Serine/Threonine Kinase 24 (STK24)

STK24 shares 69% amino acid identity with STK25 and is a member of the GCK subfamily of STE20-like proteins. Northern blot analysis revealed ubiquitous expression of a 2.0-kb STK24 transcript, with highest levels detected in heart, skeletal muscle, and pancreas. Western blot analysis detected a 52-kD STK24 protein in all cell lines tested.MST3B encodes a predicted 443-amino acid protein. RT-PCR and Northern blot analyses revealed that expression of the 2.5-kb MST3B transcript is restricted to brain; Western blot analysis confirmed the brain-specific expression. In situ hybridization analysis showed that MST3B is widely expressed in different brain regions, with high levels in hippocampus, cerebral cortex, and hypothalamus, and moderate levels in geniculate nucleus and thalamic nucleus.