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. Author manuscript; available in PMC: 2014 Jun 10.
Published in final edited form as: Regul Pept. 2013 Mar 27;184:96–103. doi: 10.1016/j.regpep.2013.03.028

Figure 7. Pathway mediating muscle contraction by melatonin.

Figure 7

In gastric smooth muscle, melatonin interacts with MT1 receptors, which is coupled to stimulation of phosphoinositide-specific phospholipase C (PLC-β) via Gq. Stimulation of PLC-β activity results in the generation of inositol 1,4,5-trisphosphate (IP3) and IP3-dependent Ca2+ release leading to muscle contraction.