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  • Artikel  (4)
  • Base Sequence  (4)
  • American Association for the Advancement of Science (AAAS)  (4)
  • Periodicals Archive Online (PAO)
  • Springer Nature
  • Allgemeine Naturwissenschaft  (4)
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  • Artikel  (4)
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  • American Association for the Advancement of Science (AAAS)  (4)
  • Periodicals Archive Online (PAO)
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  • 1
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    Group II introns designed to insert into therapeutically relevant DNA target sites in human cells (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-07-21
    Beschreibung: Mobile group II intron RNAs insert directly into DNA target sites and are then reverse-transcribed into genomic DNA by the associated intron-encoded protein. Target site recognition involves modifiable base-pairing interactions between the intron RNA and a 〉14-nucleotide region of the DNA target site, as well as fixed interactions between the protein and flanking regions. Here, we developed a highly efficient Escherichia coli genetic assay to determine detailed target site recognition rules for the Lactococcus lactis group II intron Ll.LtrB and to select introns that insert into desired target sites. Using human immunodeficiency virus-type 1 (HIV-1) proviral DNA and the human CCR5 gene as examples, we show that group II introns can be retargeted to insert efficiently into virtually any target DNA and that the retargeted introns retain activity in human cells. This work provides the practical basis for potential applications of targeted group II introns in genetic engineering, functional genomics, and gene therapy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Guo, H -- Karberg, M -- Long, M -- Jones, J P 3rd -- Sullenger, B -- Lambowitz, A M -- AI40981/AI/NIAID NIH HHS/ -- GM37949/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2000 Jul 21;289(5478):452-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Cellular and Molecular Biology, Department of Chemistry and Biochemistry, and Section of Molecular Genetics and Microbiology, School of Biological Sciences, University of Texas, Austin, TX 78712, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10903206" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Base Pairing ; Base Sequence ; Cell Line ; DNA/*genetics ; DNA, Viral/genetics ; Escherichia coli/genetics ; *Gene Targeting ; Genes, pol ; Genetic Therapy ; HIV-1/genetics ; Humans ; *Introns ; Lactococcus lactis/genetics ; Molecular Sequence Data ; Proviruses/genetics ; RNA, Catalytic/*genetics ; Receptors, CCR5/genetics ; Recombination, Genetic ; Transfection
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
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    Molecular cloning of two types of GAP complementary DNA from human placenta (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1988-12-23
    Beschreibung: The ras p21 GTPase-activating protein (GAP) was purified from human placental tissue. Internal amino acid sequence was obtained from this 120,000-dalton protein and, by means of this sequence, two types of complementary DNA clones were isolated and characterized. One type encoded GAP with a predicted molecular mass of 116,000 daltons and 96% identity with bovine GAP. The messenger RNA of this GAP was detected in human lung, brain, liver, leukocytes, and placenta. The second type appeared to be generated by a differential splicing mechanism and encoded a novel form of GAP with a predicted molecular mass of 100,400 daltons. This protein lacks the hydrophobic amino terminus characteristic of the larger species, but retains GAP activity. The messenger RNA of this type was abundantly expressed in placenta and in several human cell lines, but not in adult tissues.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Trahey, M -- Wong, G -- Halenbeck, R -- Rubinfeld, B -- Martin, G A -- Ladner, M -- Long, C M -- Crosier, W J -- Watt, K -- Koths, K -- New York, N.Y. -- Science. 1988 Dec 23;242(4886):1697-700.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Cetus Corp., Emeryville, CA 94608.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3201259" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Base Sequence ; Brain Chemistry ; *Cloning, Molecular ; DNA/*genetics/isolation & purification ; Female ; GTPase-Activating Proteins ; Gene Expression Regulation ; Humans ; Leukocytes/analysis ; Liver/analysis ; Lung/analysis ; Molecular Sequence Data ; Molecular Weight ; Nucleic Acid Hybridization ; Oligonucleotide Probes ; Placenta/*analysis ; Pregnancy ; Proteins/*genetics/isolation & purification ; RNA, Messenger/analysis/genetics ; Sequence Homology, Nucleic Acid ; ras GTPase-Activating Proteins
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
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    Natural selection and the origin of jingwei, a chimeric processed functional gene in Drosophila (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1993-04-02
    Beschreibung: The origin of new genes includes both the initial molecular events and subsequent population dynamics. A processed Drosophila alcohol dehydrogenase (Adh) gene, previously thought to be a pseudogene, provided an opportunity to examine the two phases of the origin of a new gene. The sequence of the processed Adh messenger RNA became part of a new functional gene by capturing several upstream exons and introns of an unrelated gene. This novel chimeric gene, jingwei, differs from its parent Adh gene in both its pattern of expression and rate of molecular evolution. Natural selection participated in the origin and subsequent evolution of this gene.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Long, M -- Langley, C H -- New York, N.Y. -- Science. 1993 Apr 2;260(5104):91-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Genetics, University of California, Davis 95616.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7682012" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Alcohol Dehydrogenase/*genetics ; Animals ; Base Composition ; Base Sequence ; Biological Evolution ; Blotting, Northern ; *Chimera ; Drosophila/*genetics ; Introns ; Molecular Sequence Data ; Polymerase Chain Reaction ; RNA/analysis/chemistry ; RNA, Messenger/analysis/chemistry ; *Selection, Genetic ; Species Specificity
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
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    Naturally occurring variation in bristle number and DNA polymorphisms at the scabrous locus of Drosophila melanogaster (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1994-12-09
    Beschreibung: The association between quantitative genetic variation in bristle number and molecular variation at a candidate neurogenic locus, scabrous, was examined in Drosophila melanogaster. Approximately 32 percent of the genetic variation in abdominal bristle number (21 percent for sternopleural bristle number) among 47 second chromosomes from a natural population was correlated with DNA sequence polymorphisms at this locus. Several polymorphic sites associated with large phenotypic effects occurred at intermediate frequency. Quantitative genetic variation in natural populations caused by alleles that have large effects at a few loci and that segregate at intermediate frequencies conflicts with the classical infinitesimal model of the genetic basis of quantitative variation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lai, C -- Lyman, R F -- Long, A D -- Langley, C H -- Mackay, T F -- GM45146/GM/NIGMS NIH HHS/ -- GM45344/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1994 Dec 9;266(5191):1697-702.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Population Biology, University of California at Davis 95616.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7992053" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Alleles ; Animals ; Base Sequence ; DNA/genetics ; *Drosophila Proteins ; Drosophila melanogaster/anatomy & histology/*genetics ; Female ; *Genes, Insect ; *Genetic Variation ; *Glycoproteins ; Haplotypes ; Linkage Disequilibrium ; Male ; Molecular Sequence Data ; Phenotype ; *Polymorphism, Genetic ; Proteins/*genetics ; Restriction Mapping ; Sense Organs/anatomy & histology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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