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  • Mice, Inbred C57BL  (10)
  • Protein Binding  (8)
  • American Association for the Advancement of Science (AAAS)  (11)
  • Nature Publishing Group (NPG)  (6)
  • American Geophysical Union (AGU)
  • Springer
  • 2005-2009  (17)
  • 1935-1939
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (11)
  • Nature Publishing Group (NPG)  (6)
  • American Geophysical Union (AGU)
  • Springer
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Year
  • 1
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    New role of bone morphogenetic protein 7 in brown adipogenesis and energy expenditure (2008)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2008-08-23
    Description: Adipose tissue is central to the regulation of energy balance. Two functionally different types of fat are present in mammals: white adipose tissue, the primary site of triglyceride storage, and brown adipose tissue, which is specialized in energy expenditure and can counteract obesity. Factors that specify the developmental fate and function of white and brown adipose tissue remain poorly understood. Here we demonstrate that whereas some members of the family of bone morphogenetic proteins (BMPs) support white adipocyte differentiation, BMP7 singularly promotes differentiation of brown preadipocytes even in the absence of the normally required hormonal induction cocktail. BMP7 activates a full program of brown adipogenesis including induction of early regulators of brown fat fate PRDM16 (PR-domain-containing 16; ref. 4) and PGC-1alpha (peroxisome proliferator-activated receptor-gamma (PPARgamma) coactivator-1alpha; ref. 5), increased expression of the brown-fat-defining marker uncoupling protein 1 (UCP1) and adipogenic transcription factors PPARgamma and CCAAT/enhancer-binding proteins (C/EBPs), and induction of mitochondrial biogenesis via p38 mitogen-activated protein (MAP) kinase-(also known as Mapk14) and PGC-1-dependent pathways. Moreover, BMP7 triggers commitment of mesenchymal progenitor cells to a brown adipocyte lineage, and implantation of these cells into nude mice results in development of adipose tissue containing mostly brown adipocytes. Bmp7 knockout embryos show a marked paucity of brown fat and an almost complete absence of UCP1. Adenoviral-mediated expression of BMP7 in mice results in a significant increase in brown, but not white, fat mass and leads to an increase in energy expenditure and a reduction in weight gain. These data reveal an important role of BMP7 in promoting brown adipocyte differentiation and thermogenesis in vivo and in vitro, and provide a potential new therapeutic approach for the treatment of obesity.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2745972/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2745972/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tseng, Yu-Hua -- Kokkotou, Efi -- Schulz, Tim J -- Huang, Tian Lian -- Winnay, Jonathon N -- Taniguchi, Cullen M -- Tran, T Thien -- Suzuki, Ryo -- Espinoza, Daniel O -- Yamamoto, Yuji -- Ahrens, Molly J -- Dudley, Andrew T -- Norris, Andrew W -- Kulkarni, Rohit N -- Kahn, C Ronald -- K08 DK064906/DK/NIDDK NIH HHS/ -- K08 DK64906/DK/NIDDK NIH HHS/ -- P30 DK040561/DK/NIDDK NIH HHS/ -- P30 DK040561-13/DK/NIDDK NIH HHS/ -- P30 DK46200/DK/NIDDK NIH HHS/ -- R01 DK 060837/DK/NIDDK NIH HHS/ -- R01 DK077097/DK/NIDDK NIH HHS/ -- R01 DK077097-01A1/DK/NIDDK NIH HHS/ -- R01 DK077097-02/DK/NIDDK NIH HHS/ -- R01 DK67536/DK/NIDDK NIH HHS/ -- R21 DK070722/DK/NIDDK NIH HHS/ -- R21 DK070722-01/DK/NIDDK NIH HHS/ -- R21 DK070722-02/DK/NIDDK NIH HHS/ -- England -- Nature. 2008 Aug 21;454(7207):1000-4. doi: 10.1038/nature07221.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section on Obesity and Hormone Action, Joslin Diabetes Center, Harvard Medical School, Boston, Massachusetts 02215, USA. yu-hua.tseng@joslin.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18719589" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3-L1 Cells ; *Adipogenesis ; Adipose Tissue, Brown/*growth & development/*metabolism ; Adipose Tissue, White/growth & development ; Animals ; Bone Morphogenetic Protein 7 ; Bone Morphogenetic Proteins/*metabolism ; Cell Line ; *Energy Metabolism/genetics ; Male ; Mesenchymal Stromal Cells/cytology/physiology ; Mice ; Mice, Inbred C57BL ; Mice, Nude ; Mitochondria/physiology ; Thermogenesis ; Transforming Growth Factor beta/*metabolism ; p38 Mitogen-Activated Protein Kinases/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 2
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    HDAC2 negatively regulates memory formation and synaptic plasticity (2009)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2009-05-09
    Description: Chromatin modifications, especially histone-tail acetylation, have been implicated in memory formation. Increased histone-tail acetylation induced by inhibitors of histone deacetylases (HDACis) facilitates learning and memory in wild-type mice as well as in mouse models of neurodegeneration. Harnessing the therapeutic potential of HDACis requires knowledge of the specific HDAC family member(s) linked to cognitive enhancement. Here we show that neuron-specific overexpression of HDAC2, but not that of HDAC1, decreased dendritic spine density, synapse number, synaptic plasticity and memory formation. Conversely, Hdac2 deficiency resulted in increased synapse number and memory facilitation, similar to chronic treatment with HDACis in mice. Notably, reduced synapse number and learning impairment of HDAC2-overexpressing mice were ameliorated by chronic treatment with HDACis. Correspondingly, treatment with HDACis failed to further facilitate memory formation in Hdac2-deficient mice. Furthermore, analysis of promoter occupancy revealed an association of HDAC2 with the promoters of genes implicated in synaptic plasticity and memory formation. Taken together, our results suggest that HDAC2 functions in modulating synaptic plasticity and long-lasting changes of neural circuits, which in turn negatively regulates learning and memory. These observations encourage the development and testing of HDAC2-selective inhibitors for human diseases associated with memory impairment.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3498958/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3498958/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Guan, Ji-Song -- Haggarty, Stephen J -- Giacometti, Emanuela -- Dannenberg, Jan-Hermen -- Joseph, Nadine -- Gao, Jun -- Nieland, Thomas J F -- Zhou, Ying -- Wang, Xinyu -- Mazitschek, Ralph -- Bradner, James E -- DePinho, Ronald A -- Jaenisch, Rudolf -- Tsai, Li-Huei -- R01 DA028301/DA/NIDA NIH HHS/ -- R01 DA028301-02/DA/NIDA NIH HHS/ -- R01 NS051874/NS/NINDS NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2009 May 7;459(7243):55-60. doi: 10.1038/nature07925.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Picower Institute for Learning and Memory, Department of Brain and Cognitive Sciences.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19424149" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Butyrates/pharmacology ; Dendritic Spines/physiology ; Electrical Synapses/*physiology ; Female ; Gene Expression Regulation ; Hippocampus/metabolism ; Histone Deacetylase 1 ; Histone Deacetylase 2 ; Histone Deacetylase Inhibitors ; Histone Deacetylases/deficiency/genetics/*metabolism ; Hydroxamic Acids/pharmacology ; Learning/drug effects ; Male ; Memory/drug effects/*physiology ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Neurons/metabolism ; Promoter Regions, Genetic/genetics ; Repressor Proteins/antagonists & inhibitors/genetics/*metabolism ; Sodium/pharmacology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 3
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    The chromatin remodeller ACF acts as a dimeric motor to space nucleosomes (2009)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2009-12-25
    Description: Evenly spaced nucleosomes directly correlate with condensed chromatin and gene silencing. The ATP-dependent chromatin assembly factor (ACF) forms such structures in vitro and is required for silencing in vivo. ACF generates and maintains nucleosome spacing by constantly moving a nucleosome towards the longer flanking DNA faster than the shorter flanking DNA. How the enzyme rapidly moves back and forth between both sides of a nucleosome to accomplish bidirectional movement is unknown. Here we show that nucleosome movement depends cooperatively on two ACF molecules, indicating that ACF functions as a dimer of ATPases. Further, the nucleotide state determines whether the dimer closely engages one or both sides of the nucleosome. Three-dimensional reconstruction by single-particle electron microscopy of the ATPase-nucleosome complex in an activated ATP state reveals a dimer architecture in which the two ATPases face each other. Our results indicate a model in which the two ATPases work in a coordinated manner, taking turns to engage either side of a nucleosome, thereby allowing processive bidirectional movement. This novel dimeric motor mechanism differs from that of dimeric motors such as kinesin and dimeric helicases that processively translocate unidirectionally and reflects the unique challenges faced by motors that move nucleosomes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2869534/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2869534/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Racki, Lisa R -- Yang, Janet G -- Naber, Nariman -- Partensky, Peretz D -- Acevedo, Ashley -- Purcell, Thomas J -- Cooke, Roger -- Cheng, Yifan -- Narlikar, Geeta J -- R01 GM073767/GM/NIGMS NIH HHS/ -- R01 GM073767-01/GM/NIGMS NIH HHS/ -- R01 GM073767-02/GM/NIGMS NIH HHS/ -- R01 GM073767-03/GM/NIGMS NIH HHS/ -- R01 GM073767-03S1/GM/NIGMS NIH HHS/ -- R01 GM073767-04/GM/NIGMS NIH HHS/ -- R01 GM073767-05/GM/NIGMS NIH HHS/ -- England -- Nature. 2009 Dec 24;462(7276):1016-21. doi: 10.1038/nature08621.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Biophysics, University of California, San Francisco, California 94158, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20033039" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphatases/metabolism ; Adenosine Triphosphate/metabolism ; Animals ; Cell Line ; Chromatin Assembly and Disassembly/*physiology ; Dimerization ; Gene Silencing/physiology ; Histones/metabolism ; Humans ; Microscopy, Electron, Transmission ; *Models, Molecular ; Multiprotein Complexes/*metabolism ; Nucleosomes/chemistry/*metabolism ; Protein Binding ; Protein Structure, Tertiary ; Transcription Factors/chemistry/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 4
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    Structure and function of an essential component of the outer membrane protein assembly machine (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-08-19
    Description: Integral beta-barrel proteins are found in the outer membranes of mitochondria, chloroplasts, and Gram-negative bacteria. The machine that assembles these proteins contains an integral membrane protein, called YaeT in Escherichia coli, which has one or more polypeptide transport-associated (POTRA) domains. The crystal structure of a periplasmic fragment of YaeT reveals the POTRA domain fold and suggests a model for how POTRA domains can bind different peptide sequences, as required for a machine that handles numerous beta-barrel protein precursors. Analysis of POTRA domain deletions shows which are essential and provides a view of the spatial organization of this assembly machine.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, Seokhee -- Malinverni, Juliana C -- Sliz, Piotr -- Silhavy, Thomas J -- Harrison, Stephen C -- Kahne, Daniel -- GM34821/GM/NIGMS NIH HHS/ -- GM66174/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2007 Aug 17;317(5840):961-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17702946" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Bacterial Outer Membrane Proteins/*chemistry/genetics/*metabolism ; Cell Membrane/metabolism ; Crystallography, X-Ray ; Dimerization ; Escherichia coli/*chemistry/*metabolism ; Escherichia coli Proteins/*chemistry/genetics/*metabolism ; Hydrogen Bonding ; Hydrophobic and Hydrophilic Interactions ; Lipoproteins/chemistry/metabolism ; Models, Biological ; Models, Molecular ; Molecular Sequence Data ; Mutation ; Protein Binding ; Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Protein Transport
    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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    A functional role for adult hippocampal neurogenesis in spatial pattern separation (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-07-11
    Description: The dentate gyrus (DG) of the mammalian hippocampus is hypothesized to mediate pattern separation-the formation of distinct and orthogonal representations of mnemonic information-and also undergoes neurogenesis throughout life. How neurogenesis contributes to hippocampal function is largely unknown. Using adult mice in which hippocampal neurogenesis was ablated, we found specific impairments in spatial discrimination with two behavioral assays: (i) a spatial navigation radial arm maze task and (ii) a spatial, but non-navigable, task in the mouse touch screen. Mice with ablated neurogenesis were impaired when stimuli were presented with little spatial separation, but not when stimuli were more widely separated in space. Thus, newborn neurons may be necessary for normal pattern separation function in the DG of adult mice.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2997634/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2997634/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clelland, C D -- Choi, M -- Romberg, C -- Clemenson, G D Jr -- Fragniere, A -- Tyers, P -- Jessberger, S -- Saksida, L M -- Barker, R A -- Gage, F H -- Bussey, T J -- NS-050217/NS/NINDS NIH HHS/ -- R01 NS050217/NS/NINDS NIH HHS/ -- R01 NS050217-05/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2009 Jul 10;325(5937):210-3. doi: 10.1126/science.1173215.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Genetics, Salk Institute for Biological Studies, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19590004" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cues ; Dentate Gyrus/cytology/*physiology ; Discrimination Learning/*physiology ; Female ; Hippocampus/cytology/*physiology ; Maze Learning ; Memory/*physiology ; Mice ; Mice, Inbred C57BL ; *Neurogenesis ; Neurons/*physiology ; Psychomotor Performance ; *Space Perception
    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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    Alternative zippering as an on-off switch for SNARE-mediated fusion (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-01-24
    Description: Membrane fusion between vesicles and target membranes involves the zippering of a four-helix bundle generated by constituent helices derived from target- and vesicle-soluble N-ethylmaleimide-sensitive factor attachment protein receptors (SNAREs). In neurons, the protein complexin clamps otherwise spontaneous fusion by SNARE proteins, allowing neurotransmitters and other mediators to be secreted when and where they are needed as this clamp is released. The membrane-proximal accessory helix of complexin is necessary for clamping, but its mechanism of action is unknown. Here, we present experiments using a reconstituted fusion system that suggest a simple model in which the complexin accessory helix forms an alternative four-helix bundle with the target-SNARE near the membrane, preventing the vesicle-SNARE from completing its zippering.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3736854/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3736854/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Giraudo, Claudio G -- Garcia-Diaz, Alejandro -- Eng, William S -- Chen, Yuhang -- Hendrickson, Wayne A -- Melia, Thomas J -- Rothman, James E -- R01 GM071458/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Jan 23;323(5913):512-6. doi: 10.1126/science.1166500.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology and Cellular Biophysics, Columbia University, College of Physicians and Surgeons, 1150 Saint Nicholas Avenue, Russ Berrie Building, Room 520, New York, NY 10032, USA. claudio.giraudo@yale.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19164750" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Vesicular Transport ; Amino Acid Motifs ; Amino Acid Sequence ; HeLa Cells ; Humans ; Hydrophobic and Hydrophilic Interactions ; *Membrane Fusion ; Models, Molecular ; Molecular Sequence Data ; Mutant Proteins/chemistry/metabolism ; Mutation ; Nerve Tissue Proteins/*chemistry/genetics/*metabolism ; Protein Binding ; Protein Structure, Secondary ; Recombinant Fusion Proteins/chemistry/metabolism ; SNARE Proteins/*chemistry/*metabolism ; Vesicle-Associated Membrane Protein 2/*chemistry/*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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  • 7
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    Uncharged tRNA and sensing of amino acid deficiency in mammalian piriform cortex (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-03-19
    Description: Recognizing a deficiency of indispensable amino acids (IAAs) for protein synthesis is vital for dietary selection in metazoans, including humans. Cells in the brain's anterior piriform cortex (APC) are sensitive to IAA deficiency, signaling diet rejection and foraging for complementary IAA sources, but the mechanism is unknown. Here we report that the mechanism for recognizing IAA-deficient foods follows the conserved general control (GC) system, wherein uncharged transfer RNA induces phosphorylation of eukaryotic initiation factor 2 (eIF2) via the GC nonderepressing 2 (GCN2) kinase. Thus, a basic mechanism of nutritional stress management functions in mammalian brain to guide food selection for survival.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hao, Shuzhen -- Sharp, James W -- Ross-Inta, Catherine M -- McDaniel, Brent J -- Anthony, Tracy G -- Wek, Ronald C -- Cavener, Douglas R -- McGrath, Barbara C -- Rudell, John B -- Koehnle, Thomas J -- Gietzen, Dorothy W -- GM49164/GM/NIGMS NIH HHS/ -- NS043231/NS/NINDS NIH HHS/ -- NS33347/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2005 Mar 18;307(5716):1776-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Veterinary Medicine, Department of Anatomy, Physiology and Cell Biology, University of California, Davis, CA 95616, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15774759" target="_blank"〉PubMed〈/a〉
    Keywords: Acylation ; Amino Acids, Essential/*administration & dosage/analysis/*deficiency ; Animals ; Diet ; Eating ; Eukaryotic Initiation Factor-2/*metabolism ; *Food ; Food Preferences ; Leucine/administration & dosage/*analogs & derivatives/pharmacology ; Mice ; Mice, Inbred C57BL ; Olfactory Pathways/*metabolism ; Phosphorylation ; Protein Kinases/*metabolism ; Protein-Serine-Threonine Kinases ; RNA, Transfer/*metabolism ; Rats ; Stereoisomerism ; Threonine/administration & dosage ; eIF-2 Kinase/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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  • 8
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    Impaired thermosensation in mice lacking TRPV3, a heat and camphor sensor in the skin (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-03-05
    Description: Environmental temperature is thought to be directly sensed by neurons through their projections in the skin. A subset of the mammalian transient receptor potential (TRP) family of ion channels has been implicated in this process. These "thermoTRPs" are activated at distinct temperature thresholds and are typically expressed in sensory neurons. TRPV3 is activated by heat (〉33 degrees C) and, unlike most thermoTRPs, is expressed in mouse keratinocytes. We found that TRPV3 null mice have strong deficits in responses to innocuous and noxious heat but not in other sensory modalities; hence, TRPV3 has a specific role in thermosensation. The natural compound camphor, which modulates sensations of warmth in humans, proved to be a specific activator of TRPV3. Camphor activated cultured primary keratinocytes but not sensory neurons, and this activity was abolished in TRPV3 null mice. Therefore, heat-activated receptors in keratinocytes are important for mammalian thermosensation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Moqrich, Aziz -- Hwang, Sun Wook -- Earley, Taryn J -- Petrus, Matt J -- Murray, Amber N -- Spencer, Kathryn S R -- Andahazy, Mary -- Story, Gina M -- Patapoutian, Ardem -- New York, N.Y. -- Science. 2005 Mar 4;307(5714):1468-72.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Scripps Research Institute, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15746429" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bradykinin/pharmacology ; CHO Cells ; Camphor/pharmacology ; Cation Transport Proteins/genetics/*physiology ; Cells, Cultured ; Cricetinae ; Dermis/anatomy & histology/innervation/ultrastructure ; Epidermis/anatomy & histology/innervation/ultrastructure ; Ganglia, Spinal/cytology/metabolism ; *Hot Temperature ; Humans ; Ion Channels/genetics/*physiology ; Keratinocytes/*metabolism ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Neurons, Afferent/physiology ; Patch-Clamp Techniques ; TRPV Cation Channels ; Temperature ; Thermoreceptors/*physiology ; *Thermosensing ; Time Factors
    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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  • 9
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    A systems approach to mapping DNA damage response pathways (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-05-20
    Description: Failure of cells to respond to DNA damage is a primary event associated with mutagenesis and environmental toxicity. To map the transcriptional network controlling the damage response, we measured genomewide binding locations for 30 damage-related transcription factors (TFs) after exposure of yeast to methyl-methanesulfonate (MMS). The resulting 5272 TF-target interactions revealed extensive changes in the pattern of promoter binding and identified damage-specific binding motifs. As systematic functional validation, we identified interactions for which the target changed expression in wild-type cells in response to MMS but was nonresponsive in cells lacking the TF. Validated interactions were assembled into causal pathway models that provide global hypotheses of how signaling, transcription, and phenotype are integrated after damage.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2811083/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2811083/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Workman, Christopher T -- Mak, H Craig -- McCuine, Scott -- Tagne, Jean-Bosco -- Agarwal, Maya -- Ozier, Owen -- Begley, Thomas J -- Samson, Leona D -- Ideker, Trey -- R01 ES014811/ES/NIEHS NIH HHS/ -- R01 ES014811-01A1/ES/NIEHS NIH HHS/ -- R01 GM070743/GM/NIGMS NIH HHS/ -- R01 GM070743-01/GM/NIGMS NIH HHS/ -- R01 GM070743-02/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2006 May 19;312(5776):1054-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of California San Diego, La Jolla, CA 92093, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16709784" target="_blank"〉PubMed〈/a〉
    Keywords: *DNA Damage ; DNA Repair/genetics/physiology ; DNA, Fungal ; Fungal Proteins/metabolism ; Gene Expression Regulation, Fungal ; Methyl Methanesulfonate ; Promoter Regions, Genetic ; Protein Binding ; Saccharomyces ; Signal Transduction ; Systems Theory ; Transcription Factors/*metabolism ; Transcription, Genetic
    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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  • 10
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    Concurrent fast and slow cycling of a transcriptional activator at an endogenous promoter (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-01-26
    Description: For gene regulation, some transcriptional activators bind periodically to promoters with either a fast (approximately 1 minute) or a slow (approximately 15 to 90 minutes) cycle. It is uncertain whether the fast cycle occurs on natural promoters, and the function of either cycle in transcription remains unclear. We report that fast and slow cycling can occur simultaneously on an endogenous yeast promoter and that slow cycling in this system reflects an oscillation in the fraction of accessible promoters rather than the recruitment and release of stably bound transcriptional activators. This observation, combined with single-cell measurements of messenger RNA (mRNA) production, argues that fast cycling initiates transcription and that slow cycling regulates the quantity of mRNA produced. These findings counter the prevailing view that slow cycling initiates transcription.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Karpova, Tatiana S -- Kim, Min J -- Spriet, Corentin -- Nalley, Kip -- Stasevich, Timothy J -- Kherrouche, Zoulika -- Heliot, Laurent -- McNally, James G -- New York, N.Y. -- Science. 2008 Jan 25;319(5862):466-9. doi: 10.1126/science.1150559.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Cancer Research Core Imaging Facility, Laboratory of Receptor Biology and Gene Expression, National Cancer Institute, National Institutes of Health, 41 Library Drive, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18218898" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Carrier Proteins/*genetics ; Chromatin Immunoprecipitation ; Chromosomal Proteins, Non-Histone/metabolism ; Copper/metabolism ; DNA-Binding Proteins/genetics/*metabolism ; Fluorescence Recovery After Photobleaching ; Metallothionein ; *Promoter Regions, Genetic ; Protein Binding ; RNA, Fungal/biosynthesis ; RNA, Messenger/biosynthesis ; Recombinant Fusion Proteins ; Saccharomyces cerevisiae/*genetics/metabolism ; Saccharomyces cerevisiae Proteins/genetics/*metabolism ; Time Factors ; Transcription Factors/genetics/*metabolism ; *Transcription, Genetic
    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)
    Location Call Number Expected Availability
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