somatostatin receptor 4, Smstr4, Somatostatin receptor type 4, SS 4R, SS4R, SST R4, SSTR 4, SSTR4, SSR4_HUMAN.
Receptor for somatostatin-14. The activity of this receptor is mediated by G proteins which inhibits adenylyl cyclase. It is functionally coupled not only to inhibition of adenylate cyclase, but also to activation of both arachidonate release and mitogen-activated protein (MAP) kinase cascade. Mediates antiproliferative action of somatostatin in tumor cells.