Protein phosphorylation and ubiquitination are two of the most commonly studied post-translational modifications of proteins in eukaryotes. While previous studies have recorded several ubiquitinated proteins in plants, few ubiquitinated membrane-localized proteins have been identified.
In a recent study, Queen’s Biology Assistant Professor Dr. Jacqueline Monaghan, former Queen’s Biology MSc students Katherine Dunning and Lauren Grubb, and collaborators, describe the large-scale identification of ubiquitination sites on Arabidopsis (Arabidopsis thaliana) proteins associated with or integral to the plasma membrane, including over 100 protein kinases.
The researchers’ work is an important contribution to plant molecular biology, cataloguing hundreds of in vivoubiquitination sites on plasma membrane proteins. To learn more, read their article in Plant Physiology.
This research is co-authored by Paul Derbyshire, Cyril Zipfel, and Frank L.H. Menke (University of East Anglia, Norwich, United Kingdom).
