Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At4g38430	Guanine-nucleotide exchange factor (GEF) that acts as an activator of Rop (Rho of plants) GTPases by promoting the exchange of GDP for GTP.	Members of a novel class of Arabidopsis Rho guanine nucleotide exchange factors control Rho GTPase-dependent polar growth.; 2006; DOI: 10.1105/tpc.105.036434; PMID: 16415208; https://pubmed.ncbi.nlm.nih.gov/16415208/ | ROPGEF1 and ROPGEF4 are functional regulators of ROP11 GTPase in ABA-mediated stomatal closure in Arabidopsis.; 2012; DOI: 10.1016/j.febslet.2012.03.040; PMID: 22500990; https://pubmed.ncbi.nlm.nih.gov/22500990/ | AtPRK2 promotes ROP1 activation via RopGEFs in the control of polarized pollen tube growth.; 2013; DOI: 10.1093/mp/sss103; PMID: 23024212; https://pubmed.ncbi.nlm.nih.gov/23024212/