Cloning and characterization of UL34 gene of pseudorabies virus HB isolate

Cloning and characterization of UL34 gene of pseudorabies virus HB isolate
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伪狂犬病病毒HB分离株UL34基因的克隆及鉴定

DOI:
10.1007/s11859-017-1240-7
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发表时间:
2017-05
影响因子:
--
通讯作者:
WEI Wenqiang
WEI Wenqiang
中科院分区:
--
文献类型:
--
作者:
WANG Hongju;XIONG Wei;WEI Wenqiang

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在这项研究中,通过对参与核衣壳从细胞核中流出的保守基因UL34的部分扩增和测序,对伪狂犬病病毒(PRV)的中国分离株进行了系统发育分析,并进行了基因型表征。 PRV HB分离物UL34的开放阅读框(orf)由786个核苷酸组成,编码262个氨基酸。此外,在PRV HB分离物的UL34中还发现了一个潜在的跨膜结构域(241-260个氨基酸)和11个潜在的磷酸化位点。多重氨基酸比对表明,不同产地PRV毒株的UL34蛋白高度保守,但也发现了一些突变。 此外,PRV HB分离株与α疱疹病毒亚科的BoHV-1和BoHV-5具有密切的进化关系。总而言之,这些结果表明 PRV 毒株正在进化过程中。这项研究扩展了对 PRV 毒株遗传谱的了解。
In this study, China isolate HB of pseudorabies virus (PRV) was confirmed and genotypically characterized by amplifying and sequencing of partial UL34, a conservative gene involved in the egress of nucleocapsids from the nucleus, for phylogenetic analysis. The open reading frame (orf) of UL34 of PRV HB isolate is composed of 786 nucleotides, which encoded 262 amino acids. In addition, a potential transmembrane domain (241-260 aa) and 11 potential phosphorylation sites were also found in the UL34 of PRV HB isolate. Multiple amino acids alignment indicated that UL34 proteins of PRV strains derived from different geographic origins were highly conservative, but some mutations were also found. Moreover, PRV HB isolate had close evolutionary relationship with BoHV-1 and BoHV-5 within the Alphaherpesvirinae. Taken together, these results indicated that PRV strains were in the progress of evolution. This study has expanded the knowledge of genetic profiles of PRV strains.
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