ＴＣＲ－多肽－ＭＨＣ三元复合物作为Ｔ细胞与抗原递呈细胞或靶细胞相互作用中发挥抗原信号传递的构件，它们之间的相互作用完成了免疫应答早期和效应时相的抗原识别，这些相互作用是多方面的，包括ＭＨＣ对多肽的特异结合，ＴＣＲ对多肽、ＭＨＣ分子的识别等，提出以多肽为中心的ＴＣＲ－多肽－ＭＨＣ相互作用，就多肽对它们的作用结局进行多肽的功能分类。 The TCR-polypeptide-MHC ternary complex acts as a means of antigen signaling in the interaction of T cells with antigen-presenting cells or target cells and the interaction between them completes the antigen recognition of the early and effector phases of the immune response Interactions are multifaceted, including specific binding of MHC to peptides, recognition of peptides and MHC molecules by TCRs, and propose peptide-centric TCR-polypeptide-MHC interactions for peptides to function on their role as peptides classification.