Mutations in the genome of porcine reproductive and respiratory syndrome virus responsible for the attenuation phenotype.
Mutations in the genome of porcine reproductive and respiratory syndrome virus responsible for the attenuation phenotype.
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DOI:
10.1007/s007050070115
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发表时间:
2000
影响因子:
2.7
通讯作者:
Osorio FA
中科院分区:
文献类型:
--
作者:
Allende R;Kutish GF;Laegreid W;Lu Z;Lewis TL;Rock DL;Friesen J;Galeota JA;Doster AR;Osorio FA
Although live-attenuated vaccines have been used for some time to control clinical symptoms of the porcine reproductive and respiratory syndrome (PRRS), the molecular bases for the attenuated phenotype remain unclear. We had previously determined the genomic sequence of the pathogenic PRRSV 16244B. Limited comparisons of the structural protein coding sequence of an attenuated vaccine strain have shown 98% homology to the pathogenic 16244B. Here we have confirmed the attenuated phenotype and determined the genomic sequence of that attenuated PRRSV vaccine and compared it to its parental VR-2332 and the 16244B strains. The attenuated vaccine sequence was colinear with that of the strain 16244B sequence containing no gaps and 212 substitutions over 15,374 determined nucleotide sequence. We identified nine amino acid changes distributed in Nsp1β, Nsp2, Nsp10, ORF2, ORF3, ORF5 and ORF6. These changes may provide the molecular bases for the observed attenuated phenotype.
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影响因子:
5.4
作者:
van Dinten, LC;Rensen, S;Snijder, EJ
通讯作者:
Snijder, EJ
影响因子:
3.8
作者:
Pirzadeh, B;Dea, S
通讯作者:
Dea, S
影响因子:
5.4
作者:
LIAO, CL;LAI, MMC
通讯作者:
LAI, MMC
影响因子:
5.4
作者:
Nelsen, CJ;Murtaugh, MP;Faaberg, KS
通讯作者:
Faaberg, KS
DOI:
10.1073/pnas.80.1.70
发表时间:
1983-01-01
期刊:
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES
影响因子:
--
作者:
DIETZSCHOLD, B;WUNNER, WH;KOPROWSKI, H
通讯作者:
KOPROWSKI, H