CST, 35573S, 2’,3’-cGAMP (sodium salt)

Product Usage Information
2',3'-cGAMP (sodium salt) is supplied as a lyophilized powder. For a 5 mM stock, reconstitute 500 μg of powder in 139 μl of DMSO. Working concentrations and length of treatment can vary depending on the desired effect.
Storage
Store lyophilized at -20ºC, desiccated. In lyophilized form, the chemical is stable for 24 months. Once in solution, continue to store at -20ºC and use within 1 month to prevent loss of potency. Aliquot to avoid multiple freeze/thaw cycles.
Background
2',3'-cGAMP (sodium salt), also known as 2',3'-cyclic-GMP-AMP, is a second messenger produced by the enzyme cGAMP synthase (cGAS) in response to cytoplasmic DNA (1,2). cGAMP binds and activates the stimulator of interferon genes (STING), a transmembrane adaptor protein that is a critical component of the cellular innate immune response to pathogenic cytoplasmic DNA (1-4). The binding affinity of 2',3'-cGAMP to STING is stronger than other cyclic di-nucleotides such as c-di-GMP, 3′2′-cGAMP, 3′3′-cGAMP, and 2′2′-cGAMP with a reported K value of 3.79 nM compared to 1.21 μM, 1.61 μM, 1.04 μM, and 287 nM, respectively (5).
Alternate Names
2'-3'-Cyclic GMP-AMP; Guanosine-Adenosine 2',3'-cyclic monophosphate