TCR/pMHC Optimized Protein crystallization Screen.

TCR/pMHC Optimized Protein crystallization Screen.
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DOI:
10.1016/j.jim.2012.06.007
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发表时间:
2012-08-31
影响因子:
2.2
通讯作者:
Cole, David K.
Cole, David K.
中科院分区:
医学4区
文献类型:
--
作者:
Bulek, Anna M.;Madura, Florian;Fuller, Anna;Holland, J.;Schauenburg, Andrea J. A.;Sewell, Andrew K.;Rizkallah, Pierre J.;Cole, David K.

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T细胞表面表达的克隆型αβ T细胞受体(TCR)与靶细胞表面表达的肽-主要组织相容性复合物(pMHC)分子之间的相互作用控制T细胞介导的自身免疫和针对病原体和癌症的免疫。这种相互作用的结构研究受到限制,因为在生产高质量的TCR/pMHC蛋白质晶体中存在固有的挑战。在这里,我们报告了一种“智能设计”的结晶屏幕的发展,可重复地产生高品质的TCR/pMHC复合物晶体适合X射线晶体学研究,从而减少蛋白质的消耗。在过去的两年中,我们已经实施了这种筛选,以高分辨率产生了32种T细胞相关蛋白质结构,为当前的免疫蛋白质数据库做出了重大贡献。用于研究这种相互作用的蛋白质晶体学已经扩展了我们对控制T细胞免疫的分子规则的理解。随后,这些数据可能有助于指导针对人类疾病的基于T细胞的疗法的智能设计,强调开发用于结晶新型TCR/pMHC复合物的优化方法的重要性。
The interaction between the clonotypic αβ T cell receptor (TCR), expressed on the T cell surface, and peptide-major histocompatibility complex (pMHC) molecules, expressed on the target cell surface, governs T cell mediated autoimmunity and immunity against pathogens and cancer. Structural investigations of this interaction have been limited because of the challenges inherent in the production of good quality TCR/pMHC protein crystals. Here, we report the development of an ‘intelligently designed’ crystallization screen that reproducibly generates high quality TCR/pMHC complex crystals suitable for X-ray crystallographic studies, thereby reducing protein consumption. Over the last 2 years, we have implemented this screen to produce 32 T cell related protein structures at high resolution, substantially contributing to the current immune protein database. Protein crystallography, used to study this interaction, has already extended our understanding of the molecular rules that govern T cell immunity. Subsequently, these data may help to guide the intelligent design of T cell based therapies that target human diseases, underlining the importance of developing optimized approaches for crystallizing novel TCR/pMHC complexes.
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影响因子: --
作者:
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影响因子: 30.5
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发表时间: 2003-09-01
期刊: PROTEIN ENGINEERING
影响因子: --
作者:
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通讯作者: Jakobsen, BK
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发表时间: 2012-01-15
期刊: Nature immunology
影响因子: 30.5
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