Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Primer extension analysis of the ORF 73 transcription initiation start site. Total RNA was isolated from A549 cells (lane 1) or HVS-infected A549 cells (lane 2) and hybridized to a 32P-labeled oligomer homologous to the ORF 73 coding region. Primer extension was performed, and the primer extension products were run on a 6% acrylamide–7 M urea gel and visualized by exposure to X-ray film.
