GABA A (rho) receptor activation Authored: Mahajan, SS, 2010-11-08 Edited: D'Eustachio, P, 2010-11-24 GABA A (rho) receptors are highly expressed in the retina and are functional homopentamers of rho subunits. These receptors are formerly called GABA C receptors. Pubmed10637650 Pubmed17398006 Reactome Database ID Release 43977442 Reactome, http://www.reactome.org ReactomeREACT_25168 Reviewed: Restituito, S, 2008-11-27 12:38:49 PathwayStep3380 The GABA(A)-rho receptor complex is permeable to Cl- when GABA binds to it