Université de Neuchâtel

AtToc90, a New GTP-Binding Component of the Arabidopsis Chloroplast Protein Import Machinery

Hiltbrunner, Andreas ; Grünig, Kathrin ; Alvarez-Huerta, Mayte ; Infanger, Sibylle ; Bauer, Jörg ; Kessler, Felix

In: Plant Molecular Biology, 2004, vol. 54, p. 427 - 440

AtToc159 is a GTP-binding chloroplast protein import receptor. In vivo, atToc159 is required for massive accumulation of photosynthetic proteins during chloroplast biogenesis. Yet, in mutants lacking atToc159 photosynthetic proteins still accumulate, but at strongly reduced levels whereas non-photosynthetic proteins are imported normally: This suggests a role for the homologues of atToc159...