Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1985 Aug 12;13(15):5591-609.
doi: 10.1093/nar/13.15.5591.

Exon mutations that affect the choice of splice sites used in processing the SV40 late transcripts

M B Somasekhar, J E Mertz
Free PMC article

Exon mutations that affect the choice of splice sites used in processing the SV40 late transcripts

M B Somasekhar et al. Nucleic Acids Res. .
Free PMC article

Abstract

The spliced species of late SV40 RNAs present in the cytoplasm of cells infected with various wild-type and mutant strains of SV40 that differ in their leader regions were determined using a novel modification of the primer extension method and the S1 nuclease mapping technique. These data indicated that mutations within the first exon of the late RNAs can affect dramatically the utilization of downstream donor and acceptor splice sites. In one instance, a ten base pair insertion within the predominant first exon increased utilization of an infrequently utilized donor splice site such that the small alteration became part of an intervening sequence, thereby suggesting a novel mechanism for regulation of gene expression. In addition, our method enabled detection of a previously unidentified spliced species, representing less than one percent of the SV40 late 19S RNA present in cells infected with wild-type virus, that may be an intermediate in the synthesis of a known doubly spliced 16S RNA species of SV40.

PubMed Disclaimer

Similar articles

See all similar articles

Cited by

See all "Cited by" articles

References

    1. J Virol. 1974 Jun;13(6):1263-73 - PubMed
    1. Cell. 1984 Mar;36(3):581-91 - PubMed
    1. Proc Natl Acad Sci U S A. 1975 Jul;72(7):2587-91 - PubMed
    1. J Virol. 1976 Mar;17(3):832-40 - PubMed
    1. Proc Natl Acad Sci U S A. 1977 Feb;74(2):496-500 - PubMed

Publication types