Abstract:
:The 5' end of the subgenomic RNA of rubella virus was determined by primer extension. The Maxam-Gilbert sequence ladder of the primer extension product contained a determinable sequence which was colinear with the complement of the sequence of the genomic RNA through nucleotide 3325 from the 3' end of the genomic RNA and a pair of bands in every lane above the determinable sequence. These results indicated that synthesis of the subgenomic RNA is initiated internally on the minus-polarity genome-length RNA template and that the length of subgenomic RNA is 3327 nucleotides excluding the poly(A) tail. There are thus 77 nucleotides between the 5' end of the subgenomic RNA and the first AUG, which is the initiation codon for the structural protein open reading frame. The initiation site of rubella virus subgenomic RNA synthesis is 20 nucleotides downstream from a block of 28 nucleotides which shares homology with the nucleotide sequence which is conserved at the subgenomic RNA initiation site in the Alphaviruses, the other genus of Togaviruses.
journal_name
Virologyjournal_title
Virologyauthors
Frey TK,Marr LD,Sanchez A,Simmons RBdoi
10.1016/0042-6822(89)90422-4subject
Has Abstractpub_date
1989-01-01 00:00:00pages
191-4issue
1eissn
0042-6822issn
1096-0341journal_volume
168pub_type
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