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ARF1 and SAR1 GTPases in Endomembrane Trafficking in Plants
Plant Molecular Biology Laboratory, Genetic Engineering and Biotechnology Institute, Marmara Research Center, The Scientific and Technical Research Council of Turkey, TUBITAK, P.O. Box: 21, Gebze 41470, Kocaeli, Turkey
Received: 30 March 2013; in revised form: 19 August 2013 / Accepted: 20 August 2013 / Published: 5 September 2013
Abstract: Small GTPases largely control membrane traffic, which is essential for the survival of all eukaryotes. Among the small GTP-binding proteins, ARF1 (ADP-ribosylation factor 1) and SAR1 (Secretion-Associated RAS super family 1) are commonly conserved among all eukaryotes with respect to both their functional and sequential characteristics. The ARF1 and SAR1 GTP-binding proteins are involved in the formation and budding of vesicles throughout plant endomembrane systems. ARF1 has been shown to play a critical role in COPI (Coat Protein Complex I)-mediated retrograde trafficking in eukaryotic systems, whereas SAR1 GTPases are involved in intracellular COPII-mediated protein trafficking from the ER to the Golgi apparatus. This review offers a summary of vesicular trafficking with an emphasis on the ARF1 and SAR1 expression patterns at early growth stages and in the de-etiolation process.
Keywords: GTPases; vesicular trafficking; ARF1; SAR1; COPI; COPII
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MDPI and ACS Style
Cevher-Keskin, B. ARF1 and SAR1 GTPases in Endomembrane Trafficking in Plants. Int. J. Mol. Sci. 2013, 14, 18181-18199.
Cevher-Keskin B. ARF1 and SAR1 GTPases in Endomembrane Trafficking in Plants. International Journal of Molecular Sciences. 2013; 14(9):18181-18199.
Cevher-Keskin, Birsen. 2013. "ARF1 and SAR1 GTPases in Endomembrane Trafficking in Plants." Int. J. Mol. Sci. 14, no. 9: 18181-18199.