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  • Transfection  (8)
  • American Association for the Advancement of Science (AAAS)  (8)
  • Oxford University Press
  • 2015-2019
  • 2005-2009  (1)
  • 1990-1994  (7)
  • 1930-1934
Collection
Keywords
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  • American Association for the Advancement of Science (AAAS)  (8)
  • Oxford University Press
Years
Year
  • 1
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    Expression of T cell antigen receptor heterodimers in a lipid-linked form (1990)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1990-08-10
    Description: The interaction of the T cell receptor for antigen (TCR) with its antigen-major histocompatibility complex ligand is difficult to study because both are cell surface multimers. The TCR consists of two chains (alpha and beta) that are complexed to the five or more nonpolymorphic CD3 polypeptides. A soluble form of the TCR was engineered by replacing the carboxyl termini of alpha and beta with signal sequences from lipid-linked proteins, making them susceptible to enzymatic cleavage. In this manner, TCR heterodimers can be expressed independently of the CD3 polypeptides and in significant quantities (0.5 milligram per week). This technique seems generalizable to biochemical and structural studies of many other cell surface molecules as well.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lin, A Y -- Devaux, B -- Green, A -- Sagerstrom, C -- Elliott, J F -- Davis, M M -- New York, N.Y. -- Science. 1990 Aug 10;249(4969):677-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Stanford University School of Medicine, CA 94305-5402.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1696397" target="_blank"〉PubMed〈/a〉
    Keywords: Alkaline Phosphatase/genetics ; Amino Acid Sequence ; Animals ; Antigens, CD3 ; Antigens, CD55 ; Antigens, Differentiation, T-Lymphocyte/genetics ; Cell Line ; Complement Inactivator Proteins/genetics ; Female ; Humans ; Macromolecular Substances ; Membrane Proteins/genetics ; Molecular Sequence Data ; Placenta/enzymology ; Pregnancy ; Protein Sorting Signals/genetics ; Receptors, Antigen, T-Cell/*genetics ; Transfection
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    The receptor for ciliary neurotrophic factor (1991)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1991-07-05
    Description: Although neurotrophic factors were originally isolated on the basis of their ability to support the survival of neurons, these molecules are now thought to influence many aspects of the development and maintenance of the nervous system. Identifying the receptors for these neurotrophic factors should aid in identifying the cells on which these factors act and in understanding their precise mechanisms of action. A "tagged-ligand panning" procedure was used to clone a receptor for ciliary neurotrophic factor (CNTF). This receptor is expressed exclusively within the nervous system and skeletal muscle. The CNTF receptor has a structure unrelated to the receptors utilized by the nerve growth factor family of neurotrophic molecules, but instead is most homologous to the receptor for a cytokine, interleukin-6. This similarity suggestes that the CNTF receptor, like the interleukin-6 receptor, requires a second, signal-transducing component. In contrast to all known receptors, the CNTF receptor is anchored to cell membranes by a glycosyl-phosphatidylinositol linkage.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Davis, S -- Aldrich, T H -- Valenzuela, D M -- Wong, V V -- Furth, M E -- Squinto, S P -- Yancopoulos, G D -- New York, N.Y. -- Science. 1991 Jul 5;253(5015):59-63.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Regeneron Pharmaceuticals, Inc., Tarrytown, NY 10591.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1648265" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Blotting, Northern ; Cell Line ; Cloning, Molecular ; Electrophoresis, Agar Gel ; Gene Expression ; Humans ; In Vitro Techniques ; Molecular Sequence Data ; Muscles/metabolism ; Nervous System/metabolism ; Neuroblastoma/metabolism ; Rats ; Receptor, Ciliary Neurotrophic Factor ; Receptors, Cell Surface/blood/*genetics ; Sequence Homology, Nucleic Acid ; Transfection
    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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  • 3
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    Invariant chain peptides in most HLA-DR molecules of an antigen-processing mutant (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-12-11
    Description: Class II major histocompatibility complexes bind peptides in an endosome-like compartment. When the class II null cell line 721.174 was transfected with class II DR3 genes, DR molecules were produced in normal amounts. However, the DR molecules were abnormally conformed and unstable because deletion of an antigen-processing gene had impaired intracellular formation of most class II-peptide complexes. Yet, 70 percent of the DR molecules still bore peptides, 80 percent of which were 21- to 24-amino acid fragments of the class II-associated invariant chain. These peptides were rare on DR3 from control cells. Thus, a defect in the main antigen-processing pathway revealed a process in which DR molecules bind long peptides derived from proteins present in the same compartment.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sette, A -- Ceman, S -- Kubo, R T -- Sakaguchi, K -- Appella, E -- Hunt, D F -- Davis, T A -- Michel, H -- Shabanowitz, J -- Rudersdorf, R -- AI15486/AI/NIAID NIH HHS/ -- AI18634/AI/NIAID NIH HHS/ -- GM37537/GM/NIGMS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1992 Dec 11;258(5089):1801-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Genetics, University of Wisconsin, Madison 53706.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1465617" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites ; Cell Line ; Gene Deletion ; *Genes, MHC Class II ; HLA-DR Antigens/*genetics/*metabolism ; HLA-DR3 Antigen/*genetics/metabolism ; Humans ; Kinetics ; Macromolecular Substances ; Molecular Sequence Data ; Peptides/*metabolism ; Transfection
    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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  • 4
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    Acquisition of myogenic specificity by replacement of three amino acid residues from MyoD into E12 (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-05-15
    Description: The basic helix-loop-helix (bHLH) protein MyoD is a transcription factor that is important for the induction of the myogenic phenotype. The DNA binding basic region (13 amino acids) is necessary for recognition of the consensus MyoD binding site, for transcriptional activation, and for conversion of fibroblasts to muscle. In contrast, the non-tissue-specific bHLH protein E12 can bind to the MyoD binding site but does not induce myogenesis. Here, it is shown that only two amino acids in the MyoD basic region and a single amino acid from the junction, which separates the basic region and helix 1, are sufficient for myogenic specificity when substituted into the corresponding region of E12. These findings suggest that the recognition of particular determinants in the basic region is required for conversion of fibroblasts to muscle.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Davis, R L -- Weintraub, H -- New York, N.Y. -- Science. 1992 May 15;256(5059):1027-30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute Laboratory, Fred Hutchinson Cancer Research Center, Seattle, WA 98104.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1317057" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Binding Sites ; Cell Differentiation ; Cell Line ; DNA/metabolism ; DNA Probes ; DNA-Binding Proteins/chemistry/metabolism/pharmacology ; Fibroblasts/cytology ; Fluorescent Antibody Technique ; Molecular Sequence Data ; Muscle Proteins/chemistry/genetics/*physiology ; Muscles/*cytology ; MyoD Protein ; Protein Conformation ; Structure-Activity Relationship ; Transcription Factors/chemistry/metabolism/pharmacology ; Transfection
    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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  • 5
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    Human IRGM induces autophagy to eliminate intracellular mycobacteria (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-08-05
    Description: Immunity-related p47 guanosine triphosphatases (IRG) play a role in defense against intracellular pathogens. We found that the murine Irgm1 (LRG-47) guanosine triphosphatase induced autophagy and generated large autolysosomal organelles as a mechanism for the elimination of intracellular Mycobacterium tuberculosis. We also identified a function for a human IRG protein in the control of intracellular pathogens and report that the human Irgm1 ortholog, IRGM, plays a role in autophagy and in the reduction of intracellular bacillary load.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Singh, Sudha B -- Davis, Alexander S -- Taylor, Gregory A -- Deretic, Vojo -- AI42999/AI/NIAID NIH HHS/ -- AI45148/AI/NIAID NIH HHS/ -- AI57831/AI/NIAID NIH HHS/ -- R01 AI057831/AI/NIAID NIH HHS/ -- T32 AI007538/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2006 Sep 8;313(5792):1438-41. Epub 2006 Aug 3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics and Microbiology, University of New Mexico School of Medicine, Albuquerque, NM 87131, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16888103" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Autophagy ; Cell Line ; Cytosol/metabolism ; GTP-Binding Proteins/genetics/*physiology ; HeLa Cells ; Humans ; Interferon-gamma/immunology ; Lysosomes/metabolism/microbiology/ultrastructure ; Macrophages/*immunology/*microbiology ; Mice ; Microbial Viability ; Microtubule-Associated Proteins/metabolism ; Mycobacterium bovis/*immunology/physiology ; Phagosomes/metabolism/microbiology/*ultrastructure ; RNA, Small Interfering ; Transfection ; Vacuoles/metabolism/ultrastructure
    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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  • 6
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    Differential activation of ERK and JNK mitogen-activated protein kinases by Raf-1 and MEKK (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-09
    Description: Growth factors activate mitogen-activated protein kinases (MAPKs), including extracellular signal-regulated kinases (ERKs) and Jun kinases (JNKs). Although the signaling cascade from growth factor receptors to ERKs is relatively well understood, the pathway leading to JNK activation is more obscure. Activation of JNK by epidermal growth factor (EGF) or nerve growth factor (NGF) was dependent on H-Ras activation, whereas JNK activation by tumor necrosis factor alpha (TNF-alpha) was Ras-independent. Ras activates two protein kinases, Raf-1 and MEK (MAPK, or ERK, kinase) kinase (MEKK). Raf-1 contributes directly to ERK activation but not to JNK activation, whereas MEKK participated in JNK activation but caused ERK activation only after overexpression. These results demonstrate the existence of two distinct Ras-dependent MAPK cascades--one initiated by Raf-1 leading to ERK activation, and the other initiated by MEKK leading to JNK activation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Minden, A -- Lin, A -- McMahon, M -- Lange-Carter, C -- Derijard, B -- Davis, R J -- Johnson, G L -- Karin, M -- New York, N.Y. -- Science. 1994 Dec 9;266(5191):1719-23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, School of Medicine, University of California at San Diego, La Jolla 92093-0636.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7992057" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Animals ; Calcium-Calmodulin-Dependent Protein Kinases/*metabolism ; Enzyme Activation/drug effects ; Epidermal Growth Factor/pharmacology ; Genes, ras ; HeLa Cells ; Humans ; JNK Mitogen-Activated Protein Kinases ; *MAP Kinase Kinase Kinase 1 ; Mice ; Mitogen-Activated Protein Kinase 1 ; *Mitogen-Activated Protein Kinases ; Nerve Growth Factors/pharmacology ; PC12 Cells ; Protein-Serine-Threonine Kinases/*metabolism ; Protein-Tyrosine Kinases/*metabolism ; Proto-Oncogene Proteins/*metabolism ; Proto-Oncogene Proteins c-raf ; Rats ; Transfection ; Tumor Necrosis Factor-alpha/pharmacology ; ras Proteins/*pharmacology
    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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  • 7
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    Ligands for EPH-related receptor tyrosine kinases that require membrane attachment or clustering for activity (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-11-04
    Description: The EPH-related transmembrane tyrosine kinases constitute the largest known family of receptor-like tyrosine kinases, with many members displaying specific patterns of expression in the developing and adult nervous system. A family of cell surface-bound ligands exhibiting distinct, but overlapping, specificities for these EPH-related kinases was identified. These ligands were unable to act as conventional soluble factors. However, they did function when presented in membrane-bound form, suggesting that they require direct cell-to-cell contact to activate their receptors. Membrane attachment may serve to facilitate ligand dimerization or aggregation, because antibody-mediated clustering activated previously inactive soluble forms of these ligands.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Davis, S -- Gale, N W -- Aldrich, T H -- Maisonpierre, P C -- Lhotak, V -- Pawson, T -- Goldfarb, M -- Yancopoulos, G D -- New York, N.Y. -- Science. 1994 Nov 4;266(5186):816-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Regeneron Pharmaceuticals, Tarrytown, NY 10591.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7973638" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cell Line ; Cell Membrane/*metabolism ; *DNA-Binding Proteins ; Ephrin-A1 ; Ephrin-B1 ; Humans ; Ligands ; Membrane Proteins/chemistry/*metabolism ; Molecular Sequence Data ; Neurons/metabolism ; Phosphorylation ; Proteins/chemistry/*metabolism ; *Proto-Oncogene Proteins ; Receptor Protein-Tyrosine Kinases/*metabolism ; *Receptor, EphA5 ; Recombinant Fusion Proteins/metabolism ; Retroviridae Proteins, Oncogenic/*metabolism ; Solubility ; *Transcription Factors ; Transfection ; Tumor Cells, Cultured ; ets-Domain Protein Elk-1
    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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  • 8
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    PAC-1: a mitogen-induced nuclear protein tyrosine phosphatase (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-03-19
    Description: Tyrosine phosphorylation of proteins is required for signal transduction in cells and for growth regulation. A mitogen-induced gene (PAC-1) has been cloned from human T cells and encodes a 32-kilodalton protein that contains a sequence that defines the enzymatic site of known protein phosphotyrosine phosphatases (PTPases). Other than this sequence, PAC-1 is different from several other known related PTPases exemplified by PTP-1b. PAC-1 is similar to a phosphatase induced by mitogens or heat shock in fibroblasts, a yeast gene, and a vaccinia virus-encoded serine-tyrosine phosphatase (VH1). PAC-1 was predominantly expressed in hematopoietic tissues and localized to the nucleus in transfected COS-7 cells and in mitogen-stimulated T cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rohan, P J -- Davis, P -- Moskaluk, C A -- Kearns, M -- Krutzsch, H -- Siebenlist, U -- Kelly, K -- New York, N.Y. -- Science. 1993 Mar 19;259(5102):1763-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Pathology, National Cancer Institute, NIH, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7681221" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Blotting, Northern ; Cell Line ; Cell Nucleus/enzymology ; Conserved Sequence ; Cytoplasm/enzymology ; Dual Specificity Phosphatase 2 ; Fluorescent Antibody Technique ; Humans ; Immunosorbent Techniques ; Mice ; Mitogens/*pharmacology ; Molecular Sequence Data ; Organ Specificity ; Protein Phosphatase 2 ; Protein Tyrosine Phosphatases/chemistry/*genetics ; RNA/analysis ; Sequence Homology, Amino Acid ; Signal Transduction/physiology ; T-Lymphocytes/enzymology ; Transfection
    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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