Two initiation sites for adenovirus 5.5S RNA
- PMID: 643608
- PMCID: PMC341971
- DOI: 10.1093/nar/5.1.195
Two initiation sites for adenovirus 5.5S RNA
Abstract
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, alpha-amanitin inhibits all 5.5S RNA transcription at a concentration of 200 microgram/ml, indicating that both initiation sites are recognized by RNA polymerase III.
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