AtRAB-H1b and AtRAB-H1c GTPases, homologues of the yeast Ypt6, target reporter proteins to the Golgi when expressed in Nicotiana tabacum and Arabidopsis thaliana

Ypt/Rab GTPases act as key regulators of intracellular traffic through the conformational differences exhibited by their GTP or GDP-bound forms. In this paper, two Arabidopsis Ypt6 homologues, AtRAB-H1(b) and AtRAB-H1(c) were characterized and compared. Using a live cell imaging approach, it is show...

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Veröffentlicht in:Journal of experimental botany. - 1985. - 60(2009), 11 vom: 08., Seite 3179-93
1. Verfasser: Johansen, Jorunn Nergaard (VerfasserIn)
Weitere Verfasser: Chow, Cheung-Ming, Moore, Ian, Hawes, Chris
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2009
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Arabidopsis Proteins Recombinant Fusion Proteins Guanosine Triphosphate 86-01-1 Rab-H1b protein, Arabidopsis EC 3.6.1.- Rab-H1c protein, Arabidopsis rab GTP-Binding Proteins EC 3.6.5.2
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100 1 |a Johansen, Jorunn Nergaard  |e verfasserin  |4 aut 
245 1 0 |a AtRAB-H1b and AtRAB-H1c GTPases, homologues of the yeast Ypt6, target reporter proteins to the Golgi when expressed in Nicotiana tabacum and Arabidopsis thaliana 
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520 |a Ypt/Rab GTPases act as key regulators of intracellular traffic through the conformational differences exhibited by their GTP or GDP-bound forms. In this paper, two Arabidopsis Ypt6 homologues, AtRAB-H1(b) and AtRAB-H1(c) were characterized and compared. Using a live cell imaging approach, it is shown that yellow fluorescent protein-fusions (YFP) of AtRAB-H1(b) and AtRAB-H1(c) locate to the Golgi and to the cytosol in both Nicotiana tabacum and in Arabidopsis thaliana. In addition, YFP-AtRAB-H1(b) targets an as yet unknown compartment not labelled by YFP-AtRAB-H1(c) or Golgi markers. It is also shown that the subcellular location of YFP-AtRAB-H1(b) and YFP-AtRAB-H1(c) is affected by the state of GTP-binding and that expression of a GTP-deficient mutant results in increased apoplastic fluorescence of a secretory form of YFP 
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650 7 |a Recombinant Fusion Proteins  |2 NLM 
650 7 |a Guanosine Triphosphate  |2 NLM 
650 7 |a 86-01-1  |2 NLM 
650 7 |a Rab-H1b protein, Arabidopsis  |2 NLM 
650 7 |a EC 3.6.1.-  |2 NLM 
650 7 |a Rab-H1c protein, Arabidopsis  |2 NLM 
650 7 |a EC 3.6.1.-  |2 NLM 
650 7 |a rab GTP-Binding Proteins  |2 NLM 
650 7 |a EC 3.6.5.2  |2 NLM 
700 1 |a Chow, Cheung-Ming  |e verfasserin  |4 aut 
700 1 |a Moore, Ian  |e verfasserin  |4 aut 
700 1 |a Hawes, Chris  |e verfasserin  |4 aut 
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