Institute of Biology, Humboldt University of Berlin, Chausseestrasse 117, Berlin, Germany.
J Plant Physiol. 2011 Aug 15;168(12):1361-71. doi: 10.1016/j.jplph.2011.01.012. Epub 2011 Feb 16.
Chloroplast RNA metabolism is characterized by multiple RNA processing steps that require hundreds of RNA binding proteins. A growing number of RNA binding proteins have been shown to mediate specific RNA processing steps in the chloroplast, but little do we know about their regulatory importance or mode of molecular action. This review summarizes knowledge on chloroplast proteins that contain an RNA recognition motif, a classical RNA binding domain widespread in pro- and eukaryotes. Several members of this family respond to external and internal stimuli by changes in their expression levels and protein modification state. They therefore appear as ideal candidates for regulating chloroplast RNA processing under shifting environmental conditions.
叶绿体 RNA 代谢的特点是具有多个 RNA 加工步骤，需要数百种 RNA 结合蛋白。越来越多的 RNA 结合蛋白已被证明可以在叶绿体中介导特定的 RNA 加工步骤，但我们对它们的调节重要性或分子作用模式知之甚少。本文综述了含有 RNA 识别基序的叶绿体蛋白的知识，这是一种在原核生物和真核生物中广泛存在的经典 RNA 结合域。该家族的几个成员通过表达水平和蛋白质修饰状态的变化对外界和内部刺激做出响应。因此，它们似乎是在不断变化的环境条件下调节叶绿体 RNA 加工的理想候选者。
