cAMP-dependent protein kinase catalytic subunit PRKX
Synonyms
PrKX, Protein kinase X, Protein kinase X-linked, Serine/threonine-protein kinase PRKX, Protein kinase PKX1 | PKX1
Primary ID
P51817
Links
- -
Type
protein
Relations
1
Function
Serine/threonine protein kinase regulated by and mediating cAMP signaling in cells. Acts through phosphorylation of downstream targets that may include CREB, SMAD6 and PKD1 and has multiple functions in cellular differentiation and epithelial morphogenesis. Regulates myeloid cell differentiation through SMAD6 phosphorylation. Involved in nephrogenesis by stimulating renal epithelial cell migration and tubulogenesis. Also involved in angiogenesis through stimulation of endothelial cell proliferation, migration and vascular-like structure formation.
The possibility of functional interactions between pkd1-encoded polycystin-1 and prkx was suggested by the renal co-distribution of prkx and polycystin-1 and the binding and phosphorylation of the c-terminal of polycystin-1 by prkx at s4166 in vitro. Taken together these results suggest that prkx can reverse the abnormalities in epithelial adhesion, migration and morphogenesis associated with pkd1 inhibition and cyst formation in adpkd.