Nucleic Acids Research, 1978, Vol. 5, No. 1 195-204
© 1978
Articles |
Two initiation sites for adenovirus 5.5S RNA
Department of Microbiology, Biomedical Center, Uppsala University Uppsala, Sweden
Received October 31, 1977.
Adenovirus specific 5.5S RNA is heterogeneous at its 5' terminus. Complete pancreatic RNase digests of the RNA reveal a 5' terminal oligonucleotide (pp)pApGpCp in addition to the major 5' terminal (pp)pGpGpGpCp (1). Both 5' termini are detected early as well as late after adenovirus infection. In isolated nuclei,
-amanitin inhibits all 5.5S RNA transcription at a concentration of 200 µg/ml, indicating that both initiation sites are recognized by RNA polyrnerase III.