The molecule is a double-stranded DNA polynucleotide comprising in one strand a repeating sequence of two thymidine residues and and one deoxycytidine residue, with in a complementary strand a repeating sequence of one deoxyguanosine residue and two deoxyadenosine residues, all residues in each strand being connected by 3'->5' phosphodiester linkages. It contains a poly[d(TTC)] and a poly[d(GAA)].
[(2R,3S,5R)-5-(6-amino-1,4-dihydropurin-9-yl)-2-[[[(2R,3S,5R)-5-(2-amino-6-oxo-1H-purin-9-yl)-2-(phosphonooxymethyl)oxolan-3-yl]oxy-hydroxyphosphoryl]oxymethyl]oxolan-3-yl] [(2R,3S,5R)-5-(6-aminopurin-9-yl)-3-hydroxyoxolan-2-yl]methyl hydrogen phosphate;[(2R,3S,5R)-3-[[(2R,3S,5R)-5-(4-amino-2-oxopyrimidin-1-yl)-3-hydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methyl [(2R,3S,5R)-5-(5-methyl-2,4-dioxopyrimidin-1-yl)-2-(phosphonooxymethyl)oxolan-3-yl] hydrogen phosphate