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  • American Association for the Advancement of Science (AAAS)  (71)
  • Annual Reviews
  • 1980-1984  (71)
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  • American Association for the Advancement of Science (AAAS)  (71)
  • Annual Reviews
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  • 1
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-02-08
    Description: The distribution of active polyadenylate-messenger RNA sequences in fractionated chicken liver chromatin was examined. A portion of these active gene sequences is concentrated in a DNA fraction retained by tightly bound nonhistone chromosomal proteins, while the nonretained DNA fraction is substantially depleted of a portion of these sequences. These findings suggest that the tightly bound nonhistones are physically associated with a subset of active gene sequences.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gates, D M -- Bekhor, I -- New York, N.Y. -- Science. 1980 Feb 8;207(4431):661-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7352280" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Chickens ; Chromatin/ultrastructure ; Chromosomal Proteins, Non-Histone/*metabolism ; DNA/*metabolism ; *Genes ; Liver/*metabolism ; Nucleic Acid Hybridization ; Protein Binding ; RNA, Messenger/genetics ; Sodium Chloride
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    Electronic ISSN: 1095-9203
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  • 2
    Publication Date: 1980-05-09
    Description: Olfactory sensitivity to acetic acid, isobutyric acid, and 2-sec-butyl-cyclohexanone was tested in 97 adult male twin pairs to determine the extent to which variation in odor perception was genetically determined. Analysis of the data revealed no evidence for heritability of olfactory sensitivity. However, factors significantly associated with odor perception included cigar, pipe, and cigarette smoking; body fatness; alcohol consumption; and diabetes mellitus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hubert, H B -- Fabsitz, R R -- Feinleib, M -- Brown, K S -- New York, N.Y. -- Science. 1980 May 9;208(4444):607-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7189296" target="_blank"〉PubMed〈/a〉
    Keywords: Acetates ; Adult ; Alcohol Drinking ; Butyrates ; Cyclohexanones ; *Environment ; Female ; *Genes ; Humans ; Male ; Middle Aged ; Pregnancy ; Sensory Thresholds ; Skinfold Thickness ; Smell/*physiology ; Smoking ; *Twins ; Twins, Dizygotic ; Twins, Monozygotic
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  • 3
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-01-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G B -- New York, N.Y. -- Science. 1980 Jan 25;207(4429):392-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7350671" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; *Genes ; Globins/genetics ; Histones/genetics ; Insulin/genetics ; Nucleic Acid Precursors/*genetics ; Transcription, Genetic
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  • 4
    Publication Date: 1980-09-19
    Description: A single DNA fragment containing both mu and delta immunoglobulin heavy chain genes has been cloned from normal BALB/c mouse liver DNA with a new lambda phage vector Charon 28. The physical distance between the membrane terminal exon of mu and the first domain of delta is 2466 base pairs, with delta on the 3' side of mu. A single transcript could contain a variable region and both mu and delta constant regions. The dual expression of immunoglobulins M and D on spleen B cells may be due to alternate splicing of this transcript.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, C P -- Tucker, P W -- Mushinski, J F -- Blattner, F R -- New York, N.Y. -- Science. 1980 Sep 19;209(4463):1348-53.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6774414" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/immunology ; Chromosome Deletion ; *Genes ; Immunoglobulin Constant Regions/genetics ; Immunoglobulin Heavy Chains/*genetics ; Immunoglobulin delta-Chains/*genetics ; Immunoglobulin mu-Chains/*genetics ; Liver/physiology ; Membrane Proteins/genetics ; Mice ; Myeloma Proteins/genetics ; Plasmids ; RNA, Messenger/genetics ; Recombination, Genetic
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  • 5
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-09-19
    Description: Transfection of cultured monkey kidney cells with recombinant DNA constructed with a cloned Escherichia coli gene that codes for xanthine-guanine phosphoribosyltransferase and several different SV40 DNA-based vectors, results in the synthesis of readily measurable quantities of the bacterial enzyme. Moreover, the physiological defect in purine nucleotide synthesis characteristic of human Lesch-Nyhan cells can be overcome by the introduction of the bacterial gene into these cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mulligan, R C -- Berg, P -- New York, N.Y. -- Science. 1980 Sep 19;209(4463):1422-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6251549" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Cloning, Molecular/methods ; DNA, Bacterial/*genetics ; *DNA, Recombinant ; Escherichia coli ; *Genes ; Haplorhini ; Humans ; Hypoxanthine Phosphoribosyltransferase/genetics ; Lesch-Nyhan Syndrome/*genetics ; Pentosyltransferases/*genetics ; Simian virus 40/genetics ; Transduction, Genetic ; Transformation, Genetic
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  • 6
    Publication Date: 1980-03-14
    Description: A 15.0-kilobase (kb) Eco RI DNA fragment from normal mouse Balb/c genomic DNA that contains sequences (sarc) homologous to the acquired cell sequences (src) of Moloney sarcoma virus (MSV) has been cloned in phage lambda. The sarc region (1.2 to 1.3 kb) of the 15.0-kb cell fragment is indistinguishable from the src region of two isolates of MSV as judged by heteroduplex and restriction endonuclease analyses. The cellular sequences flanking sarc show no homology to other MSV sequences. Whereas cloned subgenomic portions of MSV that contain src transformed NIH-3T3 cells in vitro, the cloned sarc fragment is inactive.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Oskarsson, M -- McClements, W L -- Blair, D G -- Maizel, J V -- Vande Woude, G F -- New York, N.Y. -- Science. 1980 Mar 14;207(4436):1222-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6243788" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Chromosome Mapping ; DNA Restriction Enzymes ; *Genes ; *Genes, Viral ; Mice ; Mice, Inbred BALB C/*genetics ; Moloney murine leukemia virus/*genetics ; Nucleic Acid Hybridization
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  • 7
    Publication Date: 1980-07-11
    Description: The human genes for growth hormone (GH), chorionic somatomammotropin (CSH), and a third growth hormone-like gene (GHL) have been located on chromosome 17 in humans. DNA fragments of 2.6, 2.8, and 9.5 kilobase pairs containing GH, CSH, and GHL, respectively, were identified in human genomic DNA, and a 7.5-kilobase DNA fragment related to growth hormone DNA sequences was found in mouse cells. In somatic hybrids of human and mouse cells containing reduced numbers of human chromosomes, but a normal complement of mouse chromosomes, the mouse, 7.5-kolobase DNA fragment was always present, whereas the 2.6-, 2.8-, and 9.5-kilobase human fragments were present only when human chromosome 17 was also present.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Owerbach, D -- Rutter, W J -- Martial, J A -- Baxter, J D -- Shows, T B -- New York, N.Y. -- Science. 1980 Jul 11;209(4453):289-92.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7384802" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cell Line ; *Chromosomes, Human, 16-18 ; *DNA/metabolism ; *Genes ; Growth Hormone/*biosynthesis ; Humans ; Hybrid Cells/metabolism ; Mice ; Placental Lactogen/*biosynthesis ; Translocation, Genetic
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  • 8
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-05-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1981 May 29;212(4498):1015-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6785883" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies/*genetics ; Base Sequence ; *Genes ; Humans ; Immunoglobulin Heavy Chains/genetics ; Immunoglobulin Light Chains/genetics ; Immunoglobulins/*genetics ; Transcription, Genetic
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  • 9
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-04-17
    Description: Vitellogenin is synthesized under estrogen control in the liver, extensively modified, transported to the ovary, and there processed to the yolk proteins lipovitellin and phosvitin. In the frog Xenopus laevis there are at least four distinct but related vitellogenin genes. The two genes A1 and A2 have a 95 percent sequence homology in their messenger RNA coding regions, and contain 33 introns that interrupt the coding region (exons) at homologous positions. Sequences and lengths of analogous introns differ, and many introns contain repetitive DNA elements. The introns in these two genes that have apparently arisen by duplication have diverged extensively by events that include deletions, insertions, and probably duplications. Rapid evolutionary change involving rearrangements and the presence of repeated DNA suggests that the bulk of the sequences within introns may not have any specific function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wahli, W -- Dawid, I B -- Ryffel, G U -- Weber, R -- New York, N.Y. -- Science. 1981 Apr 17;212(4492):298-304.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7209528" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cloning, Molecular ; DNA/genetics ; Estrogens/physiology ; Female ; *Genes ; Lipoproteins/*genetics ; Liver/secretion ; Male ; Oocytes/metabolism ; RNA, Messenger/metabolism ; Receptors, Estrogen/metabolism ; Repetitive Sequences, Nucleic Acid ; Vitellogenins/biosynthesis/*genetics ; Xenopus laevis/*genetics/metabolism
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  • 10
    Publication Date: 1981-07-10
    Description: Southern blot hybridization was used to identify human and other vertebrate DNA sequences that were homologous to cloned DNA fragments containing the oncogenic nucleic acid sequences of three different type C mammalian retroviruses (simian sarcoma virus, the Snyder-Theilen strain of feline sarcoma virus, and the Harvey strain of murine sarcoma virus). Each onc gene counterpart has a single genetic locus, which probably contains non-onc intervening sequences. The human DNA sequences may represent genes important to cell growth or cell differentiation, or both. Their identification and isolation may allow elucidation of their role in these processes and in neoplasias.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wong-Staal, F -- Dalla-Favera, R -- Franchini, G -- Gelmann, E P -- Gallo, R C -- New York, N.Y. -- Science. 1981 Jul 10;213(4504):226-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6264598" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; *Cell Transformation, Viral ; *Cloning, Molecular ; DNA/*genetics ; DNA, Viral/*genetics ; *Genes ; Humans ; Nucleic Acid Hybridization ; Retroviridae/*genetics ; Sarcoma Virus, Woolly Monkey/genetics ; Sarcoma Viruses, Murine/genetics ; Species Specificity
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  • 11
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1982-09-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1982 Sep 3;217(4563):921-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7112105" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Base Sequence ; *Genes ; Humans
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  • 12
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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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  • 13
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1984-10-26
    Description: Mutations in the Caenorhabditis elegans genes lin-14, lin-28, and lin-29 cause heterochronic developmental defects: the timing of specific developmental events in several tissues is altered relative to the timing of events in other tissues. These defects result from temporal transformations in the fates of specific cells, that is, certain cells express fates normally expressed by cells generated at other developmental stages. The identification and characterization of genes that can be mutated to cause heterochrony support the proposal that heterochrony is a mechanism for phylogenetic change and suggest cellular and genetic bases for heterochronic variation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ambros, V -- Horvitz, H R -- GM24663/GM/NIGMS NIH HHS/ -- GM24943/GM/NIGMS NIH HHS/ -- HD00369/HD/NICHD NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1984 Oct 26;226(4673):409-16.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6494891" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Caenorhabditis/*genetics ; Female ; *Genes ; Genetic Variation ; Male ; *Mutation ; *Phylogeny ; Time Factors
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  • 14
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1984-10-26
    Description: Procedures have now been developed for inserting functional genes into the bone marrow of mice. The most effective delivery system at present uses retroviral-based vectors to transfer a gene into murine bone marrow cells in culture. The genetically altered bone marrow is then implanted into recipient animals. These somatic cell gene therapy techniques are becoming increasingly efficient. Their future application in humans should result in at least partial correction of a number of genetic disorders. However, the safety of the procedures must still be established by further animal studies before human clinical trials would be ethical.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Anderson, W F -- New York, N.Y. -- Science. 1984 Oct 26;226(4673):401-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6093246" target="_blank"〉PubMed〈/a〉
    Keywords: Animal Experimentation ; Bone Marrow ; Containment of Biohazards ; DNA Viruses/genetics ; *DNA, Recombinant ; Ethics Committees, Research ; Ethics, Medical ; Federal Government ; Gene Expression Regulation ; *Genes ; Genetic Diseases, Inborn/*therapy ; *Genetic Engineering ; Genetic Vectors ; Government Regulation ; Humans ; Microinjections ; Operon ; Plasmids ; Retroviridae/genetics ; Risk Assessment ; Skin ; Transcription, Genetic ; future clinical trials in humans are being debated among scientists and policy ; makers. Anderson, chief of the Laboratory of Molecular Hematology at the National ; Heart, Lung, and Blood Institute, examines how soon gene therapy might be ; available for the treatment of diseases in humans, and what criteria should be ; met before experimentation with human subjects begins. He identifies delivery, ; gene expression, and safety as the three requisites that must be satisfied, and ; reviews the animal work that has been done in these areas. Human trials should ; begin only after more animal studies have demonstrated to local and federal ; review committees that gene therapy is safe and offers the possibility of benefit ; to patients.
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  • 15
    Publication Date: 1984-11-23
    Description: Endonuclease restriction (Hind III) fragments of DNA from Chinese hamster X mouse somatic cell hybrids hybridized with proline-rich protein complementary DNA clones only when the DNA was isolated from cells containing mouse chromosome 8, or a fragment of chromosome 8. The evidence suggests that proline-rich protein genes are located at the proximal portion of chromosome 8 toward the centromere.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Azen, E A -- Carlson, D M -- Clements, S -- Lalley, P A -- Vanin, E -- AM 19175/AM/NIADDK NIH HHS/ -- DEO 3658-19/DE/NIDCR NIH HHS/ -- GM 20069/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1984 Nov 23;226(4677):967-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6095444" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromosome Mapping ; DNA Restriction Enzymes ; *Genes ; Humans ; Mice ; Mice, Inbred Strains ; Nucleic Acid Hybridization ; Peptides/*genetics ; Proline-Rich Protein Domains ; Protein Biosynthesis ; RNA, Messenger/genetics ; Salivary Proteins and Peptides/*genetics ; Species Specificity
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  • 16
    Publication Date: 1984-10-19
    Description: A complementary DNA probe corresponding to the beta-chain gene of Ti, the human T lymphocyte receptor, has been molecularly cloned. The chromosomal origin of the Ti beta gene was determined with the complementary DNA by screening a series of 12 cell hybrid (mouse X human) DNA's containing overlapping subsets of human chromosomes. DNA hybridization (Southern) experiments showed that the human Ti beta gene resides on chromosome 7 and is thus not linked to the immunoglobulin loci or to the major histocompatibility locus in humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barker, P E -- Ruddle, F H -- Royer, H D -- Acuto, O -- Reinherz, E L -- AI 21226/AI/NIAID NIH HHS/ -- GM-09966/GM/NIGMS NIH HHS/ -- R0 1 AI 19807/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1984 Oct 19;226(4672):348-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6435246" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromosome Mapping ; *Chromosomes, Human, 6-12 and X ; Cloning, Molecular ; Dna ; *Genes ; Genetic Linkage ; Humans ; Hybrid Cells ; Immunoglobulin kappa-Chains/genetics ; Major Histocompatibility Complex ; Mice ; Nucleic Acid Hybridization ; Receptors, Antigen, T-Cell/*genetics
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  • 17
    Publication Date: 1984-11-23
    Description: A cloned complementary DNA derived from a messenger RNA transiently present at low abundance levels in early chick embryonic skeletal muscle hybridizes to a messenger RNA present at high abundance levels in cardiac muscle. Genomic DNA hybridization and nucleotide sequence identity of complementary DNA's from both heart and skeletal muscle demonstrate that the messenger RNA's from both sources are encoded by the same gene. The encoded polypeptide is a troponin T sequence which is probably a cardiac isoform. This single copy troponin T isogene is governed by different regulatory programs in heart and skeletal muscle differentiation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cooper, T A -- Ordahl, C P -- R01-GM32018/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1984 Nov 23;226(4677):979-82.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6095446" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Chick Embryo ; Chickens ; DNA Restriction Enzymes ; *Gene Expression Regulation ; *Genes ; Heart/*embryology ; Muscles/*embryology/metabolism ; Myocardium/metabolism ; Nucleic Acid Hybridization ; RNA, Messenger/genetics ; Troponin/*genetics ; Troponin T
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  • 18
    Publication Date: 1984-08-10
    Description: The gene for the circumsporozoite (CS) protein of Plasmodium falciparum has been cloned and its nucleotide sequence determined. The gene encodes a protein of 412 amino acids as deduced from the nucleotide sequence. The protein contains 41 tandem repeats of a tetrapeptide, 37 of which are Asn-Ala-Asn-Pro and four of which are Asn-Val-Asp-Pro. Monoclonal antibodies against the CS protein of Plasmodium falciparum were inhibited from binding to the protein by synthetic peptides of the repeat sequence. The CS protein of Plasmodium falciparum and the CS protein of a simian malaria parasite, Plasmodium knowlesi, have two regions of homology, one of which is present on either side of the repeat. One region contains 12 of 13 identical amino acids. Within the nucleotide sequence of this region, 25 of 27 nucleotides are conserved. The conservation of these regions in parasites widely separated in evolution suggests that they may have a function such as binding to liver cells and may represent an invariant target for immunity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dame, J B -- Williams, J L -- McCutchan, T F -- Weber, J L -- Wirtz, R A -- Hockmeyer, W T -- Maloy, W L -- Haynes, J D -- Schneider, I -- Roberts, D -- New York, N.Y. -- Science. 1984 Aug 10;225(4662):593-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6204383" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antibodies, Monoclonal/immunology ; Antigens, Surface/*genetics/immunology ; Base Sequence ; Epitopes/genetics ; *Genes ; Humans ; Liver/parasitology ; Malaria/*immunology ; Plasmodium/genetics ; Plasmodium falciparum/*genetics/immunology ; *Protozoan Proteins
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  • 19
    Publication Date: 1984-05-18
    Description: DNA replication in mammals is temporally bimodal. "Housekeeping" genes, which are active in all cells, replicate during the first half of the S phase of cell growth. Tissue-specific genes replicate early in those cells in which they are potentially expressed, and they usually replicate late in tissues in which they are not expressed. Replication during the first half of the S phase is, therefore, a necessary but not sufficient condition for gene transcription. A change in the replication timing of a tissue-specific gene appears to reflect the commitment of that gene to transcriptional competence or to quiescence during ontogeny. Most families of middle repetitive sequences replicate either early or late. These data are consistent with a model in which two functionally distinct genomes coexist in the nucleus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goldman, M A -- Holmquist, G P -- Gray, M C -- Caston, L A -- Nag, A -- GM 07526/GM/NIGMS NIH HHS/ -- GM23905/GM/NIGMS NIH HHS/ -- K04 HD 00323/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1984 May 18;224(4650):686-92.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6719109" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anura ; Chromatin/physiology ; Cricetinae ; DNA/physiology ; *DNA Replication ; *Genes ; HeLa Cells/metabolism ; Humans ; Nucleic Acid Hybridization ; *Repetitive Sequences, Nucleic Acid ; Replicon ; Transcription, Genetic
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  • 20
    Publication Date: 1984-12-14
    Description: The humoral immune response of the mouse to certain antigens is characterized by the dominant expression of a single or limited number of related, immunoglobulin variable region (V) structures by antibody-secreting lymphocytes. Such dominance could be due to preferred expression of these V regions in the B cell population prior to the immune response or could result from the action of selective or regulatory mechanisms during the immune response. Expression of a heavy chain variable region (VH) gene segment that partially encodes a V region structure that dominates the immune response to para-azophenylarsonate (Ars) in strain A mice was examined in the B cell population of Ars nonimmune mice. This VH gene segment participates in encoding several hundred thousand different V region structures expressed in this B cell population. The immune system is therefore capable of recurrently selecting a single V region structure from such a repertoire for dominant expression by antibody-secreting lymphocytes during an immune response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Manser, T -- Huang, S Y -- Gefter, M L -- AI13357/AI/NIAID NIH HHS/ -- CA28900/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1984 Dec 14;226(4680):1283-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6334361" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibody Diversity ; *Antibody Formation ; Azo Compounds/immunology ; B-Lymphocytes/immunology ; Base Sequence ; *Genes ; Hybridomas ; Immunoglobulin Variable Region/*genetics ; Mice ; Radioimmunoassay
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  • 21
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1984-11-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1984 Nov 30;226(4678):1064-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6093259" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/microbiology ; *Cloning, Molecular ; Deltaretrovirus/genetics ; *Genes ; Humans ; Receptors, Antigen, T-Cell/*genetics ; Receptors, Immunologic/*genetics ; Receptors, Interleukin-2 ; T-Lymphocytes/immunology
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  • 22
    Publication Date: 1984-09-07
    Description: A growth hormone minigene carrying its natural promoter (237 nucleotides of chromosomal DNA) was stably propagated in a murine retrovirus containing hypoxanthine-guanine phosphoribosyltransferase as a selectable marker. Glucocorticoid and thyroid hormone inducibility was transferred with the growth hormone gene. Recombinant virus with titers of 10(6) per milliliter was recovered. This demonstration that retroviruses can be used to transfer a nonselectable gene under its own regulatory control enlarges the scope of retroviral vectors as potent tools for gene transfer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, A D -- Ong, E S -- Rosenfeld, M G -- Verma, I M -- Evans, R M -- New York, N.Y. -- Science. 1984 Sep 7;225(4666):993-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6089340" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; DNA, Recombinant ; DNA, Viral/analysis ; Dexamethasone/pharmacology ; Gene Expression Regulation ; *Genes ; Genes, Viral ; Genetic Markers ; *Genetic Vectors ; Growth Hormone/biosynthesis/*genetics ; Hypoxanthine Phosphoribosyltransferase/genetics ; Mice ; Operon ; Phenotype ; RNA, Viral/genetics ; Rats ; Retroviridae/*genetics ; Transcription, Genetic ; Transfection ; Triiodothyronine/pharmacology
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  • 23
    Publication Date: 1984-03-23
    Description: Interferon-beta 1 (IFN-beta 1) complementary DNA was used as a hybridization probe to isolate human genomic DNA clones lambda B3 and lambda B4 from a human genomic DNA library. Blot-hybridization procedures and partial nucleotide sequencing revealed that lambda B3 is related to IFN-beta 1 (and more distantly to IFN-alpha 1). Analyses of DNA obtained from a panel of human-rodent somatic cell hybrids that were probed with DNA derived from lambda B3 showed that lambda B3 is on human chromosome 2. Similar experiments indicated that lambda B4 is not on human chromosomes 2, 5, or 9. The finding that DNA related to the IFN-beta 1 gene (and IFN-alpha 1 gene) is dispersed in the human genome raises new questions about the origins of the interferon genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sagar, A D -- Sehgal, P B -- May, L T -- Inouye, M -- Slate, D L -- Shulman, L -- Ruddle, F H -- AI-16262/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1984 Mar 23;223(4642):1312-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6546621" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Chromosome Mapping ; Chromosomes, Human/*analysis ; Chromosomes, Human, 1-3 ; Chromosomes, Human, 4-5 ; Chromosomes, Human, 6-12 and X ; Cloning, Molecular ; Cricetinae ; DNA/*analysis ; *Genes ; Humans ; Hybrid Cells ; Interferon Type I/*genetics ; Mice ; Nucleic Acid Hybridization
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  • 24
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1984-09-21
    Description: On the basis of an analysis of the human and rat calcitonin genes and of a related gene, alternative RNA processing represents a developmental strategy of the brain to dictate tissue-specific patterns of polypeptide synthesis. This regulation allows the calcitonin gene to generate two messenger RNA's, one encoding the precursor of a novel neuropeptide, referred to as CGRP, which predominates in the brain, and the second encoding the precursor to the hormone calcitonin which predominates in thyroid C cells. The distribution of CGRP in the central and peripheral nervous system and in endocrine and other organ systems suggests potential functions in nociception, ingestive behavior, cardiovascular homeostasis, and mineral metabolism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rosenfeld, M G -- Amara, S G -- Evans, R M -- New York, N.Y. -- Science. 1984 Sep 21;225(4668):1315-20.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6089345" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Calcitonin/*genetics ; Calcitonin Gene-Related Peptide ; Cloning, Molecular ; DNA/analysis ; DNA Restriction Enzymes ; *Genes ; Nerve Tissue Proteins/*genetics ; Neurons/*metabolism ; Phenotype ; *RNA Processing, Post-Transcriptional ; RNA, Messenger/*genetics ; Rats
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  • 25
    Publication Date: 1984-06-08
    Description: An H1 histone gene was isolated from a 15-kilobase human DNA genomic sequence. The presence of H2A, H2B, H3, and H4 genes in this same 15-kilobase fragment indicates that mammalian core and H1 histone genes are clustered.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carozzi, N -- Marashi, F -- Plumb, M -- Zimmerman, S -- Zimmerman, A -- Coles, L S -- Wells, J R -- Stein, G -- Stein, J -- GM 32010/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1984 Jun 8;224(4653):1115-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6719136" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; DNA/genetics ; *Genes ; HeLa Cells ; Histones/*genetics ; Humans ; Nucleic Acid Hybridization ; Rabbits ; Trout ; Xenopus
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  • 26
    Publication Date: 1984-08-10
    Description: A clone of complementary DNA encoding the circumsporozoite (CS) protein of the human malaria parasite Plasmodium falciparum has been isolated by screening an Escherichia coli complementary DNA library with a monoclonal antibody to the CS protein. The DNA sequence of the complementary DNA insert encodes a four-amino acid sequence: proline-asparagine-alanine-asparagine, tandemly repeated 23 times. The CS beta-lactamase fusion protein specifically binds monoclonal antibodies to the CS protein and inhibits the binding of these antibodies to native Plasmodium falciparum CS protein. These findings provide a basis for the development of a vaccine against Plasmodium falciparum malaria.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Enea, V -- Ellis, J -- Zavala, F -- Arnot, D E -- Asavanich, A -- Masuda, A -- Quakyi, I -- Nussenzweig, R S -- New York, N.Y. -- Science. 1984 Aug 10;225(4662):628-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6204384" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antibodies, Monoclonal/immunology ; Antigens, Surface/*genetics/immunology ; *Cloning, Molecular ; DNA/genetics ; Epitopes/*genetics ; *Genes ; Malaria/immunology ; Plasmodium falciparum/*genetics ; *Protozoan Proteins ; *Repetitive Sequences, Nucleic Acid
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  • 27
    Publication Date: 1984-08-10
    Description: Measurement of hepatic apolipoprotein II and vitellogenin II messenger RNA during chicken embryogenesis showed that these genes acquire estrogen responsiveness at different stages of development. Sensitive solution hybridization assays with excess complementary DNA showed that apolipoprotein II transcripts were induced to 500 molecules per cell at day 9, whereas induction of vitellogenin II messenger RNA was not found until day 11. Thus, two estrogen regulated genes of common function and coordinately regulated in the adult may be on independent developmental programs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Elbrecht, A -- Lazier, C B -- Protter, A A -- Williams, D L -- AM 18171/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1984 Aug 10;225(4662):639-41.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6740331" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apolipoproteins/analysis/genetics ; Apolipoproteins B ; Chick Embryo ; Estrogens/*physiology ; *Gene Expression Regulation ; *Genes ; Liver/analysis/embryology ; RNA, Messenger/genetics ; Receptors, Estrogen/metabolism ; Vitellogenins/analysis/genetics
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  • 28
    Publication Date: 1984-05-25
    Description: A pool of synthetic oligonucleotides was prepared based on the amino terminal amino acid sequence of tetanus toxin. This probe hybridized to plasmid DNA isolated from three toxigenic strains of Clostridium tetani but not to plasmid DNA from a nontoxigenic strain. These results show that the structural gene for the toxin is on the plasmid. The pCL1 plasmid from one of the toxigenic strains spontaneously deleted 22 kilobase pairs of DNA to form pCL2. Strains harboring this deleted plasmid are nontoxigenic. However, the probe mixture hybridized to pCL2, indicating that the DNA encoding the amino terminus of the toxin had not been deleted. Restriction endonuclease cleavage maps of pCL1 and pCL2 were constructed and indicate the approximate location and orientation of the structural gene for tetanus toxin.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Finn, C W Jr -- Silver, R P -- Habig, W H -- Hardegree, M C -- Zon, G -- Garon, C F -- New York, N.Y. -- Science. 1984 May 25;224(4651):881-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6326263" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; DNA Restriction Enzymes ; *Genes ; Nucleic Acid Hybridization ; *Plasmids ; Tetanus Toxin/*genetics
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  • 29
    Publication Date: 1984-04-13
    Description: We have found that a portion (150 base pairs) of the seventh exon of the human gamma fibrinogen gene is duplicated in the preceding intron. This duplicated sequence, termed a "pseudoexon," is flanked on each side by a single-copy inverted repeat sequence consisting of 102 base pairs. Frequencies of point substitutions indicate that both the pseudoexon and the inverted repeat sequence arose approximately 10 to 20 million years ago. The generality of this type of duplication is suggested by the occurrence of a similar duplication in the mouse immunoglobulin mu-delta region. As in the fibrinogen pseudoexon, the portion of the immunoglobulin mu-delta region containing the duplication and the inverted repeat was reported to be single-copy in the mouse genome. Since both of the first two single-copy inverted repeats to be sequenced are associated with regional duplications, it is likely that many of the single-copy inverted repeat sequences, which make up 1 to 2 percent of the genome, are also associated with regional duplications.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fornace, A J Jr -- Cummings, D E -- Comeau, C M -- Kant, J A -- Crabtree, G R -- New York, N.Y. -- Science. 1984 Apr 13;224(4645):161-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6322310" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; DNA/genetics ; DNA Replication ; DNA Transposable Elements ; Fibrinogen/*genetics ; *Genes ; Genes, MHC Class II ; Humans ; Immunoglobulins/*genetics ; Mice ; Nucleic Acid Hybridization ; Rats ; *Repetitive Sequences, Nucleic Acid
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  • 30
    Publication Date: 1984-09-21
    Description: Recombinant DNA technology has provided a vast new source of DNA markers displaying heritable sequence variation in humans. These markers can be used in family studies to identify the chromosomal location of defective genes causing nervous system disorders. The discovery of a DNA marker linked to Huntington's disease has opened new avenues of research into this disorder and may ultimately permit cloning and characterization of the defective gene.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gusella, J F -- Tanzi, R E -- Anderson, M A -- Hobbs, W -- Gibbons, K -- Raschtchian, R -- Gilliam, T C -- Wallace, M R -- Wexler, N S -- Conneally, P M -- NS16367/NS/NINDS NIH HHS/ -- NS20012/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1984 Sep 21;225(4668):1320-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6089346" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Base Sequence ; Chromosome Mapping ; Cloning, Molecular ; DNA/*genetics ; DNA Restriction Enzymes ; *DNA, Recombinant ; Female ; *Genes ; *Genetic Linkage ; *Genetic Markers ; Genetic Vectors ; Humans ; Huntington Disease/*genetics ; Male ; Mutation ; Pedigree ; Phenotype ; Polymorphism, Genetic
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  • 31
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1984-03-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G -- New York, N.Y. -- Science. 1984 Mar 30;223(4643):1376, 1378-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6367045" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Deaminase/deficiency ; Anemia, Sickle Cell/therapy ; Animals ; Bone Marrow Transplantation ; *Genes ; Genetic Diseases, Inborn/*therapy ; Humans ; Mice ; Retroviridae ; Thalassemia/therapy
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  • 32
    Publication Date: 1984-02-10
    Description: Data are presented suggesting a resolution to the paradox concerning the murine response subregion I-J, which encodes a suppressor T cell marker. The controversy arose when sequences corresponding to I-J DNA were not found in the central immune response region described by immunogeneticists. New evidence is presented that T cell surface I-J expression results from the action of at least two complementing genes. One gene is within the H-2 region on chromosome 17; the second gene, termed Jt, is on chromosome 4. The two recombinant mouse strains B10.A(3R) and B10.A(5R) originally used to define the I-J subregion apparently differ not within the H-2 region but elsewhere.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hayes, C E -- Klyczek, K K -- Krum, D P -- Whitcomb, R M -- Hullett, D A -- Cantor, H -- CA34106/CA/NCI NIH HHS/ -- T 32 CA 09106/CA/NCI NIH HHS/ -- T 32 GM 07215/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1984 Feb 10;223(4636):559-63.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6607530" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Monoclonal ; Antigens, Surface/*genetics ; Chromosome Mapping ; *Genes ; *Major Histocompatibility Complex ; Mice ; Mice, Inbred Strains ; Species Specificity ; T-Lymphocytes/*immunology
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  • 33
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1984-10-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1984 Oct 5;226(4670):35.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6236555" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cattle ; Eye Proteins/genetics ; *Genes ; Humans ; Photoreceptor Cells/analysis ; Protein Conformation ; Retinal Pigments/*genetics ; Rhodopsin/analysis/*genetics ; Rod Opsins
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  • 34
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1984-11-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1984 Nov 23;226(4677):955.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6505675" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; DNA, Mitochondrial/genetics ; Female ; *Genes ; Male ; Mice/*genetics ; Ranidae/*genetics ; Species Specificity
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  • 35
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1984-08-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1984 Aug 10;225(4662):607-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6429857" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, Surface/*genetics/immunology ; *Cloning, Molecular ; *Genes ; Haplorhini ; Humans ; Malaria/*immunology ; Plasmodium falciparum/*genetics/immunology ; *Protozoan Proteins
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  • 36
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1984-07-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1984 Jul 13;225(4658):155.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6729474" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Genes ; Mice ; Receptors, Antigen, T-Cell/*genetics
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  • 37
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1984-02-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1984 Feb 10;223(4636):573-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6229878" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, Surface/*genetics ; *Genes ; *Major Histocompatibility Complex ; Mice ; T-Lymphocytes, Regulatory/*immunology
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  • 38
    Publication Date: 1984-08-10
    Description: Mung bean nuclease was found to cut the genomic DNA of the malaria parasite Plasmodium at positions before and after genes but not within gene-coding regions. This cleavage, which had nearly the preciseness of a restriction nuclease, required controlled conditions in the presence of formamide. Southern blot analysis showed that the coding areas for Plasmodium actin, circumsporozoite protein, histidine-rich protein, ribosomal RNA's, and tubulin are each cleaved from genomic DNA to yield a single major band on an agarose gel. DNA sequence data on several clones of mung bean nuclease cleavage products containing the gene for the circumsporozoite protein of Plasmodium falciparum confirmed that cleavage sites are before and after genes. Recognition and cleavage of DNA did not seem to be related to any primary sequence but may be related to structural features of the DNA duplex that demarcate genes. Mung bean nuclease-cleaved DNA could be inserted directly into a lambda expression vector, yielding a representative but small gene bank of intact gene fragments.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McCutchan, T F -- Hansen, J L -- Dame, J B -- Mullins, J A -- New York, N.Y. -- Science. 1984 Aug 10;225(4662):625-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6330899" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Monoclonal/metabolism ; Antigens, Surface/genetics ; DNA/isolation & purification/*metabolism ; Electrophoresis, Agar Gel ; Endonucleases/*metabolism ; *Genes ; Macaca mulatta ; Plasmodium falciparum/*genetics ; *Protozoan Proteins ; Single-Strand Specific DNA and RNA Endonucleases
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 39
    Publication Date: 1984-01-13
    Description: T-cell growth factor (TCGF) or interleukin-2 (IL-2), an immunoregulatory lymphokine, is produced by lectin- or antigen-activated mature T lymphocytes and in a constitutive manner by certain T-cell lymphoma cell lines. By means of a molecular clone of human TCGF and DNA extracted from a panel of somatic cell hybrids (rodent cells X normal human lymphocytes), the TCGF structural gene was identified on human chromosome 4. In situ hybridization of the TCGF clone to human chromosomes resulted in significant labeling of the midportion of the long arm of chromosome 4, indicating that the TCGF gene was located at band q26-28. Genomic DNA from a panel of hybrids prepared with HUT-102 B2 cells was examined with the same molecular clone. In this clone of cells, which produces human T-cell leukemia virus, the TCGF gene was also located on chromosome 4 and was apparently not rearranged. The homologous TCGF locus in the domestic cat was assigned to chromosome B1 by using a somatic cell hybrid panel that segregates cat chromosomes. Linkage studies as well as high-resolution G-trypsin banding indicate that this feline chromosome is partially homologous to human chromosome 4.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Seigel, L J -- Harper, M E -- Wong-Staal, F -- Gallo, R C -- Nash, W G -- O'Brien, S J -- New York, N.Y. -- Science. 1984 Jan 13;223(4632):175-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6318318" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cats/*genetics ; Chromosome Banding ; Chromosome Mapping ; *Chromosomes ; *Chromosomes, Human, 4-5 ; Cloning, Molecular ; Deltaretrovirus ; *Genes ; Genetic Linkage ; Humans ; Hybrid Cells ; Interleukin-2/*genetics ; Nucleic Acid Hybridization
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  • 40
    Publication Date: 1980-08-01
    Description: Stage-specific changes in histone synthesis during sea urchin development reflect the expression of different sets of genes. The three kinds of blastomeres formed at the 16-cell stage are the earliest "determined" cells and fall into three distinct size classes. At this stage that cells synthesize only "early" histones. Such blastomeres can survive and divide in culture after being separated from the embryo, whether or not they are permitted to aggregate. With or without reaggregation, cultured progeny cells of each type of isolated blastomere perform the same changeover of histone synthesis as takes place in the intact embryo, that is, they begin spontaneously to synthesize a new set, the "late" histone variants. Normal contact relations among cells of the embryo are, therefore, not required for this programmed change in gene expression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arceci, R J -- Gross, P R -- New York, N.Y. -- Science. 1980 Aug 1;209(4456):607-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7394523" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blastomeres/*metabolism ; Cells, Cultured ; DNA/metabolism ; DNA, Superhelical/metabolism ; Embryo, Nonmammalian/*metabolism ; Female ; *Genes ; Histones/*biosynthesis ; Nucleosomes/metabolism ; *Protein Biosynthesis ; Sea Urchins ; *Transcription, Genetic
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  • 41
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-09-19
    Description: Methods are described that allow efficient expression in Escherichia coli of cloned eukaryotic genes. The methods require that the coding sequence of the gene in question be available in a form uninterrupted by intervening sequences (for example, as a complementary DNA clone). The gene products are synthesized unfused to other amino acid sequences. The genetic manipulations are simple, and require the plasmids described and commercially available enzymes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Guarente, L -- Roberts, T M -- Ptashne, M -- New York, N.Y. -- Science. 1980 Sep 19;209(4463):1428-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6158095" target="_blank"〉PubMed〈/a〉
    Keywords: Cloning, Molecular/*methods ; DNA, Bacterial/*genetics ; Escherichia coli/*genetics ; *Genes ; Globins/genetics ; Interferons/genetics ; Operon ; Peptide Chain Initiation, Translational ; Plasmids ; Protein Biosynthesis ; Transcription, Genetic ; Viral Proteins/genetics
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  • 42
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-09-19
    Description: Chemically synthesized DNA has been used in many recombinant DNA studies. These uses have included the total synthesis and cloning of functional genes, the cloning and expression of natural genes, and editing of changing genes by directed mutation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Itakura, K -- Riggs, A D -- New York, N.Y. -- Science. 1980 Sep 19;209(4463):1401-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6106285" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Cloning, Molecular/*methods ; DNA/*chemical synthesis ; DNA Restriction Enzymes ; *DNA, Recombinant ; *Genes ; *Genes, Synthetic ; Insulin/genetics ; Mutation ; Nucleic Acid Hybridization ; Oligodeoxyribonucleotides/chemical synthesis ; Somatostatin/genetics
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  • 43
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-08-01
    Description: Four recombinant lambda phages containing nucleotide sequences complementary to a cloned human preproinsulin DNA probe have been isolated from human DNA. Restriction analyses in conjunction with Southern hybridizations reveal two types of gene sequences. One isolate of each type was subjected to complete nucleotide sequence determination. The sequences contain the entire preproinsulin messenger RNA region, two intervening sequence. 260 nucleotides upstream from the messenger RNA capping site, and 35 nucleotides beyond the polyadenylate attachment site. Our results strongly suggest that these two gene types are allelic variants of a single insulin gene.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ullrich, A -- Dull, T J -- Gray, A -- Brosius, J -- Sures, I -- New York, N.Y. -- Science. 1980 Aug 1;209(4456):612-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6248962" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cloning, Molecular ; *Dna ; DNA Restriction Enzymes ; DNA, Recombinant/metabolism ; *Genes ; Genetic Code ; *Genetic Variation ; Humans ; Insulin/*biosynthesis ; Nucleic Acid Hybridization ; Proinsulin/biosynthesis ; Rats ; Species Specificity
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  • 44
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-01-23
    Description: Transcripts produced after injection of the Xenopus 5S RNA gene into oocyte germinal vesicles of mice migrate electrophoretically with the 5S RNA marker, an indication that the gene is transcribed and processed with considerable accuracy. Approximately two 5S RNA molecules are transcribed per gene per hour. This system may be useful in studying DNA processing and gene regulation by the mammalian ovum and might be modified to allow permanent incorporation of specific genes into mice.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brinster, R L -- Chen, H Y -- Trumbauer, M E -- HD 00239/HD/NICHD NIH HHS/ -- HD 12384/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1981 Jan 23;211(4480):396-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7194505" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Female ; *Genes ; Mice/*genetics ; Microinjections ; Molecular Weight ; Oocytes/*physiology ; Ovum/*physiology ; RNA, Ribosomal/*genetics ; *Transcription, Genetic ; Xenopus laevis/genetics
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  • 45
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-12-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gilbert, W -- New York, N.Y. -- Science. 1981 Dec 18;214(4527):1305-12.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7313687" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Chemical Phenomena ; Chemistry ; DNA/*genetics ; Eukaryotic Cells/physiology ; *Genes ; Hydrazines ; Lac Operon ; Methylation ; Prokaryotic Cells/physiology ; Sulfuric Acid Esters
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  • 46
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1982-08-27
    Description: Cellular genes potentially capable of inducing oncogenic transformation have been identified by homology to the transforming genes of retroviruses and by the biological activity of cellular DNA's in transfection assays. DNA's of various tumors induce transformation with high efficiencies, indicating that oncogenesis can involve dominant genetic alterations resulting in activation of cellular transforming genes. The identification and characterization of cellular transforming genes and their possible involvement in naturally occurring cancers, is discussed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cooper, G M -- New York, N.Y. -- Science. 1982 Aug 27;217(4562):801-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6285471" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; *Cell Transformation, Neoplastic ; Cells, Cultured ; Chick Embryo ; DNA/genetics ; DNA Restriction Enzymes ; DNA, Viral/genetics ; Gene Expression Regulation ; *Genes ; Genes, Viral ; Humans ; Mice ; Neoplasms/*genetics ; Oncogene Protein pp60(v-src) ; Rats ; Retroviridae/*genetics ; Transfection ; Viral Proteins/genetics
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  • 47
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1982-07-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1982 Jul 2;217(4554):42-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7089540" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacteria/genetics ; *Genes ; Humans ; *Species Specificity
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  • 48
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-07-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berg, P -- New York, N.Y. -- Science. 1981 Jul 17;213(4505):296-303.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6264595" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Chromosomes/*physiology/ultrastructure ; DNA Restriction Enzymes ; DNA, Recombinant ; DNA, Viral/genetics ; *Genes ; Histones ; Humans ; Plasmids ; RNA, Messenger/genetics ; Simian virus 40/genetics ; Transduction, Genetic
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  • 49
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-04-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berg, P -- Kornberg, R -- New York, N.Y. -- Science. 1981 Apr 17;212(4492):313-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7209530" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; *Gene Expression Regulation ; *Genes ; RNA, Messenger/metabolism
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  • 50
    Publication Date: 1981-06-05
    Description: A single recombinant lambda bacteriophage isolated from a human genome library contains two closely related human interferon genes of the leukocyte or alpha type. The two genes are separated by 12 kilobase pairs and are oriented in the same direction with respect to transcription. Comparisons of the DNA sequences of these two genes and interferon complementary DNA clones indicate that the two interferon genes lack intervening sequences.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lawn, R M -- Adelman, J -- Dull, T J -- Gross, M -- Goeddel, D -- Ullrich, A -- New York, N.Y. -- Science. 1981 Jun 5;212(4499):1159-62.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6165082" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteriophage lambda/genetics ; Base Sequence ; DNA Restriction Enzymes ; DNA, Recombinant/*metabolism ; *Genes ; Humans ; Interferons/*genetics ; Transcription, Genetic
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  • 51
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-05-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1981 May 22;212(4497):908-10.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7233182" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Biology ; *Culture ; *Genes ; Humans ; *Sociobiology
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  • 52
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-05-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1981 May 1;212(4494):530.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7209547" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; DNA/*genetics ; *Genes ; Genetic Linkage ; Histones/genetics ; Sea Urchins/genetics
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  • 53
    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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  • 54
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-11-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Birky, C W Jr -- GM19607/GM/NIGMS NIH HHS/ -- GM21896/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Nov 4;222(4623):468-75.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6353578" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Biological Evolution ; Cell Cycle ; Cell Nucleus/physiology ; Chromosomes/physiology ; DNA Replication ; Fungi/*genetics ; *Genes ; Mitochondria/physiology ; Organoids/*physiology ; Plants/*genetics ; Recombination, Genetic ; Reproduction ; Saccharomyces cerevisiae/genetics
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  • 55
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-11-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1983 Nov 4;222(4623):493.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6555898" target="_blank"〉PubMed〈/a〉
    Keywords: *Genes ; HeLa Cells/metabolism ; Humans ; Nucleic Acid Precursors/*genetics ; RNA Precursors ; RNA, Messenger/*genetics ; *Transcription, Genetic
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  • 56
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-06-19
    Description: A small portion of the cytosine residues in the DNA of higher eukaryotes as well as in that of many lowe eukaryotes if methylated. The resulting 5-methylcytosine residues occur in specific in the DNA, usually adjacent to guanine residues on the 3' side. This methylation of eukaryotic DNA has been proposed to function in many ways, including control of transcription, maintenance of chromosome structure, repair of DNA, establishment of preferred sites for mutation, oncogenic transformation, and, in certain systems, protection of DNA against enzymatic degradation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ehrlich, M -- Wang, R Y -- CA-19942/CA/NCI NIH HHS/ -- GM-26986/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1981 Jun 19;212(4501):1350-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6262918" target="_blank"〉PubMed〈/a〉
    Keywords: 5-Methylcytosine ; Animals ; Base Sequence ; Cytosine/*analogs & derivatives/analysis ; DNA/*genetics ; DNA Replication ; DNA Restriction Enzymes/metabolism ; *Genes ; Methylation ; Pyrimidines ; Species Specificity ; Substrate Specificity ; Transcription, Genetic
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  • 57
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-12-11
    Description: Genetic material has been successfully transferred into the genomes of newborn mice by injection of that material into pronuclei of fertilized eggs. Initial results indicated two patterns of processing the injected DNA: one in which the material was not integrated into the host genome, and another in which the injected genes became associated with high molecular weight DNA. These patterns are maintained through further development to adulthood. The evidence presented indicates the covalent association of injected DNA with host sequences, and transmission of such linked sequences in a Mendelian distribution to two succeeding generations of progeny.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gordon, J W -- Ruddle, F H -- GMO7959-01/GM/NIGMS NIH HHS/ -- GMO9966/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1981 Dec 11;214(4526):1244-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6272397" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Nucleus/*metabolism ; Crosses, Genetic ; DNA Restriction Enzymes ; DNA, Recombinant/*metabolism ; Embryo, Mammalian/*physiology ; Female ; *Genes ; Genetic Linkage ; Herpesviridae/enzymology ; Male ; Mice ; Nucleic Acid Hybridization ; Ovum/*physiology ; *Plasmids ; Pregnancy ; Sex Ratio ; Simian virus 40/enzymology ; Thymidine Kinase/*genetics
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  • 58
    Publication Date: 1983-12-16
    Description: Fragments of the recently cloned human gene for the beta subunit of nerve growth factor (beta-NGF) were used as hybridization probes in analyzing two sets of rodent-human somatic cell hybrids for the presence of human beta-NGF sequences. Results from the first set of hybrids assigned the human beta-NGF gene to chromosome 1 and ruled out the presence of sequences of comparable homology on any other chromosome. With the second set of hybrids, which contained seven different, but overlapping, regions of chromosome 1, the NGF locus was mapped to band 1p22.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Francke, U -- de Martinville, B -- Coussens, L -- Ullrich, A -- GM 26105/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Dec 16;222(4629):1248-51.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6648531" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromosome Banding ; Chromosome Mapping ; *Chromosomes, Human, 1-3 ; Cricetinae ; *Genes ; Humans ; Hybrid Cells ; Nerve Growth Factors/*genetics ; Nucleic Acid Hybridization ; Oncogenes
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  • 59
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-07-01
    Description: A temperature-sensitive lethal mutant of Drosophila melanogaster was used to identify an essential cell cycle function that is necessary for the mitotic condensation of heterochromatic but not of euchromatic portions of the genome. This mutant is an allele at a locus (mus-101) identified earlier by the use of mutagen-sensitive mutants. The data suggest that the mutagen-sensitive and repair-defective phenotypes of viable mus-101 mutants result from a disruption in chromosome organization.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gatti, M -- Smith, D A -- Baker, B S -- GM23345/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Jul 1;221(4605):83-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6407113" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Cycle ; Chromosomes/ultrastructure ; Drosophila melanogaster ; Female ; *Genes ; Heterochromatin/*genetics/physiology ; Male ; Mutation
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  • 60
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-05-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1983 May 27;220(4600):937-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6844920" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cloning, Molecular ; *Genes ; Humans ; *Major Histocompatibility Complex ; Mice ; Transplantation Immunology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 61
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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〉Kolata, G -- New York, N.Y. -- Science. 1983 Nov 25;222(4626):913-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6314504" target="_blank"〉PubMed〈/a〉
    Keywords: Chromosome Mapping ; Chromosomes, Human, 4-5 ; DNA Restriction Enzymes ; Disclosure ; *Ethics, Medical ; *Genes ; Genetic Markers ; Humans ; Huntington Disease/*genetics ; Research Subjects ; can be located with recombinant DNA techniques, that is so close to the ; Huntington's disease gene that its presence can be used as an indicator for that ; gene. If this marker is used as a diagnostic test for Huntington's disease, ; people at risk for getting the disease will be able to learn whether or not they ; will in fact develop the disease. The ability to predict the inevitable onset of ; this progressive, degenerative disease raises ethical questions about counseling, ; screening, and disclosure of risk status to patients and family members.
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  • 62
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-09-19
    Description: Immunoglobulin class switching involves specific DNA rearrangements of the gene segments coding for heavy chain constant regions (CH) during B lymphocyte differentiation. In two different cases of C mu to C alpha switching examined here (T15 and M603) and one taken from the literature (MC101), three different sites on the 5' side of C mu and three different sites on the 5' side of C alpha are joined together in the process of CH switching. The sequences surrounding the three germ-line C alpha sites of recombination are highly conserved blocks of 30 nucleotides that may serve as recognition sequences for CH switching to the C alpha gene. This putative recognition sequence is repeated 17 times in approximately 1400 nucleotides of the germ-line Calpha 5' flanking sequence. The lack of homology between this C alpha sequence and sequences reported for the C gamma 1 and C gamma 2b switch sites suggests that heavy chain switching is mediated by class-specific recognition sequences and, presumably, class-specific regulatory mechanisms. In addition, it appears that in one example (MC101) CH switching progressed from C mu to C alpha to C gamma 1. This switching pathway may present difficulties for the simple deletional model of CH switching.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Davis, M M -- Kim, S K -- Hood, L E -- AI 09072/AI/NIAID NIH HHS/ -- GM 07616/GM/NIGMS NIH HHS/ -- PCM76-81546/PC/NCI NIH HHS/ -- New York, N.Y. -- Science. 1980 Sep 19;209(4463):1360-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6774415" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/*immunology ; Base Sequence ; DNA/genetics ; *Genes ; Immunoglobulin Constant Regions/*genetics ; Immunoglobulin Heavy Chains/*genetics ; Immunoglobulin Variable Region/genetics ; Immunoglobulin alpha-Chains/*genetics ; Immunoglobulin mu-Chains/*genetics ; Immunoglobulins/*genetics ; Mice ; Myeloma Proteins/genetics ; Recombination, Genetic
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  • 63
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-07-18
    Description: A polymorphic HpaI endonuclease recognition site on the 3' side of the beta-globin gene was used to analyze the evolution of the beta-globin gene mutants S and C. Study of the world wide distribution of the normal and variant HpaI sites showed that the mutation which resulted in the variant 13.0-kilobase fragment arose in a localized region in West Africa. It predated the hemoglobin S and C mutations, both of which arose separately from a chromosome with the variant 13.0-kilobase HpaI site. In contrast, the sickle genes in other parts of Africa and in Asia are associated with the normal 7.6-kilobase HpaI fragment, indicating that the sickle mutations in these other areas arose separately from that in West Africa.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kan, Y W -- Dozy, A M -- New York, N.Y. -- Science. 1980 Jul 18;209(4454):388-91.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7384810" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; *Genes ; Genetics, Medical ; Geography ; Globins/genetics ; Hemoglobin C/*genetics ; Hemoglobin, Sickle/*genetics ; Humans
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  • 64
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-02-01
    Description: Genetic analysis of approach preferences for blue and red colors in 1-day-old, experientially naive quail, at 12th through 14th generations of bidirectional genetic selection, implicate four to eight segregating units of inheritance. Because the quails' initial approach choices are also readily modifiable by experience, these results point the way to studying the mediation of gene effects, environment effects, and gene-environment interactions in visually guided behaviors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kovach, J K -- New York, N.Y. -- Science. 1980 Feb 1;207(4430):549-51.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7352267" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Behavior, Animal/*physiology ; Color Perception/*physiology ; Coturnix/genetics/*physiology ; *Genes ; Hybridization, Genetic ; Phenotype ; Quail/*physiology ; Selection, Genetic
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  • 65
    Publication Date: 1980-07-11
    Description: Both hybrids of mouse and human microcells and whole cell hybrids generated by the fusion of primary mouse cells and SV40-transformed human fibroblasts were used to establish the syntenic association of the murine cytoplasmic superoxide dismutase and the interferon sensitivity genes on mouse chromosome 16. This assignment adds two new markers to chromosome 16 and provides another example of an evolutionarily conserved linkage. This finding also provides an animal model both for cellular responsiveness to interferon and for Down's syndrome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lin, P F -- Slate, D L -- Lawyer, F C -- Ruddle, F H -- New York, N.Y. -- Science. 1980 Jul 11;209(4453):285-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6155698" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Cell Transformation, Viral ; *Chromosomes, Human, 16-18 ; *Genes ; Humans ; Hybrid Cells/drug effects/*physiology ; Interferons/*pharmacology ; Karyotyping ; Mice ; Simian virus 40 ; Superoxide Dismutase/*genetics
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  • 66
    Publication Date: 1980-09-19
    Description: The alpha-like and beta-like subunits of human hemoglobin are encoded by a small family of genes that are differentially expressed during development. Through the use of molecular cloning procedures, each member of this gene family has been isolated and extensively characterized. Although the alpha-like and beta-like globin genes are located on different chromosomes, both sets of genes are arranged in closely linked clusters. In both clusters, each of the genes is transcribed from the same DNA strand, and the genes are arranged in the order of their expressions during development. Structural comparisons of immediately adjacent genes within each cluster have provided evidence for the occurrence of gene duplication and correction during evolution and have led to the discovery of pseudogenes, genes that have acquired numerous mutations that prevent their normal expression. Recently, in vivo and in vitro systems for studying the expression of cloned eukaryotic genes have been developed as a means of identifying DNA sequences that are necessary for normal gene function. This article describes the application of an in vitro transcription procedure to the study of human globin gene expression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Proudfoot, N J -- Shander, M H -- Manley, J L -- Gefter, M L -- Maniatis, T -- New York, N.Y. -- Science. 1980 Sep 19;209(4463):1329-36.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6158093" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Cell-Free System ; Fetal Hemoglobin/genetics ; *Genes ; Genes, Regulator ; Genetic Linkage ; Globins/*genetics ; Hemoglobins/*genetics ; Humans ; Operon ; RNA Caps ; RNA Polymerase II/metabolism ; *Transcription, Genetic
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  • 67
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-10-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wade, N -- New York, N.Y. -- Science. 1980 Oct 31;210(4469):509-11.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6932738" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bone Marrow Cells ; Ethics Committees, Research ; Gene Expression Regulation ; *Genes ; Genetic Engineering/*methods ; Globins/*genetics ; Humans ; Mice ; Risk Assessment ; Thalassemia/*genetics ; Universities
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  • 68
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-11-28
    Description: Half of the nucleotide substitutions during the evolutionary divergence of genes in animals, bacteria, and viruses are silent changes. These result from an inherent biochemical property of DNA and are fixed by genetic drift. Evolution may be viewed as a device for protecting DNA molecules from extinction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jukes, T H -- New York, N.Y. -- Science. 1980 Nov 28;210(4473):973-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7434017" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; *Biological Evolution ; Codon ; DNA/*genetics ; DNA, Viral/genetics ; *Genes ; Genetic Code ; Globins/genetics ; Histones/genetics ; Mutation ; RNA, Messenger/genetics
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  • 69
    Publication Date: 1980-09-19
    Description: The molecular structure of a mouse immunoglobulin D from a plasmacytoma tumor and that of the normal mouse gene coding for immunoglobulin D are presented. The DNA sequence results indicate an unusual structure for the tumor delta chain in two respects: (i) Only two constant (C) region domains, termed C delta 1 and C delta 3 by homology considerations, are found; the two domains are separated by an unusual hinge region C delta H that lacks cysteine residues and thus cannot provide the covalent cross-links between heavy chains typically seen in immunoglobulins. The two domains and hinge are all coded on separate exons. (ii) At the carboxyl end of the delta chain there is a stretch of 26 amino acids that is coded from an exon located 2750 to 4600 base pairs downstream from the rest of the gene. Analogy with immunoglobulin M suggests that this distally coded segment C delta DC may have a membrane-binding function; however, it is only moderately hydrophobic. A fifth potential exon (C delta AC), located adjacent to the 3' (carboxyl) end of C delta 3, could code for a stretch of 49 amino acids. The tumor's expression of the delta gene may be aberrant, but the simplest interpretation would be that this tumor expresses one of the several biologically significant forms of the delta chain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tucker, P W -- Liu, C P -- Mushinski, J F -- Blattner, F R -- New York, N.Y. -- Science. 1980 Sep 19;209(4463):1353-60.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6968091" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; B-Lymphocytes/*immunology ; Base Sequence ; *Genes ; Glycoproteins/genetics ; Immunoglobulin Constant Regions/genetics ; Immunoglobulin D/*genetics ; Mice ; Myeloma Proteins/genetics ; RNA, Messenger/*genetics ; Receptors, Antigen, B-Cell/genetics ; Structure-Activity Relationship
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  • 70
    Publication Date: 1984-11-30
    Description: A gene coding for the major histocompatibility antigen HLA-A2 was transferred into human HLA-A2 negative M1 cells and murine L cells. Following transfection, these cells expressed molecules at the cell surface that are biochemically indistinguishable from HLA-A2 antigens on the human cell line JY from which the HLA-A2 gene was isolated. The M1A2 cells were recognized and lysed by a cytolytic T-cell clone specific for HLA-A2. The transfected L cells which express HLA-A2 in association with human beta 2-microglobulin were not lysed by this T-cell clone. The specific cytolysis of M1A2 cells could be inhibited by monoclonal antibodies to HLA-A2, and monoclonal antibodies to T3, T8, and LFA-1 on cytotoxic T lymphocytes. These results suggest that killing by allospecific T cells requires HLA-A2 antigens as well as other species-specific structures on the target cell surface.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉van de Rijn, M -- Bernabeu, C -- Royer-Pokora, B -- Weiss, J -- Seidman, J G -- de Vries, J -- Spits, H -- Terhorst, C -- AI 19148/AI/NIAID NIH HHS/ -- AI-15066/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1984 Nov 30;226(4678):1083-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6333726" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Cytotoxicity, Immunologic ; *Genes ; HLA Antigens/*genetics ; HLA-A2 Antigen ; Humans ; L Cells (Cell Line)/immunology ; *Major Histocompatibility Complex ; Mice ; T-Lymphocytes, Cytotoxic/*immunology ; *Transfection
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  • 71
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1984-09-21
    Description: Some 30,000 genes are expressed exclusively in the rat brain, many of which contain a genetic element called an identifier sequence located in at least one of their introns. The identifier sequences are transcribed by RNA polymerase III exclusively in neurons to produce two RNA species, BC1 and BC2, of 160 and 100 to 110 nucleotides. This transcriptional event may define regions of chromatin that contain neuronal-specific genes and may poise these genes for transcription by polymerase II by rendering the gene promoters accessible to soluble trans-acting molecules.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sutcliffe, J G -- Milner, R J -- Gottesfeld, J M -- Reynolds, W -- GM32355/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1984 Sep 21;225(4668):1308-15.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6474179" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Brain/*metabolism ; Brain Stem/metabolism ; Cerebral Cortex/metabolism ; *Genes ; Neurons/*metabolism ; Nucleic Acid Conformation ; Operon ; Phenotype ; RNA Polymerase III/metabolism ; RNA, Messenger/genetics ; Rats ; Spinal Cord/metabolism ; Transcription, Genetic
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