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  • 1
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    Enhanced morphine analgesia in mice lacking beta-arrestin 2 (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-01-05
    Description: The ability of morphine to alleviate pain is mediated through a heterotrimeric guanine nucleotide binding protein (G protein)-coupled heptahelical receptor (GPCR), the mu opioid receptor (muOR). The efficiency of GPCR signaling is tightly regulated and ultimately limited by the coordinated phosphorylation of the receptors by specific GPCR kinases and the subsequent interaction of the phosphorylated receptors with beta-arrestin 1 and beta-arrestin 2. Functional deletion of the beta-arrestin 2 gene in mice resulted in remarkable potentiation and prolongation of the analgesic effect of morphine, suggesting that muOR desensitization was impaired. These results provide evidence in vivo for the physiological importance of beta-arrestin 2 in regulating the function of a specific GPCR, the muOR. Moreover, they suggest that inhibition of beta-arrestin 2 function might lead to enhanced analgesic effectiveness of morphine and provide potential new avenues for the study and treatment of pain, narcotic tolerance, and dependence.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bohn, L M -- Lefkowitz, R J -- Gainetdinov, R R -- Peppel, K -- Caron, M G -- Lin, F T -- F32 DA006023/DA/NIDA NIH HHS/ -- HL16037/HL/NHLBI NIH HHS/ -- NS 19576/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1999 Dec 24;286(5449):2495-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute Laboratories, Departments of Cell Biology and Medicine, Duke University Medical Center, Durham, NC 27710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10617462" target="_blank"〉PubMed〈/a〉
    Keywords: Analgesia ; Analgesics, Opioid/administration & dosage/metabolism/*pharmacology ; Animals ; Arrestins/genetics/*physiology ; Binding Sites ; Body Temperature/drug effects ; Brain/metabolism ; Enkephalin, Ala(2)-MePhe(4)-Gly(5)-/pharmacology ; GTP-Binding Proteins/metabolism ; Guanosine 5'-O-(3-Thiotriphosphate)/metabolism ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Morphine/administration & dosage/metabolism/*pharmacology ; Naloxone/metabolism/pharmacology ; Narcotic Antagonists/metabolism/pharmacology ; Pain Measurement ; Pain Threshold ; Phosphorylation ; Receptors, Opioid, mu/*metabolism ; Signal Transduction
    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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    Beta-arrestin-dependent formation of beta2 adrenergic receptor-Src protein kinase complexes (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-01-29
    Description: The Ras-dependent activation of mitogen-activated protein (MAP) kinase pathways by many receptors coupled to heterotrimeric guanine nucleotide binding proteins (G proteins) requires the activation of Src family tyrosine kinases. Stimulation of beta2 adrenergic receptors resulted in the assembly of a protein complex containing activated c-Src and the receptor. Src recruitment was mediated by beta-arrestin, which functions as an adapter protein, binding both c-Src and the agonist-occupied receptor. beta-Arrestin 1 mutants, impaired either in c-Src binding or in the ability to target receptors to clathrin-coated pits, acted as dominant negative inhibitors of beta2 adrenergic receptor-mediated activation of the MAP kinases Erk1 and Erk2. These data suggest that beta-arrestin binding, which terminates receptor-G protein coupling, also initiates a second wave of signal transduction in which the "desensitized" receptor functions as a critical structural component of a mitogenic signaling complex.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Luttrell, L M -- Ferguson, S S -- Daaka, Y -- Miller, W E -- Maudsley, S -- Della Rocca, G J -- Lin, F -- Kawakatsu, H -- Owada, K -- Luttrell, D K -- Caron, M G -- Lefkowitz, R J -- DK02352/DK/NIDDK NIH HHS/ -- DK55524/DK/NIDDK NIH HHS/ -- HL16037/HL/NHLBI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1999 Jan 29;283(5402):655-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Medicine, Duke University Medical Center, Durham, NC 27710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9924018" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenergic beta-Agonists/metabolism/pharmacology ; Animals ; Arrestins/genetics/*metabolism ; Calcium-Calmodulin-Dependent Protein Kinases/metabolism ; Cell Line ; Cell Membrane/metabolism ; Enzyme Activation ; GTP-Binding Proteins/metabolism ; Humans ; Isoproterenol/metabolism/pharmacology ; Mitogen-Activated Protein Kinase 1 ; Mitogen-Activated Protein Kinase 3 ; *Mitogen-Activated Protein Kinases ; Models, Biological ; Phosphorylation ; Point Mutation ; Precipitin Tests ; Proto-Oncogene Proteins pp60(c-src)/*metabolism ; Receptor Cross-Talk ; Receptors, Adrenergic, beta-2/*metabolism ; Receptors, Cell Surface/metabolism ; *Signal Transduction ; Transfection ; src Homology Domains
    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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    Role of serotonin in the paradoxical calming effect of psychostimulants on hyperactivity (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-01-15
    Description: The mechanism by which psychostimulants act as calming agents in humans with attention-deficit hyperactivity disorder (ADHD) or hyperkinetic disorder is currently unknown. Mice lacking the gene encoding the plasma membrane dopamine transporter (DAT) have elevated dopaminergic tone and are hyperactive. This activity was exacerbated by exposure to a novel environment. Additionally, these mice were impaired in spatial cognitive function, and they showed a decrease in locomotion in response to psychostimulants. This paradoxical calming effect of psychostimulants depended on serotonergic neurotransmission. The parallels between the DAT knockout mice and individuals with ADHD suggest that common mechanisms may underlie some of their behaviors and responses to psychostimulants.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gainetdinov, R R -- Wetsel, W C -- Jones, S R -- Levin, E D -- Jaber, M -- Caron, M G -- MH-40159/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1999 Jan 15;283(5400):397-401.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute Laboratories, Department of Cell Biology, Duke University Medical Center, Durham, NC 27710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9888856" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Attention Deficit Disorder with Hyperactivity/drug ; therapy/physiopathology/psychology ; Behavior, Animal/drug effects ; Carrier Proteins/antagonists & inhibitors/drug effects/genetics/metabolism ; Central Nervous System Stimulants/*pharmacology ; Corpus Striatum/*metabolism ; Dopamine/metabolism/physiology ; Dopamine Plasma Membrane Transport Proteins ; Fluoxetine/pharmacology ; Humans ; Hyperkinesis/*drug therapy/physiopathology/psychology ; Maze Learning ; Membrane Glycoproteins/drug effects/metabolism ; *Membrane Transport Proteins ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Motor Activity/drug effects ; *Nerve Tissue Proteins ; Norepinephrine Plasma Membrane Transport Proteins ; Serotonin/metabolism/*physiology ; Serotonin Plasma Membrane Transport Proteins ; Serotonin Uptake Inhibitors/pharmacology ; *Symporters ; *Synaptic Transmission
    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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    Role of the sphingosine-1-phosphate receptor EDG-1 in PDGF-induced cell motility (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-03-07
    Description: EDG-1 is a heterotrimeric guanine nucleotide binding protein-coupled receptor (GPCR) for sphingosine-1-phosphate (SPP). Cell migration toward platelet-derived growth factor (PDGF), which stimulates sphingosine kinase and increases intracellular SPP, was dependent on expression of EDG-1. Deletion of edg-1 or inhibition of sphingosine kinase suppressed chemotaxis toward PDGF and also activation of the small guanosine triphosphatase Rac, which is essential for protrusion of lamellipodia and forward movement. Moreover, PDGF activated EDG-1, as measured by translocation of beta-arrestin and phosphorylation of EDG-1. Our results reveal a role for receptor cross-communication in which activation of a GPCR by a receptor tyrosine kinase is critical for cell motility.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hobson, J P -- Rosenfeldt, H M -- Barak, L S -- Olivera, A -- Poulton, S -- Caron, M G -- Milstien, S -- Spiegel, S -- CA61774/CA/NCI NIH HHS/ -- GM43880/GM/NIGMS NIH HHS/ -- HL-61365/HL/NHLBI NIH HHS/ -- NS19576/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2001 Mar 2;291(5509):1800-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biology, Georgetown University Medical Center, Washington, DC 20007, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11230698" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arrestins/metabolism ; Cell Line ; Cell Membrane/metabolism ; Cells, Cultured ; *Chemotaxis/drug effects ; Gene Deletion ; Humans ; Immediate-Early Proteins/genetics/*metabolism ; *Lysophospholipids ; Mice ; Muscle, Smooth, Vascular/cytology/metabolism ; Phosphorylation ; Phosphotransferases (Alcohol Group Acceptor)/antagonists & inhibitors/metabolism ; Platelet-Derived Growth Factor/metabolism/*pharmacology ; Proto-Oncogene Proteins c-sis ; Receptor Cross-Talk ; *Receptors, Cell Surface ; *Receptors, G-Protein-Coupled ; Receptors, Lysophospholipid ; Receptors, Platelet-Derived Growth Factor/metabolism ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Sphingosine/*analogs & derivatives/*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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    Signal transduction. Bringing channels closer to the action! (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-07-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Laporte, S A -- Oakley, R H -- Caron, M G -- New York, N.Y. -- Science. 2001 Jul 6;293(5527):62-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute Laboratories, Departments of Cell Biology and Medicine, Duke University Medical Center, Durham, NC 27710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11441172" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenergic beta-2 Receptor Agonists ; Albuterol/pharmacology ; Animals ; Calcium Channels, L-Type/*metabolism ; Cyclic AMP/metabolism ; Cyclic AMP-Dependent Protein Kinases/metabolism ; Heterotrimeric GTP-Binding Proteins/metabolism ; Hippocampus ; Isoproterenol/pharmacology ; Ligands ; Macromolecular Substances ; Neurons/drug effects/enzymology/metabolism ; Phosphorylation ; Protein Subunits ; Rats ; Receptors, Adrenergic, beta-2/*metabolism ; *Signal Transduction/drug effects
    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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    beta-Arrestin: a protein that regulates beta-adrenergic receptor function (1990)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1990-06-22
    Description: Homologous or agonist-specific desensitization of beta-adrenergic receptors is thought to be mediated by a specific kinase, the beta-adrenergic receptor kinase (beta ARK). However, recent data suggest that a cofactor is required for this kinase to inhibit receptor function. The complementary DNA for such a cofactor was cloned and found to encode a 418-amino acid protein homologous to the retinal protein arrestin. The protein, termed beta-arrestin, was expressed and partially purified. It inhibited the signaling function of beta ARK-phosphorylated beta-adrenergic receptors by more than 75 percent, but not that of rhodopsin. It is proposed that beta-arrestin in concert with beta ARK effects homologous desensitization of beta-adrenergic receptors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lohse, M J -- Benovic, J L -- Codina, J -- Caron, M G -- Lefkowitz, R J -- DK19318/DK/NIDDK NIH HHS/ -- HL16037/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1990 Jun 22;248(4962):1547-50.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Medicine, Biochemistry and Cell Biology, Durham, NC 27710.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2163110" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antigens/*genetics/isolation & purification/pharmacology ; Arrestin ; Blotting, Northern ; Chromatography, Ion Exchange ; Cloning, Molecular ; *Cyclic AMP-Dependent Protein Kinases ; DNA/genetics ; Eye Proteins/*genetics/isolation & purification/pharmacology ; Gene Expression Regulation ; Molecular Sequence Data ; Phosphodiesterase Inhibitors/*pharmacology ; Phosphorylation ; Protein Kinases/*pharmacology ; RNA, Messenger/analysis ; Receptors, Adrenergic, beta/*drug effects/physiology ; Transfection ; beta-Adrenergic Receptor Kinases
    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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    Role of beta gamma subunits of G proteins in targeting the beta-adrenergic receptor kinase to membrane-bound receptors (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-08-28
    Description: The rate and extent of the agonist-dependent phosphorylation of beta 2-adrenergic receptors and rhodopsin by beta-adrenergic receptor kinase (beta ARK) are markedly enhanced on addition of G protein beta gamma subunits. With a model peptide substrate it was demonstrated that direct activation of the kinase could not account for this effect. G protein beta gamma subunits were shown to interact directly with the COOH-terminal region of beta ARK, and formation of this beta ARK-beta gamma complex resulted in receptor-facilitated membrane localization of the enzyme. The beta gamma subunits of transducin were less effective at both enhancing the rate of receptor phosphorylation and binding to the COOH-terminus of beta ARK, suggesting that the enzyme preferentially binds specific beta gamma complexes. The beta gamma-mediated membrane localization of beta ARK serves to intimately link receptor activation to beta ARK-mediated desensitization.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pitcher, J A -- Inglese, J -- Higgins, J B -- Arriza, J L -- Casey, P J -- Kim, C -- Benovic, J L -- Kwatra, M M -- Caron, M G -- Lefkowitz, R J -- 4R37-HL16039/HL/NHLBI NIH HHS/ -- GM 44944/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1992 Aug 28;257(5074):1264-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Research Institute, Department of Medicine, Duke University Medical Center, Durham, NC 27710.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1325672" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cattle ; *Cyclic AMP-Dependent Protein Kinases ; Dose-Response Relationship, Drug ; Escherichia coli ; GTP-Binding Proteins/*physiology ; Gene Expression Regulation/drug effects ; In Vitro Techniques ; Molecular Sequence Data ; Phosphorylation ; Protein Kinases/*pharmacology ; Protein Processing, Post-Translational ; Receptors, Adrenergic, beta/*drug effects/*metabolism ; Recombinant Fusion Proteins ; Rhodopsin/metabolism ; Time Factors ; Virulence Factors, Bordetella/pharmacology ; beta-Adrenergic Receptor Kinases
    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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  • 8
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    Control of yeast mating signal transduction by a mammalian beta 2-adrenergic receptor and Gs alpha subunit (1990)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1990-10-05
    Description: To facilitate functional and mechanistic studies of receptor-G protein interactions, [corrected] the human beta 2-adrenergic receptor (h beta-AR) has been expressed in Saccharomyces cerevisiae. This was achieved by placing a modified h beta-AR gene under control of the galactose-inducible GAL1 promoter. After induction by galactose, functional h beta-AR was expressed at a concentration several hundred times as great as that found in any human tissue. As determined from competitive ligand binding experiments, h beta-AR expressed in yeast displayed characteristic affinities, specificity, and stereoselectivity. Partial activation of the yeast pheromone response pathway by beta-adrenergic receptor agonists was achieved in cells coexpressing h beta-AR and a mammalian G protein (Gs) alpha subunit-demonstrating that these components can couple to each other and to downstream effectors when expressed in yeast. This in vivo reconstitution system provides a new approach for examining ligand binding and G protein coupling to cell surface receptors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉King, K -- Dohlman, H G -- Thorner, J -- Caron, M G -- Lefkowitz, R J -- GM21841/GM/NIGMS NIH HHS/ -- HL16037/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1990 Oct 5;250(4977):121-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine (Cardiology), Howard Hughes Medical Institute, Duke University Medical Center, Durham, NC 27710.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2171146" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Cell Membrane/physiology ; GTP-Binding Proteins/genetics/*physiology ; Gene Expression ; Humans ; Iodocyanopindolol ; Kinetics ; Macromolecular Substances ; Molecular Sequence Data ; Pindolol/analogs & derivatives/metabolism ; Plasmids ; Promoter Regions, Genetic ; Receptors, Adrenergic, beta/genetics/metabolism/*physiology ; Recombinant Fusion Proteins/metabolism ; Restriction Mapping ; Saccharomyces cerevisiae/genetics/*physiology ; *Signal Transduction
    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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  • 9
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    Dishevelled 2 recruits beta-arrestin 2 to mediate Wnt5A-stimulated endocytosis of Frizzled 4 (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-09-06
    Description: Wnt proteins, regulators of development in many organisms, bind to seven transmembrane-spanning (7TMS) receptors called frizzleds, thereby recruiting the cytoplasmic molecule dishevelled (Dvl) to the plasma membrane.Frizzled-mediated endocytosis of Wg (a Drosophila Wnt protein) and lysosomal degradation may regulate the formation of morphogen gradients. Endocytosis of Frizzled 4 (Fz4) in human embryonic kidney 293 cells was dependent on added Wnt5A protein and was accomplished by the multifunctional adaptor protein beta-arrestin 2 (betaarr2), which was recruited to Fz4 by binding to phosphorylated Dvl2. These findings provide a previously unrecognized mechanism for receptor recruitment of beta-arrestin and demonstrate that Dvl plays an important role in the endocytosis of frizzled, as well as in promoting signaling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Wei -- ten Berge, Derk -- Brown, Jeff -- Ahn, Seungkirl -- Hu, Liaoyuan A -- Miller, William E -- Caron, Marc G -- Barak, Larry S -- Nusse, Roel -- Lefkowitz, Robert J -- HL 16037/HL/NHLBI NIH HHS/ -- HL 61365/HL/NHLBI NIH HHS/ -- NS 19576/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2003 Sep 5;301(5638):1391-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Departments of Medicine and Biochemistry, Duke University Medical Center, Durham, NC 27710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12958364" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing ; Animals ; Arrestins/genetics/*metabolism ; Cell Line ; Cell Membrane/metabolism ; Clathrin/metabolism ; Cytoplasm/metabolism ; *Endocytosis ; Frizzled Receptors ; Humans ; Mice ; Phosphoproteins/metabolism ; Phosphorylation ; Protein Kinase C/antagonists & inhibitors/metabolism ; Proteins/genetics/*metabolism ; Proto-Oncogene Proteins/*metabolism/pharmacology ; RNA, Small Interfering ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Wnt Proteins
    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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  • 10
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    Beta-arrestin 2 regulates zebrafish development through the hedgehog signaling pathway (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2004-12-25
    Description: beta-arrestins are multifunctional proteins that act as scaffolds and transducers of intracellular signals from heptahelical transmembrane-spanning receptors (7TMR). Hedgehog (Hh) signaling, which uses the putative 7TMR, Smoothened, is established as a fundamental pathway in development, and unregulated Hh signaling is associated with certain malignancies. Here, we show that the functional knockdown of beta-arrestin 2 in zebrafish embryos recapitulates the many phenotypes of Hh pathway mutants. Expression of wild-type beta-arrestin 2, or constitutive activation of the Hh pathway downstream of Smoothened, rescues the phenotypes caused by beta-arrestin 2 deficiency. These results suggest that a functional interaction between beta-arrestin 2 and Smoothened may be critical to regulate Hh signaling in zebrafish development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilbanks, Alyson M -- Fralish, Gregory B -- Kirby, Margaret L -- Barak, Larry S -- Li, Yin-Xiong -- Caron, Marc G -- GM069086-01/GM/NIGMS NIH HHS/ -- HL36059/HL/NHLBI NIH HHS/ -- HL61365/HL/NHLBI NIH HHS/ -- NS19576/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2004 Dec 24;306(5705):2264-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Center for Models of Human Disease, Institute for Genome Science and Policy, Duke University Medical Center, Durham, NC 27710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15618520" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arrestins/genetics/*physiology ; Cell Differentiation ; Cyclic AMP-Dependent Protein Kinases/genetics/metabolism ; Embryo, Nonmammalian/metabolism ; Gene Expression Regulation, Developmental ; Hedgehog Proteins ; Homeodomain Proteins/genetics/metabolism ; In Situ Hybridization ; Membrane Proteins/genetics/metabolism ; Muscle Cells/cytology ; Muscle Fibers, Skeletal/cytology ; Mutation ; Phenotype ; Receptors, Cell Surface ; Receptors, G-Protein-Coupled/genetics/physiology ; Repressor Proteins/genetics/metabolism ; *Signal Transduction ; Trans-Activators/genetics/*metabolism ; Transcription Factors/genetics/metabolism ; Zebrafish/*embryology/genetics/*metabolism ; Zebrafish Proteins/genetics/metabolism/*physiology
    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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