Copyright information:Taken from "Complex interactions of HIV-1 nucleocapsid protein with oligonucleotides"Nucleic Acids Research 2006;34(2):472-484.Published online 24 Jan 2006PMCID:PMC1351370.© The Author 2006. Published by Oxford University Press. All rights reserved () Control 5 µM (TG), providing a 2470.46 Da experimental mass (2470.44 Da monoisotopic mass calculated from sequence, for a ∼8 p.p.m. mass accuracy). The signal labeled −G corresponds to a product in which a deoxyguanine is formally replaced by deoxyribose (observed decremental mass of ∼133 Da). D indicates (TG)/(TG)-G dimeric species. () Mixture containing 5 µM each of (TG) and NC. NC provided a mass of 6488.89 Da (6488.91 Da monoisotopic from sequence), while the 1:1 NO complex was 8959.33 Da (8959.35 Da monoisotopic from sequence). () Sample containing 5 µM (TG) and 15 µM NC. The 1:2 NON complex provided a mass of 15 447.93 Da (15 448.25 Da monoisotopic from sequence).