Laboratório de Genômica Funcional e Transdução de Sinal, Departamento de Genética, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
Plant Signal Behav. 2010 Feb;5(2):99-104. doi: 10.4161/psb.5.2.10336. Epub 2010 Feb 14.
The first plant glycine-rich proteins (GRPs) have been isolated more than 20 years ago based on their specific expression pattern and/or modulation by several biotic and abiotic factors. This superfamily is characterized by the presence of a glycine-rich domain arranged in (Gly)(n)-X repeats. The presence of additional motifs, as well as the nature of the glycine repeats, groups them in different classes. The diversity in structure as well as in expression pattern, modulation and sub-cellular localization have always indicated that these proteins, although classified as members of the same superfamily, would perform different functions in planta. Only now, two decades later, with the first functional characterizations of plant GRPs their involvement in diverse biological and biochemical processes are being uncovered. Here, we review the so far ascribed functions of plant GRPs.
二十多年前，人们根据其特定的表达模式和/或受多种生物和非生物因素的调节，首次分离出植物甘氨酸丰富蛋白（GRPs）。该超家族的特征是存在甘氨酸丰富结构域，排列成（Gly）（n）-X 重复。由于存在额外的基序以及甘氨酸重复的性质，将它们分为不同的类别。结构的多样性以及表达模式、调节和亚细胞定位，始终表明这些蛋白质虽然被归类为同一超家族的成员，但在植物体内将发挥不同的功能。直到现在，在对植物 GRPs 进行了首次功能表征后，人们才揭示了它们参与多种生物和生化过程的情况。在这里，我们回顾了迄今为止归因于植物 GRPs 的功能。
