Elucidating cyclic AMP signaling in subcellular domains with optogenetic tools and fluorescent biosensors. (14th November 2019)

• Record Type: Journal Article
• Authors: Klausen, Christina; Kaiser, Fabian; Stüven, Birthe; Hansen, Jan N.; Wachten, Dagmar
• Is Part Of: Biochemical Society transactions. Volume 47:Number 6(2019)
• Page Start: 1733
• Page End: 1747
• Publication Date: 2019-11-14
• Subjects: biosensors -- cAMP -- optogenetics; Biochemistry -- Congresses; 572
• DOI: 10.1042/BST20190246
• Languages: English
• ISSNs: 0300-5127

Abstract

Abstract : The second messenger 3′, 5′-cyclic nucleoside adenosine monophosphate (cAMP) plays a key role in signal transduction across prokaryotes and eukaryotes. Cyclic AMP signaling is compartmentalized into microdomains to fulfil specific functions. To define the function of cAMP within these microdomains, signaling needs to be analyzed with spatio-temporal precision. To this end, optogenetic approaches and genetically encoded fluorescent biosensors are particularly well suited. Synthesis and hydrolysis of cAMP can be directly manipulated by photoactivated adenylyl cyclases (PACs) and light-regulated phosphodiesterases (PDEs), respectively. In addition, many biosensors have been designed to spatially and temporarily resolve cAMP dynamics in the cell. This review provides an overview about optogenetic tools and biosensors to shed light on the subcellular organization of cAMP signaling.