Diversity of heterotrimeric G-protein γ subunits in plants.

ABSTRACT:

Background

Heterotrimeric G-proteins, consisting of three subunits Gα, Gβ and Gγ are present in most eukaryotes and mediate signaling in numerous biological processes. In plants, Gγ subunits were shown to provide functional selectivity to G-proteins. Three unconventional Gγ subunits were recently reported in Arabidopsis, rice and soybean but no structural analysis has been reported so far. Their relationship with conventional Gγ subunits and taxonomical distribution has not been yet demonstrated.

Results

After an extensive similarity search through plant genomes, transcriptomes and proteomes we assembled over 200 non-redundant proteins related to the known Gγ subunits. Structural analysis of these sequences revealed that most of them lack the obligatory C-terminal prenylatio

SUBMITTER: Trusov Y 

PROVIDER: S-EPMC3508898 | biostudies-literature | 2012 Oct

REPOSITORIES: biostudies-literature