Olfactory Receptors
Mostrando 1-12 de 117 artigos, teses e dissertações.
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1. Expression and Localization of Olfactory Receptor AcerOr1 from Chinese Honey Bee, Apis cerana cerana (Hymenoptera, Apidae)
ABSTRACT Olfactory receptors are essential for recognition and detection of odor in honeybees. Although we have cloned and characterized the sequence of olfactory receptor AcerOr1 before, the tissue distribution and location of this gene in the nurse and the forager worker Apis cerana cerana were not very clear. To further investigate this information of Ace
Braz. arch. biol. technol.. Publicado em: 29/11/2018
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2. First experimental evidence that a harvestman (Arachnida: Opiliones) detects odors of non-rotten dead prey by olfaction
Harvestmen feed on live, dead and fresh, or decomposing animals, fungi, and plant matter, being very dependent on chemoreception to find food. Herein we performed an experiment to test if individuals of Discocyrtus pectinifemur Mello-Leitão, 1937 (Gonyleptidae) (n = 23) behave differently when in contact with olfactory cues from different sources (rotten pr
Zoologia (Curitiba). Publicado em: 2013-06
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3. Avaliação da cultura de células-tronco do epitélio olfatório de cães sem raça definida (Canis familiaris Linnaeus, 1758) / Evaluation of stem cell culture of olfactory epithelium from Mongrel dogs (Canis familiaris Linnaeus, 1758)
As células provenientes do epitélio olfatório apresentam capacidade regenerativa durante toda a vida, embora este mecanismo ainda não esteja completamente elucidado. O potencial de diferenciação de células-tronco provenientes do epitélio olfatório de cães sem raça definida (Canis familiaris Linnaeus, 1758) foi avaliado utilizando-se 12 cães adult
Publicado em: 2009
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4. Análise das regiões promotoras dos genes de receptores olfatórios e de receptores de feromônios do tipo 1 / Analysis of promoter regions of the olfactory and type 1 vomeronasal receptor genes
In the mouse genome there are approximately 1000 genes that encode olfactory receptors (ORs) and 150 genes that encode type 1 vomeronasal receptors (V1Rs) dispersed in various chromosomes. Each olfactory or vomeronasal neuron selects one single allele from one single receptor gene (OR or V1R) for expression while the rest of the repertoire remains silenced.
Publicado em: 2008
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5. RIC-8B, a putative GEF of the olfactory system, interacts with Gαolf, Gβ1 e Gγ13 / Ric-8B, uma GEF putativa do sistema olfatório, interage com Gαolf, Gβ1 e Gγ13
The mammalian olfactory system detects small amounts of thousands of different chemical compounds. Odorant perception starts when an odorant in the air binds to an olfactory receptor (OR). ORs belong to the super family of G-protein coupled receptors (GPCRs). Even though the odorant signaling pathway is well known, little is known about its modulators. In 20
Publicado em: 2008
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6. Uso de técnicas computacionais no estudo da transcrição e regulação gênica em Homo sapiens e Mus musculus / Use of computational methods to study the transcription and gene regulation in Homo sapiens and Mus musculus
Genes, nucleotide sequences necessary for the synthesis of functional molecules, are transcribed and regulated by extremely complex cellular and molecular processes. To understand when and in which tissues the genes are expressed, their functional isoforms, control regions and the factors involved in gene regulation is one of major challenges of modern molec
Publicado em: 2008
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7. Ric-8B, a putative GEF for Galpha-olf, promotes functional expression of odorant receptors / Ric-8B, um provável GEF para Galpha-olf, promove expressão funcional de receptores olfatórios
Os odores são detectados por uma grande família de receptores olfatórios (ORs) que são expressos nos neurônios olfatórios localizados no nariz. Os ORs ativados por um determinado odor acoplam-se à proteína Galfaolf que irá promover a ativação da adenilil ciclase III, resultando na produção de AMPc. O aumento da concentração de AMPc irá ativar
Publicado em: 2006
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8. Odorant receptor expressed sequence tags demonstrate olfactory expression of over 400 genes, extensive alternate splicing and unequal expression levels
Previous computational analyses have identified approximately 1,500 mouse olfactory receptors, but experimental evidence confirming olfactory function is available for very few receptors. A mouse olfactory epithelium cDNA library was screened to obtain olfactory receptor expressed sequence tags, providing evidence of olfactory function for many additional ol
BioMed Central.
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9. Dopamine receptor subtypes modulate olfactory bulb γ-aminobutyric acid type A receptors
The γ-aminobutyric acid type A (GABAA) receptor is the predominant Cl− channel protein mediating inhibition in the olfactory bulb and elsewhere in the mammalian brain. The olfactory bulb is rich in neurons containing both GABA and dopamine. Dopamine D1 and D2 receptors are also highly expressed in this brain region with a distinct and complementary distri
The National Academy of Sciences.
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10. Olfactory Receptor Database: a sensory chemoreceptor resource
The Olfactory Receptor Database (ORDB) is a WWW-accessible database that has been expanded from an olfactory receptor resource to a chemoreceptor resource. It stores data on six classes of G-protein-coupled sensory chemoreceptors: (i) olfactory receptor-like proteins, (ii) vomeronasal receptors, (iii) insect olfactory receptors, (iv) worm chemoreceptors, (v)
Oxford University Press.
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11. Selective imaging of presynaptic activity in the mouse olfactory bulb shows concentration and structure dependence of odor responses in identified glomeruli
More chemicals can be smelled than there are olfactory receptors for them, necessitating a combinatorial representation by somewhat broadly tuned receptors. To understand the perception of odor quality and concentration, it is essential to establish the nature of the receptor repertoires that are activated by particular odorants at particular concentrations.
The National Academy of Sciences.
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12. Cloning and localization of two multigene receptor families in goldfish olfactory epithelium
Goldfish reproduction is coordinated by pheromones that are released by ovulating females and detected by males. Two highly potent pheromones, a dihydroxyprogesterone and a prostaglandin, previously have been identified, and their effects on goldfish behavior have been studied in depth. We have cloned goldfish olfactory epithelium cDNAs belonging to two mult
The National Academy of Sciences.