Hobbie Lawrence J
Department of Biology, Adelphi University, Garden City, NY 11530, USA.
Trends Plant Sci. 2006 Nov;11(11):517-8. doi: 10.1016/j.tplants.2006.09.003. Epub 2006 Oct 9.
Polar localization of the Arabidopsis auxin influx facilitator protein AUX1 in certain cell types is essential for normal root gravitropism and lateral root formation. Sunethra Dharmasiri and colleagues recently reported that this polar localization requires the activity of the AXR4 gene. The sequence of the AXR4 gene suggests that novel mechanisms could be important for targeting certain proteins to specific cellular locations.
拟南芥生长素内流促进蛋白AUX1在某些细胞类型中的极性定位对于正常的根向地性和侧根形成至关重要。苏内特拉·达马西里及其同事最近报道，这种极性定位需要AXR4基因的活性。AXR4基因的序列表明，新机制可能对于将某些蛋白质靶向特定细胞位置很重要。
