...
首页> 外文期刊>Neuron >PDF receptor signaling in Drosophila contributes to both circadian and geotactic behaviors.
【24h】

PDF receptor signaling in Drosophila contributes to both circadian and geotactic behaviors.

机译:果蝇中的PDF受体信号传导有助于昼夜节律行为和地动学行为。

获取原文
获取原文并翻译 | 示例
           

摘要

The neuropeptide Pigment-Dispersing Factor (PDF) is a principle transmitter regulating circadian locomotor rhythms in Drosophila. We have identified a Class II (secretin-related) G protein-coupled receptor (GPCR) that is specifically responsive to PDF and also to calcitonin-like peptides and to PACAP. In response to PDF, the PDF receptor (PDFR) elevates cAMP levels when expressed in HEK293 cells. As predicted by in vivo studies, cotransfection of Neurofibromatosis Factor 1 significantly improves coupling of PDFR to adenylate cyclase. pdfr mutant flies display increased circadian arrhythmicity, and also display altered geotaxis that is epistatic to that of pdf mutants. PDFR immunosignals are expressed by diverse neurons, but only by a small subset of circadian pacemakers. These data establish the first synapse within the Drosophila circadian neural circuit and underscore the importance of Class II peptide GPCR signaling in circadian neural systems.
机译:神经肽色素分散因子(PDF)是调节果蝇昼夜运动节律的主要递质。我们已经确定了II类(与分泌蛋白相关的)G蛋白偶联受体(GPCR),该受体对PDF以及降钙素样肽和PACAP都具有特异性。响应PDF,PDF受体(PDFR)在HEK293细胞中表达时会提高cAMP水平。如体内研究所预测,神经纤维瘤病因子1的共转染可显着改善PDFR与腺苷酸环化酶的偶联。 pdfr突变体蝇显示出昼夜节律性增加,并且还显示出与pdf突变体相比具有上位性的改变的地心。 PDFR免疫信号由多种神经元表达,但仅由一小部分昼夜节律起搏器表达。这些数据建立了果蝇昼夜节律神经回路内的第一个突触,并强调了昼夜节律神经系统中II类肽GPCR信号传导的重要性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号