Specificity mapping of human anti‐T cell receptor monoclonal natural antibodies: defining the properties of epitope recognition promiscuity

Specificity mapping of human anti‐T cell receptor monoclonal natural antibodies: defining the properties of epitope recognition promiscuity
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人抗 T 细胞受体单克隆天然抗体的特异性作图:定义表位识别混杂的特性

DOI:
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发表时间:
2002
期刊:
The FASEB Journal
影响因子:
--
通讯作者:
J. Marchalonis
J. Marchalonis
中科院分区:
--
文献类型:
--
作者:
I. Robey;A. Edmundson;S. Schluter;D. Yocum;J. Marchalonis

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抗体结合的经典概念被定义为与一个表位的排他性和高亲和力的相互作用。然而,关于抗体结合位点的新现实是,一些抗体结合位点可以结合无关的决定因素。通过分析单抗与T细胞受体(T细胞受体)α、β链和免疫球蛋白λ链的完整结构的重叠多肽的结合能力,本文将这种性质定义为表位识别混杂。我们评估了这些单抗与一组与人Vβ基因产物的CDR1段相对应的同源多肽的结合情况,CDR1段是用于选择抗体的主要表位。我们提供了四个人单抗结合TCR表位能力的结合特征的数据。这些单抗是具有胚系构型的VH和VL序列的IgM分子,但具有不同的VH CDR3区域。这些研究旨在表征表位混杂的性质,并表明结合位点与其表位之间的关系是一个复杂的相互作用,仅凭抗原序列是不可预测的。我们的结果支持表位识别混杂是抗体和TCR识别的真正特征的结论。
The classical concept of antibody binding is defined as an exclusive and high‐affinity interaction with one epitope. The emerging reality about antibody combing sites, however, is that some can bind unrelated determinants. The studies presented here define this quality as epitope recognition promiscuity by analyzing the capacity of monoclonal human auto‐antibodies to bind sets of overlapping peptides duplicating the complete structures of T cell receptor (TCR) α and β chains and immunoglobulin λ chain. We assessed the binding of these monoclonal antibodies (mAbs) to a set of homologous peptides corresponding to the CDR1 segments of human Vβ gene products, a major epitope used in the selection of the antibodies. We present data on the binding characteristics of four human mAbs selected for the ability to bind TCR epitopes. These mAbs are IgM molecules with VH and VL sequences in germline configuration, but have diverse VH CDR3 regions. These studies aim to characterize the property of epitope promiscuity and show that the relationship between the binding site and its epitope is a complex interaction and unpredictable from antigen sequence alone. Our results support the conclusion that epitope recognition promiscuity is a genuine feature of antibody and TCR recognition.
人类自身抗体与 T 细胞受体 β 链的合成自身抗原发生反应。
DOI: 10.1073/pnas.89.8.3325
发表时间: 1992
影响因子: 11.1
作者:
Marchalonis,JJ;Kaymaz,H;Dedeoglu,F;Schluter,SF;Yocum,DE;Edmundson,AB
通讯作者: Edmundson,AB
抗免疫球蛋白血清与合成 T 细胞受体肽的反应:对 TCR β 链三维结构和功能的影响。
DOI: 10.1093/intimm/5.5.491
发表时间: 1993
影响因子: 4.4
作者:
Kaymaz,H;Dedeoglu,F;Schluter,SF;Edmundson,AB;Marchalonis,JJ
通讯作者: Marchalonis,JJ
先天抗体中表达的主要 VH 基因与独特的抗原结合位点相关。
DOI: 10.1073/pnas.96.5.2262
发表时间: 1999
影响因子: 11.1
作者:
Seidl,KJ;Wilshire,JA;MacKenzie,JD;Kantor,AB;Herzenberg,LA;Herzenberg,LA
通讯作者: Herzenberg,LA
天然自身反应性抗体和多反应性抗体与 H 链 CDR3 中的抗原诱导抗体不同。
DOI: --
发表时间: 1991
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Chen,C;Stenzel-Poore,MP;Rittenberg,MB
通讯作者: Rittenberg,MB