AUTHOR=Gingerich Derek J. , Hellmann Hanjo , Christians Matthew J. , Stone Sophia L. TITLE=Editorial: Structure, Function, and Evolution of E3 Ligases and Targets JOURNAL=Frontiers in Plant Science VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2021.767281 DOI=10.3389/fpls.2021.767281 ISSN=1664-462X