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. 2021 Jan;64(1):59–68. doi: 10.1165/rcmb.2020-0392OC

Figure 7.

Figure 7.

Summary of signaling pathway. A diagram of the signaling pathway of OPN3 through Gαs, which increases cAMP through AC. Increases in cAMP activates PKA, which can promote several downstream pathways of ASM relaxation. GRK2 is activated through PKA, thereby regulating OPN3 signaling. αs = Gαs; AC = adenylyl cyclase.