The protein ubiquitin is a covalent modifier of proteins, including itself. The ubiquitin system
encompasses the enzymes required for catalysing attachment of ubiquitin to substrates as …

▪ Abstract Much of plant physiology, growth, and development is controlled by the selective
removal of short-lived regulatory proteins. One important proteolytic pathway involves the …

Cell cycle regulation is of pivotal importance for plant growth and development. Although
plant cell division shares basic mechanisms with all eukaryotes, plants have evolved novel …

The posttranslational addition of ubiquitin (Ub) helps control the half-life, localization, and
action of many intracellular plant proteins. A primary function is the degradation of …

The plant hormone ethylene regulates a wide range of developmental processes and the
response of plants to stress and pathogens. Genetic studies in Arabidopsis led to a partial …

Abstract Approximately 5% of the Arabidopsis (Arabidopsis thaliana) proteome is predicted
to be involved in the ubiquitination/26S proteasome pathway. The majority of these …

Abstract The Arabidopsis SLY1 (SLEEPY1) gene positively regulates gibberellin (GA)
signaling. Positional cloning of SLY1 revealed that it encodes a putative F-box protein. This …

The importance of the ubiquitin-proteasome pathway to cellular regulation in eukaryotes has
become increasingly apparent during the last several years. This fact was formally …

Background The covalent attachment of ubiquitin to a substrate protein changes its fate.
Notably, proteins typically tagged with a lysine48-linked polyubiquitin chain become …

Plants use a repertoire of methods to control the level and activity of their constituent
proteins. One method, whose prominence is only now being appreciated, is selective protein …