The molecule is an oligonucleotide comprised of three adenosine residues linked 2'->5' and with a triphosphate group at the 5' terminus. It has a role as a protein synthesis inhibitor.
[[[(2R,3R,4R,5R)-5-(6-aminopurin-9-yl)-4-[[(2R,3R,4R,5R)-5-(6-aminopurin-9-yl)-4-[[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-oxidophosphoryl]oxy-3-hydroxyoxolan-2-yl]methoxy-oxidophosphoryl]oxy-3-hydroxyoxolan-2-yl]methoxy-oxidophosphoryl]oxy-oxidophosphoryl] phosphate