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RNA structure disrupting G320-T transversion within the short fragment of the 5' untranslated region prevents rescue of infectious foot-and-mouth disease virus

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Title RNA structure disrupting G320-T transversion within the short fragment of the 5' untranslated region prevents rescue of infectious foot-and-mouth disease virus
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Creator Jajati K Mohapatra
Laxmi K Pandey
Bramhadev Pattnaik
 
Subject FMD virusInfectious cDNA clone5′-end stem-loop structureRNA replication
 
Description Not Available
A full-length cDNA clone of an Indian foot-and-mouth disease virus strain, Asia 1 IND 491/1997 was assembled downstream of the T7 promoter in the pBluescript II SK ( + ) vector by sequential ligation of four PCR-generated subgenomic fragments. RNA transcribed from that construct were transfected into BHK-21 and LFBK cells to rescue infectious virus. The in vitro growth kinetics, plaque morphology, infectivity titer, antigenic profile and virulence characteristics in unweaned mice infected with the recombinant virus were comparable to those infected with the parental virus. However, repeated attempts to recover viable virus from the RNA transcripts with a G320-T point mutation introduced in the short fragment of the 5′ untranslated region failed. The possible destabilizing effect of such a mutation on the predicted long stem-loop structure at the 5′-end of the genome and its implications for viral genome replication are discussed.
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Date 2022-12-16T15:23:05Z
2022-12-16T15:23:05Z
2014-02
 
Type Research Paper
 
Identifier Mohapatra JK, Pandey LK, Pattnaik B. RNA structure disrupting G320-T transversion within the short fragment of the 5' untranslated region prevents rescue of infectious foot-and-mouth disease virus. J Virol Methods. 2014 Feb;196:100-3. doi: 10.1016/j.jviromet.2013.11.007. Epub 2013 Nov 21. PMID: 24269793.
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http://krishi.icar.gov.in/jspui/handle/123456789/75215
 
Language English
 
Relation Not Available;
 
Publisher Elsevier