
T1-UP termination ability is influenced by position of the upstream stop codon. (A) Model BUNV segment BUN-T697 was modified by inserting a stop codon 121 nt upstream to generate BUN-T-STOP. (B) Direct analysis of RNAs synthesized by BUN-T697 and BUN-T-STOP using agarose-urea gel electrophoresis showed T1-UP activity was increased when ribosome translocation was blocked upstream.










