site selection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lang, K M -- Spritz, R A -- AM28598/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1983 Jun 24;220(4604):1351-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6304877" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cells, Cultured ; Globins/genetics ; Haplorhini ; Humans ; Plasmids ; *RNA Splicing ; RNA, Messenger/genetics/physiology ; Simian virus 40/genetics ; Transcription, Genetic
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  • 49
    Publication Date: 1983-04-15
    Description: Perceptual sensitivity to a visual target presented in a random continuous sequence of targets and nontargets decreased rapidly over time when stimuli were highly degraded visually but not when moderately degraded or undegraded. Large declines in sensitivity, independent of changes in response criterion, were found after only 5 minutes of observation. These rapid decrements of sensitivity to degraded targets seem to result from demands on the limited capacity of visual attention.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nuechterlein, K H -- Parasuraman, R -- Jiang, Q -- 784040-29867-5/PHS HHS/ -- MH 30911/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1983 Apr 15;220(4594):327-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836276" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; *Attention ; Child ; Discrimination (Psychology) ; Female ; Humans ; Male ; Memory ; Time Factors ; *Visual Perception
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  • 50
    Publication Date: 1983-12-23
    Description: A sensitive assay was used to measure the binding of iodine-125-labeled insulin in serum obtained from 112 newly diagnosed insulin-dependent diabetics before insulin treatment was initiated. Two groups of nondiabetics served as controls: children with a variety of diseases other than diabetes and nondiabetic siblings of insulin-dependent diabetics. Eighteen of the diabetics were found to have elevated binding and 36 were above the 95th percentile of control values. The insulin-binding protein is precipitated by antibody to human immunoglobulin G, has a displacement curve that is parallel and over the same concentration range as serum from long-standing insulin-dependent diabetics, and elutes from a Sephacryl S-300 column at the position of gamma globulin. These insulin antibodies are present in a large percentage of newly diagnosed, untreated diabetics and may be an immune marker of B-cell damage.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palmer, J P -- Asplin, C M -- Clemons, P -- Lyen, K -- Tatpati, O -- Raghu, P K -- Paquette, T L -- AM17047/AM/NIADDK NIH HHS/ -- AM30780/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1983 Dec 23;222(4630):1337-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6362005" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Autoantibodies/*analysis ; Child ; Diabetes Mellitus, Type 1/drug therapy/*immunology ; Humans ; Insulin/*immunology/therapeutic use
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  • 51
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-07-08
    Description: The nucleotide sequence of the oncogene of the Rasheed strain of rat sarcoma virus was determined. The oncogene (Ra-v-ras) encodes a 29,000-dalton (p29) transforming protein. This protein is distinct from the immunologically related 21,000-dalton protein (p21) of the Harvey murine sarcoma virus in its amino terminus and in having additional mutations in its carboxyl terminus. Although the functional significance of these changes is unknown, they appear to occur only in rat sarcoma virus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rasheed, S -- Norman, G L -- Heidecker, G -- CA 27246/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1983 Jul 8;221(4606):155-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6344220" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Mice ; Neoplasm Proteins/genetics ; *Oncogenes ; Proto-Oncogene Proteins p21(ras) ; Rats ; Retroviridae/*genetics
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  • 52
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-06-03
    Description: The nucleotide sequence of the T24 human bladder carcinoma oncogene was determined, and the coding and noncoding sequences of the genome were identified. The amino acid sequence of p21, the translational product of the T24 oncogene, was predicted from the nucleotide sequence of the oncogene. Comparison of this sequence with that of the normal cellular homolog showed that a single point mutation in the coding sequences of the T24 oncogene resulted in the acquisition of transforming properties. Other differences between the T24 oncogene and its normal cellular homolog were found in the 5' noncoding and 3' noncoding sequences, but these differences appear to be due to polymorphism and do not play a significant role in the transformation process.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reddy, E P -- New York, N.Y. -- Science. 1983 Jun 3;220(4601):1061-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6844927" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Carcinoma/*genetics ; Cell Transformation, Neoplastic/metabolism ; Humans ; Mice ; Neoplasm Proteins/genetics ; *Oncogenes ; Oncogenic Viruses/genetics ; Rats ; Urinary Bladder Neoplasms/*genetics
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  • 53
    Publication Date: 1983-05-20
    Description: A retrovirus belonging to the family of recently discovered human T-cell leukemia viruses (HTLV), but clearly distinct from each previous isolate, has been isolated from a Caucasian patient with signs and symptoms that often precede the acquired immune deficiency syndrome (AIDS). This virus is a typical type-C RNA tumor virus, buds from the cell membrane, prefers magnesium for reverse transcriptase activity, and has an internal antigen (p25) similar to HTLV p24. Antibodies from serum of this patient react with proteins from viruses of the HTLV-I subgroup, but type-specific antisera to HTLV-I do not precipitate proteins of the new isolate. The virus from this patient has been transmitted into cord blood lymphocytes, and the virus produced by these cells is similar to the original isolate. From these studies it is concluded that this virus as well as the previous HTLV isolates belong to a general family of T-lymphotropic retroviruses that are horizontally transmitted in humans and may be involved in several pathological syndromes, including AIDS.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barre-Sinoussi, F -- Chermann, J C -- Rey, F -- Nugeyre, M T -- Chamaret, S -- Gruest, J -- Dauguet, C -- Axler-Blin, C -- Vezinet-Brun, F -- Rouzioux, C -- Rozenbaum, W -- Montagnier, L -- New York, N.Y. -- Science. 1983 May 20;220(4599):868-71.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6189183" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*microbiology ; Adult ; Animals ; Antibodies, Viral/immunology ; Cells, Cultured ; Humans ; Male ; Microscopy, Electron ; RNA-Directed DNA Polymerase/metabolism ; Retroviridae/*isolation & purification ; T-Lymphocytes/microbiology ; Tumor Virus Infections/*microbiology
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  • 54
    Publication Date: 1983-05-13
    Description: A recombinant bacterial plasmid, pMS1, was constructed that contains 318 nucleotides complementary to a portion of pro-opiolipomelanocortin (proOLMC) messenger RNA from an ectopic adrenocorticotropin-producing tumor. The cloned complementary DNA insert, which contains the sequence that codes for all of the beta-melanocyte-stimulating hormone and beta-endorphin portions of proOLMC, as well as the 3' nontranslated section, is identical to the genomic sequence. Hybridization of tumor proOLMC complementary DNA to RNA subjected to electrophoresis and transferred to a nitrocellulose filter revealed two proOLMC messenger RNA species in the tumor polyadenylated RNA, but only one in pituitary polyadenylated RNA. At least one of the tumor proOLMC messenger RNA's is similar, if not identical, to human pituitary proOLMC messenger RNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉DeBold, C R -- Schworer, M E -- Connor, T B -- Bird, R E -- Orth, D N -- 2-R01-GM25526/GM/NIGMS NIH HHS/ -- 5-R01-CA11685/CA/NCI NIH HHS/ -- 5-R25-CA19429/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1983 May 13;220(4598):721-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6301015" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Carcinoid Tumor/physiopathology ; Cloning, Molecular ; DNA, Neoplasm/genetics ; DNA, Recombinant/*metabolism ; Endorphins/*genetics ; Hormones, Ectopic/*genetics ; Humans ; Male ; Melanocyte-Stimulating Hormones/*genetics ; Middle Aged ; Pancreatic Neoplasms/physiopathology ; Pituitary Hormones, Anterior/*genetics ; Pro-Opiomelanocortin ; Protein Precursors/*genetics ; RNA, Messenger/genetics ; beta-Endorphin
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  • 55
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-11-04
    Description: A pseudomemory of having been awakened by some loud noises during a night of the previous week was suggested to 27 highly hypnotizable subjects during hypnosis. Posthypnotically, 13 of them stated that the suggested event had actually occurred. This finding has implications for the investigative use of hypnosis in a legal context.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Laurence, J R -- Perry, C -- New York, N.Y. -- Science. 1983 Nov 4;222(4623):523-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6623094" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Female ; Humans ; *Hypnosis ; Male ; *Memory ; Middle Aged ; Personality
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  • 56
    Publication Date: 1983-11-18
    Description: The characteristic chromosomal translocations that occur in certain human malignancies offer opportunities to understand how two gene systems can affect one another when they are accidentally juxtaposed. In the case of Burkitt lymphoma, such a translocation joins the cellular oncogene, c-myc, to a region encoding one of the immunoglobulin genes. In at least one example, the coding sequence of the rearranged c-myc gene is identical to that of the normal gene, implying that the gene must be quantitatively, rather than qualitatively, altered in its expression if it is to play a role in transformation. One might expect to find the rearranged c-myc gene in a configuration that would allow it to take advantage of one of the known immunoglobulin promoters or enhancer elements. However, the rearranged c-myc gene is often placed so that it can utilize neither of these structures. Since the level of c-myc messenger RNA is often elevated in Burkitt cells, the translocation may lead to a deregulation of the c-myc gene. Further, since the normal allele in a Burkitt cell is often transcriptionally silent in the presence of a rearranged allele, a model for c-myc regulation is suggested that involves a trans-acting negative control element that might use as its target a highly conserved portion of the c-myc gene encoding two discrete transcriptional promoters.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Leder, P -- Battey, J -- Lenoir, G -- Moulding, C -- Murphy, W -- Potter, H -- Stewart, T -- Taub, R -- New York, N.Y. -- Science. 1983 Nov 18;222(4625):765-71.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6356357" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Burkitt Lymphoma/*genetics ; Cell Transformation, Neoplastic/etiology ; Chromosome Aberrations/*genetics ; Chromosome Disorders ; Chromosome Mapping ; Gene Expression Regulation ; Genes ; Humans ; Immunoglobulins/genetics ; Models, Biological ; Neoplasms/*genetics ; *Oncogenes ; *Translocation, Genetic
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 57
    Publication Date: 1983-02-04
    Description: The 5' nucleotide sequences of the transforming gene of simian sarcoma virus (v-sis) and its human cellular homolog (c-sis) were compared. A short homology was found between helper virus and cellular DNA sequences at the junction of v-sis and c-sis, which may have had a role in the original recombination event leading to the generation of simian sarcoma virus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Josephs, S F -- Dalla-Favera, R -- Gelmann, E P -- Gallo, R C -- Wong-Staal, F -- New York, N.Y. -- Science. 1983 Feb 4;219(4584):503-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6297002" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; *Genes, Viral ; Helper Viruses/genetics ; Humans ; *Oncogenes ; Recombination, Genetic ; Retroviridae/*genetics ; Sarcoma Virus, Woolly Monkey/*genetics
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  • 58
    Publication Date: 1983-02-18
    Description: The c-ras1H oncogene can be distinguished from its normal cellular counterpart by the loss of a restriction endonuclease site. This sequence alteration is the basis of a rapid screening method for the presence of this oncogene. DNA's from 34 individuals were screened by this method, and all were homozygous for the normal allele. In contrast, DNA from a patient's bladder tumor, as well as DNA from his normal bladder and leukocytes, were heterozygous at that restriction endonuclease site. Further restriction enzyme mapping pinpointed the change in the mutant allele as being one of two nucleotides, either of which would change the 12th amino acid (glycine) in the normal c-ras1H gene product. Point mutations in the codon for this amino acid have previously been described in a bladder tumor cell line and in the viral oncogene v-rasH. These results indicate that the patient carried a c-ras1H oncogene in his germ line, raising the possibility that the c-ras1H oncogene confers a predisposition to neoplasia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Muschel, R J -- Khoury, G -- Lebowitz, P -- Koller, R -- Dhar, R -- New York, N.Y. -- Science. 1983 Feb 18;219(4586):853-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6337398" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Cell Transformation, Neoplastic/pathology ; Humans ; Mutation ; *Oncogenes ; Urinary Bladder Neoplasms/*genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 59
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-07-22
    Description: Nucleotide sequences of translated regions of the trp operon in 12 wild strains of Escherichia coli reveal striking uniformity among eight strains (suggesting recent common ancestry and supporting the importance of periodic selection in natural populations) and clustered substitutions in four strains (implicating events affecting runs of nucleotides).〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Milkman, R -- Crawford, I P -- New York, N.Y. -- Science. 1983 Jul 22;221(4608):378-80.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6346486" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; DNA, Bacterial/genetics ; Escherichia coli/*genetics ; Genes, Bacterial
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  • 60
    Publication Date: 1983-04-29
    Description: Urine of the human fetus stimulated prostaglandin biosynthesis in vitro by increasing the conversion of arachidonic acid into prostaglandins. The stimulatory activity in urine from fetuses delivered at term after labor of spontaneous onset was greater than that in urine from fetuses delivered by cesarean section at term before the onset of labor. Such stimulation of prostaglandin biosynthesis by the fetal membranes, by way of a substance released into the urine and thence into amniotic fluid, could serve as a signal for the initiation of parturition.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Strickland, D M -- Saeed, S A -- Casey, M L -- Mitchell, M D -- 5-P50-HD11149/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1983 Apr 29;220(4596):521-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6573023" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Dinoprostone ; Extraembryonic Membranes/physiology ; Female ; Fetus/*physiology ; Humans ; *Labor Onset ; *Labor, Obstetric ; Male ; Pregnancy ; Prostaglandins/*biosynthesis ; Prostaglandins E/biosynthesis ; *Urine
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 61
    Publication Date: 1983-07-01
    Description: With a synthetic oligonucleotide mixture as probe, complementary DNA clones of C-reactive protein were isolated from an adult human liver complementary DNA library. The clones ranged in size from 700 to 1100 base pairs and were identified by partial DNA sequence analysis. One complementary DNA clone was used as a probe for hybridization with human-rodent DNA's isolated from somatic cell hybrids and bound to nitrocellulose filters (Southern blot analysis) to assign the human C-reactive protein gene to chromosome 1.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Whitehead, A S -- Bruns, G A -- Markham, A F -- Colten, H R -- Woods, D E -- AI15033/AI/NIAID NIH HHS/ -- HD4807/HD/NICHD NIH HHS/ -- HL22487/HL/NHLBI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1983 Jul 1;221(4605):69-71.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857266" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; C-Reactive Protein/*genetics ; *Chromosome Mapping ; *Chromosomes, Human, 1-3 ; Cloning, Molecular ; Cricetinae ; DNA/*genetics/isolation & purification ; Genes ; Humans ; Hybrid Cells/metabolism ; Mice
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  • 62
    Publication Date: 1983-11-18
    Description: Three mutations of the enzyme dihydrofolate reductase were constructed by oligonucleotide-directed mutagenesis of the cloned Escherichia coli gene. The mutations--at residue 27, aspartic acid replaced with asparagine; at residue 39, proline replaced with cysteine; and at residue 95, glycine replaced with alanine--were designed to answer questions about the relations between molecular structure and function that were raised by the x-ray crystal structures. Properties of the mutant proteins show that Asp-27 is important for catalysis and that perturbation of the local structure at a conserved cis peptide bond following Gly-95 abolishes activity. Substitution of cysteine for proline at residue 39 results in the appearance of new forms of the enzyme that correspond to various oxidation states of the cysteine. One of these forms probably represents a species cross-linked by an intrachain disulfide bridge between the cysteine at position 85 and the new cysteine at position 39.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Villafranca, J E -- Howell, E E -- Voet, D H -- Strobel, M S -- Ogden, R C -- Abelson, J N -- Kraut, J -- CA17374/CA/NCI NIH HHS/ -- F32 GM09375/GM/NIGMS NIH HHS/ -- GM10928/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Nov 18;222(4625):782-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6356360" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Disulfides ; Escherichia coli/genetics ; Gene Expression Regulation ; Genes ; Genes, Bacterial ; *Mutation ; Structure-Activity Relationship ; Tetrahydrofolate Dehydrogenase/*genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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