首页> 美国卫生研究院文献>other >Mapping the Interactions of Dengue Virus NS1 Protein with Human Liver Proteins Using a Yeast Two-Hybrid System: Identification of C1q as an Interacting Partner
【2h】

Mapping the Interactions of Dengue Virus NS1 Protein with Human Liver Proteins Using a Yeast Two-Hybrid System: Identification of C1q as an Interacting Partner

机译:映射登革病毒Ns1蛋白与人类肝脏蛋白质的相互作用使用酵母双杂交系统:C1q的鉴定为相互作用配偶

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

Dengue constitutes a global health concern. The clinical manifestation of this disease varies from mild febrile illness to severe hemorrhage and/or fatal hypovolemic shock. Flavivirus nonstructural protein 1 (NS1) is a secreted glycoprotein that is displayed on the surface of infected cells but is absent in viral particles. NS1 accumulates at high levels in the plasma of dengue virus (DENV)-infected patients, and previous reports highlight its involvement in immune evasion, dengue severity, liver dysfunction and pathogenesis. In the present study, we performed a yeast two-hybrid screen to search for DENV2 NS1-interacting partners using a human liver cDNA library. We identified fifty genes, including human complement component 1 (C1q), which was confirmed by coimmunoprecipitation, ELISA and immunofluorescence assays, revealing for the first time the direct binding of this protein to NS1. Furthermore, the majority of the identified genes encode proteins that are secreted into the plasma of patients, and most of these proteins are classified as acute-phase proteins (APPs), such as plasminogen, haptoglobin, hemopexin, α-2-HS-glycoprotein, retinol binding protein 4, transferrin, and C4. The results presented here confirm the direct interaction of DENV NS1 with a key protein of the complement system and suggest a role for this complement protein in the pathogenesis of DENV infection.
机译:登革热是全球性的健康问题。这种疾病的临床表现从轻度的高热疾病到严重的出血和/或致命的低血容量性休克不等。黄病毒非结构蛋白1(NS1)是一种分泌的糖蛋白,显示在受感染细胞的表面,但在病毒颗粒中却不存在。 NS1在感染登革热病毒(DENV)的患者血浆中高水平积累,以前的报道强调了它与免疫逃逸,登革热严重程度,肝功能障碍和发病机理有关。在本研究中,我们进行了酵母双杂交筛选,以使用人肝cDNA文库搜索与DENV2 NS1相互作用的伴侣。我们鉴定了五十个基因,包括人补体成分1(C1q),该基因已通过免疫共沉淀,ELISA和免疫荧光测定法确认,首次揭示了该蛋白与NS1的直接结合。此外,大多数已鉴定的基因编码分泌到患者血浆中的蛋白质,并且这些蛋白质中的大多数被分类为急性期蛋白质(APPs),例如纤溶酶原,触珠蛋白,血红素,α-2-HS-糖蛋白,视黄醇结合蛋白4,转铁蛋白和C4。此处显示的结果证实了DENV NS1与补体系统关键蛋白的直接相互作用,并暗示了该补体蛋白在DENV感染的发病机理中的作用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号