Figure 12
Illustration of RNA duplexes with pyrimidine–purine and purine–purine pairs with (a)/(c) antiparallel-stranded (aps) and (b)/(d) parallel-stranded (ps) orientations. Notes: Cyt = cytosine, Gua = guanine, iCyt = isocytosine, z5Gua = 5-aza-7-deazaguanine and iGua = isoguanine. |