Research Topics
Species | K TouharaSummaryAffiliation: University of Tokyo Country: Japan Publications
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Detail Information
Publications
Functional cloning and reconstitution of vertebrate odorant receptorsK Touhara
Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Japan
Life Sci 68:2199-206. 2001....
Structural basis for a broad but selective ligand spectrum of a mouse olfactory receptor: mapping the odorant-binding siteSayako Katada
Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Chiba 277 8562, Japan
J Neurosci 25:1806-15. 2005..The current study reveals the molecular environment of the odorant-binding site, and it further advances the understanding of GPCR pharmacology...
Induction of c-Fos expression in mouse vomeronasal neurons by sex-specific non-volatile pheromone(s)Hiroko Kimoto
Department of Integrated Biosciences, University of Tokyo, Chiba 277-8562, Japan
Chem Senses 30:i146-7. 2005
Odor discrimination by G protein-coupled olfactory receptorsKazushige Touhara
Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Chiba 277 8562, Japan
Microsc Res Tech 58:135-41. 2002..The molecular bases of odor discrimination at the level of olfactory receptors appear to correlate well with the receptive field in the olfactory bulb where the input signal is further processed to create the specific odor maps...
Deorphanizing vertebrate olfactory receptors: recent advances in odorant-response assaysKazushige Touhara
Department of Integrated Biosciences, University of Tokyo, Chiba 277 8562, Japan
Neurochem Int 51:132-9. 2007..The conventional ligand-screening approach and the functional cloning strategies in an odorant-directed manner have allowed us to match ORs to the cognate odorants both in vitro and in vivo...
Sexual communication via peptide and protein pheromonesKazushige Touhara
Department of Integrated Biosciences, The University of Tokyo, Chiba, Japan
Curr Opin Pharmacol 8:759-64. 2008..The present review will also discuss why, from chemical and ecological points of view, peptide pheromones evolved...
Insect olfactory receptor complex functions as a ligand-gated ionotropic channelKazushige Touhara
Department of Integrated Biosciences, The University of Tokyo, Chiba, Japan
Ann N Y Acad Sci 1170:177-80. 2009..The olfactory signal transduction mechanism in insects is clearly distinct from that in vertebrates and appears to be a unique strategy that insects have acquired to respond to the olfactory environment...
Sensing odorants and pheromones with chemosensory receptorsKazushige Touhara
Department of Integrated Biosciences, The University of Tokyo, Chiba, 277 8562 Japan
Annu Rev Physiol 71:307-32. 2009..We review recent progress on chemosensory receptor structure, function, and circuitry in vertebrates and invertebrates from the point of view of the molecular biology and physiology of these sensory systems...
Molecular bases of odor discrimination: Reconstitution of olfactory receptors that recognize overlapping sets of odorantsK Kajiya
Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo 113, Japan
J Neurosci 21:6018-25. 2001..Odor discrimination is thus determined by differences in the receptive ranges of the odorant receptors that together encode specific odorant molecules...
Functional identification and reconstitution of an odorant receptor in single olfactory neuronsK Touhara
Department of Neurochemistry, Faculty of Medicine, University of Tokyo, Tokyo 113, Japan
Proc Natl Acad Sci U S A 96:4040-5. 1999..The present approach should enable us to examine not only ligand specificity of an odorant receptor but also receptor specificity and diversity for a particular odorant of interest...
Binding of multiple ligands to pleckstrin homology domain regulates membrane translocation and enzyme activity of beta-adrenergic receptor kinaseK Touhara
Department of Neurochemistry, Faculty of Medicine, The University of Tokyo, Japan
FEBS Lett 417:243-8. 1997..That protein environment plays an important role in determining the ligand binding characteristics of a particular PH domain highlights the potential risks of inferring mechanisms from studies of isolated PH domains...
Insect olfactory receptors are heteromeric ligand-gated ion channelsKoji Sato
Department of Integrated Biosciences, The University of Tokyo, Chiba 277 8562, Japan
Nature 452:1002-6. 2008..The ligand-gated ion channel formed by an insect OR complex seems to be the basis for a unique strategy that insects have acquired to respond to the olfactory environment...
Olfactory receptor antagonism between odorantsYuki Oka
Department of Integrated Biosciences, The University of Tokyo, Chiba, Japan
EMBO J 23:120-6. 2004..The current study also provides insight into strategies to modulate perceived odorant quality...
Structural determinants for membrane trafficking and G protein selectivity of a mouse olfactory receptorSayako Katada
Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Japan
J Neurochem 90:1453-63. 2004..This information helps clarify the mechanisms that regulate membrane trafficking and G protein interaction of the OR superfamily...
Insect olfaction: receptors, signal transduction, and behaviorK Sato
Department of Integrated Biosciences, The University of Tokyo, 5 1 5 Kashiwanoha, Kashiwa, Chiba, 277 8562, Japan
Results Probl Cell Differ 47:121-38. 2009..The understanding of the molecular mechanism of insect olfaction will help in the development of insect repellents for controlling insect pest and vector populations for a wide range of pathogens...
Odorant receptor map in the mouse olfactory bulb: in vivo sensitivity and specificity of receptor-defined glomeruliYuki Oka
Department of Integrated Biosciences, The University of Tokyo, Chiba 277-8562, Japan
Neuron 52:857-69. 2006..Our results provide a methodology to examine in vivo glomerular responses at the receptor level and further help address the long-standing issues of olfactory sensitivity and specificity under physiological conditions...
Insect sex-pheromone signals mediated by specific combinations of olfactory receptorsTakao Nakagawa
Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Chiba 277 8562, Japan
Science 307:1638-42. 2005..The same effects were also observed for general ORs. Both odorant and pheromone signaling pathways are mediated by means of a common mechanism in insects...
Effects of mutations in pleckstrin homology domain on beta-adrenergic receptor kinase activity in intact cellsK Touhara
Department of Neurochemistry, Faculty of Medicine, University of Tokyo, 7 3 1 Hongo, Tokyo, Bunkyo ku, 113, Japan
Biochem Biophys Res Commun 252:669-74. 1998..This site-directed mutation study provides molecular information on the mechanism and significance of the betaARK PH domain function in the intact cell system...
Odorant response assays for a heterologously expressed olfactory receptorSayako Katada
Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, 277-8562, Chiba, Japan
Biochem Biophys Res Commun 305:964-9. 2003..Various functional assays for a heterologously expressed olfactory receptor reported in this study, are potentially useful for high-throughput ligand screening and functional analyses of hundreds of olfactory receptors...
Functional characterization of a mouse testicular olfactory receptor and its role in chemosensing and in regulation of sperm motilityNanaho Fukuda
Department of Integrated Biosciences, The University of Tokyo, Chiba 277 8562, Japan
J Cell Sci 117:5835-45. 2004..The present studies indicate that mouse testicular ORs might play a role in chemoreception during sperm-egg communication and thereby regulate fertilization...
Mammalian olfactory receptors: pharmacology, G protein coupling and desensitizationAya Kato
Department of Integrated Biosciences, The University of Tokyo, Room 201, 5 1 5, Kashiwanoha, Kashiwa, Chiba 277 8562, Japan
Cell Mol Life Sci 66:3743-53. 2009..A greater understanding of the molecular mechanisms underlying OR activity may help in the discovery of agonists and antagonists of ORs, and of GPCRs with potential therapeutic applications...
Amino acids involved in conformational dynamics and G protein coupling of an odorant receptor: targeting gain-of-function mutationAya Kato
Department of Integrated Biosciences, The University of Tokyo, Chiba, Japan
J Neurochem 107:1261-70. 2008..Our results provide insights into how ORs switch from an inactive to an active state, as well as where and how activated ORs interact with G proteins...
Molecular biology of peptide pheromone production and reception in miceKazushige Touhara
Department of Integrated Biosciences, The University of Tokyo, Chiba 277 8562, Japan
Adv Genet 59:147-71. 2007..It is also an intriguing aspect to discuss peptide pheromones in the context of the evolutionary importance of species-specific chemical communication...
In situ Ca2+ imaging of odor responses in a coronal olfactory epithelium sliceMasayo Omura
Department of Integrated Biosciences, University of Tokyo, Chiba 277-8562, Japan
Neuroreport 14:1123-7. 2003..The methodology established in this study is a powerful tool to visualize spatial distributions of odorant responsive neurons at a cellular resolution, and to construct odor maps in a coronal view of the olfactory epithelium...
An odorant derivative as an antagonist for an olfactory receptorYuki Oka
Department of Integrated Biosciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8562, Japan
Chem Senses 29:815-22. 2004..The current study indicates that as odorants age, they decompose or react with other odorants, which in turn affects responsiveness of an olfactory receptor(s)...
Highly selective tuning of a silkworm olfactory receptor to a key mulberry leaf volatileKana Tanaka
Department of Integrated Biosciences, The University of Tokyo, Chiba 277 8562, Japan
Curr Biol 19:881-90. 2009..Here, we aimed to identify natural chemoattractants and their corresponding olfactory receptors (Ors) involved in silkworm behavior to mulberry leaves...
Nasal airflow rate affects the sensitivity and pattern of glomerular odorant responses in the mouse olfactory bulbYuki Oka
Department of Integrated Biosciences, The University of Tokyo, Chiba 277 8562, Japan
J Neurosci 29:12070-8. 2009..Our results provide important information on in vivo odorant recognition and suggest that odor representation in the OB is not fixed but rather varies significantly depending on the respiratory state...
Broadly and narrowly tuned odorant receptors are involved in female sex pheromone reception in Ostrinia mothsNami Miura
Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo 113 8657, Japan
Insect Biochem Mol Biol 40:64-73. 2010..scapulalis. The findings of the present study are discussed with reference to knowledge on electrophysiological response profiles of olfactory receptor neurons in Ostrinia moths...
Myr-Ric-8A enhances G(alpha15)-mediated Ca2+ response of vertebrate olfactory receptorsKeiichi Yoshikawa
Department of Integrated Biosciences, Rm201, The University of Tokyo, Kashiwa, Chiba, Japan
Chem Senses 34:15-23. 2009..Our results suggest that Myr-Ric-8A should be helpful in functional characterization of ORs in heterologous cells using Ca(2+) imaging...
The male mouse pheromone ESP1 enhances female sexual receptive behaviour through a specific vomeronasal receptorSachiko Haga
Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113 8657, Japan
Nature 466:118-22. 2010..These findings show that ESP1 is a crucial male pheromone that regulates female reproductive behaviour through a specific receptor in the mouse vomeronasal system...
[A molecular basis for odorant recognition: olfactory receptor pharmacology]Sayako Katada
Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Chiba 277-8562, Japan
Nippon Yakurigaku Zasshi 124:201-9. 2004..The current studies also help understand mechanisms underlying molecular recognition by GPCRs, with implications for therapeutic application...
Sex-specific peptides from exocrine glands stimulate mouse vomeronasal sensory neuronsHiroko Kimoto
Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Chiba 277 8562, Japan
Nature 437:898-901. 2005..Our results indicate that mice respond to sex-specific peptides released from exocrine glands through the vomeronasal system during direct contact...
[Function of olfactory receptors in non-olfactory tissues]Nanaho Fukuda
Department of Integrated Biosciences, The University of Tokyo, 5-1-5-201 Kashiwanoha, Chiba 277-8562, Japan
Seikagaku 76:1462-6. 2004
Adiponectin and AdipoR1 regulate PGC-1alpha and mitochondria by Ca(2+) and AMPK/SIRT1Masato Iwabu
Department of Diabetes and Metabolic Diseases, Graduate School of Medicine, University of Tokyo, Tokyo 113 0033, Japan
Nature 464:1313-9. 2010..Decreased levels of adiponectin and AdipoR1 in obesity may have causal roles in mitochondrial dysfunction and insulin resistance seen in diabetes...
Developmental expression patterns of testicular olfactory receptor genes during mouse spermatogenesisNanaho Fukuda
Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Chiba 277-8562, Japan
Genes Cells 11:71-81. 2006....
A male-specific odorant receptor conserved through the evolution of sex pheromones in Ostrinia moth speciesNami Miura
Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo 113 8657, Japan
Int J Biol Sci 5:319-30. 2009..The present findings suggest that the male-specific receptor of E11-14:OH was acquired before the divergence of the genus Ostrinia, and functionally retained through the evolution of this genus...
Sex- and strain-specific expression and vomeronasal activity of mouse ESP family peptidesHiroko Kimoto
Department of Integrated Biosciences, The University of Tokyo, 5 1 5 Kashiwanoha, Kashiwa, Chiba 277 8562, Japan
Curr Biol 17:1879-84. 2007..The chemosensation of this nonvolatile peptide family by direct contact appears to be one of strategies for sociosexual communication in rodent species...
[Mechanisms underlying odorant and pheromone reception]Kazushige Touhara
Department of Integrated Bio-sciences, Graduate School of Frontier Sciences, The University of Tokyo, Seimei-to Rm 201, Univ. Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8562, Japan
Seikagaku 77:1463-74. 2005
Dimethyl trisulfide as a characteristic odor associated with fungating cancer woundsMika Shirasu
Department of Integrated Biosciences, The University of Tokyo, Chiba 277 8562, Japan
Biosci Biotechnol Biochem 73:2117-20. 2009..Controlling the production of dimethyl trisulfide should improve quality of life of patients...
Identification and functional characterization of a sex pheromone receptor in the silkmoth Bombyx moriTakeshi Sakurai
Division of Applied Biosciences, Graduate School of Agriculture, Kyoto University, Kitashirakawa, Kyoto 606 8502, Japan
Proc Natl Acad Sci U S A 101:16653-8. 2004..These results provide evidence that BmOR-1 is a G protein-coupled sex pheromone receptor that recognizes bombykol...
Decreased olfactory mucus secretion and nasal abnormality in mice lacking type 2 and type 3 IP3 receptorsNanaho Fukuda
Laboratory for Developmental Neurobiology, Brain Science Institute, RIKEN, 2 1 Hirosawa, Wako, Saitama 351 0198, Japan
Eur J Neurosci 27:2665-75. 2008..Our findings suggest that IP3R2 and IP3R3 mediate nasal mucus secretion, which is important for the maintenance of nasal tissue as well as the perception of odors...
[Molecular mechanisms underlying sex-pheromone reception in insects]Takao Nakagawa
Tanpakushitsu Kakusan Koso 50:1563-70. 2005
[Progress in research and clinical practice concerning olfactory sensation--importance of the olfactory mucus in the olfactory sense and signal transduction to the brain]Kazushige Touhara
Nippon Jibiinkoka Gakkai Kaiho 111:475-80. 2008
