part of membrane protein complex rod photoreceptor disc membrane rod photoreceptor phosphodiesterase 6 complex https://github.com/geneontology/go-ontology/issues/31081 rod photoreceptor PDE6 complex A heterotetrameric cGMP phosphodiesterase complex found in the disc membranes of rod photoreceptor outer segments. It consists of two catalytic subunits, PDE6A and PDE6B, and two inhibitory gamma-subunits, PDE6G. In response to activation by transducin, the complex hydrolyzes cyclic GMP, thereby mediating the light-induced closure of cGMP-gated ion channels during rod phototransduction. GO:7770030 cellular_component rod PDE6 complex dragon-ai-agent