Fig. 3
From: Two 3′ proximal hairpins play a key role in the replication of wheat yellow mosaic virus
Core cis-elements within the RNA1 3′UTR involved in the in vitro transcription system. a Mutations within the RNA1 3′ UTR. b In vitro transcription of mutant of 3′ UTRs by NIb. The numbers under the RNA quantification indicate the RNA-level of the complementary strand synthesized by MBP-NIb, and the numbers in brackets indicate the STEV