G-Protein-Coupled Receptor Kinase 4

**Definition:** A G-protein-coupled receptor kinase subtype that is primarily expressed in the TESTES and BRAIN. Variants of this subtype exist due to multiple alternative splicing of its mRNA.

**Tree numbers:** - D08.811.913.696.620.682.700.364.550 - D12.776.476.563.364.550

**Synonyms:** - GRK4 Kinase