2'3'-c-di-AM(PS)2(Rp,Rp) (VAdv-Ly0022)
2'3'-c-di-AM(PS)2(Rp, Rp), analog of c-di-AMP, a STING agonist vaccine adjuvant.
Formula
C20H22N10O10P2S2▪2Na
Specificity
Th1/Th2 response
Percentage
≥ 95% by LC/MS
Endotoxin
Lower than 5 EU/mg.
Introduction
2'3'-c-di-AM(PS)2 (Rp, Rp) is the Rp, Rp-isomer of the 2'3'bisphosphorothioate analog of 3'3'-cyclic adenosine monophosphate (c-di-AMP). It has a higher affinity for STING than c-di-AMP due to the presence of a 2'-5', 3'-5' mixed linkage. In addition, this analog contains two phosphorothioate diester linkages to protect it against degradation by phosphodiesterases that are present in host cells or in the systemic circulation.
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