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  • Articles  (37)
  • Gene Expression Regulation  (37)
  • American Association for the Advancement of Science (AAAS)  (37)
  • American Institute of Physics (AIP)
  • 1985-1989  (37)
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  • 1988  (37)
  • 1939
  • Chemistry and Pharmacology  (37)
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  • Articles  (37)
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  • American Association for the Advancement of Science (AAAS)  (37)
  • American Institute of Physics (AIP)
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  • 1985-1989  (37)
  • 1970-1974
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  • 1
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    Mammalian glucocorticoid receptor derivatives enhance transcription in yeast (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-08-19
    Description: In mammalian cells, the glucocorticoid receptor binds specifically to glucocorticoid response element (GRE) DNA sequences and enhances transcription from linked promoters. It is shown here that derivatives of the glucocorticoid receptor also enhance transcription when expressed in yeast. Receptor-mediated enhancement in yeast was observed in fusions of GRE sequences to the yeast cytochrome c1 (CYC1) promoter; the CYC1 upstream activator sequences were not essential, since enhancement was observed in fusions of GREs to mutant CYC1 promoters retaining only the TATA region and transcription startpoints. It is concluded that the receptor operates by a common, highly conserved mechanism in yeast and mammalian cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schena, M -- Yamamoto, K R -- CA20535-12/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1988 Aug 19;241(4868):965-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Biophysics, University of California, San Francisco 94143.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3043665" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; DNA/metabolism ; *Enhancer Elements, Genetic ; Gene Expression Regulation ; Immunoassay ; Plasmids ; Promoter Regions, Genetic ; Rats ; Receptors, Glucocorticoid/*genetics ; Saccharomyces cerevisiae/*genetics ; *Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
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    DNA looping (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-04-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schleif, R -- New York, N.Y. -- Science. 1988 Apr 8;240(4849):127-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Brandeis University, Waltham, Massachusetts 02254.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3353710" target="_blank"〉PubMed〈/a〉
    Keywords: DNA/*genetics ; DNA-Binding Proteins/physiology ; Eukaryotic Cells/physiology ; Gene Expression Regulation ; Nucleic Acid Conformation ; Prokaryotic Cells/physiology ; Regulatory Sequences, Nucleic Acid
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    Cloning of a lymphoid-specific cDNA encoding a protein binding the regulatory octamer DNA motif (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-07-29
    Description: An octamer DNA sequence plays a critical role in directing transcription of immunoglobulin genes in B lymphocytes. A new technique of direct binding of radioactive DNA was used to screen a complementary DNA expression library from the BJAB cell line in lambda gt11 phage to derive molecular cDNA clones representing a putative B lymphocyte-specific octamer binding protein. The plaques were screened with DNA containing four copies of the octamer sequence and positive phage recombinants were identified. The fusion protein produced on inducing a lysogen of one phage bound to a monomeric octamer probe. The cDNA insert from this phage hybridized to messenger RNA found in B lymphocytes, but not in most other cells. Thus, this cDNA derives from a gene (oct-2) that specifies an octamer binding protein expressed preferentially in B lymphocytes, proving that, for at least one gene, a cell-specific transcription factor exists and its amount is controlled through messenger RNA availability.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Staudt, L M -- Clerc, R G -- Singh, H -- LeBowitz, J H -- Sharp, P A -- Baltimore, D -- P01-CA42063/CA/NCI NIH HHS/ -- P30-CAL4051/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1988 Jul 29;241(4865):577-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, Cambridge, MA 02142.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3399892" target="_blank"〉PubMed〈/a〉
    Keywords: Cloning, Molecular ; DNA/genetics ; DNA-Binding Proteins/*physiology ; Gene Expression Regulation ; *Genes ; Humans ; Lymphocytes/*physiology ; *Regulatory Sequences, Nucleic Acid ; Transcription Factors/*physiology
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  • 4
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    The effect of histone gene deletions on chromatin structure in Saccharomyces cerevisiae (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-11-04
    Description: As a way of studying nucleosome assembly and maintenance in Saccharomyces cerevisiae, mutants bearing deletions or duplications of the genes encoding histones H2A and H2B were analyzed. Previous genetic analysis had shown that only one of these mutants exhibited dramatic and pleiotropic phenotypes. This mutant was also the only one that contained disrupted chromatin, suggesting that the original phenotypes were attributable to alterations in chromosome structure. The chromatin disruption in the mutant, however, did not extend over the entire genome, but rather was localized to specific regions. Thus, while the arrangement of nucleosomes over the HIS4 and GAL1 genes, the telomeres, and the long terminal repeats (delta sequences) of Ty retrotransposons appeared essentially normal, nucleosomes over the CYH2 and UBI4 genes and the centromere of chromosome III were dramatically disrupted. The observation that the mutant exhibited localized chromatin disruptions implies that the assembly or maintenance of nucleosomes differs over different parts of the yeast genome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Norris, D -- Dunn, B -- Osley, M A -- GM40118/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1988 Nov 4;242(4879):759-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2847314" target="_blank"〉PubMed〈/a〉
    Keywords: Centromere/ultrastructure ; Chromatin/physiology/*ultrastructure ; Chromosome Deletion ; DNA Transposable Elements ; Galactose ; Gene Expression Regulation ; Genes, Fungal ; Histidine ; Histones/*genetics ; Mutation ; Phenotype ; RNA, Messenger/genetics ; Repetitive Sequences, Nucleic Acid ; Saccharomyces cerevisiae/genetics/*ultrastructure ; Transcription, Genetic
    Print ISSN: 0036-8075
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  • 5
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    A transcriptional enhancer 3' of C beta 2 in the T cell receptor beta locus (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-07-08
    Description: Run-on transcription experiments were used to demonstrate that transcription of T cell receptor beta chain V genes is activated by DNA rearrangement, in a manner similar to immunoglobulin genes. A transcriptional enhancer likely to be involved in this activation has been identified. A 25-kilobase region from J beta 1 to V beta 14 was tested for enhancer activity by transient transfections, and an enhancer was found 7.5 kilobases 3' of C beta 2. The beta enhancer has low activity relative to the simian virus 40 viral enhancer, does not display a preference for V beta promoters, has a T cell-specific activity, and binds two purified immunoglobulin heavy chain enhancer factors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McDougall, S -- Peterson, C L -- Calame, K -- GM29361/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1988 Jul 8;241(4862):205-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Chemistry, UCLA School of Medicine 90024.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2968651" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromosome Mapping ; *Enhancer Elements, Genetic ; Gene Expression Regulation ; Genes, Immunoglobulin ; Immunoglobulin Heavy Chains/genetics ; In Vitro Techniques ; Mice ; Nuclear Proteins/physiology ; Receptors, Antigen, T-Cell/*genetics ; Receptors, Antigen, T-Cell, alpha-beta ; *Regulatory Sequences, Nucleic Acid ; Transcription Factors/physiology ; Transcription, Genetic
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Vasopressin mRNA in the suprachiasmatic nuclei: daily regulation of polyadenylate tail length (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-07-15
    Description: Daily variation has been found in the length of the polyadenylate tail attached to vasopressin messenger RNA in the suprachiasmatic nuclei, which is the location of an endogenous circadian pacemaker in mammals. No such variation was found in the supraoptic or paraventricular nuclei. This variation in the length of the polyadenylate tail may underlie the circadian rhythm of vasopressin peptide levels in cerebrospinal fluid and is a unique example of a daily rhythm in messenger RNA structure.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Robinson, B G -- Frim, D M -- Schwartz, W J -- Majzoub, J A -- 1P50HL36568/HL/NHLBI NIH HHS/ -- R01NS24542/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1988 Jul 15;241(4863):342-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3388044" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arginine Vasopressin/*physiology ; Biological Clocks ; Circadian Rhythm ; Gene Expression Regulation ; Poly A/*physiology ; RNA, Messenger/*physiology ; Rats ; Suprachiasmatic Nucleus/*physiology
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  • 7
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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
    Publication Date: 1988-12-23
    Description: 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〉
    Keywords: 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
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  • 8
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    Germline transformation used to define key features of heat-shock response elements (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-03-04
    Description: The heat-shock consensus element (HSE), CTNGAANNTTCNAG, is found in multiple copies upstream of all heat-shock genes. Here, the sequence requirements for heat-shock induction are tested by Drosophila germline transformation with an hsp70-lacZ gene fused to a pair of synthetic HSEs. Certain single-base substitutions in either HSE cause a dramatic reduction (forty-fold) in expression. Surprisingly, variations in sequences immediately flanking the HSEs also reduced levels of induction. One such variant that contains two perfect 14-base pair HSEs, which are correctly spaced relative to each other and the TATA box, retained only 7% of wild type-induced expression. These and additional analyses indicate that the heat-shock regulatory element includes sequences beyond the 14-base pair HSE and may be better described as a dimer of a 10-base pair sequence, NTTCNNGAAN.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xiao, H -- Lis, J T -- GM25232/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1988 Mar 4;239(4844):1139-42.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Biochemistry, Molecular and Cell Biology, Cornell University, Ithaca, NY 14853.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3125608" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Composition ; DNA, Recombinant ; Drosophila melanogaster/*genetics ; Gene Expression Regulation ; Heat-Shock Proteins/*genetics ; Hot Temperature ; Mutation ; Nucleic Acid Conformation ; Promoter Regions, Genetic ; *Regulatory Sequences, Nucleic Acid ; Repetitive Sequences, Nucleic Acid ; Transcription Factors/*metabolism ; *Transformation, Genetic
    Print ISSN: 0036-8075
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  • 9
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    A point mutation in the c-myc locus of a Burkitt lymphoma abolishes binding of a nuclear protein (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-06-24
    Description: A 20-base pair region in the first intron of the human c-myc gene was identified as the binding site of a nuclear protein. This binding site is mutated in five out of seven Burkitt lymphomas sequenced to date. To investigate the protein-recognition region in greater detail, the abnormal c-myc allele from a Burkitt lymphoma line (PA682) that carries a t(8;22) chromosomal translocation was used. A point mutation in the binding region of the PA682 c-myc DNA abolished binding of this nuclear protein. This protein may be an important factor for control of c-myc expression, and mutations in its recognition sequence may be associated with c-myc activation in many cases of Burkitt lymphoma.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zajac-Kaye, M -- Gelmann, E P -- Levens, D -- New York, N.Y. -- Science. 1988 Jun 24;240(4860):1776-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medicine Branch, National Cancer Institute, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2454510" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Burkitt Lymphoma/*genetics ; DNA-Binding Proteins/*metabolism ; Gene Expression Regulation ; Humans ; Molecular Sequence Data ; Mutation ; Nuclear Proteins/*metabolism ; *Oncogenes ; Proto-Oncogene Proteins/*genetics ; RNA/genetics ; RNA, Antisense ; Transcription, Genetic
    Print ISSN: 0036-8075
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  • 10
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    Independent molecular pathways in initiation and loss of hormone responsiveness of breast carcinomas (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-04-22
    Description: These studies were set up to determine whether those oncogenes participating in the initiation of mammary carcinogenesis (for example, ras oncogenes) play a direct role in the outcome of events associated with the late stages of tumor development such as loss of hormone dependency. Mammary carcinomas induced by a single carcinogenic insult in pubescent rats was selected as an in vivo model system with direct relevance to human breast cancer. Acquisition of hormone-independent growth in these carcinogen-induced tumors was found to be independent of the activation of ras oncogenes during the early stages of carcinogenesis. In agreement with these observations, introduction of a human ras oncogene into human MCF-7 breast carcinoma cells did not abrogate their hormonal dependency for growth in vivo. These findings suggest that those events responsible for the critical stages of breast cancer development occur independently and in an uncoordinated manner.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sukumar, S -- Carney, W P -- Barbacid, M -- N01-CO-74101/CO/NCI NIH HHS/ -- New York, N.Y. -- Science. 1988 Apr 22;240(4851):524-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Developmental Oncology Section, Basic Research Program, Frederick Cancer Research Facility, MD 21701.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3282307" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Breast Neoplasms/*physiopathology ; Cell Line ; Estrogens/*physiology ; Gene Expression Regulation ; *Genes, ras ; Humans ; Mammary Neoplasms, Experimental/*physiopathology ; Methylnitrosourea ; Mice ; Mice, Nude ; Neoplasm Transplantation ; Rats ; Receptors, Estrogen/*physiology
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  • 11
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    jun Is bustin' out all over (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-12-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1988 Dec 9;242(4884):1377-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3201229" target="_blank"〉PubMed〈/a〉
    Keywords: DNA-Binding Proteins/genetics/metabolism ; Gene Expression Regulation ; *Oncogenes ; Retroviridae Proteins/*genetics
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  • 12
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    Evolution's link to development explored (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-05-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1988 May 13;240(4854):880-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3363370" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Gene Expression Regulation ; *Genes ; *Growth ; Plant Development ; Plants/genetics
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  • 13
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    Activation of developmentally mutated human globin genes by cell fusion (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-11-18
    Description: Human fetal globin genes are not expressed in hybrid cells produced by the fusion of normal human lymphocytes with mouse erythroleukemia cells. In contrast, when lymphocytes from persons with globin gene developmental mutations (hereditary persistence of fetal hemoglobin) are used for these fusions, fetal globin is expressed in the hybrid cells. Thus, mutations of developmental origin can be reconstituted in vitro by fusing mutant lymphoid cells with differentiated cell lines of the proper lineage. This system can readily be used for analyses, such as globin gene methylation, that normally require large numbers of pure nucleated erythroid cells, which are difficult to obtain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Papayannopoulou, T -- Enver, T -- Takegawa, S -- Anagnou, N P -- Stamatoyannopoulos, G -- DK30852/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1988 Nov 18;242(4881):1056-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Hematology, University of Washington, Seattle 98195.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2461587" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Fusion ; Chromosome Deletion ; Fetal Hemoglobin/*genetics ; Gene Expression Regulation ; Globins/*genetics ; Hemoglobinopathies/*genetics ; Humans ; Leukemia, Erythroblastic, Acute ; Mice ; Mutation ; Promoter Regions, Genetic ; RNA, Messenger/genetics
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  • 14
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    The DNA-binding properties of the major regulatory protein alpha 4 of herpes simplex viruses (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-03-25
    Description: The transition from the expression of alpha, the first set of five herpes simplex virus genes expressed after infection, to beta and gamma genes, expressed later in infection, requires the participation of infected cell protein 4 (alpha 4), the major viral regulatory protein. The alpha 4 protein is present in complexes formed by proteins extracted from infected cells and viral DNA fragments derived from promoter domains. This report shows that the alpha 4 protein forms specific complexes with DNA fragments derived from 5' transcribed noncoding domains of late (gamma 2) genes whose expression requires viral DNA synthesis as well as functional alpha 4 protein. Some of the DNA fragments to which alpha 4 binds do not contain homologs of the previously reported DNA binding site consensus sequence, suggesting that alpha 4 may recognize and interact with more than one type of DNA binding site. The alpha 4 proteins can bind to DNA directly. A posttranslationally modified form of the alpha 4 protein designated alpha 4c differs from the alpha 4a and alpha 4b forms with respect to its affinity for DNA fragments differing in the nucleotide sequences of the binding sites.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Michael, N -- Spector, D -- Mavromara-Nazos, P -- Kristie, T M -- Roizman, B -- AI124009/AI/NIAID NIH HHS/ -- CA08494/CA/NCI NIH HHS/ -- CA19264/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1988 Mar 25;239(4847):1531-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Marjorie B. Kovler Viral Oncology Laboratories, University of Chicago, IL 60637.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2832940" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Binding Sites ; DNA, Viral/*metabolism ; DNA-Binding Proteins ; Electrophoresis, Polyacrylamide Gel ; Gene Expression Regulation ; Genes, Viral ; *Immediate-Early Proteins ; Immunoassay ; Molecular Sequence Data ; Sequence Homology, Nucleic Acid ; Simplexvirus/*analysis/genetics ; Transcription Factors ; Viral Proteins/*metabolism
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  • 15
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    cDNA expression cloning of the IL-1 receptor, a member of the immunoglobulin superfamily (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-07-29
    Description: Interleukin-1 alpha and -1 beta (IL-1 alpha and IL-1 beta) are cytokines that participate in the regulation of immune responses, inflammatory reactions, and hematopoiesis. A direct expression strategy was used to clone the receptor for IL-1 from mouse T cells. The product of the cloned complementary DNA binds both IL-1 alpha and IL-1 beta in a manner indistinguishable from that of the native T cell IL-1 receptor. The extracellular, IL-1 binding portion of the receptor is 319 amino acids in length and is composed of three immunoglobulin-like domains. The cytoplasmic portion of the receptor is 217 amino acids long.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sims, J E -- March, C J -- Cosman, D -- Widmer, M B -- MacDonald, H R -- McMahan, C J -- Grubin, C E -- Wignall, J M -- Jackson, J L -- Call, S M -- New York, N.Y. -- Science. 1988 Jul 29;241(4865):585-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Immunex Corporation, Seattle, WA 98101.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2969618" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cloning, Molecular ; DNA/genetics ; Gene Expression Regulation ; Genes, Immunoglobulin ; Interleukin-1/*physiology ; Mice ; Molecular Sequence Data ; *Multigene Family ; Receptors, Immunologic/*genetics ; Receptors, Interleukin-1
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  • 16
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    Developmental expression of PDGF, TGF-alpha, and TGF-beta genes in preimplantation mouse embryos (1988)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1988-09-30
    Description: Control of growth and differentiation during mammalian embryogenesis may be regulated by growth factors from embryonic or maternal sources. With the use of single-cell messenger RNA phenotyping, the simultaneous expression of growth factor transcripts in single or small numbers of preimplantation mouse embryos was examined. Transcripts for platelet-derived growth factor A chain (PDGF-A), transforming growth factor (TGF)-alpha, and TGF-beta 1, but not for four other growth factors, were found in whole blastocysts. TGF-alpha, TGF-beta 1, and PDGF antigens were detected in blastocysts by immunocytochemistry. Both PDGF-A and TGF-alpha were detected as maternal transcripts in the unfertilized ovulated oocyte, and again in blastocysts. TGF-beta 1 transcripts appeared only after fertilization. The expression of a subset of growth factors in mouse blastocysts suggests a role for these factors in the growth and differentiation of early mammalian embryos.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rappolee, D A -- Brenner, C A -- Schultz, R -- Mark, D -- Werb, Z -- 5T32 ES07106/ES/NIEHS NIH HHS/ -- HD22681/HD/NICHD NIH HHS/ -- HD23539/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1988 Sep 30;241(4874):1823-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Radiobiology and Environmental Health, University of California, San Francisco 94143-0750.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3175624" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blastocyst/*physiology ; Cleavage Stage, Ovum/physiology ; Embryonic Development ; Female ; Gene Expression Regulation ; Growth Substances/*genetics ; Mice ; Oocytes/physiology ; Platelet-Derived Growth Factor/*genetics ; Pregnancy ; RNA, Messenger/genetics ; Transcription, Genetic ; Transforming Growth Factors/*genetics
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  • 17
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    The cellular src gene product regulates junctional cell-to-cell communication (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-01-22
    Description: Overexpression of the cellular src gene in NIH 3T3 cells causes reduction of cell-to-cell transmission of molecules in the 400- to 700-dalton range. This down-regulation of gap junctional communication correlates with the activity of the gene product, the protein tyrosine kinase pp60c-src. The down-regulation was enhanced by point mutation of Tyr527 (a site that is phosphorylated in pp60c-src and that inhibits kinase activity) or by substitution of the viral-src for the cellular-src carboxyl-terminal coding region. Mutation of Tyr416 (a site phosphorylated upon Tyr527 mutation) suppresses both the down-regulation of communication by Tyr527 mutation and that by gene overexpression. The regulation of communication by src may be important in the control of embryonic development and cellular growth.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Azarnia, R -- Reddy, S -- Kmiecik, T E -- Shalloway, D -- Loewenstein, W R -- CA-14464/CA/NCI NIH HHS/ -- CA-32317/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1988 Jan 22;239(4838):398-401.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology and Biophysics, University of Miami School of Medicine, FL 33136.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2447651" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cell Communication ; Cell Line ; Cell Membrane Permeability ; Gene Expression Regulation ; *Intercellular Junctions ; Mice ; Mutation ; Phosphorylation ; Plasmids ; Protein-Tyrosine Kinases/*genetics ; Proto-Oncogene Proteins/genetics/*physiology ; Proto-Oncogene Proteins pp60(c-src) ; Structure-Activity Relationship ; Transcription, Genetic ; Transfection ; Tyrosine/metabolism
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  • 18
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    Cone cell-specific genes expressed in retinoblastoma (1988)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1988-04-01
    Description: Retinoblastoma, an intraocular tumor that occurs in children, has long been regarded, on the basis of morphological criteria, as a malignancy of the photoreceptor cell lineage. Here it is shown that when this tumor is grown in vitro, the cells express highly specialized photoreceptor cell genes. Transcripts for the transducin alpha subunit, TC alpha, which is specific to the cone cell, as well as transcripts for the red or green cone cell photopigment, were found in seven out of seven low-passage retinoblastoma cell lines. No marker genes specific to rod cell were expressed, suggesting that retinoblastoma has a cone cell lineage.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bogenmann, E -- Lochrie, M A -- Simon, M I -- EY04950/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 1988 Apr 1;240(4848):76-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Hematology Oncology, Childrens Hospital of Los Angeles, CA 90027.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2451289" target="_blank"〉PubMed〈/a〉
    Keywords: DNA/genetics ; Gene Expression Regulation ; Humans ; Membrane Proteins/*genetics ; Nucleic Acid Hybridization ; Photoreceptor Cells/*metabolism ; RNA/genetics ; Retinoblastoma/*genetics ; Transcription, Genetic ; Transducin ; Tumor Cells, Cultured
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  • 19
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    One factor recognizes the liver-specific enhancers in alpha 1-antitrypsin and transthyretin genes (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-02-12
    Description: Four different regulatory sites required for transcriptional stimulation by the enhancers of two unrelated liver-specific genes alpha 1-antitrypsin and transthyretin appear to bind the same nuclear protein that is found mainly in the liver. Such proteins may provide a basis for a coordinated, hepatocyte-specific control of gene transcription.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grayson, D R -- Costa, R H -- Xanthopoulos, K G -- Darnell, J E -- CA 160006-14/CA/NCI NIH HHS/ -- CA 18213-11/CA/NCI NIH HHS/ -- GM 1066-02/GM/NIGMS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1988 Feb 12;239(4841 Pt 1):786-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Rockefeller University, New York, NY 10021.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3257586" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Enhancer Elements, Genetic ; Gene Expression Regulation ; *Genes ; Genes, Regulator ; Liver/*metabolism ; Mice ; Mutation ; Nuclear Proteins/*physiology ; Prealbumin/*genetics ; *Transcription, Genetic ; alpha 1-Antitrypsin/*genetics
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  • 20
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    Virus-specific splicing inhibitor in extracts from cells infected with HIV-1 (1988)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1988-09-16
    Description: Human immunodeficiency virus type 1 (HIV-1), in contrast with most other retroviruses, encodes trans-regulatory proteins for virus gene expression. It is shown in this study, by means of an in vitro splicing system, that nuclear extracts obtained from cells infected with HIV-1 contain a factor (or factors) that specifically inhibits splicing of a synthetic SP6/HIV pre-messenger RNA (pre-mRNA)-containing donor and acceptor splice sites in the coding region for the envelope protein. It is also shown that the SP6/HIV pre-mRNA is not capable of assembly in a ribonucleoprotein complex, spliceosome, in extracts from infected cells. These findings raise the possibility that specific inhibition of pre-mRNA splicing in the envelope protein coding region by HIV-1 trans-regulatory factors might be one control mechanism for efficient production of structural viral proteins and virion assembly.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gutman, D -- Goldenberg, C J -- AI-24479/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1988 Sep 16;241(4872):1492-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, University of Miami School of Medicine, FL 33101.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3047873" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Nucleus/physiology ; Cloning, Molecular ; DNA Mutational Analysis ; Gene Expression Regulation ; HIV/*genetics ; HeLa Cells ; Humans ; RNA Processing, Post-Transcriptional ; *RNA Splicing ; RNA, Viral/*genetics ; Ribonucleoproteins/physiology
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  • 21
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    Hormone-sensitive lipase: sequence, expression, and chromosomal localization to 19 cent-q13.3 (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-09-16
    Description: Hormone-sensitive lipase, a key enzyme in fatty acid mobilization, overall energy homeostasis, and possibly steroidogenesis, is acutely controlled through reversible phosphorylation by catecholamines and insulin. The 757-amino acid sequence predicted from a cloned rat adipocyte complementary DNA showed no homology with any other known lipase or protein. The activity-controlling phosphorylation site was localized to Ser563 in a markedly hydrophilic domain, and a lipid-binding consensus site was tentatively identified. One or several messenger RNA species (3.3, 3.5, or 3.9 kilobases) were expressed in adipose and steroidogenic tissues and heart and skeletal muscle. The human hormone-sensitive lipase gene mapped to chromosome 19 cent-q13.3.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holm, C -- Kirchgessner, T G -- Svenson, K L -- Fredrikson, G -- Nilsson, S -- Miller, C G -- Shively, J E -- Heinzmann, C -- Sparkes, R S -- Mohandas, T -- New York, N.Y. -- Science. 1988 Sep 16;241(4872):1503-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical and Physiological Chemistry, University of Lund, Sweden.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3420405" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Chromosome Mapping ; *Chromosomes, Human, Pair 19 ; Cloning, Molecular ; DNA/genetics ; Gene Expression Regulation ; Humans ; Molecular Sequence Data ; Rats ; Sterol Esterase/*genetics
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  • 22
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    Molecular characterization of a functional cDNA encoding the serotonin 1c receptor (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-07-29
    Description: Neurons that release serotonin as a neurotransmitter project to most regions of the central and peripheral nervous system and mediate diverse neural functions. The physiological effects of serotonin are initiated by the activation of multiple, distinct receptor subtypes. Cloning in RNA expression vectors was combined with a sensitive electrophysiological assay in Xenopus oocytes in order to isolate a functional cDNA clone encoding the 5HTlc serotonin receptor. Injection of RNA transcribed in vitro from this clone into Xenopus oocytes elicits serotonin sensitivity. Mouse fibroblasts transformed with this clone bind serotonin agonists and antagonists and exhibit an increase in intracellular Ca2+ concentrations in response to serotonin. The sequence of the 5HTlc receptor reveals that it belongs to the family of G protein-coupled receptors, which are thought to traverse the cytoplasmic membrane seven times. Moreover, in situ hybridization and RNA blot analysis indicate that the 5HTlc receptor is expressed in neurons in many regions of the central nervous system and suggest that this subclass of receptor may mediate many of the central actions of serotonin.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Julius, D -- MacDermott, A B -- Axel, R -- Jessell, T M -- New York, N.Y. -- Science. 1988 Jul 29;241(4865):558-64.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biophysics, College of Physicians and Surgeons, Columbia University, New York, NY 10032.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3399891" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cloning, Molecular ; DNA/genetics ; Fibroblasts/physiology ; Gene Expression Regulation ; Membrane Glycoproteins/genetics ; Molecular Sequence Data ; Oocytes/physiology ; Phosphoproteins/physiology ; Rats ; Receptors, Serotonin/*genetics ; Serotonin/*physiology ; Xenopus laevis
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  • 23
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    Inactivation of the retinoblastoma susceptibility gene in human breast cancers (1988)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1988-07-08
    Description: Mutational inactivation of the retinoblastoma susceptibility (RB) gene, a recessive cancer gene, has been implicated in the genesis of retinoblastoma and certain other human neoplasms. This gene is now shown to be inactivated in two of nine human breast cancer cell lines examined. The RB gene of one cell line had a homozygous internal duplication of a 5-kilobase region containing exons 5 and 6. The RB messenger RNA transcript was correspondingly lengthened, and its translation was probably terminated prematurely due to a shifted reading frame. The other cell line had a homozygous deletion of the RB gene that removed the entire gene beyond exon 2. The RB gene product, pp110RB, was not detectable in either cell line by immuno-precipitation with specific antibodies. These findings are significant in relation to proposed genetic mechanisms of breast cancer formation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, E Y -- To, H -- Shew, J Y -- Bookstein, R -- Scully, P -- Lee, W H -- CA39537/CA/NCI NIH HHS/ -- EY00278/EY/NEI NIH HHS/ -- EY05758/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 1988 Jul 8;241(4862):218-21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, School of Medicine, University of California, San Diego, La Jolla 92093.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3388033" target="_blank"〉PubMed〈/a〉
    Keywords: Breast Neoplasms/*genetics ; Chromosomes, Human, Pair 13 ; DNA, Neoplasm/*genetics ; Gene Expression Regulation ; Genes ; Humans ; Retinoblastoma/*genetics ; Tumor Cells, Cultured
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  • 24
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    Heterologous expression of excitability proteins: route to more specific drugs? (1988)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1988-08-26
    Description: Many clinically important drugs act on the intrinsic membrane proteins (ion channels, receptors, and ion pumps) that control cell excitability. A major goal of pharmacology has been to develop drugs that are more specific for a particular subtype of excitability molecule. DNA cloning has revealed that many excitability proteins are encoded by multigene families and that the diversity of previously recognized pharmacological subtypes is matched, and probably surpassed, by the diversity of messenger RNAs that encode excitability molecules. In general, the diverse subtypes retain their properties when the excitability proteins are expressed in foreign cells such as oocytes and mammalian cell lines. Such heterologous expression may therefore become a tool for testing drugs against specific subtypes. In a systematic research program to exploit this possibility, major considerations include alternative processing of messenger RNA for excitability proteins, coupling to second-messenger systems, and expression of enough protein to provide material for structural studies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lester, H A -- New York, N.Y. -- Science. 1988 Aug 26;241(4869):1057-63.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biology, California Institute of Technology, Pasadena 91125.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2457947" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cell Physiological Phenomena ; Cloning, Molecular ; Drug-Related Side Effects and Adverse Reactions ; GTP-Binding Proteins/genetics/physiology ; Gene Expression Regulation ; *Genetic Variation ; Humans ; Ion Channels/drug effects/physiology ; Membrane Proteins/*genetics/physiology ; *Pharmacology ; Receptors, Cell Surface/drug effects/genetics/physiology
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  • 25
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    Distinct cloned class II MHC DNA binding proteins recognize the X box transcription element (1988)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1988-10-07
    Description: The class II (Ia) major histocompatibility complex (MHC) antigens are a family of integral membrane proteins whose expression is limited to certain cell types. A pair of consensus sequences, X and Y, is found upstream of all class II genes, and deletion of each of these sequences eliminates expression of transfected genes. Furthermore, the absence of a specific X box binding protein in patients with severe combined immunodeficiency disease whose cells lack class II suggests an important role for these proteins in class II regulation. Here, the cloning of two lambda gt11 complementary DNAs encoding DNA binding proteins (murine X box binding proteins lambda mXBP and lambda mXBP-2) is reported. Both phage-encoded fusion proteins bind specifically to the X box of the A alpha, but not to E alpha or E beta class II genes. These two independent isolates do not cross-hybridize. The lambda mXBP complementary DNA hybridizes to two RNA species, 6.2 and 3.0 kilobases in mouse, that are expressed in both Ia positive and Ia negative cells. By means of DNA blot analysis with the lambda mXBP complementary DNA insert and probes generated from each end of this complementary DNA insert, lambda mXBP was found to arise from a multigene family. These data illustrate the high degree of complexity in the transcriptional control of this coordinately regulated gene family.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liou, H C -- Boothby, M R -- Glimcher, L H -- New York, N.Y. -- Science. 1988 Oct 7;242(4875):69-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cancer Biology, Harvard School of Public Health, Boston, Massachusetts 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3140376" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; *Cloning, Molecular ; DNA-Binding Proteins/*genetics ; Gene Expression Regulation ; *Genes ; *Genes, MHC Class II ; Humans ; Mice ; Molecular Sequence Data ; *Transcription, Genetic ; Transfection
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  • 26
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    Apolipoprotein E: cholesterol transport protein with expanding role in cell biology (1988)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1988-04-29
    Description: Apolipoprotein E is a plasma protein that serves as a ligand for low density lipoprotein receptors and, through its interaction with these receptors, participates in the transport of cholesterol and other lipids among various cells of the body. A mutant form of apolipoprotein E that is defective in binding to low density lipoprotein receptors is associated with familial type III hyperlipoproteinemia, a genetic disorder characterized by elevated plasma cholesterol levels and accelerated coronary artery disease. Apolipoprotein E is synthesized in various organs, including liver, brain, spleen, and kidney, and is present in high concentrations in interstitial fluid, where it appears to participate in cholesterol redistribution from cells with excess cholesterol to those requiring cholesterol. Apolipo-protein E also appears to be involved in the repair response to tissue injury; for example, markedly increased amounts of apolipoprotein E are found at sites of peripheral nerve injury and regeneration. Other functions of apolipoprotein E, unrelated to lipid transport, are becoming known, including immunoregulation and modulation of cell growth and differentiation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mahley, R W -- New York, N.Y. -- Science. 1988 Apr 29;240(4852):622-30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Gladstone Foundation Laboratories for Cardiovascular Disease, University of California, San Francisco 94140-0608.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3283935" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Apolipoproteins E/genetics/*physiology ; Biological Transport ; Cholesterol/*metabolism ; Gene Expression Regulation ; Humans ; Hyperlipoproteinemia Type III/genetics/metabolism ; Immunity ; Lipid Metabolism ; Molecular Sequence Data ; Polymorphism, Genetic ; Protein Conformation ; Receptors, LDL/metabolism
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    Research on bacteria in the mainstream of biology (1988)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1988-06-10
    Description: The study of the genetics, biochemistry, and physiology of bacteria during the last 40 years has provided the concepts and methods for the study of cells of all types at the molecular level. Although much is already known about the mechanisms bacteria use to regulate the expression of their genes, a great deal more remains to be discovered that will have relevance to both prokaryotic and eukaryotic cells. Similarly, the study in bacteria of the transactions of DNA, of the synthesis and function of the cell membrane, of differentiation, and of the interaction with eukaryotic cells will undoubtedly produce results of general importance. The advantages of using bacteria for these studies include their simple noncompartmented structure, the accessibility of their genetic material, and the possibility of correlating the expression of a gene in the intact cell with its expression in a system composed of highly purified components. Finally, the comparative study of a wide variety of microorganisms may result in a better understanding of the evolution of prokaryotes and eukaryotes and lead to a comprehensive theory of cell biology.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Magasanik, B -- AM-13894/AM/NIADDK NIH HHS/ -- GM-07446/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1988 Jun 10;240(4858):1435-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Massachusetts Institute of Technology, Cambridge 02139.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3287618" target="_blank"〉PubMed〈/a〉
    Keywords: *Bacteria/genetics ; Escherichia coli/genetics ; Gene Expression Regulation ; Models, Biological ; Models, Genetic ; *Research Design
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    Expression and function of the segmentation gene fushi tarazu during Drosophila neurogenesis (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-01-08
    Description: Segmentation genes control cell identities during early pattern formation in Drosophila. One of these genes, fushi tarazu (ftz), is now shown also to control cell fate during neurogenesis. Early in development, ftz is expressed in a striped pattern at the blastoderm stage. Later, it is transiently expressed in a specific subset of neuronal precursor cells, neurons (such as aCC, pCC, RP1, and RP2), and glia in the developing central nervous system (CNS). The function of ftz in the CNS was determined by creating ftz mutant embryos that express ftz in the blastoderm stripes but not in the CNS. In the absence of ftz CNS expression, some neurons appear normal (for example, the aCC, pCC, and RP1), whereas the RP2 neuron extends its growth cone along an abnormal pathway, mimicking its sibling (RP1), suggesting a transformation in neuronal identity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Doe, C Q -- Hiromi, Y -- Gehring, W J -- Goodman, C S -- New York, N.Y. -- Science. 1988 Jan 8;239(4836):170-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, Stanford University, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2892267" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation ; Drosophila melanogaster/*embryology/genetics ; Gene Expression Regulation ; Genes, Homeobox ; Morphogenesis ; Nervous System/*embryology ; Neuroglia/cytology/physiology ; Neurons/cytology/physiology
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  • 29
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    Coordinate hormonal and synaptic regulation of vasopressin messenger RNA (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-08-19
    Description: Previous studies have shown that adrenalectomy augments arginine vasopressin (AVP) messenger RNA levels in the adult paraventricular nucleus. It is now demonstrated that unilateral lesions in the lateral septal nucleus enhance the adrenalectomy-induced expression of AVP mRNA. This effect was entirely ipsilateral to the lesion and most prominent in the rostral paraventricular nucleus and related nuclei. Moreover, AVP and AVP mRNA were found to be colocalized with oxytocin in a few neurons. These results indicate that mRNA expression is modulated by synaptic influences and raise the possibility that synaptically mediated selection of neuronal phenotypes is a dynamic feature of the mature central nervous system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baldino, F Jr -- O'Kane, T M -- Fitzpatrick-McElligott, S -- Wolfson, B -- New York, N.Y. -- Science. 1988 Aug 19;241(4868):978-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Products Department, E. I. du Pont de Nemours & Company, Wilmington, DE 19898.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3406747" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenalectomy ; Animals ; Gene Expression Regulation ; Male ; Neurons/analysis/*physiology ; Oxytocin/analysis ; Paraventricular Hypothalamic Nucleus/*physiology ; Phenotype ; RNA, Messenger/analysis/*biosynthesis ; Rats ; Rats, Inbred Strains ; Synapses/*physiology ; Vasopressins/analysis/*genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 30
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    Comparison of biological properties and transforming potential of human PDGF-A and PDGF-B chains (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-09-09
    Description: Human platelet-derived growth factor (PDGF) consists of two distinct but related polypeptide chains designated PDGF-A and PDGF-B. The gene encoding PDGF-B has given rise to the v-sis oncogene. In the present study the transforming activities of PDGF-A and PDGF-B genes are compared. The PDGF-A chain gene is markedly less efficient in inducing transformation than the PDGF-B gene under the influence of the same promoter. There are significant differences in the secretory and growth stimulating properties of the two chains. These properties appear to account for the much more potent transforming ability of the PDGF-B gene. These findings provide insights into biologic properties of a growth factor responsible for potent autocrine stimulation of abnormal cell proliferation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beckmann, M P -- Betsholtz, C -- Heldin, C H -- Westermark, B -- Di Marco, E -- Di Fiore, P P -- Robbins, K C -- Aaronson, S A -- New York, N.Y. -- Science. 1988 Sep 9;241(4871):1346-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Cellular and Molecular Biology, National Cancer Institute, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2842868" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Compartmentation ; Cell Line ; *Cell Transformation, Neoplastic ; Gene Expression Regulation ; Immunologic Techniques ; Mice ; Molecular Weight ; Platelet-Derived Growth Factor/*physiology ; Proto-Oncogene Proteins/*physiology ; Receptors, Cell Surface/*physiology ; Receptors, Platelet-Derived Growth Factor ; Solubility
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  • 31
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    Site-specific oligonucleotide binding represses transcription of the human c-myc gene in vitro (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-07-22
    Description: A 27-base-long DNA oligonucleotide was designed that binds to duplex DNA at a single site within the 5' end of the human c-myc gene, 115 base pairs upstream from the transcription origin P1. On the basis of the physical properties of its bound complex, it was concluded that the oligonucleotide forms a colinear triplex with the duplex binding site. By means of an in vitro assay system, it was possible to show a correlation between triplex formation at -115 base pairs and repression of c-myc transcription. The possibility is discussed that triplex formation (site-specific RNA binding to a DNA duplex) could serve as the basis for an alternative program of gene control in vivo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cooney, M -- Czernuszewicz, G -- Postel, E H -- Flint, S J -- Hogan, M E -- New York, N.Y. -- Science. 1988 Jul 22;241(4864):456-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Princeton University, NJ 08544.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3293213" target="_blank"〉PubMed〈/a〉
    Keywords: Electrophoresis ; Gene Expression Regulation ; Humans ; In Vitro Techniques ; Nucleic Acid Hybridization ; Oligodeoxyribonucleotides/*pharmacology ; Proto-Oncogene Proteins/*genetics ; *Proto-Oncogenes ; *Transcription, Genetic/drug effects
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 32
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    Isotypic exclusion of gamma delta T cell receptors in transgenic mice bearing a rearranged beta-chain gene (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-08-26
    Description: The rearrangement of T cell antigen receptor beta- and gamma-chain gene segments was studied in transgenic mice that bear a functional beta-chain gene. Virtually all CD3-positive T cells derived from transgenic mice express beta chains containing the transgene-encoded V beta 8.2 variable region on their surfaces and do not express endogenous beta-chain variable regions. Expression of endogenous V beta genes is inhibited at the level of somatic recombination during thymic ontogeny. Furthermore, rearrangements of the TCR gamma-chain genes are also markedly inhibited in these transgenic animals. Hence expression of the TCR beta transgene has led to allelic exclusion of alpha beta receptors and isotypic exclusion of gamma delta T cell receptors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fenton, R G -- Marrack, P -- Kappler, J W -- Kanagawa, O -- Seidman, J G -- New York, N.Y. -- Science. 1988 Aug 26;241(4869):1089-92.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Harvard Medical School, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2970670" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Antibodies, Monoclonal ; Bacteriophage lambda/genetics ; Cloning, Molecular ; DNA, Recombinant ; Enhancer Elements, Genetic ; Gene Expression Regulation ; Genes, Immunoglobulin ; Immunoassay ; Immunoglobulin Heavy Chains/genetics ; Liver/analysis ; Mice ; Mice, Transgenic ; Ovalbumin/immunology ; Receptors, Antigen, T-Cell/*genetics ; Recombination, Genetic ; T-Lymphocytes/metabolism ; Thymus Gland/analysis
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Nef protein of HIV-1 is a transcriptional repressor of HIV-1 LTR (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-09-16
    Description: In studies of the genetics of human immunodeficiency virus type 1 (HIV-1), the product of the nef gene, formerly known as F, 3'-orf, or B-ORF, was a negative regulator of HIV-1 replication. Proviruses with mutations in the nef gene replicated better than their standard counterparts during transient expression, and the mutant virus maintained its enhanced replication even after serial passages in T lymphocytes. The nef protein trans-suppressed, in a dose-dependent manner, the replication of wild-type and nef mutant proviruses and the expression of reporter genes linked to the HIV-1 long terminal repeat (LTR). The repression induced by the nef protein was mediated by inhibition of transcription from the HIV-1 LTR, which contains a far upstream cis element (previously recognized to be a negative regulatory element) between 340 and 156 nucleotides upstream of the RNA initiation site.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ahmad, N -- Venkatesan, S -- New York, N.Y. -- Science. 1988 Sep 16;241(4872):1481-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Microbiology, National Institute of Allergy and Infectious Diseases, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3262235" target="_blank"〉PubMed〈/a〉
    Keywords: Gene Expression Regulation ; Gene Products, nef ; HIV/*genetics ; Regulatory Sequences, Nucleic Acid ; Repetitive Sequences, Nucleic Acid ; Repressor Proteins/*physiology ; Retroviridae Proteins/*physiology ; Transcription Factors/*physiology ; Transcription, Genetic ; Virus Replication ; nef Gene Products, Human Immunodeficiency Virus
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    The steroid and thyroid hormone receptor superfamily (1988)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1988-05-13
    Description: Analyses of steroid receptors are important for understanding molecular details of transcriptional control, as well as providing insight as to how an individual transacting factor contributes to cell identity and function. These studies have led to the identification of a superfamily of regulatory proteins that include receptors for thyroid hormone and the vertebrate morphogen retinoic acid. Although animals employ complex and often distinct ways to control their physiology and development, the discovery of receptor-related molecules in a wide range of species suggests that mechanisms underlying morphogenesis and homeostasis may be more ubiquitous than previously expected.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Evans, R M -- New York, N.Y. -- Science. 1988 May 13;240(4854):889-95.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Salk Institute for Biological Studies, La Jolla, CA 92138-9216.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3283939" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Binding Sites ; DNA/metabolism ; Gene Expression Regulation ; Humans ; Receptors, Steroid/genetics/*physiology ; Receptors, Thyroid Hormone/genetics/*physiology
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  • 35
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    A quantitative bioassay for HIV-1 based on trans-activation (1988)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1988-01-08
    Description: A bioassay that is based on trans-activation has been developed for the detection and quantitation of the human immunodeficiency virus type 1 (HIV-1). Indicator cell lines were constructed that contain the HIV-1 long terminal repeat ligated to the chloramphenicol acetyltransferase (CAT) gene. Infection of these cells by HIV activates the expression of CAT protein. Isolates of HIV-1 with divergent nucleotide sequences activated the indicator cell lines to a similar extent, approximately 500- to 1000-fold. Human T cell lymphotropic viruses types 1 and 2, equine infectious anemia virus, and herpes simplex virus 1 did not activate the indicator cell lines. Isolates of simian immunodeficiency virus and human T cell lymphotropic virus type 4 activated these cells to a much lesser extent, which suggests that these viruses contain similar, but distinct, trans-activators. This assay can be used for the detection, quantitation, and typing of HIV and for studying the effect of drugs on the replication of HIV in different cellular backgrounds.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Felber, B K -- Pavlakis, G N -- N01-CO-74101/CO/NCI NIH HHS/ -- New York, N.Y. -- Science. 1988 Jan 8;239(4836):184-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Cancer Institute, Frederick Cancer Research Facility, Bionetics Research, Inc., MD 21701.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3422113" target="_blank"〉PubMed〈/a〉
    Keywords: Acetyltransferases/genetics ; Antiviral Agents/pharmacology ; Cell Line ; Chloramphenicol O-Acetyltransferase ; DNA, Recombinant ; Gene Expression Regulation ; Genes, Viral ; HIV/analysis/drug effects/*genetics ; Humans ; Promoter Regions, Genetic ; Repetitive Sequences, Nucleic Acid ; Virus Replication/drug effects
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    Conversion of normal behavior to shiverer by myelin basic protein antisense cDNA in transgenic mice (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-07-29
    Description: Myelin basic proteins (MBPs) are coded by the single gene necessary for myelin formation in the central nervous system of the mouse. An antisense MBP mini-gene was constructed and used to determine the function of antisense DNA in transgenic mice. Several transgenic offspring of a founder transgenic mouse, AS100, were converted from the normal to mutant shiverer phenotype. Antisense MBP messenger RNA was expressed in these mice, and the endogenous MBP messenger RNA, the MBP, and the myelination in the central nervous system were reduced.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Katsuki, M -- Sato, M -- Kimura, M -- Yokoyama, M -- Kobayashi, K -- Nomura, T -- New York, N.Y. -- Science. 1988 Jul 29;241(4865):593-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of DNA Biology, School of Medicine, Tokai University, Isehara, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2456614" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Brain/physiology ; DNA/genetics ; Gene Expression Regulation ; Mice ; Mice, Neurologic Mutants/*physiology ; Mice, Transgenic ; Molecular Sequence Data ; Myelin Basic Protein/genetics/*physiology ; Myelin Sheath/physiology ; Phenotype ; RNA/*genetics ; RNA, Antisense
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  • 37
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    The presence of fibroblast growth factor in the frog egg: its role as a natural mesoderm inducer (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-11-18
    Description: A complementary DNA clone corresponding to a 4.2-kilobase transcript that is present in the Xenopus oocyte and newly transcribed in the neurula stages of development has been isolated. This messenger RNA encodes a 155-amino acid protein that is 84% identical to the human basic fibroblast growth factor (bFGF). When expressed in Escherichia coli and purified, the Xenopus FGF induced mesoderm in animal cell blastomeres as measured by muscle actin expression. Immunoblots with an antibody to a Xenopus FGF peptide show that the oocyte and early embryo contain a store of the FGF polypeptide at high enough concentrations to induce mesoderm. The presence of FGF in the oocyte, together with the apparent lack of a secretory signal sequence in the protein, suggest that the regulation of mesoderm induction may involve novel mechanisms that occur after the translation of FGF.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kimelman, D -- Abraham, J A -- Haaparanta, T -- Palisi, T M -- Kirschner, M W -- New York, N.Y. -- Science. 1988 Nov 18;242(4881):1053-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Biophysics, University of California, San Francisco 94143.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3194757" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/genetics ; Amino Acid Sequence ; Animals ; Blotting, Northern ; Blotting, Western ; Cloning, Molecular ; DNA/genetics ; DNA Probes ; Fibroblast Growth Factors/*physiology ; Gene Expression Regulation ; Mesoderm/*cytology ; Molecular Sequence Data ; Oocytes/physiology ; Xenopus laevis/*embryology
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