L* Protein of Theiler's Murine Encephalomyelitis Virus Is Required for Virus Growth in a Murine Macrophage-Like Cell Line

L* Protein of Theiler's Murine Encephalomyelitis Virus Is Required for Virus Growth in a Murine Macrophage-Like Cell Line
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泰勒氏鼠脑脊髓炎病毒的 L* 蛋白是病毒在鼠巨噬细胞样细胞系中生长所必需的

DOI:
10.1128/jvi.74.10.4898-4901.2000
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发表时间:
2000
影响因子:
5.4
通讯作者:
Y. Ohara
Y. Ohara
中科院分区:
医学2区
文献类型:
--
作者:
M. Obuchi;Jiro Yamamoto;T. Odagiri;M. N. Uddin;H. Iizuka;Y. Ohara

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我们试图证实L蛋白对泰勒氏小鼠脑脊髓炎病毒在巨噬细胞样细胞系J774-1中生长的重要性。该蛋白在TMEV DA亚组毒株中合成,但在GDVII亚组毒株中不合成。重组病毒DANCL*/GD用DA5‘非编码区和L*编码区取代相应的GDVI区,合成L*蛋白,在J774-1细胞中生长几乎没有限制。相反,另一种重组病毒DANCL*-1/GD生长不佳,其1079位L*蛋白的起始密码子为ACG而不是AUG,导致不合成L*蛋白。两种病毒对J774-1细胞的吸附速率无显著差异。核糖核酸酶保护实验表明,DANCL*/gD病毒RNA显著增加,而DANCL*-1/gD病毒RNA仅有少量增加。本研究提示L蛋白是病毒在巨噬细胞中生长所必需的。
We sought to confirm the importance of L* protein for growth ofTheiler's murine encephalomyelitis virus (TMEV) in a macrophage-like cell line, J774-1. The protein is out of frame with the polyprotein and synthesized in DA but not GDVII subgroup strains of TMEV. A recombinant virus, DANCL*/GD, which substitutes the DA 5′ noncoding and L* coding regions for the corresponding regions of GDVII and synthesizes L* protein, grew with little restriction in J774-1 cells. In contrast, another recombinant virus, DANCL*-1/GD, which has an ACG rather than an AUG as the starting codon of L* protein at nucleotide 1079, resulting in no synthesis of L* protein, did not grow well. No significant difference between the rates of adsorption to J774-1 cells of these viruses was observed. RNase protection assay demonstrated that DANCL*/GD viral RNA significantly increased, whereas only a minimal increase was observed for DANCL*-1/GD. The present study suggests that L* protein is required for virus growth in macrophages.
泰勒病毒选择性启动蛋白抑制 H-2K 限制性病毒特异性细胞毒性的产生。
DOI: --
发表时间: 1999
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Lin,X;Roos,RP;Pease,LR;Wettstein,P;Rodriguez,M
通讯作者: Rodriguez,M
基于神经毒力 GDVII 和毒力较低的 BeAn 毒株的基因组比较,深入了解泰勒病毒神经毒力。
DOI: 10.1016/0042-6822(88)90652-6
发表时间: 1988
期刊: Virology
影响因子: 3.7
作者:
Pevear,DC;Borkowski,J;Calenoff,M;Oh,CK;Ostrowski,B;Lipton,HL
通讯作者: Lipton,HL
泰勒病毒感染中的抗体反应:多发性硬化症的新视角。
DOI: --
发表时间: 1987
期刊: Progress in medical virology. Fortschritte der medizinischen Virusforschung. Progres en virologie medicale
影响因子: --
作者:
Ohara,Y;Roos,R
通讯作者: Roos,R