Different cAMP sources are critically involved in G protein–coupled receptor CRHR1 signaling

Carolina Inda,Paula A. dos Santos Claro,J. Bonfiglio,S. Senin,G. Maccarrone,C. Turck,S. Silberstein

Published 2016 in Journal of Cell Biology

ABSTRACT

G protein–coupled receptor CRHR1 activates both soluble adenylyl cyclase (sAC) and transmembrane adenylyl cyclases. Here, Inda et al. show that only sAC activity is essential for internalization-dependent cAMP and sustained ERK1/2 activation responses, revealing a functional association between sAC-generated cAMP and endosome-based G protein–coupled receptor signaling.

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