The plant U‐box (PUB) protein functions as an E3 ligase to poly‐ubiquitinate a target protein
for its degradation or post‐translational modification. Here, we report functional roles for …

Ubiquitin-mediated proteolysis is an integral part of diverse cellular functions, and of the
three enzymes involved in linking ubiquitin to protein targets, the E3 ubiquitin ligases are of …

Ubiquitination is involved in diverse cellular processes in higher plants. In this report, we
describe Arabidopsis thaliana PUB22 and PUB23, two homologous U-box–containing E3 …

Background In plants, the ubiquitin-proteasome system is emerging as a significant
regulatory system throughout the plant lifecycle. The ubiquitination of a target protein …

Posttranslational modifications add complexity and diversity to cellular proteomes. One of
the most prevalent modifications across eukaryotes is ubiquitination, which is orchestrated …

Ubiquitination is a major type of post-translational modification of proteins in eukaryotes. The
plant U-Box (PUB) E3 ligase is the smallest family in the E3 ligase superfamily, but plays a …

The plant U-box (PUB) proteins function as E3 ligases to poly-ubiquitinate the target proteins
for their degradation or post-translational modification. PUBs also play important roles in …

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 …

The U-box motif is a conserved domain found in the diverse isoforms of E3 ubiquitin ligase
in eukaryotes. From water-stressed hot pepper (Capsicum annuum L. cv Pukang) plants, we …

U-box proteins, as well as other proteins involved in regulated protein degradation, are
apparently over-represented in Arabidopsis compared with other model eukaryotes. The …