Data from: Gα and regulator of G-protein signaling (RGS) protein pairs maintain functional compatibility and conserved interaction interfaces throughout evolution despite frequent loss of RGS proteins in plants

Dieter Hackenberg, Michael McKain, Soon-Goo Lee, Swarup Roy Choudhury, Tyler McCann, Spencer Schreier, Alex Harkess, J. Chris Pires, Gane Ka-Shu Wong, Joseph Jez, Elizabeth Kellogg, Sona Pandey, Soon Goo Lee, Joseph M. Jez, Michael R. McKain & Elizabeth A. Kellogg
Signaling pathways regulated by heterotrimeric G-proteins exist in all eukaryotes. The regulator of G-protein signaling (RGS) proteins are key interactors and critical modulators of the Gα protein of the heterotrimer. However, while G-proteins are widespread in plants, RGS proteins have been reported to be missing from the entire monocot lineage, with two exceptions. A single amino acid substitution-based adaptive coevolution of the Gα:RGS proteins was proposed to enable the loss of RGS in monocots. We...
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