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. 2003 Oct 20;100(22):12596–12600. doi: 10.1073/pnas.2135413100

Fig. 4.

Fig. 4.

PTL structures formed by transloop C1·G5 or U1–G5 base pairing (in bold) in the hexanucleotide loops of several published RNA hairpins. For clarity, several hairpins are truncated at the bottom. BMV, brome mosaic virus sgp hairpin (5); IRE, iron-responsive element from human ferritin L-chain mRNA (26); HCVIIId, domain IIId of the internal ribosome entry site of HCV (21); TAR, transactivation-responsive element of HIV type 1 (17); HBV, encapsidation signal ε of hepatitis B virus (23); Pyr, PyrR-binding RNA hairpin BL2 from Bacillus subtilis (30); 18S rRNA, helix 11 of human 18S rRNA (31); U3sno, hairpin 4 of the U3 small nucleolar RNA from Saccharomyces cerevisiae (33); SFV, 5′-terminal hairpin of R–U5 of simian and human foamy virus (34).