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  • Articles  (18)
  • Phosphorylation  (18)
  • 1995-1999  (18)
  • 1998  (18)
  • Physics  (18)
  • 1
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    Mutation-specific functional impairments in distinct tau isoforms of hereditary FTDP-17 (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-12-04
    Description: Tau proteins aggregate as cytoplasmic inclusions in a number of neurodegenerative diseases, including Alzheimer's disease and hereditary frontotemporal dementia and parkinsonism linked to chromosome 17 (FTDP-17). Over 10 exonic and intronic mutations in the tau gene have been identified in about 20 FTDP-17 families. Analyses of soluble and insoluble tau proteins from brains of FTDP-17 patients indicated that different pathogenic mutations differentially altered distinct biochemical properties and stoichiometry of brain tau isoforms. Functional assays of recombinant tau proteins with different FTDP-17 missense mutations implicated all but one of these mutations in disease pathogenesis by reducing the ability of tau to bind microtubules and promote microtubule assembly.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hong, M -- Zhukareva, V -- Vogelsberg-Ragaglia, V -- Wszolek, Z -- Reed, L -- Miller, B I -- Geschwind, D H -- Bird, T D -- McKeel, D -- Goate, A -- Morris, J C -- Wilhelmsen, K C -- Schellenberg, G D -- Trojanowski, J Q -- Lee, V M -- New York, N.Y. -- Science. 1998 Dec 4;282(5395):1914-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Neurodegenerative Disease Research, Department of Pathology and Laboratory Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9836646" target="_blank"〉PubMed〈/a〉
    Keywords: Alternative Splicing ; Brain/*metabolism ; Cerebellum/metabolism ; Chromosomes, Human, Pair 17 ; Dementia/*genetics/metabolism ; Frontal Lobe/metabolism ; Humans ; Microtubules/*metabolism ; Mutation ; Mutation, Missense ; Parkinson Disease, Secondary/*genetics/metabolism ; Phosphorylation ; Protein Isoforms/chemistry/genetics/metabolism ; Recombinant Proteins/metabolism ; Solubility ; Syndrome ; tau Proteins/chemistry/*genetics/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
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    DARPP-32: regulator of the efficacy of dopaminergic neurotransmission (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-08-07
    Description: Dopaminergic neurons exert a major modulatory effect on the forebrain. Dopamine and adenosine 3',5'-monophosphate-regulated phosphoprotein (32 kilodaltons) (DARPP-32), which is enriched in all neurons that receive a dopaminergic input, is converted in response to dopamine into a potent protein phosphatase inhibitor. Mice generated to contain a targeted disruption of the DARPP-32 gene showed profound deficits in their molecular, electrophysiological, and behavioral responses to dopamine, drugs of abuse, and antipsychotic medication. The results show that DARPP-32 plays a central role in regulating the efficacy of dopaminergic neurotransmission.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fienberg, A A -- Hiroi, N -- Mermelstein, P G -- Song, W -- Snyder, G L -- Nishi, A -- Cheramy, A -- O'Callaghan, J P -- Miller, D B -- Cole, D G -- Corbett, R -- Haile, C N -- Cooper, D C -- Onn, S P -- Grace, A A -- Ouimet, C C -- White, F J -- Hyman, S E -- Surmeier, D J -- Girault, J -- Nestler, E J -- Greengard, P -- DA 08227/DA/NIDA NIH HHS/ -- DA10044/DA/NIDA NIH HHS/ -- F31 DA005794/DA/NIDA NIH HHS/ -- MH40899/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1998 Aug 7;281(5378):838-42.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, NY 10021, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9694658" target="_blank"〉PubMed〈/a〉
    Keywords: Amphetamines/pharmacology ; Animals ; Behavior, Animal/drug effects ; Calcium/metabolism ; Cocaine/pharmacology ; Corpus Striatum/metabolism ; Cyclic AMP-Dependent Protein Kinases/metabolism ; Dopamine/pharmacology/*physiology ; Dopamine Agents/pharmacology ; Dopamine and cAMP-Regulated Phosphoprotein 32 ; Female ; Gene Expression Regulation ; Gene Targeting ; Genes, fos ; Glutamic Acid/pharmacology ; Male ; Mice ; Mice, Inbred C57BL ; Nerve Tissue Proteins/genetics/*metabolism ; Neurons/*metabolism ; Phosphoprotein Phosphatases/metabolism ; *Phosphoproteins ; Phosphorylation ; Raclopride ; Receptors, Dopamine D1/metabolism ; Receptors, N-Methyl-D-Aspartate/metabolism ; Salicylamides/pharmacology ; Sodium-Potassium-Exchanging ATPase/metabolism ; *Synaptic Transmission ; gamma-Aminobutyric Acid/metabolism
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  • 3
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    Molecular basis of T cell inactivation by CTLA-4 (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-12-18
    Description: CTLA-4, a negative regulator of T cell function, was found to associate with the T cell receptor (TCR) complex zeta chain in primary T cells. The association of TCRzeta with CTLA-4, reconstituted in 293 transfectants, was enhanced by p56(lck)-induced tyrosine phosphorylation. Coexpression of the CTLA-4-associated tyrosine phosphatase, SHP-2, resulted in dephosphorylation of TCRzeta bound to CTLA-4 and abolished the p56(lck)-inducible TCRzeta-CTLA-4 interaction. Thus, CTLA-4 inhibits TCR signal transduction by binding to TCRzeta and inhibiting tyrosine phosphorylation after T cell activation. These findings have broad implications for the negative regulation of T cell function and T cell tolerance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, K M -- Chuang, E -- Griffin, M -- Khattri, R -- Hong, D K -- Zhang, W -- Straus, D -- Samelson, L E -- Thompson, C B -- Bluestone, J A -- P01 AI35294-6/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1998 Dec 18;282(5397):2263-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Ben May Institute for Cancer Research, and Committee on Immunology, University of Chicago, Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9856951" target="_blank"〉PubMed〈/a〉
    Keywords: Abatacept ; Animals ; Antigens, CD ; Antigens, Differentiation/*metabolism ; CTLA-4 Antigen ; Cell Line ; Cells, Cultured ; Humans ; *Immunoconjugates ; Intracellular Signaling Peptides and Proteins ; *Lymphocyte Activation ; Lymphocyte Specific Protein Tyrosine Kinase p56(lck)/genetics/metabolism ; Membrane Proteins/*metabolism ; Mice ; Mice, Inbred BALB C ; Models, Immunological ; Phosphorylation ; Phosphotyrosine/metabolism ; Protein Tyrosine Phosphatase, Non-Receptor Type 11 ; Protein Tyrosine Phosphatase, Non-Receptor Type 6 ; Protein Tyrosine Phosphatases/genetics/metabolism ; Receptors, Antigen, T-Cell/*metabolism ; Recombinant Fusion Proteins/metabolism ; SH2 Domain-Containing Protein Tyrosine Phosphatases ; *Signal Transduction ; T-Lymphocytes/*immunology ; Transfection ; src Homology Domains
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Activation of the ATM kinase by ionizing radiation and phosphorylation of p53 (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-09-11
    Description: The p53 tumor suppressor protein is activated and phosphorylated on serine-15 in response to various DNA damaging agents. The gene product mutated in ataxia telangiectasia, ATM, acts upstream of p53 in a signal transduction pathway initiated by ionizing radiation. Immunoprecipitated ATM had intrinsic protein kinase activity and phosphorylated p53 on serine-15 in a manganese-dependent manner. Ionizing radiation, but not ultraviolet radiation, rapidly enhanced this p53-directed kinase activity of endogenous ATM. These observations, along with the fact that phosphorylation of p53 on serine-15 in response to ionizing radiation is reduced in ataxia telangiectasia cells, suggest that ATM is a protein kinase that phosphorylates p53 in vivo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Canman, C E -- Lim, D S -- Cimprich, K A -- Taya, Y -- Tamai, K -- Sakaguchi, K -- Appella, E -- Kastan, M B -- Siliciano, J D -- CA71387/CA/NCI NIH HHS/ -- ES05777/ES/NIEHS NIH HHS/ -- New York, N.Y. -- Science. 1998 Sep 11;281(5383):1677-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Johns Hopkins School of Medicine, Oncology Center, Baltimore, MD 21205, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9733515" target="_blank"〉PubMed〈/a〉
    Keywords: Ataxia Telangiectasia Mutated Proteins ; Cell Cycle Proteins ; Cell Line ; DNA Damage ; DNA-Activated Protein Kinase ; *DNA-Binding Proteins ; Enzyme Activation ; Humans ; Lymphocytes/metabolism/radiation effects ; Mutation ; Nuclear Proteins ; Phosphatidylinositol 3-Kinases/metabolism ; Phosphorylation ; Phosphoserine/metabolism ; Protein Kinases/*metabolism ; Protein-Serine-Threonine Kinases/metabolism ; Proteins/genetics/*metabolism ; *Radiation, Ionizing ; Recombinant Fusion Proteins/metabolism ; Recombinant Proteins/metabolism ; Signal Transduction ; Transfection ; Tumor Suppressor Protein p53/*metabolism ; Tumor Suppressor Proteins ; Ultraviolet Rays
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  • 5
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    Rad53 FHA domain associated with phosphorylated Rad9 in the DNA damage checkpoint (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-07-10
    Description: The Rad53 protein kinase of Saccharomyces cerevisiae is required for checkpoints that prevent cell division in cells with damaged or incompletely replicated DNA. The Rad9 protein was phosphorylated in response to DNA damage, and phosphorylated Rad9 interacted with the COOH-terminal forkhead homology-associated (FHA) domain of Rad53. Inactivation of this domain abolished DNA damage-dependent Rad53 phosphorylation, G2/M cell cycle phase arrest, and increase of RNR3 transcription but did not affect replication inhibition-dependent Rad53 phosphorylation. Thus, Rad53 integrates DNA damage signals by coupling with phosphorylated Rad9. The hitherto uncharacterized FHA domain appears to be a modular protein-binding domain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, Z -- Hsiao, J -- Fay, D S -- Stern, D F -- New York, N.Y. -- Science. 1998 Jul 10;281(5374):272-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Yale University, New Haven, CT 06511, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9657725" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; *Cell Cycle Proteins ; Checkpoint Kinase 2 ; *DNA Damage ; DNA Replication/drug effects ; Fungal Proteins/*metabolism ; G2 Phase ; Hydroxyurea/pharmacology ; Methyl Methanesulfonate/pharmacology ; Mitosis ; Mutation ; Oligopeptides ; Peptides ; Phosphorylation ; Protein Kinases/chemistry/genetics/*metabolism ; *Protein-Serine-Threonine Kinases ; Saccharomyces cerevisiae/cytology/*metabolism ; *Saccharomyces cerevisiae Proteins ; Transcription, Genetic
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Protein kinase C isotypes controlled by phosphoinositide 3-kinase through the protein kinase PDK1 (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-09-25
    Description: Phosphorylation sites in members of the protein kinase A (PKA), PKG, and PKC kinase subfamily are conserved. Thus, the PKB kinase PDK1 may be responsible for the phosphorylation of PKC isotypes. PDK1 phosphorylated the activation loop sites of PKCzeta and PKCdelta in vitro and in a phosphoinositide 3-kinase (PI 3-kinase)-dependent manner in vivo in human embryonic kidney (293) cells. All members of the PKC family tested formed complexes with PDK1. PDK1-dependent phosphorylation of PKCdelta in vitro was stimulated by combined PKC and PDK1 activators. The activation loop phosphorylation of PKCdelta in response to serum stimulation of cells was PI 3-kinase-dependent and was enhanced by PDK1 coexpression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Le Good, J A -- Ziegler, W H -- Parekh, D B -- Alessi, D R -- Cohen, P -- Parker, P J -- New York, N.Y. -- Science. 1998 Sep 25;281(5385):2042-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Protein Phosphorylation Laboratory, Imperial Cancer Research Fund, 44 Lincoln's Inn Fields, London WC2A 3PX, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9748166" target="_blank"〉PubMed〈/a〉
    Keywords: 3-Phosphoinositide-Dependent Protein Kinases ; Binding Sites ; Cell Line ; Chromones/pharmacology ; Enzyme Activation ; Enzyme Inhibitors/pharmacology ; Humans ; Isoenzymes/*metabolism ; Morpholines/pharmacology ; Phosphatidylcholines/pharmacology ; Phosphatidylinositol 3-Kinases/*metabolism ; Phosphatidylinositol Phosphates ; Phosphatidylserines/pharmacology ; Phosphorylation ; Protein Kinase C/*metabolism ; Protein Kinase C beta ; Protein-Serine-Threonine Kinases/*metabolism ; Recombinant Proteins/metabolism ; Tetradecanoylphorbol Acetate/pharmacology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    Role of substrates and products of PI 3-kinase in regulating activation of Rac-related guanosine triphosphatases by Vav (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-02-07
    Description: Mitogen stimulation of cytoskeletal changes and c-jun amino-terminal kinases is mediated by Rac small guanine nucleotide-binding proteins. Vav, a guanosine diphosphate (GDP)-guanosine triphosphate (GTP) exchange factor for Rac that stimulates the exchange of bound GDP for GTP, bound to and was directly controlled by substrates and products of phosphoinositide (PI) 3-kinase. The PI 3-kinase substrate phosphatidylinositol-4,5-bisphosphate inhibited activation of Vav by the tyrosine kinase Lck, whereas the product phosphatidylinositol-3,4,5-trisphosphate enhanced phosphorylation and activation of Vav by Lck. Control of Vav in response to mitogens by the products of PI 3-kinase suggests a mechanism for Ras-dependent activation of Rac.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Han, J -- Luby-Phelps, K -- Das, B -- Shu, X -- Xia, Y -- Mosteller, R D -- Krishna, U M -- Falck, J R -- White, M A -- Broek, D -- CA50261/CA/NCI NIH HHS/ -- CA71443/CA/NCI NIH HHS/ -- GM31278/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1998 Jan 23;279(5350):558-60.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biology, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90033-0800, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9438848" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cell Line ; Enzyme Activation ; GTP Phosphohydrolases/*metabolism ; GTP-Binding Proteins/*metabolism ; Guanine Nucleotide Exchange Factors ; Guanosine Diphosphate/*metabolism ; Guanosine Triphosphate/metabolism ; Inositol 1,4,5-Trisphosphate/metabolism/pharmacology ; Lymphocyte Specific Protein Tyrosine Kinase p56(lck)/metabolism ; Mutagenesis, Site-Directed ; Oncogene Proteins/chemistry/*metabolism ; Phosphatidylinositol 3-Kinases/*metabolism ; Phosphatidylinositol 4,5-Diphosphate/metabolism/pharmacology ; Phosphatidylinositol Phosphates/metabolism/pharmacology ; Phosphatidylinositols/*metabolism/pharmacology ; Phosphorylation ; Proteins/metabolism ; Proto-Oncogene Proteins c-vav ; Rats ; rac GTP-Binding Proteins ; ras Guanine Nucleotide Exchange Factors
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  • 8
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    Proteolytic inactivation of MAP-kinase-kinase by anthrax lethal factor (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-05-23
    Description: Anthrax lethal toxin, produced by the bacterium Bacillus anthracis, is the major cause of death in animals infected with anthrax. One component of this toxin, lethal factor (LF), is suspected to be a metalloprotease, but no physiological substrates have been identified. Here it is shown that LF is a protease that cleaves the amino terminus of mitogen-activated protein kinase kinases 1 and 2 (MAPKK1 and MAPKK2) and that this cleavage inactivates MAPKK1 and inhibits the MAPK signal transduction pathway. The identification of a cleavage site for LF may facilitate the development of LF inhibitors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Duesbery, N S -- Webb, C P -- Leppla, S H -- Gordon, V M -- Klimpel, K R -- Copeland, T D -- Ahn, N G -- Oskarsson, M K -- Fukasawa, K -- Paull, K D -- Vande Woude, G F -- New York, N.Y. -- Science. 1998 May 1;280(5364):734-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Advanced BioScience Laboratories-Basic Research Program, National Cancer Institute-Frederick Cancer Research and Development Center, Post Office Box B, Frederick, MD 21702.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9563949" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antigens, Bacterial ; *Bacillus anthracis/enzymology ; Bacterial Toxins/metabolism/*toxicity ; Binding Sites ; Calcium-Calmodulin-Dependent Protein Kinases/antagonists & inhibitors/metabolism ; Cell Line, Transformed ; Enzyme Activation ; Enzyme Inhibitors/toxicity ; Humans ; MAP Kinase Kinase 1 ; MAP Kinase Kinase 2 ; Metalloendopeptidases/metabolism/toxicity ; Mice ; *Mitogen-Activated Protein Kinase Kinases ; Myelin Basic Protein/metabolism ; Oocytes/physiology ; Phosphorylation ; Protein-Serine-Threonine Kinases/*antagonists & ; inhibitors/chemistry/genetics/metabolism ; Protein-Tyrosine Kinases/*antagonists & inhibitors/chemistry/genetics/metabolism ; Recombinant Fusion Proteins/metabolism ; Sequence Deletion ; Signal Transduction ; Xenopus laevis
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  • 9
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    Protein kinase B kinases that mediate phosphatidylinositol 3,4,5-trisphosphate-dependent activation of protein kinase B (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-02-21
    Description: Protein kinase B (PKB) is activated in response to phosphoinositide 3-kinases and their lipid products phosphatidylinositol 3,4, 5-trisphosphate [PtdIns(3,4,5)P3] and PtdIns(3,4)P2 in the signaling pathways used by a wide variety of growth factors, antigens, and inflammatory stimuli. PKB is a direct target of these lipids, but this regulation is complex. The lipids can bind to the pleckstrin homologous domain of PKB, causing its translocation to the membrane, and also enable upstream, Thr308-directed kinases to phosphorylate and activate PKB. Four isoforms of these PKB kinases were purified from sheep brain. They bound PtdIns(3,4,5)P3 and associated with lipid vesicles containing it. These kinases contain an NH2-terminal catalytic domain and a COOH-terminal pleckstrin homologous domain, and their heterologous expression augments receptor activation of PKB, which suggests they are the primary signal transducers that enable PtdIns(3,4,5)P3 or PtdIns- (3,4)P2 to activate PKB and hence to control signaling pathways regulating cell survival, glucose uptake, and glycogen metabolism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stephens, L -- Anderson, K -- Stokoe, D -- Erdjument-Bromage, H -- Painter, G F -- Holmes, A B -- Gaffney, P R -- Reese, C B -- McCormick, F -- Tempst, P -- Coadwell, J -- Hawkins, P T -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1998 Jan 30;279(5351):710-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Inositide Laboratory, The Babraham Institute, Babraham, Cambridge CB2 4AT, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9445477" target="_blank"〉PubMed〈/a〉
    Keywords: 3-Phosphoinositide-Dependent Protein Kinases ; Alternative Splicing ; Amino Acid Sequence ; Animals ; Cell Line ; Cell Membrane/enzymology ; Cloning, Molecular ; DNA, Complementary ; Drosophila ; Drosophila Proteins ; Enzyme Activation ; Humans ; Liposomes/metabolism ; Molecular Sequence Data ; Open Reading Frames ; Phosphatidylinositol Phosphates/*metabolism ; Phosphorylation ; Platelet-Derived Growth Factor/pharmacology ; Protein-Serine-Threonine Kinases/chemistry/genetics/isolation & ; purification/*metabolism ; Proto-Oncogene Proteins/*metabolism ; Proto-Oncogene Proteins c-akt ; Rats ; Recombinant Proteins/metabolism ; Sheep ; *Signal Transduction
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  • 10
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    Uncoupling of nonreceptor tyrosine kinases from PLC-gamma1 in an SLP-76-deficient T cell (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-07-17
    Description: Activation of nonreceptor protein tyrosine kinases (PTKs) is essential for T cell receptor (TCR) responsiveness; however, the function of individual PTK substrates is often uncertain. A mutant T cell line was isolated that lacked expression of SLP-76 (SH2 domain-containing leukocyte protein of 76 kilodaltons), a hematopoietically expressed adaptor protein and PTK substrate. SLP-76 was not required for TCR-induced tyrosine phosphorylation of most proteins, but was required for optimal tyrosine phosphorylation and activation of phospholipase C-gamma1 (PLC-gamma1), as well as Ras pathway activation. TCR-inducible gene expression was dependent on SLP-76. Thus, coupling of TCR-regulated PTKs to downstream signaling pathways requires SLP-76.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yablonski, D -- Kuhne, M R -- Kadlecek, T -- Weiss, A -- CA72531/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1998 Jul 17;281(5375):413-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Howard Hughes Medical Institute, Box 0795, University of California, San Francisco, San Francisco, CA 94143-0795, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9665884" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptor Proteins, Signal Transducing ; Calcium/metabolism ; Calcium-Calmodulin-Dependent Protein Kinases/metabolism ; Carrier Proteins/metabolism ; Cell Line ; DNA-Binding Proteins/metabolism ; Enzyme Activation ; Gene Expression Regulation ; Humans ; Inositol Phosphates/metabolism ; Interleukin-2/genetics ; Isoenzymes/*metabolism ; Jurkat Cells ; *Membrane Proteins ; Mitogen-Activated Protein Kinase 1 ; NFATC Transcription Factors ; *Nuclear Proteins ; Phospholipase C gamma ; Phosphoproteins/metabolism/*physiology ; Phosphorylation ; Phosphotyrosine/metabolism ; Protein-Tyrosine Kinases/*metabolism ; Receptors, Antigen, T-Cell/*metabolism ; Signal Transduction ; T-Lymphocytes/enzymology/*metabolism ; Transcription Factors/metabolism ; Transcriptional Activation ; Transfection ; Type C Phospholipases/*metabolism ; ras Proteins/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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