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Predicted secondary RNA structures of the cloned BCV region. Predictions were made in the context of both the 190-nt (nt 42 to 232 in Fig. 2) and 291-nt (nt 1 to 291) RNAs. Only nt 59 to 200 (Fig. 2) are shown for simplicity. Arrows indicate the position of the 69-nt region that shares homology with the MHV packaging signal.
