Fig. 6.

Schematic representation of the S segment of wild-type and mutated ZH viruses and their N and NSs mRNAs. The genome, antigenome, N, and NSs mRNAs of ZH₅₄₈ and mutant RVFVs are represented. The 5′ cap structure of the viral mRNAs is indicated. The 5′-GCUGC-3′ and 5′-GCAGC-3′ motifs are located on the genome and antigenome, shown by black and white boxes. The distance between the transcription termination signal and the codon stop is shown. The overlapping sequences at the 3′ ends of N and NSs mRNAs are also indicated.