Background The ubiquitin 26S/proteasome system (UPS), a serial cascade process of
protein ubiquitination and degradation, is the last step for most cellular proteins. There are …

Genome amplification and sequence divergence provides raw materials to allow organismal
adaptation. This is exemplified by the large expansion of the ubiquitin-26S proteasome …

Background Plants respond to abiotic stress on physiological, biochemical and molecular
levels. This includes a global change in their cellular proteome achieved by changes in the …

Plants, like other eukaryotes, rely on proteolysis to control the abundance of key regulatory
proteins and enzymes. Strikingly, genome-wide studies have revealed that the ubiquitin-26S …

Summary Ubiquitin (Ub) and Ub‐like proteins, collectively forming the ubiquiton family,
regulate nearly all aspects of cellular processes via post‐translational modifications. Studies …

The majority of proteins in eukaryotic cells are modified according to highly regulated
mechanisms to fulfill specific functions and to achieve localization, stability, and transport …

Ubiquitin (Ub) is a small peptide that is covalently attached to proteins in a posttranslational
reaction. Ubiquitination is a precise regulatory system that is present in all eukaryotic …

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 …

Background Protein ubiquitination is a ubiquitous mechanism in eukaryotes. In Arabidopsis,
ubiquitin modification is mainly mediated by two ubiquitin activating enzymes (E1s), 37 …

Ubiquitin is a 76 amino acid polypeptide common to all eukaryotic organisms. It functions as
a post-translationally modifying mark covalently linked to a large cohort of yet poorly defined …