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. 1979 Oct;76(10):5110–5113. doi: 10.1073/pnas.76.10.5110

Termination of transcription by bacteriophage T3 RNA polymerase: homogeneous 3'-terminal oligonucleotide sequence of in vitro T3 RNA polymerase transcripts.

H K Majumder, U Maitra, M Rosenberg
PMCID: PMC413089  PMID: 388430

Abstract

RNA was synthesized in vitro from a T3 DNA template by T3 RNA polymerase and subsequently separated into seven discrete size classes (molecular weights ranging between 0.21 x 10(6) and 6.2 x 10(6)) by electrophoresis in polyacrylamide slab gels. RNase T1-generated 3'-terminal oligonucleotide fragments were then selectively isolated from either the unfractionated total RNA or the gel-purified specific transcripts by chromatography on columns of dihydroxyboryl-cellulose. Sequence analysis of these oligonucleotide products indicated that the unfractionated transcripts as well as all the individual major RNA species examined had a unique sequence, (Gp)UpUpUpUpUpGOH, at their 3' termini. The specificity of this sequence, as well as the total lack of any sequence heterogeneity at the ends of these transcripts, indicates a high degree of specificity of termination during transcription in this system.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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