Suppr超能文献

病毒与细胞毒性T淋巴细胞:病毒肽二级结构在主要组织相容性复合体I类相互作用中的关键作用

Virus and cytotoxic T lymphocytes: crucial role of viral peptide secondary structure in major histocompatibility complex class I interactions.

作者信息

Gairin J E, Oldstone M B

机构信息

Laboratoire de Pharmacologie et Toxicologie Fondamentales, Centre National de la Recherche Scientifique, Toulouse, France.

出版信息

J Virol. 1993 May;67(5):2903-7. doi: 10.1128/JVI.67.5.2903-2907.1993.

Abstract

Viral antigens are presented to cytotoxic T lymphocytes (CTLs) by H-2-restricted major histocompatibility complex (MHC) glycoproteins. Binding of the endogenously processed viral peptides (epitopes) to their specific MHC molecules is an early intracellular event in the recognition process and is necessary for subsequent killing of virus-infected cells by virus-specific CTLs. It is now well established that interaction between a viral antigenic peptide and MHC is dependent on the primary structure (length and amino acid sequence) of that antigen. Here we show, using the H-2Db-restricted epitope GP277-286 of lymphocytic choriomeningitis virus as a model, that the secondary structure (conformation) of the viral sequence also plays a crucial role in the binding of a viral antigen to MHC glycoprotein and in its subsequent presentation to virus-specific CTLs.

摘要

病毒抗原通过H-2限制性主要组织相容性复合体(MHC)糖蛋白呈递给细胞毒性T淋巴细胞(CTL)。内源性加工的病毒肽(表位)与其特异性MHC分子的结合是识别过程中的早期细胞内事件,对于随后病毒特异性CTL杀伤病毒感染细胞是必要的。现已充分证实,病毒抗原肽与MHC之间的相互作用取决于该抗原的一级结构(长度和氨基酸序列)。在此,我们以淋巴细胞性脉络丛脑膜炎病毒的H-2Db限制性表位GP277-286为模型,表明病毒序列的二级结构(构象)在病毒抗原与MHC糖蛋白的结合及其随后呈递给病毒特异性CTL的过程中也起着关键作用。

相似文献

引用本文的文献

本文引用的文献

2
Prediction of protein conformation.蛋白质构象预测
Biochemistry. 1974 Jan 15;13(2):222-45. doi: 10.1021/bi00699a002.
5
6
Antigen recognition by class I-restricted T lymphocytes.I类限制性T淋巴细胞的抗原识别
Annu Rev Immunol. 1989;7:601-24. doi: 10.1146/annurev.iy.07.040189.003125.

文献检索

告别复杂PubMed语法,用中文像聊天一样搜索,搜遍4000万医学文献。AI智能推荐,让科研检索更轻松。

立即免费搜索

文件翻译

保留排版,准确专业,支持PDF/Word/PPT等文件格式,支持 12+语言互译。

免费翻译文档

深度研究

AI帮你快速写综述,25分钟生成高质量综述,智能提取关键信息,辅助科研写作。

立即免费体验