信号识别颗粒

信号识别颗粒（，简称为SRP）是一种存在于胞质溶胶中大量、普遍存在且进化保守的核糖核蛋白（蛋白质-RNA复合体），它可以识别特定的蛋白质，并将它们对准投放到真核细胞的内质网/原核生物的质膜上。

另见
信号识别颗粒RNA

参考文献

外部链接
 
 Signal Recognition Particle Database
 www.dnaTube.com video showing an SRP in action 
 Another SRP video at www.dnaTube.com 
 The Nobel Prize in Physiology or Medicine 1999, "for the discovery that proteins have intrinsic signals that govern their transport and localization in the cell" to Günter Blobel, USA. Press Release, Illustrated Presentation, Presentation Speech

细胞信号传导