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PMID: 671588 Published · ppublish English Journal Article Research Support, U.S. Gov't, P.H.S.

Soluble endoribonuclease activity from vaccinia virus: specific cleavage of virion-associated high-molecular-weight RNA.

Journal of virology ·Vol. 26 ·No. 3 ·1978-06-00 ·Pages 822-4

Paoletti E, Lipinskas BR

Abstract

A soluble endoribonuclease activity was extracted from purified vaccinia virus cores by treatment with sodium-deoxycholate and dithiothreitol. The soluble enzyme readily cleaved purified virion-associated high-molecular-weight RNA to limit-sized fragments sedimenting at 8 to 12S. Purified virion-released 8 to 12S polyadenylated mRNA was not degraded by the enzyme extract. The soluble endoribonuclease did not require the presence of ribonucleoside triphosphates for activity.

MeSH Terms
Endonucleases/metabolism Molecular Weight RNA, Viral/metabolism Ribonucleases/metabolism Solubility Substrate Specificity Vaccinia virus/enzymology
Chemicals
RNA, Viral Endonucleases Ribonucleases
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Paoletti E
Lipinskas B R
References (7)
7 references, click to expand
  1. High molecular weight virion-associated RNA of vaccinia. A possible precursor to 8 to 12 S mRNA.
    J Biol Chem. 1977 Feb 10;252(3):872-7 PMID: 838702
  2. Transcriptional complexity of vaccinia virus in vivo and in vitro.
    J Virol. 1977 Sep;23(3):608-15 PMID: 894791
  3. Methyl group analysis of virion-associated high-molecular-weight RNA synthesized in vitro by purified vaccinia virus.
    J Virol. 1977 Jul;23(1):110-6 PMID: 886646
  4. In vitro synthesis of a high molecular weight virion-associated RNA by vaccinia.
    J Biol Chem. 1977 Feb 10;252(3):866-71 PMID: 838701
  5. Two nucleid acid-dependent nucleoside triphosphate phosphohydrolases from vaccinia virus. Purification and characterization.
    J Biol Chem. 1974 May 25;249(10):3273-80 PMID: 4364421
  6. An intermediate in the synthesis of poliovirus RNA.
    Proc Natl Acad Sci U S A. 1966 Aug;56(2):741-8 PMID: 4291014
  7. Ribonucleic acid synthesis in vaccinia virus. I. The mechanism of synthesis and release of RNA in vaccinia cores.
    J Mol Biol. 1970 May 28;50(1):1-18 PMID: 5453356
Article Info
Journal
Journal of virology
Abbr.
J Virol
ISSN
0022-538X
Published
1978-06-00
Pages
822-4
Language
English
Region
United States
NLM ID
0113724
PMCID
PMC525908
Subset
IM
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