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  • Nucleic Acid Hybridization  (98)
  • American Association for the Advancement of Science (AAAS)  (98)
  • Cell Press
  • 1995-1999  (4)
  • 1985-1989  (94)
  • 1980-1984
  • 1975-1979
  • 1940-1944
  • 1999  (4)
  • 1989  (50)
  • 1986  (44)
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (98)
  • Cell Press
Years
  • 1995-1999  (4)
  • 1985-1989  (94)
  • 1980-1984
  • 1975-1979
  • 1940-1944
Year
  • 1
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    Genome maps 10. Comparative genomics. Mammalian radiations. Wall chart (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-11-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Brien, S J -- Eisenberg, J F -- Miyamoto, M -- Hedges, S B -- Kumar, S -- Wilson, D E -- Menotti-Raymond, M -- Murphy, W J -- Nash, W G -- Lyons, L A -- Menninger, J C -- Stanyon, R -- Wienberg, J -- Copeland, N G -- Jenkins, N A -- Gellin, J -- Yerle, M -- Andersson, L -- Womack, J -- Broad, T -- Postlethwait, J -- Serov, O -- Bailey, E -- James, M R -- Marshall Graves, J A -- New York, N.Y. -- Science. 1999 Oct 15;286(5439):463-78.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Cancer Institute, Frederick, MD, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10577209" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; *Chromosome Mapping ; Chromosome Painting ; *Genome ; *Genome, Human ; Humans ; Mammals/*genetics ; Nucleic Acid Hybridization ; Phylogeny
    Print ISSN: 0036-8075
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  • 2
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    The male determinant of self-incompatibility in Brassica (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-11-27
    Description: In the S locus-controlled self-incompatibility system of Brassica, recognition of self-related pollen at the surface of stigma epidermal cells leads to inhibition of pollen tube development. The female (stigmatic) determinant of this recognition reaction is a polymorphic transmembrane receptor protein kinase encoded at the S locus. Another highly polymorphic, anther-expressed gene, SCR, also encoded at the S locus, fulfills the requirements for the hypothesized pollen determinant. Loss-of-function and gain-of-function studies prove that the SCR gene product is necessary and sufficient for determining pollen self-incompatibility specificity, possibly by acting as a ligand for the stigmatic receptor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schopfer, C R -- Nasrallah, M E -- Nasrallah, J B -- GM57527/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1999 Nov 26;286(5445):1697-700.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Biology, Cornell University, Ithaca, NY 14853, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10576728" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Amino Acid Sequence ; Brassica/genetics/*physiology ; Cysteine/chemistry ; *Genes, Plant ; Germination ; Glycoproteins/genetics/metabolism ; Haplotypes ; Ligands ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Plant Proteins/chemistry/*genetics/metabolism/*physiology ; Plant Structures/genetics/physiology ; Pollen/genetics/*physiology ; Polymorphism, Genetic ; Protein Kinases/genetics/metabolism ; Sequence Alignment ; Transformation, Genetic
    Print ISSN: 0036-8075
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  • 3
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    Repairing the genome's spelling mistakes (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-08-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gura, T -- New York, N.Y. -- Science. 1999 Jul 16;285(5426):316-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10438292" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Crigler-Najjar Syndrome/therapy ; DNA/chemistry/metabolism ; *DNA Repair ; Genes, Plant ; *Genetic Engineering ; Genetic Therapy/*methods ; Humans ; Mutagenesis ; Nucleic Acid Hybridization ; Oligonucleotides/metabolism ; Plants/genetics ; RNA/chemistry/metabolism ; Recombination, Genetic
    Print ISSN: 0036-8075
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  • 4
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    Comparative genomics of BCG vaccines by whole-genome DNA microarray (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-05-29
    Description: Bacille Calmette-Guerin (BCG) vaccines are live attenuated strains of Mycobacterium bovis administered to prevent tuberculosis. To better understand the differences between M. tuberculosis, M. bovis, and the various BCG daughter strains, their genomic compositions were studied by performing comparative hybridization experiments on a DNA microarray. Regions deleted from BCG vaccines relative to the virulent M. tuberculosis H37Rv reference strain were confirmed by sequencing across the missing segment of the H37Rv genome. Eleven regions (encompassing 91 open reading frames) of H37Rv were found that were absent from one or more virulent strains of M. bovis. Five additional regions representing 38 open reading frames were present in M. bovis but absent from some or all BCG strains; this is evidence for the ongoing evolution of BCG strains since their original derivation. A precise understanding of the genetic differences between closely related Mycobacteria suggests rational approaches to the design of improved diagnostics and vaccines.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Behr, M A -- Wilson, M A -- Gill, W P -- Salamon, H -- Schoolnik, G K -- Rane, S -- Small, P M -- New York, N.Y. -- Science. 1999 May 28;284(5419):1520-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Infectious Diseases, Department of Medicine, McGill University Health Centre, Montreal H3G 1A4, Canada. mbgq@musica.mcgill.ca〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10348738" target="_blank"〉PubMed〈/a〉
    Keywords: BCG Vaccine/*genetics/immunology ; DNA, Bacterial/genetics ; Evolution, Molecular ; *Gene Deletion ; Genetic Variation ; *Genome, Bacterial ; Humans ; Mycobacterium bovis/*genetics/immunology/pathogenicity ; Mycobacterium tuberculosis/*genetics/immunology/pathogenicity ; Nucleic Acid Hybridization ; *Oligonucleotide Array Sequence Analysis ; Open Reading Frames ; Polymerase Chain Reaction ; Vaccines, Attenuated ; Virulence
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  • 5
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    The myeloperoxidase gene in acute promyelocytic leukemia (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1989 May 19;244(4906):823-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2543068" target="_blank"〉PubMed〈/a〉
    Keywords: *Chromosome Mapping ; *Chromosomes, Human, Pair 17 ; DNA Probes ; Humans ; Leukemia, Promyelocytic, Acute/enzymology/*genetics ; Nucleic Acid Hybridization ; Peroxidase/*genetics ; Translocation, Genetic
    Print ISSN: 0036-8075
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  • 6
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    Chromosome 17 deletions and p53 gene mutations in colorectal carcinomas (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-04-14
    Description: Previous studies have demonstrated that allelic deletions of the short arm of chromosome 17 occur in over 75% of colorectal carcinomas. Twenty chromosome 17p markers were used to localize the common region of deletion in these tumors to a region contained within bands 17p12 to 17p13.3. This region contains the gene for the transformation-associated protein p53. Southern and Northern blot hybridization experiments provided no evidence for gross alterations of the p53 gene or surrounding sequences. As a more rigorous test of the possibility that p53 was a target of the deletions, the p53 coding regions from two tumors were analyzed; these two tumors, like most colorectal carcinomas, had allelic deletions of chromosome 17p and expressed considerable amounts of p53 messenger RNA from the remaining allele. The remaining p53 allele was mutated in both tumors, with an alanine substituted for valine at codon 143 of one tumor and a histidine substituted for arginine at codon 175 of the second tumor. Both mutations occurred in a highly conserved region of the p53 gene that was previously found to be mutated in murine p53 oncogenes. The data suggest that p53 gene mutations may be involved in colorectal neoplasia, perhaps through inactivation of a tumor suppressor function of the wild-type p53 gene.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baker, S J -- Fearon, E R -- Nigro, J M -- Hamilton, S R -- Preisinger, A C -- Jessup, J M -- vanTuinen, P -- Ledbetter, D H -- Barker, D F -- Nakamura, Y -- White, R -- Vogelstein, B -- GM07184/GM/NIGMS NIH HHS/ -- GM07309/GM/NIGMS NIH HHS/ -- HD20619/HD/NICHD NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1989 Apr 14;244(4901):217-21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Oncology Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2649981" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; *Chromosome Deletion ; *Chromosomes, Human, Pair 17/ultrastructure ; Colorectal Neoplasms/*genetics ; Humans ; Mice ; Mice, Nude ; *Mutation ; Neoplasm Proteins/*genetics ; Nucleic Acid Hybridization ; Oncogenes ; Phosphoproteins/*genetics ; Suppression, Genetic ; Tumor Suppressor Protein p53
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  • 7
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    AP1/jun function is differentially induced in promotion-sensitive and resistant JB6 cells (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-05
    Description: Tumor promoters may bring about events that lead to neoplastic transformation by inducing specific promotion-relevant effector genes. Functional activation of the transacting transcription factor AP-1 by the phorbol ester 12-O-tetradecanoylphorbol-13-acetate (TPA) may play an essential role in this process. Clonal genetic variants of mouse epidermal JB6 cells that are genetically susceptible (P+) or resistant (P-) to promotion of transformation by TPA were transfected with 3XTRE-CAT, a construct that has AP-1 cis-enhancer sequences attached to a reporter gene encoding chloramphenicol acetyltransferase (CAT). Transfected JB6 P+, but not P- variants, showed TPA-inducible CAT synthesis. Epidermal growth factor, another transformation promoter in JB6 cells, also caused P+ specific induction of CAT gene expression. These results demonstrate an association between induced AP-1 function and sensitivity to promotion of neoplastic transformation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bernstein, L R -- Colburn, N H -- New York, N.Y. -- Science. 1989 May 5;244(4904):566-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Johns Hopkins University, Department of Biology, Baltimore, MD 21218.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2541502" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; *Cell Transformation, Neoplastic ; Chloramphenicol O-Acetyltransferase/genetics ; Cloning, Molecular ; DNA-Binding Proteins/genetics/*physiology ; Epidermal Growth Factor/pharmacology ; Epidermis ; Gene Expression Regulation ; Genetic Variation ; Kinetics ; Mice ; Nucleic Acid Hybridization ; Plasmids ; Promoter Regions, Genetic ; Proto-Oncogene Proteins ; Proto-Oncogene Proteins c-jun ; Simplexvirus/genetics ; Tetradecanoylphorbol Acetate/*pharmacology ; Transcription Factors/genetics/*physiology ; Transfection
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  • 8
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    Effect of antisense c-raf-1 on tumorigenicity and radiation sensitivity of a human squamous carcinoma (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-03-10
    Description: Antisense RNA-mediated inhibition of gene expression was used to investigate the biological function of the c-raf-1 gene in a radiation-resistant human squamous carcinoma cell line, SQ-20B. S1 nuclease protection assays revealed that transfection of full-length raf complementary DNA in the antisense orientation (AS) leads to a specific reduction (greater than tenfold) of steady-state levels of the endogenous c-raf-1 sense (S) transcript in SQ-20B cells. In nude mice, the malignant potential of SQ-20B cells transfected with raf (S) was significantly increased relative to that of SQ-20B cells transfected with raf (AS). SQ-20B cells containing transfected raf (S) maintained a radiation-resistant phenotype as compared to those cells harboring the AS version, which appeared to have enhanced radiation sensitivity. These data indicate that the reduced expression of endogenous c-raf-1 is sufficient to modulate the tumorigenicity and the radiation-resistant phenotype of SQ-20B cells, thus implicating c-raf-1 in a pathway important to the genesis of this type of cancer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kasid, U -- Pfeifer, A -- Brennan, T -- Beckett, M -- Weichselbaum, R R -- Dritschilo, A -- Mark, G E -- New York, N.Y. -- Science. 1989 Mar 10;243(4896):1354-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Radiation Medicine, Vincent T. Lombardi Comprehensive Cancer Research Center, Georgetown University Medical Center, Washington 20007.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2466340" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blotting, Southern ; Carcinoma, Squamous Cell/*genetics ; Cell Line ; Cell Survival/*radiation effects ; Clone Cells ; Dose-Response Relationship, Radiation ; *Gene Expression Regulation ; Humans ; Kinetics ; Mice ; Mice, Nude ; Neoplasm Transplantation ; Nucleic Acid Hybridization ; *Proto-Oncogenes ; RNA/*genetics ; RNA, Antisense ; RNA, Messenger/*antagonists & inhibitors ; Transcription, Genetic ; Transfection ; Transplantation, Heterologous ; Tumor Cells, Cultured/*radiation effects
    Print ISSN: 0036-8075
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  • 9
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    Adenylyl cyclase amino acid sequence: possible channel- or transporter-like structure (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-30
    Description: Complementary DNA's that encode an adenylyl cyclase were isolated from a bovine brain library. Most of the deduced amino acid sequence of 1134 residues is divisible into two alternating sets of hydrophobic and hydrophilic domains. Each of the two large hydrophobic domains appears to contain six transmembrane spans. Each of the two large hydrophilic domains contains a sequence that is homologous to a single cytoplasmic domain of several guanylyl cyclases; these sequences may represent nucleotide binding sites. An unexpected topographical resemblance between adenylyl cyclase and various plasma membrane channels and transporters was observed. This structural complexity suggests possible, unappreciated functions for this important enzyme.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Krupinski, J -- Coussen, F -- Bakalyar, H A -- Tang, W J -- Feinstein, P G -- Orth, K -- Slaughter, C -- Reed, R R -- Gilman, A G -- CA16519/CA/NCI NIH HHS/ -- GM12230/GM/NIGMS NIH HHS/ -- GM34497/GM/NIGMS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1989 Jun 30;244(4912):1558-64.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas 75235.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2472670" target="_blank"〉PubMed〈/a〉
    Keywords: *Adenylyl Cyclases/genetics/isolation & purification ; Amino Acid Sequence ; Animals ; Base Sequence ; Brain/enzymology ; *Carrier Proteins ; Cattle ; Cell Line ; Cloning, Molecular ; DNA/genetics ; Electrophoresis, Polyacrylamide Gel ; *Ion Channels ; Membrane Proteins ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Protein Conformation ; Transfection
    Print ISSN: 0036-8075
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  • 10
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    Reverse transcriptase in a clinical strain of Escherichia coli: production of branched RNA-linked msDNA (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-02-24
    Description: Branched RNA-linked multicopy single-stranded DNA (msDNA) originally detected in myxobacteria has now been found in a clinical isolate of Escherichia coli. Although lacking homology in the primary structure, the E. coli msDNA is similar in secondary structure to the myxobacterial msDNA's, including the 2',5'-phosphodiester linkage between RNA and DNA. A chromosomal DNA fragment responsible for the production of msDNA was cloned in an E. coli K12 strain; its DNA sequence revealed an open reading frame (ORF) of 586 amino acid residues. The ORF shows sequence similarity with retroviral reverse transcriptases and ribonuclease H. Disruption of the ORF blocked msDNA production, indicating that this gene is essential for msDNA synthesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lampson, B C -- Sun, J -- Hsu, M Y -- Vallejo-Ramirez, J -- Inouye, S -- Inouye, M -- F32 GM11970-01A1/GM/NIGMS NIH HHS/ -- GM26843/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Feb 24;243(4894 Pt 1):1033-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Robert Wood Johnson Medical School, University of Medicine and Dentistry of New Jersey, Piscataway 08854.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2466332" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Cloning, Molecular ; DNA Probes ; DNA Restriction Enzymes ; DNA, Bacterial/genetics ; DNA, Single-Stranded/analysis/biosynthesis/*genetics ; Endoribonucleases/genetics ; Escherichia coli/enzymology/*genetics ; Genes, Bacterial ; HIV/enzymology/genetics ; Human T-lymphotropic virus 1/enzymology/genetics ; Molecular Sequence Data ; Myxococcales/genetics ; Nucleic Acid Hybridization ; RNA, Bacterial/analysis/biosynthesis/*genetics ; RNA-Directed DNA Polymerase/*genetics ; Retroviridae/*enzymology/genetics ; Ribonuclease H ; Sequence Homology, Nucleic Acid ; Transformation, Bacterial
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  • 11
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    Identification of the molecular defect in a family with spondyloepiphyseal dysplasia (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-26
    Description: Spondyloepiphyseal dysplasias (SED) are a heterogeneous group of inherited disorders characterized by disproportionate short stature and pleiotropic involvement of the skeletal and ocular systems. Evidence has suggested that SED may result from structural defects in type II collagen. To confirm the validity of this hypothesis, the structure of the "candidate" type II collagen gene (COL2A1) has been directly examined in a relatively large SED family. Coarse scanning of the gene by Southern blot hybridization identified an abnormal restriction pattern in one of the affected members of the kindred. Analysis of selected genomic fragments, amplified by the polymerase chain reaction, precisely localized the molecular defect and demonstrated that all affected family members carried the same heterozygous single-exon deletion. As a consequence of the mutation, nearly 90 percent of the assembled type II collagen homotrimers are expected to contain one or more procollagen subunits harboring an interstitial deletion of 36 amino acids in the triple helical domain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, B -- Vissing, H -- Ramirez, F -- Rogers, D -- Rimoin, D -- AR-38648/AR/NIAMS NIH HHS/ -- HD-22657/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1989 May 26;244(4907):978-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, State University of New York Health Science Center, Brooklyn 11203.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2543071" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Child, Preschool ; Chromosome Deletion ; Collagen/*genetics ; DNA Restriction Enzymes ; DNA-Directed DNA Polymerase ; Exons ; Female ; Gene Amplification ; Humans ; Macromolecular Substances ; Male ; Molecular Sequence Data ; Mutation ; Nucleic Acid Hybridization ; Osteochondrodysplasias/*genetics ; Pedigree ; Procollagen/genetics
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  • 12
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    Isolation of human transcribed sequences from human-rodent somatic cell hybrids (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-10
    Description: A method was developed for selectively isolating genes from localized regions of the human genome that are contained in interspecific hybrid cells. Complementary human DNA was prepared from a human-rodent somatic cell hybrid that contained less than 1% human DNA, by using consensus 5' intron splice sequences as primers. These primers would select immature, unspliced messenger RNA (still retaining species-specific repeat sequences) as templates. Screening a derived complementary DNA library for human repeat sequences resulted in the isolation of human clones at the anticipated frequency with characteristics expected of exons of transcribed human genes--single copy sequences that hybridized to discrete bands on Northern (RNA) blots.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, P -- Legerski, R -- Siciliano, M J -- GM19436/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Nov 10;246(4931):813-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics, University of Texas, M.D. Anderson Cancer Center, Houston 77030.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2479099" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blotting, Northern ; Blotting, Southern ; Chromosome Mapping ; Chromosomes, Human, Pair 19 ; Cloning, Molecular ; Cricetinae ; DNA/biosynthesis/genetics/*isolation & purification ; Humans ; *Hybrid Cells ; Introns ; Nucleic Acid Hybridization ; RNA/genetics ; Repetitive Sequences, Nucleic Acid ; Restriction Mapping ; Templates, Genetic
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  • 13
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    Specific block of calcium channel expression by a fragment of dihydropyridine receptor cDNA (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-02-03
    Description: Although the structure of rabbit skeletal muscle dihydropyridine (DHP) receptor, deduced from cDNA sequence, indicates that this protein is the channel-forming subunit of voltage-dependent calcium channel (VDCC), no functional proof for this prediction has been presented. Two DNA oligonucleotides complementary to DHP-receptor RNA sequences coding for putative membrane-spanning regions of the DHP receptor specifically suppress the expression of the DHP-sensitive VDCC from rabbit and rat heart in Xenopus oocytes. However, these oligonucleotides do not suppress the expression of the DHP-insensitive VDCC and of voltage-dependent sodium and potassium channels. Thus, the gene for DHP receptor of rabbit skeletal muscle is closely related, or identical to, a gene expressed in heart that encodes a component of the DHP-sensitive VDCC. The DHP-sensitive and DHP-insensitive VDCCs are distinct molecular entities.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lotan, I -- Goelet, P -- Gigi, A -- Dascal, N -- New York, N.Y. -- Science. 1989 Feb 3;243(4891):666-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Physiology and Pharmacology, Sackler School of Medicine, Tel Aviv University, Ramat Aviv, Israel.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2464853" target="_blank"〉PubMed〈/a〉
    Keywords: 3-Pyridinecarboxylic acid, ; 1,4-dihydro-2,6-dimethyl-5-nitro-4-(2-(trifluoromethyl)phenyl)-, Methyl ; ester/pharmacology ; Animals ; Calcium Channels/drug effects/*physiology ; DNA/*genetics ; DNA Probes ; Electric Conductivity ; *Gene Expression Regulation ; Muscles/analysis ; Myocardium/analysis ; Nucleic Acid Hybridization ; Oocytes/physiology ; RNA/genetics ; RNA, Messenger/genetics ; Rabbits ; Rats ; Receptors, Nicotinic/*genetics ; Xenopus
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 14
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    Cloning and sequencing of porcine LH-hCG receptor cDNA: variants lacking transmembrane domain (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-08-04
    Description: Complementary DNA clones, encoding the LH-hCG (luteinizing hormone-human choriogonadotropic hormone) receptor were isolated by screening a lambda gt11 library with monoclonal antibodies. The primary structure of the protein was deduced from the DNA sequence analysis; the protein contains 696 amino acids with a putative signal peptide of 27 amino acids. Hydropathy analysis suggests the existence of seven transmembrane domains that show homology with the corresponding regions of other G protein-coupled receptors. Three other types of clones corresponding to shorter proteins were observed, in which the putative transmembrane domain was absent. These probably arose through alternative splicing. RNA blot analysis showed similar patterns in testis and ovary with a major RNA of 4700 nucleotides and several minor species. The messenger RNA was expressed in COS-7 cells, yielding a protein that bound hCG with the same affinity as the testicular receptor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Loosfelt, H -- Misrahi, M -- Atger, M -- Salesse, R -- Vu Hai-Luu Thi, M T -- Jolivet, A -- Guiochon-Mantel, A -- Sar, S -- Jallal, B -- Garnier, J -- New York, N.Y. -- Science. 1989 Aug 4;245(4917):525-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut National de la Sante et de la Recherche Medicale Unite 135, Hopital de Bicetre, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2502844" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cell Membrane/*metabolism ; *Cloning, Molecular ; DNA/*genetics ; Female ; GTP-Binding Proteins/metabolism ; Male ; Molecular Sequence Data ; Mutation ; Nucleic Acid Hybridization ; Ovary/analysis ; Protein Sorting Signals/genetics ; RNA, Messenger/analysis/genetics ; Receptors, LH/*genetics/metabolism ; Sequence Homology, Nucleic Acid ; Swine ; Testis/analysis ; Tissue Distribution
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  • 15
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    Human KGF is FGF-related with properties of a paracrine effector of epithelial cell growth (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-08-18
    Description: Keratinocyte growth factor (KGF) is a human mitogen that is specific for epithelial cells. The complementary DNA sequence of KGF demonstrates that it is a member of the fibroblast growth factor family. The KGF transcript was present in stromal cells derived from epithelial tissues. By comparison with the expression of other epithelial cell mitogens, only KGF, among known human growth factors, has the properties of a stromal mediator of epithelial cell proliferation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Finch, P W -- Rubin, J S -- Miki, T -- Ron, D -- Aaronson, S A -- New York, N.Y. -- Science. 1989 Aug 18;245(4919):752-5.〈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/2475908" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cell Division ; Codon ; DNA/genetics/isolation & purification ; Epithelial Cells ; Epithelium/analysis/metabolism ; Fibroblast Growth Factor 10 ; Fibroblast Growth Factor 7 ; *Fibroblast Growth Factors/genetics ; Fibroblasts/metabolism ; Gene Expression Regulation ; Growth Substances/*genetics/physiology ; Humans ; Mesoderm/metabolism ; Mice ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Oligonucleotide Probes ; RNA/analysis ; Sequence Homology, Nucleic Acid ; Skin/analysis ; Tissue Distribution ; Transcription, Genetic
    Print ISSN: 0036-8075
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  • 16
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    A new DNA marker tightly linked to the fragile X locus (FRAXA) (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-12-08
    Description: The fragile X syndrome is the most common cause of familial mental retardation. Genetic counseling and gene isolation are hampered by a lack of DNA markers close to the disease locus. Two somatic cell hybrids that each contain a human X chromosome with a breakpoint close to the fragile X locus have been characterized. A new DNA marker (DXS296) lies between the chromosome breakpoints and is the closest marker to the fragile X locus yet reported. The Hunter syndrome gene, which causes iduronate sulfatase deficiency, is located at the X chromosome breakpoint that is distal to this new marker, thus localizing the Hunter gene distal to the fragile X locus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Suthers, G K -- Callen, D F -- Hyland, V J -- Kozman, H M -- Baker, E -- Eyre, H -- Harper, P S -- Roberts, S H -- Hors-Cayla, M C -- Davies, K E -- New York, N.Y. -- Science. 1989 Dec 8;246(4935):1298-300.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Histopathology, Adelaide Children's Hospital, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2573953" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromosome Mapping ; Female ; Fragile X Syndrome/*genetics ; Genetic Counseling ; *Genetic Linkage ; *Genetic Markers ; Genomic Library ; Humans ; Hybrid Cells ; Likelihood Functions ; Mice ; Mucopolysaccharidosis II/genetics ; Mutation ; Nucleic Acid Hybridization ; Polymorphism, Restriction Fragment Length ; Sex Chromosome Aberrations/*genetics ; Translocation, Genetic
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 17
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    Mutations in a protein kinase C homolog confer phorbol ester resistance on Caenorhabditis elegans (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-03-31
    Description: The tpa-1 gene mediates the action of tumor-promoting phorbol esters in the nematode Caenorhabditis elegans. A genomic fragment that constitutes a portion of the tpa-1 gene was cloned by Tc1 transposon tagging and was used as a probe to screen a nematode complementary DNA library. One of the isolated complementary DNA clones had a nucleotide sequence that predicts a polypeptide of 526 amino acids. The predicted amino acid sequence revealed that the predicted tpa-1 protein sequence is highly similar to protein kinase C molecules from various animals, including man.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tabuse, Y -- Nishiwaki, K -- Miwa, J -- New York, N.Y. -- Science. 1989 Mar 31;243(4899):1713-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Fundamental Research Laboratories, NEC Corporation, Kawasaki, Kanagawa, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2538925" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Caenorhabditis/*drug effects/genetics ; Cloning, Molecular ; Codon ; DNA/genetics ; DNA Restriction Enzymes ; Drug Resistance/genetics ; Genetic Markers ; Molecular Sequence Data ; Mutation ; Nucleic Acid Hybridization ; Phenotype ; Phorbol Esters/*pharmacology ; Protein Kinase C/*genetics ; Sequence Homology, Nucleic Acid
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 18
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    A protein that binds to a cis-acting element of wheat histone genes has a leucine zipper motif (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-01
    Description: The structure and function of transcription factors of higher plants was studied by isolating cDNA clones encoding a wheat sequence-specific DNA binding protein. A hexameric nucleotide motif, ACGTCA, is located upstream from the TATA box of several plant histone genes. It has been suggested that this motif is essential for efficient transcription of the wheat histone H3 gene. A wheat nuclear protein, HBP-1 (histone DNA binding protein-1), which specifically binds to the hexameric motif, has previously been identified as a putative transcription factor. A cDNA clone encoding HBP-1 has been isolated on the basis of specific binding of HBP-1 to the hexameric motif. The deduced amino acid sequence indicates that HBP-1 contains the leucine zipper motif, which represents a characteristic property of several eukaryotic transcription factors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tabata, T -- Takase, H -- Takayama, S -- Mikami, K -- Nakatsuka, A -- Kawata, T -- Nakayama, T -- Iwabuchi, M -- New York, N.Y. -- Science. 1989 Sep 1;245(4921):965-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Botany, Faculty of Science, Kyoto University, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2772648" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Cloning, Molecular ; DNA/genetics ; DNA-Binding Proteins/*genetics ; *Genes ; Genes, Regulator ; Histones/*genetics ; Information Systems ; *Leucine ; Methylation ; Molecular Sequence Data ; Nuclear Proteins/*genetics ; Nucleic Acid Hybridization ; Plants/*genetics ; *Transcription, Genetic ; Triticum/genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 19
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    Metastatic hibernomas in transgenic mice expressing an alpha-amylase-SV40 T antigen hybrid gene (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-04-28
    Description: Mice transgenic for a hybrid gene containing the liver promoter of the mouse amylase gene (Amy-1a) fused to the SV40 tumor antigen coding region unexpected developed malignant brown adipose tissue tumors (malignant hibernomas). Expression of the alpha-amylase gene had previously been thought to be confined to the liver parotid, and pancreas; however, analysis of white and brown adipose tissue from nontransgenic mice revealed expression of the endogenous Amy-1a gene in these tissues. Gene constructs driven by the Amy-1a liver promoter thus provide a means of targeting gene expression to the adipocyte cell lineage in transgenic mice. Moreover the high frequency of metastases in the liver, lungs, spleen, heart, and adrenals of these mice provides an experimental system in which to study the development of disseminated malignancy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fox, N -- Crooke, R -- Hwang, L H -- Schibler, U -- Knowles, B B -- Solter, D -- CA-10815/CA/NCI NIH HHS/ -- CA-18470/CA/NCI NIH HHS/ -- CA-21124/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1989 Apr 28;244(4903):460-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wistar Institute, Philadelphia, PA 19104.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2785714" target="_blank"〉PubMed〈/a〉
    Keywords: Adipose Tissue/metabolism/pathology ; *Adipose Tissue, Brown/metabolism/pathology ; Animals ; Antigens, Polyomavirus Transforming/*genetics ; Cloning, Molecular ; Gene Expression Regulation ; Liver/metabolism ; Mice ; Mice, Transgenic ; Neoplasm Metastasis ; Neoplasms, Experimental/*genetics/pathology ; Nucleic Acid Hybridization ; Promoter Regions, Genetic ; RNA, Messenger/metabolism ; Tissue Distribution ; Transcription, Genetic ; alpha-Amylases/*genetics
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  • 20
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    Amplification and molecular cloning of HTLV-I sequences from DNA of multiple sclerosis patients (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-27
    Description: Techniques of gene amplification, molecular cloning, and sequence analysis were used to test for the presence of sequences related to human T-lymphotropic virus type I (HTLV-I) in peripheral blood mononuclear cells of six patients with multiple sclerosis (MS) and 20 normal individuals. HTLV-I sequences were detected in all six MS patients and in one individual from the control group by DNA blot analysis and molecular cloning of amplified DNAs. The viral sequence in MS patients were associated with adherent cell populations consisting predominantly of monocytes and macrophages. Molecular cloning and nucleotide sequence analysis indicated that these amplified viral sequences were related to the HTLV-I proviral genome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reddy, E P -- Sandberg-Wollheim, M -- Mettus, R V -- Ray, P E -- DeFreitas, E -- Koprowski, H -- CA-10815/CA/NCI NIH HHS/ -- NS-11036/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1989 Jan 27;243(4890):529-33.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wistar Institute of Anatomy and Biology, Philadelphia, PA 19104.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2536193" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Base Sequence ; Child ; *Cloning, Molecular ; DNA Restriction Enzymes ; DNA, Viral/*genetics ; Female ; *Gene Amplification ; Human T-lymphotropic virus 1/*genetics ; Humans ; Leukocytes, Mononuclear/analysis/microbiology ; Macrophages/analysis/microbiology ; Male ; Molecular Sequence Data ; Multiple Sclerosis/*microbiology ; Nucleic Acid Hybridization ; Oligonucleotide Probes
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  • 21
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    Introduction of human DNA into mouse eggs by injection of dissected chromosome fragments (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-07-14
    Description: A procedure has been developed for introducing exogenous DNA into mouse eggs by injection of chromosome fragments. Chromosome fragments were dissected from human metaphase spreads and microinjected into the pronuclei of fertilized mouse eggs. Many of the injected eggs subsequently exhibited normal pre- and postimplantation development. Embryos obtained from eggs injected with centromeric fragments retained human centromeric DNA as demonstrated by in situ hybridization analysis. From eggs injected with noncentromeric fragments, a mouse was obtained whose tail tissue exhibited the presence of human DNA. This procedure should facilitate incorporation of very large (more than 10 megabases) DNA fragments into cells and embryos without the need for cloned sequences.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Richa, J -- Lo, C W -- New York, N.Y. -- Science. 1989 Jul 14;245(4914):175-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biology Department, University of Pennsylvania, Philadelphia 19104.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2749254" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blastocyst ; Cell Line ; Centromere ; *Chromosomes, Human ; DNA/*genetics ; Humans ; Metaphase ; Mice ; *Mice, Transgenic ; Microinjections ; Nucleic Acid Hybridization ; Ovum ; *Transfection
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  • 22
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    Genome mapping goal now in reach (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-04-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roberts, L -- New York, N.Y. -- Science. 1989 Apr 28;244(4903):424-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2717935" target="_blank"〉PubMed〈/a〉
    Keywords: *Base Sequence ; *Chromosome Mapping ; *Chromosomes, Human ; DNA/radiation effects ; DNA Probes ; Fluorescent Dyes ; Humans ; Nucleic Acid Hybridization
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  • 23
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    Identification of the cystic fibrosis gene: chromosome walking and jumping (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-08
    Description: An understanding of the basic defect in the inherited disorder cystic fibrosis requires cloning of the cystic fibrosis gene and definition of its protein product. In the absence of direct functional information, chromosomal map position is a guide for locating the gene. Chromosome walking and jumping and complementary DNA hybridization were used to isolate DNA sequences, encompassing more than 500,000 base pairs, from the cystic fibrosis region on the long arm of human chromosome 7. Several transcribed sequences and conserved segments were identified in this cloned region. One of these corresponds to the cystic fibrosis gene and spans approximately 250,000 base pairs of genomic DNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rommens, J M -- Iannuzzi, M C -- Kerem, B -- Drumm, M L -- Melmer, G -- Dean, M -- Rozmahel, R -- Cole, J L -- Kennedy, D -- Hidaka, N -- DK34944/DK/NIDDK NIH HHS/ -- DK39690/DK/NIDDK NIH HHS/ -- N01-CO-74102/CO/NCI NIH HHS/ -- New York, N.Y. -- Science. 1989 Sep 8;245(4922):1059-65.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Hospital for Sick Children, Toronto, Ontario, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2772657" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cattle ; Chickens ; *Chromosome Mapping ; *Chromosomes, Human, Pair 7 ; Cloning, Molecular/methods ; Cricetinae ; Cystic Fibrosis/*genetics ; DNA Probes ; Genes, Overlapping ; *Genes, Recessive ; Genetic Markers ; Humans ; Mice ; Nucleic Acid Hybridization ; Restriction Mapping/methods
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  • 24
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    Interleukin-2 receptor beta chain gene: generation of three receptor forms by cloned human alpha and beta chain cDNA's (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-05
    Description: Interleukin-2 (IL-2) binds to two distinct receptor molecules, the IL-2 receptor alpha (IL-2R alpha, p55) chain and the newly identified IL-2 receptor beta (IL-2R beta, p70-75) chain. The cDNA encoding the human IL-2R beta chain has now been isolated. The overall primary structure of the IL-2R beta chain shows no apparent homology to other known receptors. Unlike the IL-2R alpha chain, the IL-2R beta chain has a large cytoplasmic region in which a functional domain (or domains) mediating an intracellular signal transduction pathway (or pathways) may be embodied. The cDNA-encoded beta chain binds and internalizes IL-2 when expressed on T lymphoid cells but not fibroblast cells. Furthermore, the cDNA gives rise to the generation of high-affinity IL-2 receptor when co-expressed with the IL-2R alpha chain cDNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hatakeyama, M -- Tsudo, M -- Minamoto, S -- Kono, T -- Doi, T -- Miyata, T -- Miyasaka, M -- Taniguchi, T -- New York, N.Y. -- Science. 1989 May 5;244(4904):551-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Molecular and Cellular Biology, Osaka University, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2785715" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; *Cloning, Molecular ; Cross-Linking Reagents ; DNA/*genetics/isolation & purification ; Fibroblasts/metabolism ; Gene Expression Regulation ; Humans ; Interleukin-2/metabolism ; Leukemia ; Molecular Sequence Data ; Nucleic Acid Hybridization ; RNA, Messenger/genetics ; Receptors, Interleukin-2/*genetics/metabolism ; Recombinant Proteins ; Sequence Homology, Nucleic Acid ; Signal Transduction ; Succinimides ; T-Lymphocytes/metabolism ; Transfection ; Tumor Cells, Cultured
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  • 25
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    Identification of a thyroid hormone receptor that is pituitary-specific (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-04-07
    Description: Three cellular homologs of the v-erbA oncogene were previously identified in the rat; two of them encode high affinity receptors for the thyroid hormone triiodothyronine (T3). A rat complementary DNA clone encoding a T3 receptor form of the ErbA protein, called r-ErbA beta-2, was isolated. The r-ErbA beta-2 protein differs at its amino terminus from the previously described rat protein encoded by c-erbA beta and referred to as r-ErbA beta-1. Unlike the other members of the c-erbA proto-oncogene family, which have a wide tissue distribution, r-erbA beta-2 appears to be expressed only in the anterior pituitary gland. In addition, thyroid hormone downregulates r-erbA beta-2 messenger RNA but not r-erbA beta-1 messenger RNA in a pituitary tumor-derived cell line. The presence of a pituitary-specific form of the thyroid hormone receptor that may be selectively regulated by thyroid hormone could be important for the differential regulation of gene expression by T3 in the pituitary gland.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hodin, R A -- Lazar, M A -- Wintman, B I -- Darling, D S -- Koenig, R J -- Larsen, P R -- Moore, D D -- Chin, W W -- New York, N.Y. -- Science. 1989 Apr 7;244(4900):76-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Brigham and Women's Hospital, Boston, MA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2539642" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cell Line ; Cloning, Molecular ; DNA/isolation & purification ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Organ Specificity ; Pituitary Gland, Anterior/*metabolism ; Proto-Oncogene Proteins/genetics/*isolation & purification ; Rats ; Receptors, Thyroid Hormone/genetics/*isolation & purification ; Transfection
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 26
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    Lutropin-choriogonadotropin receptor: an unusual member of the G protein-coupled receptor family (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-08-04
    Description: A complementary DNA (cDNA) for the rat luteal lutropin-choriogonadotropin receptor (LH-CG-R) was isolated with the use of a DNA probe generated in a polymerase chain reaction with oligonucleotide primers based on peptide sequences of purified receptor protein. As would be predicted from the cDNA sequence, the LH-CG-R consists of a 26-residue signal peptide, a 341-residue extracellular domain displaying an internal repeat structure characteristic of members of the leucine-rich glycoprotein (LRG) family, and a 333-residue region containing seven transmembrane segments. This membrane-spanning region displays sequence similarity with all members of the G protein-coupled receptor family. Hence, the LH-CG-R gene may have evolved by recombination of LRG and G protein-coupled receptor genes. Cells engineered to express LH-CG-R cDNA bind human choriogonadotropin with high affinity and show an increase in cyclic adenosine monophosphate when exposed to hormone. As revealed by RNA blot analysis and in situ hybridization, the 4.4-kilobase cognate messenger RNA is prominently localized in the rat ovary.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McFarland, K C -- Sprengel, R -- Phillips, H S -- Kohler, M -- Rosemblit, N -- Nikolics, K -- Segaloff, D L -- Seeburg, P H -- HD22196/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1989 Aug 4;245(4917):494-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Developmental Biology, Genetech, Inc., South San Francisco, CA 94080.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2502842" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cloning, Molecular ; DNA/genetics/isolation & purification ; DNA Probes ; Female ; GTP-Binding Proteins/*physiology ; Glycoproteins/genetics ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Ovary/analysis ; RNA, Messenger/analysis/genetics ; Rats ; Receptors, LH/*genetics ; Sequence Homology, Nucleic Acid ; Tissue Distribution
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  • 27
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    Neural cadherin: role in selective cell-cell adhesion (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-08-11
    Description: Cadherins are a family of Ca2+-dependent intercellular adhesion molecules. Complementary DNAs encoding mouse neural cadherin (N-cadherin) were cloned, and the cell binding specificity of this molecule was examined. Mouse N-cadherin shows 92 percent similarity in amino acid sequence to the chicken homolog, while it shows 49 percent and 43 percent similarity to epithelial cadherin and to placental cadherin of the same species, respectively. In cell binding assays, mouse N-cadherin did not cross-react with other mouse cadherins, but it did cross-react with chicken N-cadherin. The results indicate that each cadherin type confers distinct adhesive specificities on different cells, and also that the specificity of N-cadherin is conserved between mammalian and avian cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miyatani, S -- Shimamura, K -- Hatta, M -- Nagafuchi, A -- Nose, A -- Matsunaga, M -- Hatta, K -- Takeichi, M -- New York, N.Y. -- Science. 1989 Aug 11;245(4918):631-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biophysics, Faculty of Science, Kyoto University, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2762814" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibodies, Monoclonal ; Antigens, Surface/genetics/*physiology ; Base Sequence ; Brain Chemistry ; *Cell Adhesion ; Cell Adhesion Molecules ; Chickens ; Cloning, Molecular ; DNA/genetics ; Embryo, Mammalian ; Embryo, Nonmammalian ; L Cells (Cell Line) ; Mice ; Molecular Sequence Data ; Nerve Tissue/*analysis ; Nucleic Acid Hybridization ; Tissue Distribution ; Transfection
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  • 28
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    Chromosome mapping and expression of a putative testis-determining gene in mouse (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-06
    Description: Isolation and mapping of a mouse complementary DNA sequence (mouse Y-finger) encoding a multiple, potential zinc-binding, finger protein homologous to the candidate human testis-determining factor gene is reported. Four similar sequences were identified in Hind III-digested mouse genomic DNA. Two (7.2 and 2.0 kb) were mapped to the Y chromosome. Only the 2.0-kb fragment, however, was correlated with testis determination. Polymerase chain reaction analysis suggests both Y loci are transcribed in adult testes. A 3.6-kb fragment was mapped to the X chromosome between the T16H and T6R1 translocation breakpoints, and a fourth (6.0 kb) was mapped to chromosome 10. Hence, mYfin sequences have been duplicated several times in the mouse, although they are not duplicated in humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nagamine, C M -- Chan, K M -- Kozak, C A -- Lau, Y F -- N01-CB-25584/CB/NCI NIH HHS/ -- New York, N.Y. -- Science. 1989 Jan 6;243(4887):80-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, University of California, San Francisco 94143.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2563174" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Chromosome Mapping ; DNA-Binding Proteins/genetics ; *Genes ; Male ; Metalloproteins/genetics ; Mice ; Nucleic Acid Hybridization ; Polymorphism, Restriction Fragment Length ; *Sex Determination Analysis ; Testis/*anatomy & histology ; *Transcription, Genetic ; X Chromosome ; Y Chromosome
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  • 29
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    Molecular genetics of human blue cone monochromacy (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-08-25
    Description: Blue cone monochromacy is a rare X-linked disorder of color vision characterized by the absence of both red and green cone sensitivities. In 12 of 12 families carrying this trait, alterations are observed in the red and green visual pigment gene cluster. The alterations fall into two classes. One class arose from the wild type by a two-step pathway consisting of unequal homologous recombination and point mutation. The second class arose by nonhomologous deletion of genomic DNA adjacent to the red and green pigment gene cluster. These deletions define a 579-base pair region that is located 4 kilobases upstream of the red pigment gene and 43 kilobases upstream of the nearest green pigment gene; this 579-base pair region is essential for the activity of both pigment genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nathans, J -- Davenport, C M -- Maumenee, I H -- Lewis, R A -- Hejtmancik, J F -- Litt, M -- Lovrien, E -- Weleber, R -- Bachynski, B -- Zwas, F -- New York, N.Y. -- Science. 1989 Aug 25;245(4920):831-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology and Genetics, Wilmer Ophthalmologic Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21205.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2788922" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Base Sequence ; Child ; Child, Preschool ; Chromosome Deletion ; Color Vision Defects/*genetics ; DNA/analysis ; Female ; Humans ; Male ; Molecular Sequence Data ; Mutation ; Nucleic Acid Hybridization ; Retinal Pigments/genetics ; Thalassemia/genetics ; X Chromosome
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  • 30
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    Transfer RNA genes: landmarks for integration of mobile genetic elements in Dictyostelium discoideum (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-23
    Description: In prokaryotes and eukaryotes mobile genetic elements frequently disrupt the highly conservative structures of chromosomes, which are responsible for storage of genetic information. The factors determining the site for integration of such elements are still unknown. Transfer RNA (tRNA) genes are associated in a highly significant manner with different putative mobile genetic elements in the cellular slime mold Dictyostelium discoideum. These results suggest that tRNA genes in D. discoideum, and probably tRNA genes generally in lower eukaryotes, may function as genomic landmarks for the integration of different transposable elements in a strictly position-specific manner.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marschalek, R -- Brechner, T -- Amon-Bohm, E -- Dingermann, T -- New York, N.Y. -- Science. 1989 Jun 23;244(4911):1493-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut fur Biochemie der Medizinischen Fakultat, Universitat Erlangen-Nurnberg, Federal Republic of Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2567533" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Chromosome Mapping ; Dictyostelium/*genetics ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Oligonucleotide Probes ; Polymorphism, Restriction Fragment Length ; RNA, Transfer/*genetics ; RNA, Transfer, Glu/genetics ; RNA, Transfer, Lys/genetics ; RNA, Transfer, Val/genetics
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    Chromosomal rearrangement generating a composite gene for a developmental transcription factor (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-27
    Description: Differential gene expression in the mother cell chamber of sporulating cells of Bacillus subtilis is determined in part by an RNA polymerase sigma factor called sigma K (or sigma 27). The sigma K factor was assigned as the product of the sporulation gene spoIVCB on the basis of the partial aminoterminal amino acid sequence of the purified protein. The spoIVCB gene is now shown to be a truncated gene capable of specifying only the amino terminal half of sigma K. The carboxyl terminal half is specified by another sporulation gene, spoIIIC, to which spoIVCB becomes joined inframe at an intermediate stage of sporulation by site-specific recombination within a 5-base pair repeated sequence. Juxtaposition of spoIVCB and spoIIIC need not be reversible in that the mother cell and its chromosome are discarded at the end of the developmental cycle. The rearrangement of chromosomal DNA could account for the presence of sigma K selectively in the mother cell and may be a precedent for the generation of cell type-specific regulatory proteins in other developmental systems where cells undergo terminal differentiation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stragier, P -- Kunkel, B -- Kroos, L -- Losick, R -- New York, N.Y. -- Science. 1989 Jan 27;243(4890):507-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cellular and Developmental Biology, Harvard University, Cambridge, MA 02138.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2536191" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Bacillus subtilis/*genetics/physiology ; Base Sequence ; Cloning, Molecular ; DNA Probes ; DNA Restriction Enzymes ; DNA, Bacterial/genetics ; DNA-Directed RNA Polymerases/metabolism ; *Gene Expression Regulation ; *Gene Rearrangement ; *Genes, Bacterial ; Molecular Sequence Data ; Molecular Weight ; Mutation ; Nucleic Acid Hybridization ; Sigma Factor/genetics ; Spores, Bacterial ; Transcription Factors/*genetics
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  • 32
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    T cell receptor gene trans-rearrangements: chimeric gamma-delta genes in normal lymphoid tissues (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-15
    Description: Joining of V-, D-, and J-region gene segments during DNA rearrangements within all antigen receptor genes involves recognition of the same highly conserved heptamernonamer sequences flanking each segment. In order to investigate the possibility that recognition of these conserved sequences may sometimes permit intergenic joining of segments among different antigen receptor genes, DNA of normal human lymphoid tissues was examined by polymerase chain reaction amplification for the presence of chimeric gamma-delta T cell receptor gene rearrangements. These studies detected V gamma-(D delta)-J delta and V delta-(D delta)-J gamma rearrangements in thymus, peripheral blood, and tonsil. Analysis of thymus RNA indicated that many of these rearrangements are expressed as V gamma-(D delta)-J delta-C delta and V delta-(D delta)-J gamma-C gamma transcripts. Most transcripts (19 of 20 complementary DNA clones studied) are appropriately spliced and show correct open translational reading frames across the V-(D)-J junctions. Thus, chimeric antigen receptor genes are generated in a subset of normal lymphoid cells, probably as a result of chromosomal translocations, and such genes may possibly contribute to increased diversity within the antigen receptor repertoire.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tycko, B -- Palmer, J D -- Sklar, J -- CA38621/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1989 Sep 15;245(4923):1242-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Stanford University, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2551037" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Blotting, Southern ; Cell Line ; Chimera ; DNA/genetics ; DNA Probes ; Gene Amplification ; *Gene Rearrangement, T-Lymphocyte ; *Gene Rearrangement, gamma-Chain T-Cell Antigen Receptor ; Humans ; *Lymphoid Tissue ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Receptors, Antigen, T-Cell/*genetics ; Sequence Homology, Nucleic Acid ; Thymus Gland
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  • 33
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    Dynamic expression pattern of the myc protooncogene in midgestation mouse embryos (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-01-13
    Description: The c-myc protooncogene in mouse embryos was shown by RNA in situ hybridization to be preferentially expressed in tissues of endodermal and mesodermal origin. Most organs developing from the ectoderm, such as skin, brain, and spinal cord, displayed low levels of c-myc RNA. The thymus represented the only hematopoietic organ with high c-myc expression. In organs and structures strongly hybridizing to c-myc probes, for example the fetal part of the placenta, gut, liver, kidney, pancreas, submandibular glands, enamel organs of the molars, and skeletal cartilage, the level of expression depended on the stage of development. Expression was observed to be correlated with proliferation, particularly during expansion and folding of partially differentiated epithelial cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schmid, P -- Schulz, W A -- Hameister, H -- New York, N.Y. -- Science. 1989 Jan 13;243(4888):226-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Abteilung Klinische Genetik, Universitat Ulm, Federal Republic of Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2911736" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Embryo, Mammalian/*physiology ; Embryonic and Fetal Development ; Mice ; Nucleic Acid Hybridization ; Organ Specificity ; *Proto-Oncogenes ; RNA Probes ; *Transcription, Genetic
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    The molecular basis of muscular dystrophy in the mdx mouse: a point mutation (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-06-30
    Description: The mdx mouse is an X-linked myopathic mutant, an animal model for human Duchenne muscular dystrophy. In both mouse and man the mutations lie within the dystrophin gene, but the phenotypic differences of the disease in the two species confer much interest on the molecular basis of the mdx mutation. The complementary DNA for mouse dystrophin has been cloned, and the sequence has been used in the polymerase chain reaction to amplify normal and mdx dystrophin transcripts in the area of the mdx mutation. Sequence analysis of the amplification products showed that the mdx mouse has a single base substitution within an exon, which causes premature termination of the polypeptide chain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sicinski, P -- Geng, Y -- Ryder-Cook, A S -- Barnard, E A -- Darlison, M G -- Barnard, P J -- New York, N.Y. -- Science. 1989 Jun 30;244(4912):1578-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Unit, MRC Centre, Cambridge, United Kingdom.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2662404" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Chromosome Mapping ; Cloning, Molecular ; Codon ; DNA/genetics ; DNA Probes ; DNA-Directed DNA Polymerase ; Dystrophin ; Exons ; Gene Amplification ; Humans ; Mice ; Mice, Mutant Strains ; Molecular Sequence Data ; Muscle Proteins/*genetics ; Muscular Dystrophy, Animal/*genetics ; *Mutation ; Nucleic Acid Hybridization ; Phenotype
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    Studies of the HER-2/neu proto-oncogene in human breast and ovarian cancer (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-05-12
    Description: Carcinoma of the breast and ovary account for one-third of all cancers occurring in women and together are responsible for approximately one-quarter of cancer-related deaths in females. The HER-2/neu proto-oncogene is amplified in 25 to 30 percent of human primary breast cancers and this alteration is associated with disease behavior. In this report, several similarities were found in the biology of HER-2/neu in breast and ovarian cancer, including a similar incidence of amplification, a direct correlation between amplification and over-expression, evidence of tumors in which overexpression occurs without amplification, and the association between gene alteration and clinical outcome. A comprehensive study of the gene and its products (RNA and protein) was simultaneously performed on a large number of both tumor types. This analysis identified several potential shortcomings of the various methods used to evaluate HER-2/neu in these diseases (Southern, Northern, and Western blots, and immunohistochemistry) and provided information regarding considerations that should be addressed when studying a gene or gene product in human tissue. The data presented further support the concept that the HER-2/neu gene may be involved in the pathogenesis of some human cancers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Slamon, D J -- Godolphin, W -- Jones, L A -- Holt, J A -- Wong, S G -- Keith, D E -- Levin, W J -- Stuart, S G -- Udove, J -- Ullrich, A -- CA 36827/CA/NCI NIH HHS/ -- CA 48780/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1989 May 12;244(4905):707-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, U.C.L.A. School of Medicine 90024.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2470152" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biomarkers, Tumor ; Breast Neoplasms/*genetics ; Cloning, Molecular ; DNA/analysis ; Female ; Gene Amplification ; Gene Expression Regulation ; Humans ; Immunohistochemistry ; Nucleic Acid Hybridization ; Ovarian Neoplasms/*genetics ; Prognosis ; Protein Kinases ; Proto-Oncogene Proteins/*genetics ; *Proto-Oncogenes ; RNA/analysis ; Receptor, ErbB-2
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  • 36
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    Neurotoxicity of a fragment of the amyloid precursor associated with Alzheimer's disease (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-07-28
    Description: Amyloid deposition in senile plaques and the cerebral vasculature is a marker of Alzheimer's disease. Whether amyloid itself contributes to the neurodegenerative process or is simply a by-product of that process is unknown. Pheochromocytoma (PC12) and fibroblast (NIH 3T3) cell lines were transfected with portions of the gene for the human amyloid precursor protein. Stable PC12 cell transfectants expressing a specific amyloid-containing fragment of the precursor protein gradually degenerated when induced to differentiate into neuronal cells with nerve growth factor. Conditioned medium from these cells was toxic to neurons in primary hippocampal cultures, and the toxic agent could be removed by immunoabsorption with an antibody directed against the amyloid polypeptide. Thus, a peptide derived from the amyloid precursor may be neurotoxic.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yankner, B A -- Dawes, L R -- Fisher, S -- Villa-Komaroff, L -- Oster-Granite, M L -- Neve, R L -- HD 18655/HD/NICHD NIH HHS/ -- HD 18658/HD/NICHD NIH HHS/ -- NS 01240/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1989 Jul 28;245(4916):417-20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, Harvard Medical School, Boston, MA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2474201" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/*etiology/pathology ; Amyloid/genetics/*physiology ; Blotting, Northern ; Cell Line ; Fibroblasts ; Gene Expression Regulation ; Humans ; Immunoblotting ; Neurons/pathology ; Nucleic Acid Hybridization ; Pheochromocytoma ; Protein Precursors/genetics/*physiology ; RNA/analysis/genetics ; Restriction Mapping ; Transfection ; Tumor Cells, Cultured
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    The reservoir for HIV-1 in human peripheral blood is a T cell that maintains expression of CD4 (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-07-21
    Description: Human immunodeficiency virus type 1 (HIV-1) selectively infects cells expressing the CD4 molecule, resulting in substantial quantitative and qualitative defects in CD4+ T lymphocyte function in patients with acquired immunodeficiency syndrome (AIDS). However, only a very small number of cells in the peripheral blood of HIV-1-infected individuals are expressing virus at any given time. Previous studies have demonstrated that in vitro infection of CD4+ T cells with HIV-1 results in downregulation of CD4 expression such that CD4 protein is no longer detectable on the surface of the infected cells. In the present study, highly purified subpopulations of peripheral blood mononuclear cells (PBMCs) from AIDS patients were obtained and purified by fluorescence-automated cell sorting. They were examined with the methodologies of virus isolation by limiting dilution analysis, in situ hybridization, immunofluorescence, and gene amplification. Within PBMCs, HIV-1 was expressed in vivo predominantly in the T cell subpopulation which, in contrast to the in vitro observations, continued to express CD4. The precursor frequency of these HIV-1-expressing cells was about 1/1000 CD4+ T cells. The CD4+ T cell population contained HIV-1 DNA in all HIV-1-infected individuals studied and the frequency in AIDS patients was at least 1/100 cells. This high level of infection may be the primary cause for the progressive decline in number and function of CD4+ T cells in patients with AIDS.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schnittman, S M -- Psallidopoulos, M C -- Lane, H C -- Thompson, L -- Baseler, M -- Massari, F -- Fox, C H -- Salzman, N P -- Fauci, A S -- N01-CO-74102/CO/NCI NIH HHS/ -- New York, N.Y. -- Science. 1989 Jul 21;245(4915):305-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Immunoregulation, 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/2665081" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*immunology/microbiology ; Antigens, Differentiation, T-Lymphocyte/*immunology ; Cell Separation ; DNA, Viral/analysis ; Flow Cytometry ; Fluorescent Antibody Technique ; Gene Amplification ; HIV-1/genetics/*physiology ; Humans ; Nucleic Acid Hybridization ; RNA, Viral/analysis ; T-Lymphocytes/immunology/*microbiology
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    Amplification of a gene related to mammalian mdr genes in drug-resistant Plasmodium falciparum (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-09
    Description: The malaria parasite Plasmodium falciparum contains at least two genes related to the mammalian multiple drug resistance genes, and at least one of the P. falciparum genes is expressed at a higher level and is present in higher copy number in a strain that is resistant to multiple drugs than in a strain that is sensitive to the drugs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilson, C M -- Serrano, A E -- Wasley, A -- Bogenschutz, M P -- Shankar, A H -- Wirth, D F -- 1F23 AI07801-01/AI/NIAID NIH HHS/ -- 1K11 AI00892-01/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1989 Jun 9;244(4909):1184-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Tropical Public Health Harvard School of Public Health, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2658061" target="_blank"〉PubMed〈/a〉
    Keywords: *ATP-Binding Cassette Transporters ; Amino Acid Sequence ; Animals ; Base Sequence ; Drug Resistance/genetics ; *Gene Amplification ; Invertebrate Hormones/*genetics ; Mice ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Plasmodium falciparum/*genetics ; *Protozoan Proteins ; Sequence Homology, Nucleic Acid
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    Specific expression of nuclear proto-oncogenes before entry into meiotic prophase of spermatogenesis (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-08-18
    Description: The expression of proto-oncogenes representative of several functional categories has been investigated during development of mouse male germ cells. The c-raf proto-oncogene and three members of the c-ras gene family were expressed in mitotically active stem cells, throughout the prophase of meiosis and to varying extents in post-meiotic cell types. In contrast, the nuclear proto-oncogenes c-fos, c-jun, and c-myc were specifically expressed at high levels in type B spermatogonia. High levels of c-myc and c-jun RNAs were also detected in spermatocytes early in the prophase of meiosis. The type B spermatogonia represent the last mitotic cell division before entry into meiotic prophase; therefore, these nuclear proto-oncogenes may be involved in altering programs of gene expression at this developmental transition.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wolfes, H -- Kogawa, K -- Millette, C F -- Cooper, G M -- CA 21082/CA/NCI NIH HHS/ -- CA 28946/CA/NCI NIH HHS/ -- HD 15269/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1989 Aug 18;245(4919):740-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Dana-Farber Cancer Institute, Boston, MA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2475907" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Nucleus/*metabolism ; DNA-Binding Proteins/genetics ; *Gene Expression Regulation ; Male ; *Meiosis ; Mice ; Nucleic Acid Hybridization ; Proto-Oncogene Proteins/genetics ; Proto-Oncogene Proteins c-fos ; Proto-Oncogene Proteins c-jun ; Proto-Oncogene Proteins c-myc ; Proto-Oncogene Proteins c-raf ; Proto-Oncogene Proteins p21(ras) ; *Proto-Oncogenes ; RNA/analysis ; Spermatids/metabolism ; Spermatocytes/metabolism ; *Spermatogenesis ; Spermatogonia/metabolism ; Spermatozoa/analysis/metabolism/*ultrastructure ; Transcription Factors/genetics ; Transcription, Genetic
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    Unusual pattern of accumulation of mRNA encoding EGF-related protein in sea urchin embryos (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-10
    Description: A sea urchin (Strongylocentrotus purpuratus) messenger RNA encoding a protein (SpEGF2) related to epidermal growth factor (EGF) was identified. The full-length complementary DNA sequence predicts a protein with an unusually simple structure, including four tandem EGF-like repeats and a hydrophobic leader, but lacking a potential transmembrane domain. Sequence similarities suggest that the peptides are homologous to two peptides from a different sea urchin species, which cause a classic developmental defect, exogastrulation, when added to the seawater outside of embryos. The SpEGF2 messenger RNA begins to accumulate at blastula stage, and in pluteus larvae it is distributed in discrete regions of ectoderm that are not congruent with known histological borders. One region corresponds to that expressing the homeodomain-containing protein, SpHbox1. The structure of the SpEGF2 protein and the pattern of accumulation of its messenger RNA suggest that it may have important functions as a secreted factor during development of sea urchin embryos.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yang, Q -- Angerer, L M -- Angerer, R C -- GM25553/GM/NIGMS NIH HHS/ -- HD602/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1989 Nov 10;246(4931):806-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Rochester, NY 14627.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2814501" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Codon/genetics ; DNA/*genetics ; Epidermal Growth Factor/*genetics/physiology ; Molecular Sequence Data ; Nucleic Acid Hybridization ; RNA, Messenger/*biosynthesis ; Repetitive Sequences, Nucleic Acid ; Sea Urchins/embryology/*genetics
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    Phylogenetic stains: ribosomal RNA-based probes for the identification of single cells (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-03-10
    Description: Rapid phylogenetic identification of single microbial cells was achieved with a new staining method. Formaldehyde-fixed, intact cells were hybridized with fluorescently labeled oligodeoxynucleotides complementary to 16S ribosomal RNA (rRNA) and viewed by fluorescence microscopy. Because of the abundance of rRNA in cells, the binding of the fluorescent probes to individual cells is readily visualized. Phylogenetic identification is achieved by the use of oligonucleotides (length 17 to 34 nucleotides) that are complementary to phylogenetic group-specific 16S rRNA sequences. Appropriate probes can be composed of oligonucleotide sequences that distinguish between the primary kingdoms (eukaryotes, eubacteria, archaebacteria) and between closely related organisms. The simultaneous use of multiple probes, labeled with different fluorescent dyes, allows the identification of different cell types in the same microscopic field. Quantitative microfluorimetry shows that the amount of an rRNA-specific probe that binds to Escherichia coli varies with the ribosome content and therefore reflects growth rate.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉DeLong, E F -- Wickham, G S -- Pace, N R -- GM34527/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Mar 10;243(4896):1360-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Indiana University, Bloomington 47405.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2466341" target="_blank"〉PubMed〈/a〉
    Keywords: Bacillus megaterium/*genetics ; Microscopy, Fluorescence/methods ; Nucleic Acid Hybridization ; *Oligonucleotide Probes ; *Phylogeny ; Proteus/*genetics ; RNA, Ribosomal/*analysis ; RNA, Ribosomal, 16S/*analysis/genetics ; Saccharomyces cerevisiae/*genetics ; Staining and Labeling
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    Germline transmission of exogenous genes in the chicken (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-27
    Description: Difficulties associated with in vitro manipulation and culture of the early chicken embryo have restricted generation of transgenic chickens to approaches that use replication-competent retroviruses. The need to produce transgenic chickens in the absence of replicating virus prompted development of a new method of gene transfer into the chicken. Microinjection of the replication-defective reticuloendotheliosis virus (REV) vector ME111 beneath unincubated chicken embryo blastoderms results in infection of germline stem cells. This vector contains genetic information exogenous to the chicken genome, including both the herpes simplex virus type 1 thymidine kinase gene and the Tn5 neomycin phosphotransferase gene. About 8 percent of male birds hatched from injected embryos contained vector DNA in their semen. All four positive males tested passed vector sequences onto their progeny. Analysis of G1 offspring showed that gonads of G0 male birds were mosaic with respect to insertion of vector provirus. Thus, primordial germ cells present in the unincubated chicken embryo blastoderm are susceptible to infection by defective REV vectors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bosselman, R A -- Hsu, R Y -- Boggs, T -- Hu, S -- Bruszewski, J -- Ou, S -- Kozar, L -- Martin, F -- Green, C -- Jacobsen, F -- New York, N.Y. -- Science. 1989 Jan 27;243(4890):533-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Amgen Inc., Thousand Oaks, CA 91320.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2536194" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Genetically Modified ; *Blastoderm ; Blotting, Southern ; Chick Embryo ; Chickens ; DNA Probes ; DNA, Viral/analysis ; *Germ Cells ; Kanamycin Kinase ; Male ; Microinjections ; Nucleic Acid Hybridization ; Phosphotransferases/genetics ; Retroviridae/genetics ; Semen/analysis ; Simplexvirus/enzymology/genetics ; Stem Cells ; Thymidine Kinase/genetics ; *Transfection
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    Autocrine induction of collagenase by serum amyloid A-like and beta 2-microglobulin-like proteins (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-02-03
    Description: Two autocrine proteins of 14 and 12 kilodaltons that induce the synthesis of rabbit fibroblast collagenase were identified. The proteins were purified from serum-free culture medium taken from rabbit synovial fibroblasts stimulated with phorbol myristate acetate. The amino-terminal sequences of the 14- and 12-kilodalton species were approximately 60 to 80 percent homologous with serum amyloid A and beta 2 microglobulin, respectively. The polyacrylamide gel-eluted proteins retained the ability to induce collagenase synthesis in rabbit and human fibroblasts. These autocrine proteins may provide a means to modulate collagenase synthesis in normal remodeling as well as in inflammation and disease states.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brinckerhoff, C E -- Mitchell, T I -- Karmilowicz, M J -- Kluve-Beckerman, B -- Benson, M D -- AM-20582/AM/NIADDK NIH HHS/ -- AM-7448/AM/NIADDK NIH HHS/ -- RR-00750/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1989 Feb 3;243(4891):655-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Dartmouth Medical School, Hanover, NH 03756.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2536953" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cells, Cultured ; Chromatography, High Pressure Liquid ; DNA Probes ; Enzyme Induction/drug effects ; Fibroblasts/enzymology ; Humans ; Immunosorbent Techniques ; Isoelectric Focusing ; Microbial Collagenase/*biosynthesis ; Molecular Sequence Data ; Nucleic Acid Hybridization ; RNA, Messenger ; Rabbits ; Serum Amyloid A Protein/genetics/isolation & purification/*pharmacology ; Synovial Membrane/*enzymology ; Tetradecanoylphorbol Acetate/pharmacology ; beta 2-Microglobulin/genetics/isolation & purification/*pharmacology
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    Commitment of mouse fibroblasts to adipocyte differentiation by DNA transfection (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-05
    Description: Cells of the mouse cell line 3T3-F442A can be induced by various hormones to differentiate into adipocytes, whereas cells of 3T3-C2, a subclone of 3T3, cannot. However, transfection of DNA from uninduced 3T3-F422A cells into 3T3-C2 cells permits recovery of 3T3-C2 transfectants that differentiate into adipocytes in the presence of insulin. DNA isolated from human fat tissue, when transfected into 3T3-C2 mouse cells, also gives rise to mouse transfectants that are induced to differentiate into adipocytes by the addition of insulin. Apparently, transfection of a trans-regulatory gene (or genes) from 3T3-F442A or human fat cells into 3T3-C2 cells is sufficient to commit 3T3-C2 cells to adipocyte differentiation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, S -- Teicher, L C -- Kazim, D -- Pollack, R E -- Wise, L S -- New York, N.Y. -- Science. 1989 May 5;244(4904):582-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, Columbia University, New York, NY 10027.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2470149" target="_blank"〉PubMed〈/a〉
    Keywords: 1-Methyl-3-isobutylxanthine/pharmacology ; Adipose Tissue/*cytology ; Animals ; Cell Differentiation/drug effects ; Cell Line ; DNA/*genetics ; DNA Probes ; DNA Restriction Enzymes ; Dexamethasone/pharmacology ; Fibroblasts/*cytology ; Glycerolphosphate Dehydrogenase/metabolism ; Humans ; Insulin/pharmacology ; Mice ; Molecular Weight ; Nucleic Acid Hybridization ; RNA, Messenger/analysis ; *Transfection
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    A Salmonella locus that controls resistance to microbicidal proteins from phagocytic cells (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-02-24
    Description: Facultative intracellular pathogens pose an important health problem because they circumvent a primary defense mechanism of the host: killing and degradation by professional phagocytic cells. A gene of the intracellular pathogen Salmonella typhimurium that is required for virulence and intracellular survival was identified and shown to have a role in resistance to defensins and possibly to other microbicidal mechanisms of the phagocyte. This gene may prove to be a regulatory element in the expression of virulence functions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fields, P I -- Groisman, E A -- Heffron, F -- AI07235/AI/NIAID NIH HHS/ -- AI22933/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1989 Feb 24;243(4894 Pt 1):1059-62.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Scripps Clinic and Research Foundation, La Jolla, CA 92037.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2646710" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood Proteins/*physiology ; Cytoplasmic Granules/analysis ; DNA, Bacterial/genetics ; Defensins ; *Genes, Bacterial ; Humans ; Macrophages/analysis/physiology ; Mice ; Mice, Inbred BALB C ; Mutation ; Neutrophils/analysis ; Nucleic Acid Hybridization ; Phagocytes/*physiology ; Plasmids ; Rabbits ; Salmonella typhimurium/*genetics/pathogenicity
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    Cloning and expression of a Xenopus embryonic gap junction protein (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-03-03
    Description: Gap junctions in the early amphibian embryo may play a fundamental role in the regulation of differentiation by mediating the cell-to-cell transfer of chemical signals. A complementary DNA encoding a gap junction present in Xenopus oocytes and early embryos has now been cloned and sequenced. This protein sequence is homologous to the well-characterized gap junction structural proteins rat connexin32 and connexin43. RNA blot analysis of total Xenopus oocyte RNA showed hybridization to a single 1.6-kilobase band. This messenger RNA is abundant in oocytes, decreases to levels below the sensitivity of our assay by stage 15 (18 hours), and is not detectable in RNA from a number of adult organs. To confirm that the oocyte cDNA encodes a gap junction channel, the protein was over expressed in Xenopus oocytes by injection of RNA synthesized in vitro. Pairs of RNA-injected oocytes formed many more time- and voltage-sensitive cell-cell channels than water-injected pairs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ebihara, L -- Beyer, E C -- Swenson, K I -- Paul, D L -- Goodenough, D A -- GM18974/GM/NIGMS NIH HHS/ -- GM37751/GM/NIGMS NIH HHS/ -- HL28958-06/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1989 Mar 3;243(4895):1194-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, Columbia University, New York, NY 10032.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2466337" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cell Communication ; *Cloning, Molecular ; Connexins ; DNA Probes ; Electric Conductivity ; Female ; Gene Expression Regulation ; Intercellular Junctions/physiology ; Membrane Proteins/*genetics/physiology ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Oocytes/analysis/physiology ; RNA/analysis ; RNA, Messenger/analysis ; Rats ; Tissue Distribution ; Xenopus/*embryology
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    Repeat-induced G-C to A-T mutations in Neurospora (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-30
    Description: In the Neurospora genome duplicate sequences are detected and altered in the sexual phase. Both copies of duplicate genes are inactivated at high frequency, whether or not they are linked. Restriction sites change, and affected sequences typically become heavily methylated. To characterize the alterations of the DNA, duplicated sequences were isolated before and after one or more sexual cycles. DNA sequencing and heteroduplex analyses demonstrated that the process (termed RIP) produces exclusively G-C to A-T mutations. Changes occur principally at sites where adenine is 3' of the changed cytosine. A sequence duplicated at a distant site in the genome lost approximately 10 percent of its G-C pairs in one passage through a cross. A closely linked duplication of the same sequence that was passed twice through a cross lost about half of its G-C pairs. The results suggest a mechanism for the RIP process.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cambareri, E B -- Jensen, B C -- Schabtach, E -- Selker, E U -- GM 35690/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Jun 30;244(4912):1571-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Molecular Biology, University of Oregon, Eugene 97403.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2544994" target="_blank"〉PubMed〈/a〉
    Keywords: Base Composition ; Base Sequence ; Cytosine/metabolism ; DNA Replication ; DNA Restriction Enzymes ; DNA, Fungal/*genetics ; Meiosis ; Methylation ; Molecular Sequence Data ; *Mutation ; Neurospora/*genetics ; Neurospora crassa/*genetics ; Nucleic Acid Heteroduplexes ; Nucleic Acid Hybridization ; *Repetitive Sequences, Nucleic Acid
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    Isolation of a cDNA clone derived from a blood-borne non-A, non-B viral hepatitis genome (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-04-21
    Description: A random-primed complementary DNA library was constructed from plasma containing the uncharacterized non-A, non-B hepatitis (NANBH) agent and screened with serum from a patient diagnosed with NANBH. A complementary DNA clone was isolated that was shown to encode an antigen associated specifically with NANBH infections. This clone is not derived from host DNA but from an RNA molecule present in NANBH infections that consists of at least 10,000 nucleotides and that is positive-stranded with respect to the encoded NANBH antigen. These data indicate that this clone is derived from the genome of the NANBH agent and are consistent with the agent being similar to the togaviridae or flaviviridae. This molecular approach should be of great value in the isolation and characterization of other unidentified infectious agents.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Choo, Q L -- Kuo, G -- Weiner, A J -- Overby, L R -- Bradley, D W -- Houghton, M -- New York, N.Y. -- Science. 1989 Apr 21;244(4902):359-62.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Chiron Corporation, Emeryville, CA 94608.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2523562" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, Viral/*genetics ; Bacteriophage lambda/genetics ; DNA/*genetics/isolation & purification ; Hepatitis Antibodies/analysis ; Hepatitis C/*immunology/microbiology ; Hepatitis Viruses/*genetics/immunology ; Hepatitis, Viral, Human/*immunology ; Immunoblotting ; Nucleic Acid Hybridization ; Pan troglodytes ; Protein Biosynthesis ; RNA, Viral/blood/*genetics
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    A novel mRNA of the A4 amyloid precursor gene coding for a possibly secreted protein (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-08-11
    Description: The gene, encoding the A4 peptide found in the amyloid core of senile plaques isolated from the cerebral cortex of patients with Alzheimer's disease, produces at least three precursors that resemble cell surface receptors. A clone isolated from a human brain complementary DNA library contained the structural sequence for an A4 amyloid peptide precursor with a serine protease inhibitor domain in which 208 amino acids at the carboxyl terminal are replaced by 20 amino acids derived from nucleotide sequences with homology to the Alu repeat family. This protein devoid of the transmembrane domain most likely represents a secreted form of the A4 amyloid peptide precursor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉de Sauvage, F -- Octave, J N -- New York, N.Y. -- Science. 1989 Aug 11;245(4918):651-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratoire de Neurochimie, Universite Catholique de Louvain, Bruxelles, Belgium.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2569763" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/*metabolism ; Amino Acid Sequence ; Amyloid/*genetics/secretion ; Amyloid beta-Protein Precursor ; Base Sequence ; Cerebellum/analysis ; Cerebral Cortex/analysis ; DNA Probes ; Gene Amplification ; Humans ; Middle Aged ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Protein Precursors/*genetics/secretion ; RNA, Messenger/*genetics/isolation & purification ; Receptors, Cell Surface ; Sequence Homology, Nucleic Acid
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    Limbic seizures increase neuronal production of messenger RNA for nerve growth factor (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-08-18
    Description: Nerve growth factor (NGF) produced by telencephalic neurons provides critical trophic support for cholinergic neurons of the basal forebrain. In situ hybridization and nuclease protection analyses demonstrate that limbic seizures dramatically increase the amount of messenger RNA for NGF in the neurons of the hippocampal dentate gyrus within 1 hour of seizure onset and in broadly distributed neocortical and olfactory forebrain neurons some hours later. The increased messenger RNA species is indistinguishable from messenger RNA for transcript B of the beta subunit of NGF from mouse submandibular gland. Thus, the expression of a known growth factor is affected by unusual physiological activity, suggesting one route through which trophic interactions between neurons in adult brain can be modified.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gall, C M -- Isackson, P J -- NS00915/NS/NINDS NIH HHS/ -- NS24747/NS/NINDS NIH HHS/ -- NS26748/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1989 Aug 18;245(4919):758-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anatomy and Neurobiology, University of California, Irvine 92717.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2549634" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autoradiography ; Endonucleases ; Gene Expression Regulation ; Guinea Pigs ; Hippocampus/physiopathology ; Limbic System/*physiopathology ; Mice ; Nerve Growth Factors/*genetics ; Neurons/*metabolism ; Nucleic Acid Hybridization ; RNA Probes ; RNA, Messenger/*biosynthesis ; Rats ; Seizures/*metabolism ; Single-Strand Specific DNA and RNA Endonucleases ; Telencephalon/metabolism ; Tissue Distribution
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    A G protein gamma subunit shares homology with ras proteins (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-26
    Description: Guanine nucleotide binding proteins (G proteins) that transduce signals from cell surface receptors to effector molecules are made up of three subunits, alpha, beta, and gamma. A complementary DNA clone that encodes a 71-amino acid protein was isolated from bovine brain; this protein contains peptide sequences that were derived from the purified gamma subunit of Gi and Go. The primary sequence of this G protein gamma subunit (G gamma) has 55 percent homology to the gamma subunit of transducin (T gamma) and also has homology to functional domains of mammalian ras proteins. The probe for isolating the clone was generated with the use of the polymerase chain reaction (PCR). The extent of divergence between T gamma and G gamma, the isolation of homologous PCR-generated fragments, and the differences between the predicted amino acid sequence of G gamma and that derived from the gamma subunit of Gi and Go indicate that gamma subunits are encoded by a family of genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gautam, N -- Baetscher, M -- Aebersold, R -- Simon, M I -- New York, N.Y. -- Science. 1989 May 26;244(4907):971-4.〈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/2499046" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Brain Chemistry ; Cattle ; Chromatography, High Pressure Liquid ; Cloning, Molecular ; DNA-Directed DNA Polymerase ; Electrophoresis, Polyacrylamide Gel ; GTP-Binding Proteins/*genetics/isolation & purification ; Gene Amplification ; Mice ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Proto-Oncogene Proteins/*genetics ; Proto-Oncogene Proteins p21(ras) ; RNA, Messenger/analysis ; Sequence Homology, Nucleic Acid
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    Cloning of breakpoints of a chromosome translocation identifies the AN2 locus (1989)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1989-06-30
    Description: Chromosome translocations involving 11p13 have been associated with familial aniridia in two kindreds highlighting the chromosomal localization of the AN2 locus. This locus is also part of the WAGR complex (Wilms tumor, aniridia, genitourinary abnormalities, and mental retardation). In one kindred, the translocation is associated with a deletion, and probes for this region were used to identify and clone the breakpoints of the translocation in the second kindred. Comparison of phage restriction maps exclude the presence of any sizable deletion in this case. Sequences at the chromosome 11 breakpoint are conserved in multiple species, suggesting that the translocation falls within the AN2 gene.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gessler, M -- Simola, K O -- Bruns, G A -- GM 34988/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Jun 30;244(4912):1575-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genetics Division, Children's Hospital, Boston, MA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2544995" target="_blank"〉PubMed〈/a〉
    Keywords: Chromosome Deletion ; *Chromosome Mapping ; *Chromosomes, Human, Pair 11 ; Chromosomes, Human, Pair 4 ; *Cloning, Molecular ; DNA Probes ; DNA Restriction Enzymes ; Eye Diseases/congenital/*genetics ; Humans ; Intellectual Disability/genetics ; Iris/*abnormalities ; Nucleic Acid Hybridization ; Phenotype ; Syndrome ; *Translocation, Genetic ; Urogenital Abnormalities ; Wilms Tumor/genetics
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  • 53
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    Endothelial leukocyte adhesion molecule 1: an inducible receptor for neutrophils related to complement regulatory proteins and lectins (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-03-03
    Description: Focal adhesion of leukocytes to the blood vessel lining is a key step in inflammation and certain vascular disease processes. Endothelial leukocyte adhesion molecule-1 (ELAM-1), a cell surface glycoprotein expressed by cytokine-activated endothelium, mediates the adhesion of blood neutrophils. A full-length complementary DNA (cDNA) for ELAM-1 has now been isolated by transient expression in COS cells. Cells transfected with the ELAM-1 clone express a surface structure recognized by two ELAM-1 specific monoclonal antibodies (H4/18 and H18/7) and support the adhesion of isolated human neutrophils and the promyelocytic cell line HL-60. Expression of ELAM-1 transcripts in cultured human endothelial cells is induced by cytokines, reaching a maximum at 2 to 4 hours and decaying by 24 hours; cell surface expression of ELAM-1 protein parallels that of the mRNA. The primary sequence of ELAM-1 predicts an amino-terminal lectin-like domain, an EGF domain, and six tandem repetitive motifs (about 60 amino acids each) related to those found in complement regulatory proteins. A similar domain structure is also found in the MEL-14 lymphocyte cell surface homing receptor, and in granule-membrane protein 140, a membrane glycoprotein of platelet and endothelial secretory granules that can be rapidly mobilized (less than 5 minutes) to the cell surface by thrombin and other stimuli. Thus, ELAM-1 may be a member of a nascent gene family of cell surface molecules involved in the regulation of inflammatory and immunological events at the interface of vessel wall and blood.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bevilacqua, M P -- Stengelin, S -- Gimbrone, M A Jr -- Seed, B -- P01 HL-36028/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1989 Mar 3;243(4895):1160-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Brigham and Women's Hospital, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2466335" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Cell Adhesion ; DNA/genetics ; E-Selectin ; Endothelium, Vascular/metabolism ; Gene Expression Regulation ; Humans ; Immunoassay ; Interleukin-1/pharmacology ; *Membrane Glycoproteins ; Molecular Sequence Data ; Neutrophils/*physiology ; Nucleic Acid Hybridization ; Recombinant Proteins ; Sequence Homology, Nucleic Acid ; Transcription, Genetic ; Transfection ; Tumor Cells, Cultured ; Tumor Necrosis Factor-alpha/pharmacology
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  • 54
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    Activation of an excluded immunoglobulin allele in a human B lymphoma cell line (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-04-21
    Description: Mature B cells that express surface immunoglobulin (Ig) are usually committed to their original Ig product. It was shown that such a cell can replace its light chain by rearranging and expressing a new light chain from the other allele. Anti-idiotype antibodies were used to isolate idiotypic variants from a surface IgM+lambda+ human B cell tumor line. The variants expressed a new lambda light chain. Both the original and the new lambda transcripts were present in the variant cells, but only the new one was expressed as a protein on the cell surface. Therefore, although the cell exhibited allelic exclusion and had only one Ig receptor at a time, the commitment to a particular light chain gene was reversible.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berinstein, N -- Levy, S -- Levy, R -- CA33399/CA/NCI NIH HHS/ -- CA34233/CA/NCI NIH HHS/ -- RR-01685-05/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1989 Apr 21;244(4902):337-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Stanford University Medical Center, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2496466" target="_blank"〉PubMed〈/a〉
    Keywords: *Alleles ; Amino Acid Sequence ; Antibodies, Anti-Idiotypic ; B-Lymphocytes/immunology ; Base Sequence ; DNA/genetics ; DNA Probes ; *Genes, Immunoglobulin ; Genetic Variation ; Humans ; Immunoglobulin Idiotypes/immunology ; Immunoglobulin M/genetics ; Immunoglobulin Variable Region/genetics ; Immunoglobulin lambda-Chains/genetics ; Lymphoma/genetics/*immunology ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Transcription, Genetic ; Tumor Cells, Cultured
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    Human multidrug-resistant cell lines: increased mdr1 expression can precede gene amplification (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-05-02
    Description: The development of simultaneous resistance to multiple structurally unrelated drugs is a major impediment to cancer chemotherapy. Multidrug resistance in human KB carcinoma cells selected in colchicine, vinblastine, or Adriamycin is associated with amplification of specific DNA sequences (the multidrug resistance locus, mdr1). During colchicine selection resistance is initially accompanied by elevated expression of a 4.5-kilobase mdr1 messenger RNA (mRNA) without amplification of the corresponding genomic sequences. During selection for increased levels of resistance, expression of this mRNA is increased simultaneously with amplification of mdr1 DNA. Increased expression and amplification of mdr1 sequences were also found in multidrug-resistant sublines of human leukemia and ovarian carcinoma cells. These results suggest that increased expression of mdr1 mRNA is a common mechanism for multidrug resistance in human cells. Activation of the mdr1 gene by mutations or epigenetic changes may precede its amplification during the development of resistance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shen, D W -- Fojo, A -- Chin, J E -- Roninson, I B -- Richert, N -- Pastan, I -- Gottesman, M M -- New York, N.Y. -- Science. 1986 May 2;232(4750):643-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3457471" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Colchicine/pharmacology ; Cricetinae ; Cricetulus ; DNA, Neoplasm/genetics ; Doxorubicin/pharmacology ; *Drug Resistance ; Female ; *Gene Amplification ; Humans ; Leukemia, Lymphoid/drug therapy ; Neoplasms/*drug therapy/genetics ; Nucleic Acid Hybridization ; Ovarian Neoplasms/drug therapy ; RNA, Messenger/genetics ; Vinblastine/pharmacology
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    Tandem duplication of D-loop and ribosomal RNA sequences in lizard mitochondrial DNA (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-09-26
    Description: Some Cnemidophorus exsanguis have mitochondrial DNA's (mtDNA's) that are 22.2 kilobases (kb) in size, whereas most have mtDNA's of 17.4 kb. Restriction site mapping, DNA transfer hybridization experiments, and electron microscopy show that the size increment stems from the tandem duplication of a 4.8-kb region that includes regulatory sequences and transfer and ribosomal RNA genes. This observation is notable in that sequences outside of the control region are involved in major length variation. Besides revealing a novel form of mtDNA evolution in animals, these duplications provide a useful system for investigating the molecular and evolutionary biology of animal mtDNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Moritz, C -- Brown, W M -- GM30144/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1986 Sep 26;233(4771):1425-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3018925" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; DNA Restriction Enzymes ; DNA, Mitochondrial/*genetics ; Lizards ; Microscopy, Electron ; Nucleic Acid Conformation ; Nucleic Acid Hybridization ; RNA, Ribosomal/*genetics ; Repetitive Sequences, Nucleic Acid
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    Immortalization of human T lymphocytes after transfection of Epstein-Barr virus DNA (1986)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1986-08-29
    Description: Epstein-Barr virus (EBV), a ubiquitous human herpesvirus, has the ability to transform human B lymphocytes. No other cell type has been experimentally transformed by EBV, either by intact virions or naked viral DNA and subgenomic fragments. Two immortalized human T-lymphoblastoid cell lines have now been established by transfecting cord blood lymphocytes with purified B95-8 viral DNA enclosed in fusogenic Sendai virus envelopes (RSVE) and then exposing the cells to EBV from a P3HR-1 cell subclone. One of these lines, which has been fully characterized, is termed HBD-1. This line is positive for EBV DNA and expresses surface OKT11, OKT4, and Tac receptors, but not M-1, mu immunoglobulin chains, EBV receptors, or B-1 surface markers. The cells contain fully rearranged T-cell receptor genes and germline immunoglobulin genes. The karyotype of the cells is normal, they do not require interleukin-2 for growth, and do not contain human T-lymphotropic virus type I. However, the HBD-1 cells contain incomplete EBV genomes and express several EBV-determined antigens, including the early antigen type D, membrane antigens, but not EBV-determined nuclear antigen (EBNA). This association of the EBV genome with permanently growing hematopoietic cells of non B-cell lineage should prove useful in studies on the mechanism of EBV-mediated cell transformation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stevenson, M -- Volsky, B -- Hedenskog, M -- Volsky, D J -- CA33386/CA/NCI NIH HHS/ -- CA37465/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1986 Aug 29;233(4767):980-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3016899" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; Cell Survival ; DNA, Viral/*genetics ; Deltaretrovirus/genetics ; Herpesvirus 4, Human/*genetics ; Humans ; Nucleic Acid Hybridization ; T-Lymphocytes/*microbiology/physiology ; *Transfection
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    Suprachiasmatic nucleus vasopressin messenger RNA: circadian variation in normal and Brattleboro rats (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-04-18
    Description: In situ hybridization of an oligonucleotide probe complementary to vasopressin messenger RNA (mRNA) in sections from normal or Brattleboro rat hypothalami revealed hybridization densities in each of three vasopressin-rich nuclei: the supraoptic, paraventricular, and suprachiasmatic. When entrained to a daily light-dark cycle, each rat strain displayed diurnal variation in hybridizable mRNA in the suprachiasmatic, but not in the supraoptic or paraventricular nuclei. The higher values for suprachiasmatic mRNA in the morning correlate well with previously elucidated morning increases in vasopressin immunoreactivity in the cerebrospinal fluid. These results support the utility of in situ hybridization techniques for elucidating physiological influences on regional peptidergic function, are consistent with a prominent role for vasopressinergic suprachiasmatic neurons in generating the cerebrospinal fluid vasopressin rhythm, and suggest that regulation of this mRNA rhythm is not dependent on release of intact peptide.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Uhl, G R -- Reppert, S M -- New York, N.Y. -- Science. 1986 Apr 18;232(4748):390-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3961487" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autoradiography ; *Circadian Rhythm ; Nucleic Acid Hybridization ; Paraventricular Hypothalamic Nucleus/analysis/physiology ; RNA, Messenger/*analysis/isolation & purification ; Rats ; Rats, Brattleboro ; Rats, Inbred Strains ; Suprachiasmatic Nucleus/*analysis/physiology ; Supraoptic Nucleus/analysis/physiology ; Vasopressins/genetics/*physiology
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    Expression and characterization of the trans-activator of HTLV-III/LAV virus (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-11-21
    Description: The human T-lymphotropic retrovirus HTLV-III/LAV encodes a trans-activator that increases viral gene expression. We expressed this trans-activator in animal cells and studied its structural and functional characteristics. The putative trans-activator protein was immunoprecipitated from overproducing stable cell lines and shown to migrate as a 14-kilodalton polypeptide on sodium dodecyl sulfate-polyacrylamide gels. S1 nuclease mapping experiments showed that the trans-activator increases the levels of steady-state messenger RNA transcribed from the viral long terminal repeat promoter. Sequences within the R region of the HTLV-III/LAV long terminal repeat are essential for trans-activation. Quantitations of messenger RNA and protein showed that the protein increase was greater than the messenger RNA increase in CV1 and HeLa cells, indicating that more than one mechanism was responsible for the trans-activation and that cell type-specific factors may determine the final level of trans-activation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wright, C M -- Felber, B K -- Paskalis, H -- Pavlakis, G N -- N01-CO-23909/CO/NCI NIH HHS/ -- New York, N.Y. -- Science. 1986 Nov 21;234(4779):988-92.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3490693" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; Electrophoresis, Polyacrylamide Gel ; Gene Products, rev ; HIV/*genetics ; Molecular Sequence Data ; Nucleic Acid Hybridization ; RNA, Messenger/analysis ; Retroviridae Proteins/*metabolism ; Transfection ; Viral Proteins/*biosynthesis ; Virus Activation ; rev Gene Products, Human Immunodeficiency Virus
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    Chromosome Y-specific DNA is transferred to the short arm of X chromosome in human XX males (1986)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1986-08-15
    Description: Y-chromosomal DNA is present in the genomes of most human XX males. In these cases, maleness is probably due to the presence of the Y-encoded testis-determining factor (TDF). By means of in situ hybridization of a probe (pDP105) detecting Y-specific DNA to metaphases from three XX males, it was demonstrated that the Y DNA is located on the tip of the short arm of an X chromosome. This finding supports the hypothesis that XX maleness is frequently the result of transfer of Y DNA, including TDF, to a paternally derived X chromosome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Andersson, M -- Page, D C -- de la Chapelle, A -- New York, N.Y. -- Science. 1986 Aug 15;233(4765):786-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3738510" target="_blank"〉PubMed〈/a〉
    Keywords: Cells, Cultured ; Chromosome Mapping ; DNA/*genetics ; Humans ; Lymphocyte Activation ; Lymphocytes/cytology ; Male ; Metaphase ; Nucleic Acid Hybridization ; *Sex Chromosome Aberrations ; Sex Determination Analysis ; *X Chromosome ; *Y Chromosome
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    Cloned fragment of the hepatitis delta virus RNA genome: sequence and diagnostic application (1986)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1986-05-16
    Description: Hepatitis delta virus (HDV) is a replication-defective etiological agent of hepatitis that requires hepatitis B virus (HBV) as a helper. A complementary DNA (cDNA) fragment of the RNA genome of HDV was cloned into the plasmid vector pBR322, and the primary nucleotide sequence and predicted protein products of the cDNA fragment were determined. This cloned cDNA fragment has been used as a sensitive radioactive probe for the detection of HDV RNA in the serum of patients with either acute or chronic HDV infections.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Denniston, K J -- Hoyer, B H -- Smedile, A -- Wells, F V -- Nelson, J -- Gerin, J L -- N01-AI-22665/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1986 May 16;232(4752):873-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3704630" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Cloning, Molecular ; Hepatitis D/*diagnosis/microbiology ; Hepatitis Delta Virus/*genetics ; Humans ; Nucleic Acid Hybridization ; Pan troglodytes ; RNA, Viral/*genetics
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  • 62
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    Interferon and c-ets-1 genes in the translocation (9;11)(p22;q23) in human acute monocytic leukemia (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-01-17
    Description: Gene probes for interferons alpha and beta 1 and v-ets were hybridized to metaphase chromosomes from three patients with acute monocytic leukemia who had a chromosomal translocation, t(9;11)(p22;q23). The break in the short arm of chromosome 9 split the interferon genes, and the interferon-beta 1 gene was translocated to chromosome 11. The c-ets-1 gene was translocated from chromosome 11 to the short arm of chromosome 9 adjacent to the interferon genes. No DNA rearrangement was observed when these probes were hybridized to genomic DNA from leukemic cells of two of the patients. The results suggest that the juxtaposition of the interferon and c-ets-1 genes may be involved in the pathogenesis of human monocytic leukemia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Diaz, M O -- Le Beau, M M -- Pitha, P -- Rowley, J D -- CA 16910/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1986 Jan 17;231(4735):265-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3455787" target="_blank"〉PubMed〈/a〉
    Keywords: Chromosome Mapping ; Chromosomes, Human, 6-12 and X ; DNA, Neoplasm/genetics ; Humans ; Interferon Type I/*genetics ; Leukemia, Monocytic, Acute/*genetics ; Nucleic Acid Hybridization ; *Proto-Oncogenes ; *Translocation, Genetic
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    Deregulation of c-myc by translocation of the alpha-locus of the T-cell receptor in T-cell leukemias (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-05-16
    Description: Two human T-cell leukemias carrying a t(8;14)(q24;q11) chromosome translocation were studied for rearrangements and expression of the c-myc oncogene. For one leukemia, rearrangement was detected in a region immediately distal (3') to the c-myc locus; no rearrangements of c-myc were observed in the second case (DeF). However, studies with hybrids between human and mouse leukemic T cells indicated that in the leukemic cells of DeF, the breakpoint in chromosome 14 occurred between genes for the variable (V alpha) and the constant (C alpha) regions for the alpha chain of the T-cell receptor. The C alpha locus had translocated to a region more than 38 kilobases 3' to the involved c-myc oncogene. Since human c-myc transcripts were expressed only in hybrids carrying the 8q+ chromosome but not in hybrids containing the normal chromosome 8, it is concluded that the translocation of the C alpha locus 3' to the c-myc oncogene can result in its transcriptional deregulation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Erikson, J -- Finger, L -- Sun, L -- ar-Rushdi, A -- Nishikura, K -- Minowada, J -- Finan, J -- Emanuel, B S -- Nowell, P C -- Croce, C M -- CA10815/CA/NCI NIH HHS/ -- CA25875/CA/NCI NIH HHS/ -- CA39860/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1986 May 16;232(4752):884-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3486470" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Burkitt Lymphoma/genetics ; Chromosomes, Human, 13-15 ; Chromosomes, Human, 6-12 and X ; Humans ; Hybrid Cells ; Karyotyping ; Leukemia/*genetics ; Male ; Mice ; Middle Aged ; Nucleic Acid Hybridization ; *Oncogenes ; Receptors, Antigen, T-Cell/*genetics ; *T-Lymphocytes ; *Translocation, Genetic
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Cross-regulatory interactions among pair-rule genes in Drosophila (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-08-29
    Description: The pair-rule genes of Drosophila are required for the subdivision of the developing embryo into a repeating series of homologous body segments. One of the pair-rule genes, even-skipped (eve), appears to be particularly important for the overall segmentation pattern since eve- embryos lack all segmental subdivisions in the middle body region. On the basis of homeo box cross-homology we have isolated a gene, S72, which probably corresponds to eve. In embryo tissue sections S72 transcripts show a periodic distribution pattern. The eve- phenotype appears to involve altered patterns of fushi tarazu and engrailed expression. These and other findings suggest that pair-rule gene expression might involve hierarchical cross-regulatory interactions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Harding, K -- Rushlow, C -- Doyle, H J -- Hoey, T -- Levine, M -- New York, N.Y. -- Science. 1986 Aug 29;233(4767):953-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3755551" target="_blank"〉PubMed〈/a〉
    Keywords: DNA/genetics ; Drosophila/embryology/*genetics ; *Gene Expression Regulation ; *Genes ; Homozygote ; Morphogenesis ; Nucleic Acid Hybridization
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    Cloning of a cDNA for a T cell-specific serine protease from a cytotoxic T lymphocyte (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-05-16
    Description: A new serine protease was encoded by a clone isolated from a murine cytotoxic T-lymphocyte complementary DNA library by an RNA-hybridization competition protocol. Complementary transcripts were detected in cytotoxic T lymphocytes, spleen cells from nude mice, a rat natural killer cell leukemia, and in two of eight T-helper clones (both cytotoxic), but not in normal mouse kidney, liver, spleen, or thymus, nor in several tested T- and B-cell tumors. T-cell activation with concanavalin A plus interleukin-2 induced spleen cells to express this gene with kinetics correlating with the acquisition of cytolytic capacity. The nucleotide sequence of this gene encoded an amino acid sequence of approximately 25,700 daltons, with 25 to 35 percent identity to members of the serine protease family. The active site "charge-relay" residues (His57, Asp102, and Ser195 of the chymotrypsin numbering system) are conserved, as well as the trypsin-specific Asp (position 189 in trypsin). A Southern blot analysis indicated that this gene is conserved in humans, mouse, and chicken. This serine protease may have a role in lymphocyte lysis and a "lytic cascade."〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gershenfeld, H K -- Weissman, I L -- AI 19512/AI/NIAID NIH HHS/ -- CA09032/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1986 May 16;232(4752):854-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2422755" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cloning, Molecular ; Concanavalin A/pharmacology ; DNA/genetics ; Endopeptidases/*genetics ; Mice ; Mice, Inbred C57BL ; Mice, Inbred CBA ; Mice, Nude ; Nucleic Acid Hybridization ; RNA/genetics ; Serine Endopeptidases ; T-Lymphocytes, Cytotoxic/drug effects/*metabolism
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    Chromosomal localization of muscle nicotinic acetylcholine receptor genes in the mouse (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-11-14
    Description: The chromosomal localization of the genes encoding the four subunits of muscle nicotinic receptor was determined by analyzing restriction fragment length polymorphisms between two mouse species Mus musculus domesticus (DBA/2) and Mus spretus (SPE). Analysis of the progeny of the interspecies mouse backcross (DBA/2 X SPE) X DBA/2 showed that the alpha-subunit gene cosegregates with the alpha-cardiac actin gene on chromosome 17, that the beta-subunit gene is located on chromosome 11, and that the gamma- and delta-subunit genes cosegregate and are located on chromosome 1.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Heidmann, O -- Buonanno, A -- Geoffroy, B -- Robert, B -- Guenet, J L -- Merlie, J P -- Changeux, J P -- New York, N.Y. -- Science. 1986 Nov 14;234(4778):866-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3022377" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/genetics ; Animals ; *Chromosome Mapping ; Crosses, Genetic ; DNA/genetics ; DNA Restriction Enzymes ; Mice ; Mice, Inbred DBA ; Muridae ; Muscles/*analysis ; Nucleic Acid Hybridization ; Polymorphism, Genetic ; Receptors, Nicotinic/*genetics ; Species Specificity
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    Characterization of the supernumerary chromosome in cat eye syndrome (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-05-02
    Description: Most individuals with cat eye syndrome (CES) have a supernumerary bisatellited chromosome which, on the basis of cytogenetic evidence, has been reported to originate from either chromosome 13 or 22. To resolve this question, a single-copy DNA probe, D22S9, was isolated and localized to 22q11 by in situ hybridization to metaphase chromosomes. The number of copies of this sequence was determined in CES patients by means of Southern blots and densitometry analysis of autoradiographs. In patients with the supernumerary chromosome, four copies were found, whereas in one patient with a duplication of part of chromosome 22, there were three copies. Therefore, the syndrome results from the presence of either three or four copies of DNA sequences from 22q11; there is no evidence that sequences from other chromosomes are involved. This work demonstrates how DNA sequence dosage analysis can be used to study genetic disorders that are not readily amenable to standard cytogenetic analysis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McDermid, H E -- Duncan, A M -- Brasch, K R -- Holden, J J -- Magenis, E -- Sheehy, R -- Burn, J -- Kardon, N -- Noel, B -- Schinzel, A -- CA06927/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1986 May 2;232(4750):646-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3961499" target="_blank"〉PubMed〈/a〉
    Keywords: Abnormalities, Multiple/*genetics ; Chromosome Aberrations/*genetics ; Chromosome Disorders ; Chromosomes, Human, 13-15 ; Chromosomes, Human, 21-22 and Y ; Coloboma/*genetics ; DNA/genetics ; Humans ; Nucleic Acid Hybridization ; Syndrome
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    Different mutations in Ashkenazi Jewish and non-Jewish French Canadians with Tay-Sachs disease (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-06-27
    Description: Tay-Sachs disease patients of Ashkenazi Jewish and non-Jewish French Canadian origin are affected with a clinically identical form of this inherited disease. Both have a similar gene frequency for the disorder, which is tenfold higher than that found in the general population. Unlike other patients with the disease, who often display variation at the clinical or biochemical level, the absence of such differences between these two groups has prompted the idea that they may harbor the same mutation. In this report, a complementary DNA clone coding for the alpha chain of human beta-hexosaminidase has been used to analyze the genetic lesions in the alpha-chain locus of two patients with Tay-Sachs disease from each of these groups. On the basis of DNA hybridization analyses, the alpha-chain gene of the Ashkenazi patients appears intact while the alpha-chain gene of French Canadian patients has a 5' deletion of approximately 5 to 8 kilobases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Myerowitz, R -- Hogikyan, N D -- New York, N.Y. -- Science. 1986 Jun 27;232(4758):1646-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3754980" target="_blank"〉PubMed〈/a〉
    Keywords: Canada ; DNA/genetics ; France/ethnology ; Heterozygote ; Humans ; *Jews ; Mutation ; Nucleic Acid Hybridization ; Tay-Sachs Disease/*genetics
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    Hu-ets-1 and Hu-ets-2 genes are transposed in acute leukemias with (4;11) and (8;21) translocations (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-01-24
    Description: Human probes identifying the cellular homologs of the v-ets gene, Hu-ets-1 and Hu-ets-2, and two panels of rodent-human cell hybrids were used to study specific translocations occurring in acute leukemias. The human ets-1 gene was found to translocate from chromosome 11 to 4 in the t(4;11)(q21;23), a translocation characteristic of a subtype of leukemia that represents the expansion of a myeloid/lymphoid precursor cell. Similarly, the human ets-2 gene was found to translocate from chromosome 21 to chromosome 8 in the t(8;21)(q22;q22), a nonrandom translocation commonly found in patients with acute myeloid leukemia with morphology M2 (AML-M2). Both translocations are associated with expression different from the expression in normal lymphoid cells of ets genes, raising the possibility that these genes play a role in the pathogenesis of these leukemias.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sacchi, N -- Watson, D K -- Guerts van Kessel, A H -- Hagemeijer, A -- Kersey, J -- Drabkin, H D -- Patterson, D -- Papas, T S -- AG00029/AG/NIA NIH HHS/ -- HD17449/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1986 Jan 24;231(4736):379-82.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3941901" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Chromosomes, Human, 21-22 and Y ; Chromosomes, Human, 6-12 and X ; Cricetinae ; Cricetulus ; Humans ; Hybrid Cells ; Leukemia/*genetics ; Nucleic Acid Hybridization ; *Oncogenes ; *Translocation, Genetic
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    Molecular genetics of human color vision: the genes encoding blue, green, and red pigments (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-04-11
    Description: Human color vision is based on three light-sensitive pigments. The isolation and sequencing of genomic and complementary DNA clones that encode the apoproteins of these three pigments are described. The deduced amino acid sequences show 41 +/- 1 percent identity with rhodopsin. The red and green pigments show 96 percent mutual identity but only 43 percent identity with the blue pigment. Green pigment genes vary in number among color-normal individuals and, together with a single red pigment gene, are proposed to reside in a head-to-tail tandem array within the X chromosome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nathans, J -- Thomas, D -- Hogness, D S -- New York, N.Y. -- Science. 1986 Apr 11;232(4747):193-202.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2937147" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Biological Evolution ; Cattle ; Cebidae ; Cercopithecidae ; Color ; Color Perception/*physiology ; DNA/metabolism ; Drosophila melanogaster ; Eye Proteins/genetics/physiology ; *Genes ; Humans ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Photoreceptor Cells/physiology ; RNA, Messenger/genetics ; Retinal Pigments/*genetics ; Retinaldehyde/physiology ; Rhodopsin/genetics ; Rod Opsins ; X Chromosome
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    A mouse homeo box gene is expressed in spermatocytes and embryos (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-08-08
    Description: The MH-3 gene, which contains a homeo box that is expressed specifically in the adult testis, was identified and mapped to mouse chromosome 6. By means of in situ hybridization with adult testis sections and Northern blot hybridization with testis RNA from prepuberal mice and from Sl/Sld mutant mice, it was demonstrated that this gene is expressed in male germ cells during late meiosis. In the embryo, MH-3 transcripts were present at day 11.5 post coitum, a stage in mouse development when gonadal differentiation has not yet occurred. The MH-3 gene may have functions in spermatogenesis and embryogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rubin, M R -- Toth, L E -- Patel, M D -- D'Eustachio, P -- Nguyen-Huu, M C -- New York, N.Y. -- Science. 1986 Aug 8;233(4764):663-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3726554" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; DNA/genetics ; Drosophila ; Embryo, Mammalian/*metabolism ; *Embryo, Nonmammalian ; *Genes ; Male ; Mice ; Morphogenesis ; Mutation ; Nucleic Acid Hybridization ; Sequence Homology, Nucleic Acid ; Spermatocytes/*metabolism ; Spermatogenesis
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  • 72
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    Amplification and rearrangement of Hu-ets-1 in leukemia and lymphoma with involvement of 11q23 (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-04-18
    Description: The Hu-ets-1 oncogene was found to be rearranged and amplified 30-fold in one case of acute myelomonocytic leukemia in which a homogeneously staining region occurred on 11q23; the oncogene was rearranged and amplified approximately tenfold in a case of small lymphocytic cell lymphoma with an inverted insertion that also involved band 11q23. This work suggests that Hu-ets-1 is an unusual oncogene that can help explain the common involvement of chromosome band 11q23 in various subtypes of hematopoietic malignancies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rovigatti, U -- Watson, D K -- Yunis, J J -- CA-31024/CA/NCI NIH HHS/ -- CA-33314/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1986 Apr 18;232(4748):398-400.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3457468" target="_blank"〉PubMed〈/a〉
    Keywords: Chromosome Aberrations/genetics ; Chromosome Banding ; Chromosome Disorders ; Chromosome Mapping ; Chromosomes, Human, 13-15/ultrastructure ; *Chromosomes, Human, 6-12 and X/ultrastructure ; DNA, Neoplasm/genetics/isolation & purification ; Humans ; Leukemia, Myeloid, Acute/*genetics ; Lymphoma, Non-Hodgkin/*genetics ; Nucleic Acid Hybridization ; *Oncogenes ; Translocation, Genetic
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    Isolation and sequence of L3T4 complementary DNA clones: expression in T cells and brain (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-10-31
    Description: T lymphocytes express on their surface not only a specific receptor for antigen and major histocompatibility complex proteins, but also a number of additional glycoproteins that are thought to play accessory roles in the processes of recognition and signal transduction. L3T4 is one such T-cell surface protein that is expressed on most mouse thymocytes and on mature mouse T cells that recognize class II (Ia) major histocompatibility complex proteins. Such cells are predominantly of the helper/inducer phenotype. In this study, complementary DNA clones encoding L3T4 were isolated and sequenced. The predicted protein sequence shows that L3T4 is a member of the immunoglobulin gene superfamily. It is encoded by a single gene that does not require rearrangement prior to expression. Although the protein has not previously been demonstrated on nonhematopoietic cells, two messenger RNA species specific for L3T4 are found in brain. The minor species comigrates with the L3T4 transcript in T cells, whereas the major species is 1 kilobase smaller.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tourvieille, B -- Gorman, S D -- Field, E H -- Hunkapiller, T -- Parnes, J R -- 1 F32 CA07877-01/CA/NCI NIH HHS/ -- AI11313/AI/NIAID NIH HHS/ -- GM34991/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1986 Oct 31;234(4776):610-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3094146" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antigens, Differentiation, T-Lymphocyte ; Antigens, Surface/genetics/*isolation & purification ; Base Sequence ; Brain/*metabolism ; Cloning, Molecular ; DNA/genetics/isolation & purification ; Humans ; Mice ; Mice, Inbred C57BL ; Nucleic Acid Hybridization ; RNA, Messenger/genetics ; Sequence Homology, Nucleic Acid ; T-Lymphocytes/*immunology/metabolism
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    Leishmaniasis and malaria: new tools for epidemiologic analysis (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-11-21
    Description: Parasitic diseases are still prevalent in many parts of the world, causing both human suffering and economic loss. Recent developments in biotechnology, such as the use of monoclonal antibodies and recombinant DNA, have the potential for providing both more extensive and detailed information on the parasite in the infected human and in insect vectors. New methods of detection, both in man and insect vectors, have been developed for two parasitic diseases, leishmaniasis and malaria. These new methodologies will be important in epidemiologic studies on the prevalence and transmission of these parasitic diseases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wirth, D F -- Rogers, W O -- Barker, R Jr -- Dourado, H -- Suesebang, L -- Albuquerque, B -- AI 19392/AI/NIAID NIH HHS/ -- AI 21365/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1986 Nov 21;234(4779):975-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3535070" target="_blank"〉PubMed〈/a〉
    Keywords: Antibodies, Monoclonal ; DNA/isolation & purification ; DNA, Recombinant ; Epidemiologic Methods ; Humans ; Insect Vectors ; Leishmania/classification/genetics ; Leishmaniasis/*diagnosis/epidemiology ; Malaria/*diagnosis/epidemiology ; Nucleic Acid Hybridization ; Plasmodium falciparum/genetics/immunology ; Plasmodium vivax/genetics/immunology
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    Diverse gene expression for isotypes of murine serum amyloid A protein during acute phase reaction (1986)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1986-04-11
    Description: Serum amyloid A protein (SAA) is a precursor for a major component of amyloid fibrils, which, upon deposition, cause secondary amyloidosis in diseases such as rheumatoid arthritis. In mice, SAA is encoded by at least three genes, which show diverse expression during inflammation. Furthermore, in amyloidosis-resistant SJL mice, the gene expression for one SAA isotype, SAA2, is defective, although SAA2 gene expression is normal in amyloidosis-susceptible BALB/c mice. Because only SAA2-derived products deposit in mouse amyloid tissues, the resistance of SJL mice to amyloidosis seems to be due to defective SAA2 gene expression. Thus, the study emphasizes the importance of SAA gene structure in determining susceptibility to amyloidosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yamamoto, K -- Shiroo, M -- Migita, S -- New York, N.Y. -- Science. 1986 Apr 11;232(4747):227-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3456645" target="_blank"〉PubMed〈/a〉
    Keywords: Amyloid/*genetics ; Amyloidosis/*genetics ; Animals ; DNA/genetics/metabolism ; Genetic Engineering ; Humans ; Mice ; Mice, Inbred BALB C ; Nucleic Acid Hybridization ; Serum Amyloid A Protein/*genetics
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    Molecular genetics of inherited variation in human color vision (1986)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1986-04-11
    Description: The hypothesis that red-green "color blindness" is caused by alterations in the genes encoding red and green visual pigments has been tested and shown to be correct. Genomic DNA's from 25 males with various red-green color vision deficiencies were analyzed by Southern blot hybridization with the cloned red and green pigment genes as probes. The observed genotypes appear to result from unequal recombination or gene conversion (or both). Together with chromosome mapping experiments, these data identify each of the cloned human visual pigment genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nathans, J -- Piantanida, T P -- Eddy, R L -- Shows, T B -- Hogness, D S -- New York, N.Y. -- Science. 1986 Apr 11;232(4747):203-10.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3485310" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromosome Mapping ; Chromosomes, Human ; Color ; *Color Perception/physiology ; Color Vision Defects/genetics ; DNA/genetics/metabolism ; Gene Frequency ; *Genes ; Genetic Variation ; Genotype ; Humans ; Mice ; Nucleic Acid Hybridization ; Retinal Pigments/genetics ; X Chromosome
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    Human T-cell gamma chain genes: organization, diversity, and rearrangement (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-01-17
    Description: The human T-cell gamma chain genes have been characterized in an attempt to better understand their role in immune response. These immunoglobulin-like genes are encoded in the genome in variable, joining, and constant segments. The human gamma genes include at least six variable region genes, two joining segments, and two constant-region genes in germline DNA. Variable and joining segments recombine during the development of T cells to form rearranged genes. The diversity of human gamma genes produced by this recombinational mechanism is greater than that produced by the murine genome but is more limited than that of other immunoglobulin-like genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Quertermous, T -- Murre, C -- Dialynas, D -- Duby, A D -- Strominger, J L -- Waldman, T A -- Seidman, J G -- AI-15669/AI/NIAID NIH HHS/ -- AM-30241/AM/NIADDK NIH HHS/ -- T32-HL-07208/HL/NHLBI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1986 Jan 17;231(4735):252-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3079918" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; DNA/genetics ; *Genes, MHC Class II ; Humans ; Immunoglobulin J-Chains/genetics ; Immunoglobulin Variable Region/genetics ; Immunoglobulin gamma-Chains/genetics ; Mice ; Nucleic Acid Hybridization ; T-Lymphocytes/*physiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 78
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    Visual pigment homologies revealed by DNA hybridization (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-06-06
    Description: A bovine rhodopsin complementary DNA probe was used to detect homologous visual pigment genes in a variety of species. Under stringent DNA hybridization conditions, genomic DNA from most vertebrate species carried a single homologous fragment. Additional homologies were detected in some vertebrates by reducing the hybridization stringency. Homologous fragments were also detected in DNA isolated from invertebrate species, a unicellular alga, and an archaebacterium; many of these fragments were homologous to a Drosophila opsin probe. These results suggest that photosensory pigments in a wide variety of species arose from a common precursor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Martin, R L -- Wood, C -- Baehr, W -- Applebury, M L -- EY04801/EY/NEI NIH HHS/ -- EY07008/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 1986 Jun 6;232(4755):1266-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3010467" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Base Sequence ; Cattle ; Chickens ; Dna ; DNA Restriction Enzymes ; Drosophila ; Eye Proteins/*genetics ; Mice ; Nucleic Acid Hybridization ; Plants ; Retinal Pigments/*genetics ; Rhodopsin/genetics ; Rod Opsins ; *Sequence Homology, Nucleic Acid ; Sheep
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 79
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    A deletion truncating the gonadotropin-releasing hormone gene is responsible for hypogonadism in the hpg mouse (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-12-12
    Description: Hereditary hypogonadism in the hypogonadal (hpg) mouse is caused by a deletional mutation of at least 33.5 kilobases encompassing the distal half of the gene for the common biosynthetic precursor of gonadotropin-releasing hormone (GnRH) and GnRH-associated peptide (GAP). The partially deleted gene is transcriptionally active as revealed by in situ hybridization histochemistry of hpg hypothalamic tissue sections, but immunocytochemical analysis failed to show the presence of antigen corresponding to any part of the precursor protein.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mason, A J -- Hayflick, J S -- Zoeller, R T -- Young, W S 3rd -- Phillips, H S -- Nikolics, K -- Seeburg, P H -- New York, N.Y. -- Science. 1986 Dec 12;234(4782):1366-71.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3024317" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Brain Chemistry ; Chromosome Deletion ; Chromosome Mapping ; DNA Restriction Enzymes/metabolism ; Gonadotropin-Releasing Hormone/*genetics ; Histocytochemistry ; Hypogonadism/*genetics ; Mice ; Nucleic Acid Hybridization ; Protein Precursors/*genetics ; Transcription, Genetic
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 80
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    Amplification and expression of genes associated with multidrug resistance in mammalian cells (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-05-09
    Description: In multidrug resistance, which is observed clinically and in tissue culture, cells that are challenged with certain cytotoxic drugs develop resistance not only to the selective agent but also to other, seemingly unrelated, agents. The multidrug-resistant phenotype is associated with DNA sequence amplification and with the overproduction of a number of cytosolic and membrane glycoproteins. The differential amplification and altered expression of at least two related genes, termed multidrug-resistant associated genes has been shown in multidrug-resistant Chinese hamster cells. In multidrug-resistant mouse and human cells, genes homologous to those in Chinese hamster cells are also amplified. The level of expression of these genes varied and did not correlate with their copy number. Furthermore, in Chinese hamster cells, the development of resistance to a single drug and multidrug resistance were closely related, but uncoupled, events. The overexpression of the multidrug-resistant genes was better correlated with the degree of resistance to the selective agent than it was with the extent of multidrug resistance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Scotto, K W -- Biedler, J L -- Melera, P W -- CA-08748/CA/NCI NIH HHS/ -- CA-09207/CA/NCI NIH HHS/ -- CA-28595/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1986 May 9;232(4751):751-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2421411" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Cloning, Molecular ; Colchicine/pharmacology ; Cricetinae ; Cricetulus ; DNA/genetics ; Dactinomycin/pharmacology ; Daunorubicin/pharmacology ; *Drug Resistance ; Gene Amplification/*drug effects ; Gene Expression Regulation/*drug effects ; Humans ; Lung/cytology/drug effects ; Mice ; Nucleic Acid Hybridization ; RNA/genetics ; Vincristine/pharmacology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 81
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    Amplification of an esterase gene is responsible for insecticide resistance in a California Culex mosquito (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-08-15
    Description: An esterase gene from the mosquito Culex quinquefasciatus that is responsible for resistance to a variety of organophosphorus (OP) insecticides was cloned in lambda gt11 phage. This gene was used to investigate the genetic mechanism of the high production of the esterase B1 it encodes in OP-resistant Culex quinquefasciatus Say (Tem-R strain) from California. Adults of the Tem-R strain were found to possess at least 250 times more copies of the gene than adults of a susceptible strain (S-Lab). The finding that selection by pesticides may result in the amplification of genes encoding detoxifying enzymes in whole, normally developed, reproducing insects emphasizes the biological importance of this mechanism and opens new areas of investigation in pesticide resistance management.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mouches, C -- Pasteur, N -- Berge, J B -- Hyrien, O -- Raymond, M -- de Saint Vincent, B R -- de Silvestri, M -- Georghiou, G P -- New York, N.Y. -- Science. 1986 Aug 15;233(4765):778-80.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3755546" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Culex/drug effects/enzymology/*genetics ; DNA/analysis ; Drug Resistance ; Esterases/*genetics ; *Gene Amplification ; *Genes ; Insecticides/*pharmacology ; Nucleic Acid Hybridization ; *Organophosphorus Compounds
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 82
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    Structure and diversity of the human T-cell receptor beta-chain variable region genes (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-08-22
    Description: In order to characterize the variability of the expressed human T-cell receptor (TCR) beta-chain repertoire and contrast this variability to the known murine beta-chain repertoire, 15 independent complementary DNA (cDNA) clones containing TCR beta-chain variable region (V beta) genes were isolated from a human tonsil cDNA library. The nucleotide and derived amino acid sequences of these 15 V beta genes were analyzed together with 7 previously defined sequences. Fifteen different human V beta genes could be identified from 22 independent sequences. By means of DNA hybridization and sequence homology comparisons, it was possible to group these 15 genes into ten distinct V beta subfamilies, each containing from one to seven members. Minimal polymorphism was noted between individuals, except in multimember subfamilies. The amino acid sequences of these genes contain conserved amino acids that are also shared by murine TCR V beta genes and immunoglobulins; no features were found that distinguish human V beta genes from their murine counterparts. Evaluation of secondary structure showed that maximum variability coincides with generally hydrophilic portions of the amino acid sequence, while specific hydrophobic regions were conserved in all V beta genes examined.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tillinghast, J P -- Behlke, M A -- Loh, D Y -- 2-T32-AI00112/AI/NIAID NIH HHS/ -- GM 07200/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1986 Aug 22;233(4766):879-83.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3755549" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Dna ; Genes ; Humans ; Nucleic Acid Hybridization ; Polymorphism, Genetic ; Receptors, Antigen, T-Cell/*genetics
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  • 83
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    Specific DNA probe for the diagnosis of Plasmodium falciparum malaria (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-03-21
    Description: Malaria can be diagnosed either by direct microscopic examination of blood smears, which is time consuming and requires expertise, or by immunological techniques, which are effective but do not distinguish between past and present infections. In this study, a simple procedure was developed for spotting lysed blood from infected patients directly onto nitrocellulose paper and identifying the malaria species on the basis of hybridization of parasite DNA with a species-specific probe. A genomic DNA library of Plasmodium falciparum was screened to detect clones containing DNA sequences that are highly repeated within the parasite genome. Several such clones were further analyzed to identify those that hybridize specifically with P. falciparum DNA but not with DNA from humans, P. vivax, or P. cynomolgi. This technique appears to be sensitive enough to detect 10 picograms of purified P. falciparum DNA (equivalent to 100 parasites) and in field studies is able to detect approximately 40 parasites per microliter of blood.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barker, R H Jr -- Suebsaeng, L -- Rooney, W -- Alecrim, G C -- Dourado, H V -- Wirth, D F -- 2 PO1 AI 16305-06/AI/NIAID NIH HHS/ -- T32 AI 07167/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1986 Mar 21;231(4744):1434-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3513309" target="_blank"〉PubMed〈/a〉
    Keywords: Cloning, Molecular ; Collodion ; DNA/genetics/*isolation & purification ; Humans ; Malaria/*diagnosis/genetics ; Nucleic Acid Hybridization ; Plasmodium/genetics ; Plasmodium falciparum/*genetics ; Plasmodium vivax/genetics
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  • 84
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    Molecular cloning of the chicken progesterone receptor (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-08-15
    Description: To define the functional domains of the progesterone receptor required for gene regulation, complementary DNA (cDNA) clones encoding the chicken progesterone receptor have been isolated from a chicken oviduct lambda gt11 cDNA expression library. Positive clones expressed antigenic determinants that cross-reacted with six monospecific antibodies derived from two independent sources. A 36-amino acid peptide sequence obtained by microsequencing of purified progesterone receptor was encoded by nucleotide sequences in the longest cDNA clone. Analysis of the amino acid sequence of the progesterone receptor deduced from the cDNA clones revealed a cysteine-rich region that was homologous to a region found in the estrogen and glucocorticoid receptors and to the avian erythroblastosis virus gag-erb-A fusion protein. Northern blot analysis with chicken progesterone receptor cDNA's indicated the existence of at least three messenger RNA species. These messages were found only in oviduct and could be induced by estrogens.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Conneely, O M -- Sullivan, W P -- Toft, D O -- Birnbaumer, M -- Cook, R G -- Maxwell, B L -- Zarucki-Schulz, T -- Greene, G L -- Schrader, W T -- O'Malley, B W -- New York, N.Y. -- Science. 1986 Aug 15;233(4765):767-70.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2426779" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibodies, Monoclonal ; Base Sequence ; Chickens ; *Cloning, Molecular ; Cross Reactions ; DNA/*metabolism ; Epitopes/analysis ; Female ; *Genes ; Humans ; Nucleic Acid Hybridization ; Oviducts/metabolism ; RNA, Messenger/genetics ; Receptors, Progesterone/*genetics ; Species Specificity
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  • 85
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    Multiple, distinct forms of bovine and human protein kinase C suggest diversity in cellular signaling pathways (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-08-22
    Description: A new family of protein kinase C-related genes has been identified in bovine, human, and rat genomes. The alpha-, beta-, and gamma-type protein kinase sequences are highly homologous, include a kinase domain, and potential calcium-binding sites, and they contain interspersed variable regions. The corresponding genes are located on distinct human chromosomes; the possibility of even greater genetic complexity of this gene family is suggested by Northern and Southern hybridization analyses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Coussens, L -- Parker, P J -- Rhee, L -- Yang-Feng, T L -- Chen, E -- Waterfield, M D -- Francke, U -- Ullrich, A -- New York, N.Y. -- Science. 1986 Aug 22;233(4766):859-66.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3755548" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cattle ; Chromosome Mapping ; Chromosomes, Human, 16-18 ; Dna ; Genes ; Humans ; Nucleic Acid Hybridization ; Protein Kinase C/*genetics ; Rats
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  • 86
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    Infectious mutants of HTLV-III with changes in the 3' region and markedly reduced cytopathic effects (1986)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1986-08-08
    Description: A variant of human T-lymphotropic virus type III (HTLV-III) is described that replicates but does not kill normal human T cells in vitro. This variant, designated X10-1, was derived from the genome of a cytopathic HTLV-III clone (pHXB2D) by excision of a 200-base pair segment in the 3' region of the virus, spanning the env and 3'-orf genes. Comparable variants with 55 to 109 base pairs deleted exclusively in 3'-orf produced, in contrast, virus that was extremely cytopathic. On the basis of these findings it is concluded that the 3'-orf gene is not required for cytopathogenicity or replication of HTLV-III. In addition, the results suggest that virus replication and cytotoxicity are not intrinsically coupled. Furthermore, since clone X10-1 retains the ability to trans-activate genes linked to the viral long terminal repeats, trans-activation per se is not responsible for T-cell killing by HTLV-III. These results also raise the possibility that the carboxyl terminus of the envelope gene of HTLV-III has a direct role in T-cell killing by this virus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fisher, A G -- Ratner, L -- Mitsuya, H -- Marselle, L M -- Harper, M E -- Broder, S -- Gallo, R C -- Wong-Staal, F -- New York, N.Y. -- Science. 1986 Aug 8;233(4764):655-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3014663" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*microbiology ; Cloning, Molecular ; Deltaretrovirus/*genetics/pathogenicity ; Humans ; Mutation ; Nucleic Acid Hybridization ; RNA, Viral/genetics ; T-Lymphocytes/microbiology
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  • 87
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    Trans-activator gene of HTLV-II induces IL-2 receptor and IL-2 cellular gene expression (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-05-16
    Description: The human T-lymphotropic viruses types I and II (HTLV-I and -II) have been etiologically linked with certain T-cell leukemias and lymphomas that characteristically display membrane receptors for interleukin-2. The relation of these viruses to this growth factor receptor has remained unexplained. It is demonstrated here that introduction of the trans-activator (tat) gene of HTLV-II into the Jurkat T-lymphoid cell line results in the induction of both interleukin-2 receptor and interleukin-2 gene expression. The coexpression of these cellular genes may play a role in the altering T-cell growth following retroviral infection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Greene, W C -- Leonard, W J -- Wano, Y -- Svetlik, P B -- Peffer, N J -- Sodroski, J G -- Rosen, C A -- Goh, W C -- Haseltine, W A -- 1R01CA369974-01AI/CA/NCI NIH HHS/ -- CA07580/CA/NCI NIH HHS/ -- CA40658/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1986 May 16;232(4752):877-80.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3010456" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; Deltaretrovirus/*genetics ; Gene Expression Regulation ; *Genes, Viral ; Humans ; Interleukin-2/biosynthesis/*genetics ; Leukemia/microbiology ; Nucleic Acid Hybridization ; RNA, Messenger/genetics ; Receptors, Immunologic/*genetics ; Receptors, Interleukin-2
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  • 88
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    Stable amplified DNA in drug-resistant Leishmania exists as extrachromosomal circles (1986)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1986-08-01
    Description: The relative stability of amplified DNA in drug-resistant Leishmania major was previously reported to be dependent on location, that is, unstable amplified DNA was extrachromosomal and stable amplified DNA was chromosomal. Leishmanial chromosomes have now been directly examined by means of orthogonal-field-alternation gel electrophoresis (OFAGE). The amplified DNA's in three resistant cell lines displayed unusual migration and were clearly extrachromosomal, regardless of whether the amplified DNA's were stable or unstable. Thus, contrary to conclusions from earlier studies of drug resistance in cultured animal cells, stable amplified DNA in Leishmania can be extrachromosomal. In addition, these amplified DNA's were shown to be circular on the basis of their resistance to exonuclease III digestion and their behavior on OFAGE. Their mobility was also greatly changed after treatment with topoisomerase II, suggesting that the amplified DNA's were either supercoiled or concatenated circles.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Garvey, E P -- Santi, D V -- New York, N.Y. -- Science. 1986 Aug 1;233(4763):535-40.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3726545" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; Chromosomes ; DNA/*genetics ; Drug Resistance, Microbial ; Electrophoresis ; *Extrachromosomal Inheritance ; Gene Amplification/drug effects ; Leishmania tropica/drug effects/*genetics ; Methotrexate/pharmacology ; Nucleic Acid Hybridization
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  • 89
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    The role of mononuclear phagocytes in HTLV-III/LAV infection (1986)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1986-07-11
    Description: Cells with properties characteristic of mononuclear phagocytes were evaluated for infectivity with five different isolates of the AIDS virus, HTLV-III/LAV. Mononuclear phagocytes cultured from brain and lung tissues of AIDS patients harbored the virus. In vitro-infected macrophages from the peripheral blood, bone marrow, or cord blood of healthy donors produced large quantities of virus. Virus production persisted for at least 40 days and was not dependent on host cell proliferation. Giant multinucleated cells were frequently observed in the macrophage cultures and numerous virus particles, often located within vacuole-like structures, were present in infected cells. The different virus isolates were compared for their ability to infect macrophages and T cells. Isolates from lung- and brain-derived macrophages had a significantly higher ability to infect macrophages than T cells. In contrast, the prototype HTLV-III beta showed a 10,000-fold lower ability to infect macrophages than T cells and virus production was one-tenth that in macrophage cultures infected with other isolates, indicating that a particular variant of HTLV-III/LAV may have a preferential tropism for macrophages or T cells. These results suggest that mononuclear phagocytes may serve as primary targets for infection and agents for virus dissemination and that these virus-infected cells may play a role in the pathogenesis of the disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gartner, S -- Markovits, P -- Markovitz, D M -- Kaplan, M H -- Gallo, R C -- Popovic, M -- New York, N.Y. -- Science. 1986 Jul 11;233(4760):215-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3014648" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*immunology ; Brain/cytology ; Cells, Cultured ; Child ; DNA, Viral/genetics ; Deltaretrovirus/isolation & purification ; Humans ; Lung/cytology ; Macrophages/physiology ; Nucleic Acid Hybridization ; Phagocytes/*physiology
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  • 90
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    Genomic analysis of the human B-lymphotropic virus (HBLV) (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-10-31
    Description: The human B-lymphotropic virus (HBLV) has a double-stranded DNA genome of greater than 110 kilobase pairs, which is consistent with its morphological classification as a herpesvirus. A 9000-base pair cloned probe of HBLV detected specific sequences in DNA and RNA of infected cells but did not hybridize to the genomic DNA of other human herpesviruses including the Epstein-Barr virus, human cytomegalovirus, herpes simplex type I, and varicella-zoster virus. Conversely, while probes obtained from each of the known human herpesvirus readily detected the homologous viral DNA, they did not hybridize to genomic HBLV DNA. This evidence, in addition to serological and morphological distinctions and the biological effects of this virus demonstrate that HBLV is a novel human herpesvirus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Josephs, S F -- Salahuddin, S Z -- Ablashi, D V -- Schachter, F -- Wong-Staal, F -- Gallo, R C -- New York, N.Y. -- Science. 1986 Oct 31;234(4776):601-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3020691" target="_blank"〉PubMed〈/a〉
    Keywords: Cytomegalovirus/genetics ; DNA, Viral/genetics ; Herpesviridae/*genetics ; Herpesvirus 2, Saimiriine/genetics ; Herpesvirus 3, Human/genetics ; Herpesvirus 4, Human/genetics ; Humans ; Nucleic Acid Hybridization ; Simplexvirus/genetics
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  • 91
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    Detection of AIDS virus in macrophages in brain tissue from AIDS patients with encephalopathy (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-09-05
    Description: One of the common neurological complications in patients with the acquired immune deficiency syndrome (AIDS) is a subacute encephalopathy with progressive dementia. By using the techniques of cocultivation for virus isolation, in situ hybridization, immunocytochemistry, and transmission electron microscopy, the identity of an important cell type that supports replication of the AIDS retrovirus in brain tissue was determined in two affected individuals. These cells were mononucleated and multinucleated macrophages that actively synthesized viral RNA and produced progeny virions in the brains of the patients. Infected brain macrophages may serve as a reservoir for virus and as a vehicle for viral dissemination in the infected host.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koenig, S -- Gendelman, H E -- Orenstein, J M -- Dal Canto, M C -- Pezeshkpour, G H -- Yungbluth, M -- Janotta, F -- Aksamit, A -- Martin, M A -- Fauci, A S -- New York, N.Y. -- Science. 1986 Sep 5;233(4768):1089-93.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3016903" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/complications/*microbiology/pathology ; Brain/microbiology/pathology ; Brain Diseases/etiology/*microbiology/pathology ; Deltaretrovirus/analysis/*isolation & purification ; Dementia/etiology/microbiology ; Demyelinating Diseases/microbiology/pathology ; Encephalitis/microbiology ; Humans ; Macrophages/*microbiology ; Microscopy, Electron ; Nucleic Acid Hybridization ; Papillomaviridae/isolation & purification ; Polyomaviridae ; RNA, Viral/analysis
    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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  • 92
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    The molecular biology of color vision (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-04-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Botstein, D -- New York, N.Y. -- Science. 1986 Apr 11;232(4747):142-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2937146" target="_blank"〉PubMed〈/a〉
    Keywords: Color Perception/*physiology ; Color Vision Defects/genetics/metabolism ; DNA/genetics ; DNA, Recombinant/metabolism ; Drosophila ; Eye Proteins/genetics ; Genes ; Humans ; Nucleic Acid Hybridization ; Rod Opsins
    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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  • 93
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    Rates of DNA sequence evolution differ between taxonomic groups (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-03-21
    Description: The mutation rates of DNA sequences during evolution can be estimated from interspecies DNA sequence differences by assaying changes that have little or no effect on the phenotype (neutral mutations). Examination of available measurements shows that rates of DNA change of different phylogenetic groups differ by a factor of 5. The slowest rates are observed for higher primates and some bird lineages, while faster rates are seen in rodents, sea urchins, and drosophila. The rate of DNA sequence change has decreased markedly during primate evolution. The contrast in rates of DNA sequence change is probably due to evolutionary variation and selection of biochemical mechanisms such as DNA replication or repair.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Britten, R J -- GM34031/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1986 Mar 21;231(4744):1393-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3082006" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Base Sequence ; *Biological Evolution ; Cricetinae ; DNA/*genetics ; DNA Repair ; DNA Replication ; Drosophila ; Gene Frequency ; Genes ; Genetics, Population ; Gorilla gorilla ; Haplorhini ; Humans ; Hylobates ; Mice ; Nucleic Acid Hybridization ; Pan troglodytes ; Phenotype ; Rabbits ; Rats ; Species Specificity
    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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  • 94
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    A common mechanism of chromosomal translocation in T- and B-cell neoplasia (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-11-21
    Description: The chromosomal breakpoint involved in the t(8;14)(q24;q11) chromosome translocation in the SKW-3 cell line, which directly involves the 3' flanking region of the c-myc gene, was cloned and sequenced. The breakpoint on chromosome 8 mapped to a position 3 kb 3' of c-myc while the chromosome 14 breakpoint occurred 36 kb 5' of the gene for the constant region of the alpha chain of the T-cell receptor (TCR). The translocation resulted in a precise rearrangement of sequences on chromosome 8 and what appears to be a functional J alpha segment on chromosome 14. Signal sequences for V-J joining occurred at the breakpoint positions on both chromosomes 14 and 8, suggesting that the translocation occurs during TCR gene rearrangement and that it is catalyzed by the enzymatic systems involved in V-J joining reactions. The involvement of c-myc in the translocation and the association of joining signals at the breakpoints provides a parallel to the situation observed in the translocations involving c-myc and the immunoglobulin loci in B-cell neoplasms and suggests that common mechanisms of translocation and oncogene deregulation are involved in B- and T-cell malignancies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Finger, L R -- Harvey, R C -- Moore, R C -- Showe, L C -- Croce, C M -- CA 09485/CA/NCI NIH HHS/ -- CA 39860/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1986 Nov 21;234(4779):982-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3490692" target="_blank"〉PubMed〈/a〉
    Keywords: *B-Lymphocytes ; Base Sequence ; Cell Line ; Chromosomes, Human, 13-15 ; Chromosomes, Human, 6-12 and X ; Humans ; Leukemia/*genetics ; Nucleic Acid Hybridization ; Proto-Oncogenes ; Receptors, Antigen, T-Cell/genetics ; *T-Lymphocytes ; *Translocation, Genetic
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 95
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    Genetic variation in HTLV-III/LAV over time in patients with AIDS or at risk for AIDS (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-06-20
    Description: In a study of genetic variation in the AIDS virus, HTLV-III/LAV, sequential virus isolates from persistently infected individuals were examined by Southern blot genomic analysis, molecular cloning, and nucleotide sequencing. Four to six virus isolates were obtained from each of three individuals over a 1-year or 2-year period. Changes were detected throughout the viral genomes and consisted of isolated and clustered nucleotide point mutations as well as short deletions or insertions. Results from genomic restriction mapping and nucleotide sequence comparisons indicated that viruses isolated sequentially had evolved in parallel from a common progenitor virus. The rate of evolution of HTLV-III/LAV was estimated to be at least 10(-3) nucleotide substitutions per site per year for the env gene and 10(-4) for the gag gene, values a millionfold greater than for most DNA genomes. Despite this relatively rapid rate of sequence divergence, virus isolates from any one patient were all much more related to each other than to viruses from other individuals. In view of the substantial heterogeneity among most independent HTLV-III/LAV isolates, the repeated isolation from a given individual of only highly related viruses raises the possibility that some type of interference mechanism may prevent simultaneous infection by more than one major genotypic form of the virus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hahn, B H -- Shaw, G M -- Taylor, M E -- Redfield, R R -- Markham, P D -- Salahuddin, S Z -- Wong-Staal, F -- Gallo, R C -- Parks, E S -- Parks, W P -- AI 23616-01/AI/NIAID NIH HHS/ -- AI 23854-01/AI/NIAID NIH HHS/ -- P30 CA 13148/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1986 Jun 20;232(4757):1548-53.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3012778" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*microbiology ; Amino Acid Sequence ; Base Sequence ; Chromosome Deletion ; DNA Restriction Enzymes ; DNA Transposable Elements ; Deltaretrovirus/*genetics/isolation & purification ; *Genetic Variation ; Humans ; Mutation ; Nucleic Acid Hybridization ; Risk
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 96
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    A novel human gene closely related to the abl proto-oncogene (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-12-19
    Description: A DNA sequence related to the abl proto-oncogene was identified in human placenta. Molecular cloning and nucleotide sequence analysis revealed two putative exons whose predicted amino acid sequence was most homologous to the corresponding sequences of c-abl and v-abl but was related to other tyrosine kinase genes as well. The new sequence was localized by in situ hybridization and somatic cell genetic analysis to human chromosome 1q24-25, which differs from the location of any previously identified tyrosine kinase gene. The detection of a novel 12-kb transcript by this gene in human normal and tumor cells establishes it as a new member of the tyrosine kinase family that is closely related to but distinct from c-abl.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kruh, G D -- King, C R -- Kraus, M H -- Popescu, N C -- Amsbaugh, S C -- McBride, W O -- Aaronson, S A -- New York, N.Y. -- Science. 1986 Dec 19;234(4783):1545-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3787260" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Chromosome Mapping ; Chromosomes, Human, Pair 1 ; Cloning, Molecular ; DNA/*genetics ; Exons ; Humans ; Nucleic Acid Hybridization ; *Oncogenes ; Placenta/analysis ; Protein-Tyrosine Kinases/*genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 97
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    Human endothelial cell growth factor: cloning, nucleotide sequence, and chromosome localization (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-08-01
    Description: Several of the endothelial cell polypeptide mitogens that have been described probably play a role in blood vessel homeostasis. Two overlapping complementary DNA clones encoding human endothelial cell growth factor (ECGF) were isolated from a human brain stem complementary DNA library. Southern blot analysis suggested that there is a single copy of the ECGF gene and that it maps to human chromosome 5 at bands 5q31.3 to 33.2 A 4.8-kilobase messenger RNA was present in human brain stem messenger RNA. The complete amino acid sequence of human ECGF was deduced from the nucleic acid sequence of these clones; it encompasses all the well-characterized acidic endothelial cell polypeptide mitogens described by several laboratories. The ECGF-encoding open reading frame is flanked by translation stop codons and provides no signal peptide or internal hydrophobic domain for the secretion of ECGF. This property is shared by human interleukin-1, which is approximately 30 percent homologous to ECGF.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jaye, M -- Howk, R -- Burgess, W -- Ricca, G A -- Chiu, I M -- Ravera, M W -- O'Brien, S J -- Modi, W S -- Maciag, T -- Drohan, W N -- AG04807/AG/NIA NIH HHS/ -- HL23348/HL/NHLBI NIH HHS/ -- HL35627/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1986 Aug 1;233(4763):541-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3523756" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Brain Stem/metabolism ; *Chromosome Mapping ; Cloning, Molecular ; DNA/genetics ; Endothelial Growth Factors ; Growth Substances/*genetics ; Humans ; Interleukin-1/genetics ; Liver/metabolism ; Nucleic Acid Hybridization ; RNA, Messenger/genetics
    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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  • 98
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    Regulation of pro-opiomelanocortin gene transcription in individual cell nuclei (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-12-05
    Description: A nonrepetitive complementary RNA probe specific for an intervening sequence of the rat pro-opiomelanocortin (POMC) gene primary transcript was used to analyze the hormonal regulation of POMC gene transcription in individual cell nuclei in the rat pituitary by in situ hybridization. This probe recognized only full-length POMC heterogeneous nuclear RNA, as verified by Northern blots of pituitary RNA. When pituitary sections were hybridized with this 3H-labeled POMC intron A probe, silver grains were predominantly localized over the nuclei of cells that expressed POMC in the anterior and intermediate lobes. Adrenalectomy increased both the average grain density over corticotroph nuclei and the number of cells in the anterior pituitary with significant numbers of silver grains over their nucleus. Dexamethasone administration to intact or adrenalectomized rats results in the rapid (within 30 minutes) disappearance of silver grains over the nuclei of corticotrophs in the anterior lobe, suggesting that POMC gene transcription had been inhibited. However, adrenalectomy or dexamethasone administration did not alter the silver grain density over nuclei of intermediate lobe melanotrophs. Thus, this in situ hybridization assay utilizing an intervening sequence-specific POMC probe can measure rapid physiological changes in POMC heterogeneous nuclear RNA in individual cell nuclei.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fremeau, R T Jr -- Lundblad, J R -- Pritchett, D B -- Wilcox, J N -- Roberts, J L -- AM27484/AM/NIADDK NIH HHS/ -- NS07786/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1986 Dec 5;234(4781):1265-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3775385" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Nucleus/metabolism ; DNA/genetics ; Dexamethasone/pharmacology ; Gene Expression Regulation/drug effects ; Genes ; Male ; Nucleic Acid Hybridization ; Pituitary Gland, Anterior/metabolism ; Pro-Opiomelanocortin/*biosynthesis/genetics ; RNA, Messenger/genetics ; Rats ; Rats, Inbred Strains ; 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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