AMY-1 interacts with S-AKAP84 and AKAP95 in the cytoplasm and the nucleus, respectively, and inhibits cAMP-dependent protein kinase activity by preventing binding of its catalytic subunit to A-kinase-anchoring protein (AKAP) complex.

Abstract excerpt

We have reported that a novel c-Myc-binding protein, AMY-1, binds to cAMP-dependent protein kinase-anchoring protein 149 (AKAP149) and its splicing variant, AKAP84 and is localized in the mitochondria in a complex with RII, a regulatory subunit of cAMP-dependent protein kinase (PKA) (Furusawa, M., Ohnishi, T., Taira, T., Iguchi-Ariga, S. M. M., and Ariga, H. (2001) J. Biol. Chem. 276, 36647-36651). In this study,...

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