Variation in auxin sensing guides AUX/IAA transcriptional repressor ubiquitylation and destruction
Subfunctionalization of duplicated genes (ohnologs) is known to occur through eventual differential gene regulation/expression and sequence divergence. Winkler et al. explore the example of the negative regulators of auxin signaling, AUX/IAA proteins IAA6 and IAA19 and how their divergent structures in the ubiquitinated and unstructured regions flanking the domain II degron differs between the two […]