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. 2002 Apr 16;99(8):5331–5336. doi: 10.1073/pnas.082102199

Figure 1.

Figure 1

Different representations of the HIV-1 frameshift signal. (A) Simple stem loop proposed by Jacks et al. (11) and investigated by Wilson et al. (10) and Parkin et al. (27). (B) RNA Pseudoknot proposed by Du et al. (29). (C) RNA pseudoknot proposed by Taylor et al. (33). (D) Intramolecular triplex structure proposed in this study.