Department of Microbiology and Immunology, Institute of Geriatric Immunology, School of Medicine, Jinan University, Guangzhou, China.
Guangdong-Hong Kong-Macau Great Bay Area Geroscience Joint Laboratory, Guangzhou, China.
STAR Protoc. 2022 Mar 9;3(1):101206. doi: 10.1016/j.xpro.2022.101206. eCollection 2022 Mar 18.
Major histocompatibility complex (MHC) tetramers can work as diagnostic tools to identify antigen-specific T cells in immunological research and monitoring. Here, we provide a general protocol for the production of MHC tetramer. We obtain highly pure N-terminal His-tagged HLA-A2 α chain and β2-microglobulin (βm) to fold a monomer with a photocleavable peptide, which can exchange with an HLA-A2 presented peptide derived from influenza A virus. Further those monomers compose tetramer to stain antigen-specific CD8 T cells. For complete details on the use and execution of this protocol, please refer to Xiao C.C. et al. (2021).
主要组织相容性复合体 (MHC) 四聚体可用作免疫研究和监测中鉴定抗原特异性 T 细胞的诊断工具。本研究提供了 MHC 四聚体生产的一般方案。本方案中获得了高纯度的 N 端组氨酸标签的 HLA-A2α链和β2-微球蛋白 (βm),以折叠具有光裂解肽的单体,该单体可与来自流感 A 病毒的 HLA-A2 呈递肽交换。进一步将这些单体组装成四聚体以染色抗原特异性 CD8 T 细胞。有关此方案使用和执行的详细信息,请参阅 Xiao C.C. 等人。(2021)。