Retinal rod and cone cGMP phosphodiesterases function as the effector enzymes in the vertebrate visual transduction cascade. This family represents the inhibitory gamma subunit [1], which is also expressed outside retinal tissues and has been shown to interact with the G-protein-coupled receptor kinase 2 signalling system to regulate the epidermal growth factor- and thrombin-dependent stimulation of p42/p44 mitogen-activated protein kinase in human embryonic kidney 293 cells [2].
Muradov KG, Granovsky AE, Schey KL, Artemyev NO.
Direct interaction of the inhibitory gamma-subunit of Rod cGMP phosphodiesterase (PDE6) with the PDE6 GAFa domains.
Biochemistry 41 3884-90 2002
[PubMed: 11900530] http://dx.doi.org/10.1021/bi015935m
2.
Wan KF, Sambi BS, Frame M, Tate R, Pyne NJ.
The inhibitory gamma subunit of the type 6 retinal cyclic guanosine monophosphate phosphodiesterase is a novel intermediate regulating p42/p44 mitogen-activated protein kinase signaling in human embryonic kidney 293 cells.
J. Biol. Chem. 276 37802-8 2001
[PubMed: 11502744] http://intl.jbc.org/cgi/content/full/276/41/37802
Slep KC, Kercher MA, He W, Cowan CW, Wensel TG, Sigler PB.
Structural determinants for regulation of phosphodiesterase by a G protein at 2.0 A.
Nature 409 2001 1071-7
[PubMed: 11234020] http://dx.doi.org/10.1038/35059138