XLG3 (EXTRA-LARGE GTP-BINDING PROTEIN 3); signal transducer. similar to XLG1 (EXTRA-LARGE G-PROTEIN 1), signal transducer [Arabidopsis thaliana] (TAIR:AT2G23460.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO63310.1); similar to G-protein alpha subunit, putative, expressed [Oryza sativa (japonica cultivar-group)] (GB:ABA91995.1); similar to hypothetical protein OsI_034254 [Oryza sativa (indica cultivar-group)] (GB:EAY80295.1); contains InterPro domain Guanine nucleotide binding protein (G-protein), alpha subunit; (InterPro:IPR001019); contains InterPro domain G protein alpha subunit, helical insertion; (InterPro:IPR011025)