Abstract
RNA synthesized in vitro by HeLa nuclei contains a variety of blocked methylated 5′-terminal structures that can be grouped into four general types: (a) m7GppNmp...; (b) m7GppNmpMmp...; (c) m7GpppNmp...; and (d) m7GpppNmpMm.... Both Nm and Mm can be either one of the four 2′-O-methylated nucleosides. The relative amounts of the Nm species are G = 45%, A = 25%, U = 20%, and C = 10%.
Keywords: 5′-blocked methylated RNA, nuclear lysate, in vitro synthesis
Full text
PDF
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Both G. W., Banerjee A. K., Shatkin A. J. Methylation-dependent translation of viral messenger RNAs in vitro. Proc Natl Acad Sci U S A. 1975 Mar;72(3):1189–1193. doi: 10.1073/pnas.72.3.1189. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Furuichi Y., Miura K. A blocked structure at the 5' terminus of mRNA from cytoplasmic polyhedrosis virus. Nature. 1975 Jan 31;253(5490):374–375. doi: 10.1038/253374a0. [DOI] [PubMed] [Google Scholar]
- Furuichi Y., Morgan M., Muthukrishnan S., Shatkin A. J. Reovirus messenger RNA contains a methylated, blocked 5'-terminal structure: m-7G(5')ppp(5')G-MpCp-. Proc Natl Acad Sci U S A. 1975 Jan;72(1):362–366. doi: 10.1073/pnas.72.1.362. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Furuichi Y., Morgan M., Shatkin A. J., Jelinek W., Salditt-Georgieff M., Darnell J. E. Methylated, blocked 5 termini in HeLa cell mRNA. Proc Natl Acad Sci U S A. 1975 May;72(5):1904–1908. doi: 10.1073/pnas.72.5.1904. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Jacquet M., Groner Y., Monroy G., Hurwitz J. The in vitro synthesis of avian myeloblastosis viral RNA sequences. Proc Natl Acad Sci U S A. 1974 Aug;71(8):3045–3049. doi: 10.1073/pnas.71.8.3045. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Lavi S., Shatkin A. J. Methylated simian virus 40-specific RNA from nuclei and cytoplasm of infected BSC-1 cells. Proc Natl Acad Sci U S A. 1975 Jun;72(6):2012–2016. doi: 10.1073/pnas.72.6.2012. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Lewin B. Units of transcription and translation: the relationship between heterogeneous nuclear RNA and messenger RNA. Cell. 1975 Jan;4(1):11–20. doi: 10.1016/0092-8674(75)90128-2. [DOI] [PubMed] [Google Scholar]
- Perry R. P., Kelley D. E., Friderici K., Rottman F. The methylated constituents of L cell messenger RNA: evidence for an unusual cluster at the 5' terminus. Cell. 1975 Apr;4(4):387–394. doi: 10.1016/0092-8674(75)90159-2. [DOI] [PubMed] [Google Scholar]
- Reddy R., Ro-Choi T. S., Henning D., Busch H. Primary sequence of U-1 nuclear ribonucleic acid of Novikoff hepatoma ascites cells. J Biol Chem. 1974 Oct 25;249(20):6486–6494. [PubMed] [Google Scholar]
- Rottman F., Shatkin A. J., Perry R. P. Sequences containing methylated nucleotides at the 5' termini of messenger RNAs: possible implications for processing. Cell. 1974 Nov;3(3):197–199. doi: 10.1016/0092-8674(74)90131-7. [DOI] [PubMed] [Google Scholar]
- Svensson I., Patel V. J. A rapid assay technique for RNA ribose methylases. Nucleic Acids Res. 1975 Apr;2(4):603–611. doi: 10.1093/nar/2.4.603. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Urushibara T., Furuichi Y., Nishimura C., Miura K. A modified structure at the 5'-terminus of mRNA of vaccinia virus. FEBS Lett. 1975 Jan 1;49(3):385–389. doi: 10.1016/0014-5793(75)80791-5. [DOI] [PubMed] [Google Scholar]
- Wei C. M., Gershowitz A., Moss B. Methylated nucleotides block 5' terminus of HeLa cell messenger RNA. Cell. 1975 Apr;4(4):379–386. doi: 10.1016/0092-8674(75)90158-0. [DOI] [PubMed] [Google Scholar]
- Wei C. M., Moss B. Methylated nucleotides block 5'-terminus of vaccinia virus messenger RNA. Proc Natl Acad Sci U S A. 1975 Jan;72(1):318–322. doi: 10.1073/pnas.72.1.318. [DOI] [PMC free article] [PubMed] [Google Scholar]