d(GGGT) 4 and r(GGGU) 4 are both HIV-1 inhibitors and interleukin-6 receptor aptamers.
Magbanua E, Zivkovic T, Hansen B, Beschorner N, Meyer C, Lorenzen I, Grötzinger J, Hauber J, Torda AE, Mayer G, et al. RNA Biol. 2013 Feb; 10(2):216-27. Epub 2012 Dec 12.