part of G protein-coupled receptor signaling pathway phototransduction phototransduction, visible light G protein-coupled opsin signaling pathway https://github.com/geneontology/go-ontology/issues/27415 G protein-mediated opsin signaling pathway A G protein-coupled receptor signaling pathway that starts with an opsin being activated by a photon, and ending with the light signal being trasmitted through the synapses. The signal can be transmitted via different Galpha subunits types: Go, Gs, Gq, and Gt. rhodopsin mediated phototransduction Reactome:R-HSA-2514856 rhodopsin signaling rhodopsin mediated signaling pathway biological_process GO:0009586 GO:0016056 rhodopsin mediated signalling pathway cellular response to light stimulus