Plant cells regulate many cellular processes controlling the half-life of critical proteins through ubiquitination. Previously, we characterized two interacting RING-type E3 ubiquitin ligases of Triticum durum, TdRF1 and WVIP2. We revealed their role in tolerance to dehydration, andexisting knowledge about their partners also indicated theirinvolvement in the regulation of some aspects of plant development.Here we located WVIP2 in the regulation of the ABA signaling, based on sequence similarities. Further we acquiredgeneral evidence about the versatility of ubiquitination in plant cells. A protein can be target of different E3 ligases for a perfect tuning of its abundanceas well as the same E3 ligase can ubiquitinate different and unrelated proteins, thus representing a cross-connections between different signaling pathways for a global coordination of cellular processes.
|Autori:||Guerra, D;Cattivelli, L;Mazzucotelli, E;|
|Data di pubblicazione:||2012|
|Titolo:||The ubiquitin ligase WVIP2 highlights the versatility of protein ubiquitination|
|Rivista:||PLANT SIGNALING & BEHAVIOR|
|Appare nelle tipologie:||1.1 Articolo in rivista|