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The Acidic A-Domain of Arabidopsis Toc159 Occurs as a Hyperphosphorylated Protein

Agne, Birgit ; Andrès, Charles ; Montandon, Cyril ; Christ, Bastien ; Ertan, Anouk ; Jung, Friederike ; Infanger, Sibylle ; Bischof, Sylvain ; Baginsky, Sacha ; Kessler, Felix

In: Plant Physiology, 2010, vol. 53, no. 3, p. 1016-1030

The translocon at the outer membrane of the chloroplast assists the import of a large class of preproteins with amino-terminal transit sequences. The preprotein receptors Toc159 and Toc33 in Arabidopsis (Arabidopsis thaliana) are specific for the accumulation of abundant photosynthetic proteins. The receptors are homologous GTPases known to be regulated by phosphorylation within their...