» Articles » PMID: 7443546

Identification of the RNA Region Transferred from a Representative Primer, Beta-globin MRNA, to Influenza MRNA During in Vitro Transcription

Overview
Specialty Biochemistry
Date 1980 Mar 11
PMID 7443546
Citations 21
Authors
Affiliations
Soon will be listed here.
Abstract

Capped eukaryotic mRNAs strongly stimulate influenza viral RNA transcription in vitro and donate their cap and also additional nucleotides to the viral transcripts (1). To identify which bases of a given primer mRNA are transferred, we synthesized influenza viral mRNA using a primer rabbit globin mRNA (enriched in beta-globin mRNA) which had been labeled in vitro to high specific activity with 125I. We show that during transcription the same 125I-labeled oligonucleotides were transferred to the 5' termini of each of the eight viral mRNA segments. The predominant sequence, representing 75 percent of the transferred oligonucleotides, was identical to the first 13 nucleotides at the 5' end of beta-globin mRNA (m7G5'ppp5'm6AmC(m)ACUUGCUUUUG). Because only the C-residues are labeled with 125I, these results indicate that either the first 12, 13 or 14 5' terminal bases of beta-globin mRNA were transferred to the viral mRNAs. 125I-labeled oligonucleotides recovered from the viral mRNA in minor yields indicated that shorter 5' terminal pieces of beta-globin mRNA were sometimes transferred and that G was probably the first base inserted by transcription.

Citing Articles

Role of RNA Polymerase II Promoter-Proximal Pausing in Viral Transcription.

Whelan M, Pelchat M Viruses. 2022; 14(9).

PMID: 36146833 PMC: 9503719. DOI: 10.3390/v14092029.


Sequencing the cap-snatching repertoire of H1N1 influenza provides insight into the mechanism of viral transcription initiation.

Koppstein D, Ashour J, Bartel D Nucleic Acids Res. 2015; 43(10):5052-64.

PMID: 25901029 PMC: 4446424. DOI: 10.1093/nar/gkv333.


Deep sequencing reveals the eight facets of the influenza A/HongKong/1/1968 (H3N2) virus cap-snatching process.

Sikora D, Rocheleau L, Brown E, Pelchat M Sci Rep. 2014; 4:6181.

PMID: 25154590 PMC: 4143772. DOI: 10.1038/srep06181.


Internal initiation of influenza virus replication of viral RNA and complementary RNA in vitro.

Zhang S, Wang J, Wang Q, Toyoda T J Biol Chem. 2010; 285(52):41194-201.

PMID: 20858902 PMC: 3003417. DOI: 10.1074/jbc.M110.130062.


Influenza A: understanding the viral life cycle.

Samji T Yale J Biol Med. 2009; 82(4):153-9.

PMID: 20027280 PMC: 2794490.


References
1.
Robertson H, Dickson E, Model P, Prensky W . Application of fingerprinting techniques to iodinated nucleic acids. Proc Natl Acad Sci U S A. 1973; 70(11):3260-4. PMC: 427212. DOI: 10.1073/pnas.70.11.3260. View

2.
Both G, Air G . Nucleotide sequence coding for the N-terminal region of the matrix protein influenza virus. Eur J Biochem. 1979; 96(2):363-72. DOI: 10.1111/j.1432-1033.1979.tb13048.x. View

3.
Plotch S, KRUG R . Segments of influenza virus complementary RNA synthesized in vitro. J Virol. 1978; 25(2):579-86. PMC: 353971. DOI: 10.1128/JVI.25.2.579-586.1978. View

4.
Bouloy M, Morgan M, Shatkin A, KRUG R . Cap and internal nucleotides of reovirus mRNA primers are incorporated into influenza viral complementary RNA during transcription in vitro. J Virol. 1979; 32(3):895-904. PMC: 525938. DOI: 10.1128/JVI.32.3.895-904.1979. View

5.
Legon S, Robertson H . The binding of 125I-labelled rabbit globin messenger RNA to reticulocyte ribosomes. J Mol Biol. 1976; 106(1):23-36. DOI: 10.1016/0022-2836(76)90298-9. View