Free fatty acid receptor 4 (Ffar4)

Receptor for moderate and long-chain free fatty acids (FFAs). Signals via a G(q)/G(11)-coupled pathway.

Acts as a receptor for omega-3 fatty acids and mediates robust anti- inflammatory effects, particularly in macrophages and fat cells. The anti-inflammatory effects include inhibition of TAK1 by means of a beta-arrestin 2 (ARRB2)/TAB1-dependent effect, but independent of the G(q)/G(11)-coupled pathway.