Lauber E, Jonard G, Richards K, Guilley H
Institut de Biologie Moléculaire des Plantes du CNRS et de l'Université Louis Pasteur, Strasbourg, France.
Arch Virol. 2005 Jul;150(7):1459-67. doi: 10.1007/s00705-005-0516-y. Epub 2005 Mar 17.
Plant viruses containing a Triple Gene Block (TGB) movement protein gene cassette fall into two classes. We have shown previously that the third TGB protein (TGBp3) of beet necrotic yellow vein virus (BNYVV; Class 1) and peanut clump virus (Class 1) inhibit BNYVV intercellular movement when expressed from a co-inoculated BNYVV RNA 3-based replicon. Here we show that autonomous expression of TGBp3's of four other Class 1 viruses of various genera also inhibits BNYVV movement. No such effect was observed for four Class 2 virus TGBp3's, suggesting that the roles of Class 1 and 2 TGBp3's in movement differ significantly.
含有三基因块（TGB）运动蛋白基因盒的植物病毒分为两类。我们之前已经表明，甜菜坏死黄脉病毒（BNYVV；第1类）和花生丛簇病毒（第1类）的第三个TGB蛋白（TGBp3），当从基于BNYVV RNA 3的共接种复制子中表达时，会抑制BNYVV的细胞间运动。在这里我们表明，其他四个不同属的第1类病毒的TGBp3自主表达也会抑制BNYVV的运动。对于四个第2类病毒的TGBp3未观察到这种效应，这表明第1类和第2类TGBp3在运动中的作用存在显著差异。
