Plant Rho-type (Rop) GTPase-dependent activation of receptor-like cytoplasmic kinases in vitro

Autor: Judit Bíró, Éva Klement, Manuela E. Jurca, Krisztina Ötvös, Attila Szűcs, Attila Fehér, Dulguun Dorjgotov, Csilla Fodor-Dunai
Rok vydání: 2009
Předmět:
Zdroj: FEBS Letters. 583:1175-1182
ISSN: 0014-5793
DOI: 10.1016/j.febslet.2009.02.047
Popis: Plants have evolved distinct mechanisms to link Rho-type (Rop) GTPases to downstream signaling pathways as compared to other eukaryotes. Here, experimental data are provided that members of the Medicago, as well as Arabidopsis, receptor-like cytoplasmic kinase family (RLCK Class VI) were strongly and specifically activated by GTP-bound Rop GTPases in vitro. Deletion analysis indicated that the residues implicated in the interaction might be distributed on various parts of the kinases. Using a chimaeric Rop GTPase protein, the importance of the Rho-insert region in kinase activation could also be verified. These data strengthen the possibility that RLCKs may serve as Rop GTPase effectors in planta.
Databáze: OpenAIRE