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乙型肝炎病毒表面抗原T131N/M133T变异株糖基化和抗原性研究 被引量:1

Effects of T131N/M133T substitutions in hepatitis B virus surface antigen on glycosylation and antigenicity
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摘要 为探讨乙型肝炎病毒表面抗原(HBsAg)T131N/M133T变异株的糖基化和抗原性,本研究构建了T131N/M133T变异的HBsAg过表达质粒,将质粒转染细胞,用蛋白免疫印迹法检测HBsAg表达和糖基化情况,用酶联免疫吸附试验(ELISA)和免疫荧光法检测HBsAg的抗原性。结果显示,T131N/M133T变异使HBsAg产生了新的N-糖基化修饰,该变异质粒转染细胞内HBsAg水平显著低于野生型,上清液中HBsAg水平也有一定程度降低。结果提示,T131N/M133T变异使HBsAg发生了新的N-糖基化修饰,该变异产生的糖基化可能影响HBsAg的胞内稳定性,对HBsAg的抗原性也有一定影响。 To study the impact of T131N/M133T substitutions in hepatitis B virus surface antigen (HBsAg) , the proteins expressed in Huh7 and HeLa cells were subjected to Western blotting , enzyme‐linked immunosorbent assay (ELISA ) and immunofluorescence (IF ) staining . The results showed that T131N/M133T substitutions created a new site for N‐glycosylation . The detected level of T131N/M133T was significantly low ,indicating a potential negative impact on stability and antigenicity of HBsAg .
出处 《微生物与感染》 2015年第2期82-86,共5页 Journal of Microbes and Infections
基金 国家自然科学基金(81271833) "十二五"国家科技重大专项(2013ZX10002001 2012ZX10002007-001-002) 国家重大新药创制科技重大专项(2012ZX09303004-001)
关键词 乙型肝炎病毒表面抗原 T131N/M133T 糖基化 抗原性 Hepatitis B virus surface antigen T131N/M133T Glycosylation Antigenicity
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