Article
E3 Ubiquitin Ligase SPL2 Is a Lanthanide-Binding Protein.
International journal of molecular sciences - 27 May 2021
Tracz Michał, Górniak Ireneusz, Szczepaniak Andrzej, Białek Wojciech
Abstract excerpt
The SPL2 protein is an E3 ubiquitin ligase of unknown function. It is one of only three types of E3 ligases found in the outer membrane of plant chloroplasts. In this study, we show that the cytosolic fragment of SPL2 binds lanthanide ions, as evidenced by fluorescence measurements and circular dichroism spectroscopy. We also report that SPL2 undergoes conformational changes upon binding of both Ca2+ and La3+, as...
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