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嗅觉中第二信使信号传导的终止。

Termination of second messenger signaling in olfaction.

作者信息

Boekhoff I, Breer H

机构信息

University Stuttgart-Hohenheim, Institute of Zoophysiology, Stuttgart, Federal Republic of Germany.

出版信息

Proc Natl Acad Sci U S A. 1992 Jan 15;89(2):471-4. doi: 10.1073/pnas.89.2.471.

Abstract

By using isolated rat olfactory cilia and a fast kinetics methodology, it has been demonstrated that odorant-induced second messenger signaling in the millisecond time range is terminated via phosphorylation reactions catalyzed by specific protein kinases. The cyclic adenosine nucleotide pathway is turned off by kinase A activity, whereas the inositol trisphosphate cascade is terminated by kinase C. The data support the concept that desensitization of odorant responses involves phosphorylation of key elements in the transduction cascade.

摘要

通过使用分离的大鼠嗅觉纤毛和快速动力学方法,已证明在毫秒时间范围内,气味剂诱导的第二信使信号传导是通过特定蛋白激酶催化的磷酸化反应终止的。环腺苷酸途径由激酶A活性关闭,而三磷酸肌醇级联反应由激酶C终止。这些数据支持了气味剂反应脱敏涉及转导级联中关键元件磷酸化的概念。

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