Arabidopsis RABA1 GTPases are involved in transport between the trans-Golgi network and the plasma membrane, and are required for salinity stress tolerance.
Asaoka R, Uemura T, Ito J, Fujimoto M, Ito E, Ueda T, Nakano A. Plant J. 2013 Jan; 73(2):240-9. Epub 2012 Nov 23.