Molecular organization of vomeronasal chemoreception.

Molecular organization of vomeronasal chemoreception.
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DOI:
10.1038/nature10437
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发表时间:
2011-09-21
期刊:
影响因子:
64.8
通讯作者:
Dulac, Catherine
Dulac, Catherine
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Isogai, Yoh;Si, Sheng;Pont-Lezica, Lorena;Tan, Taralyn;Kapoor, Vikrant;Murthy, Venkatesh N.;Dulac, Catherine

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犁鼻器(VNO)在介导许多陆生脊椎动物对物种和性别特异性化学信号的社会和防御反应中起着关键作用。在小鼠VNO中已经鉴定出超过250种推定的信息素受体,但是由单个VNO受体检测到的信号的性质尚未阐明。为了深入了解导致交配,侵略,或防御反应的VNO检测的分子逻辑,我们试图揭示个人犁鼻受体的反应谱范围广泛的动物线索。在这里,我们描述了剧目的行为学和生理刺激检测到大量的个人犁鼻受体,并定义一个全球地图犁鼻信号检测。我们表明,这两类犁鼻受体V1Rs和V2Rs使用根本不同的策略来编码化学感受信息,不同的受体亚家族已经发展到特定的识别某些动物群体或化学结构。犁鼻受体的大子集与同源的,行为学和生理学相关的刺激的协会建立犁鼻信息编码的分子基础,并为进一步研究行为特异性的神经机制开辟了新的途径。
The vomeronasal organ (VNO) plays a key role in mediating the social and defensive responses of many terrestrial vertebrates to species- and sex-specific chemosignals. Over 250 putative pheromone receptors have been identified in the mouse VNO, but the nature of the signals detected by individual VNO receptors has not yet been elucidated. In order to gain insight into the molecular logic of VNO detection leading to mating, aggression, or defensive responses, we sought to uncover the response profiles of individual vomeronasal receptors to a wide range of animal cues. We describe here the repertoire of ethological and physiological stimuli detected by a large number of individual vomeronasal receptors, and define a global map of vomeronasal signal detection. We demonstrate that the two classes of vomeronasal receptors V1Rs and V2Rs use fundamentally different strategies to encode chemosensory information, and that distinct receptor subfamilies have evolved towards the specific recognition of certain animal groups or chemical structures. The association of large subsets of vomeronasal receptors with cognate, ethologically and physiologically relevant stimuli establishes the molecular foundation of vomeronasal information coding, and opens new avenues for further investigating the neural mechanisms underlying behavior specificity.
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