Table 1.
Dopamine Receptor Subtype | G protein-coupled receptor kinase | References |
---|---|---|
D1R (in differentiated kidney cells) (in embryonic kidney cells) |
GRK2, GRK4 (GRK4α and GRK4γ in humans#, GRK4E in rats) GRK2, GRK3, GRK4α but not GRK4γ, GRK5* |
53, 112, 121–123 113, 114 |
(in intestines but not kidney cells) | GRK6 | 120, 124 |
D2R | GRK2, GRK3, GRK5, GRK6 | 73, 148, 149 |
D3R (in kidney cells) | GRK2, GRK3, GRK4γ>GRK4α | 129, 151 |
D4R | GRK2 or GRK3? | 73 |
D5R | ? |
GRK5 increased agonist-dependent phosphorylation of rat D1R one report (114), but not in another report (113). GRK4α and GRK4γ desensitize the human D1R (112) while GRK4α but not GRKγ desensitizes the rat D1R (113).
?unknown or not definite