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TCR-pMHC 动力学的变构洞察:理解黑色素瘤相关表位的影响

英文原题:Allosteric Insights into TCR-pMHC Dynamics: Understanding the Effects of Melanoma-Associated Epitopes.

查看英文原题

Allosteric Insights into TCR-pMHC Dynamics: Understanding the Effects of Melanoma-Associated Epitopes.

PubMed 2026/01/27(内容时间) J Chem Inf Model Q1 · IF 6.4(JCR 2025)

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中文摘要

变构是理解蛋白质功能、相互作用和调控的关键现象,涉及配体结合诱导的扰动在分子内远距离位点之间的传递。理解变构机制是阐明信号传递失败及由此导致的疾病的关键。本研究通过深入探究T细胞受体与肽-主要组织相容性复合体相互作用的复杂动力学,为这一理解做出贡献,而TCR与pMHC是生物系统通讯网络中的重要组成部分。本研究旨在揭示黑色素瘤相关肽对变构信号传导的影响,并提供了有价值的见解。对黑色素瘤相关表位结合的TCR-pMHC复合物进行了分子动力学模拟,随后进行了机器学习聚类和网络分析,这种创新性组合有助于识别调节整体动力学和稳定性的关键TCR-pMHC接触,为TCR-pMHC相互作用的复杂动力学提供了新的见解。结果不仅为TCR-pMHC相互作用提供了分子层面的理解,也为免疫治疗和蛋白质工程领域提供了有价值的信息。这些发现为未来的实验研究提供了指导,并增进了我们对黑色素瘤背景下免疫应答的理解。

展开英文摘要原文

Allostery, a crucial phenomenon for comprehending protein function, interactions, and regulation, involves the transmission of perturbations induced by ligand binding to distant sites within a molecule. Understanding the mechanisms of allostery holds the key to elucidating signal transmission failures and diseases resulting from such disruptions.

This study focuses on contributing to this understanding by delving into the intricate dynamics of T-cell receptor and peptide-major histocompatibility complex interactions, which are essential components in the communication network of biological systems. Aiming to reveal the effect of melanoma-associated peptides on allosteric signaling, valuable insights are provided.

Molecular dynamics simulations were performed on melanoma-associated-epitope-bound TCR-pMHC complexes, followed by machine learning clustering and network analysis, where this innovative combination facilitated the identification of critical TCR-pMHC contacts that modulate global dynamics and stability, presenting novel insights into the complex dynamics of TCR-pMHC interactions.

The results not only contributed molecular understanding to TCR-pMHC interactions but also offered valuable information for the fields of immunotherapy and protein engineering. The findings serve as a guide for future experimental investigations and advance our understanding of the immune response in the context of melanoma.

论文信息

作者
Bingol EN、Ozbek P
第一作者单位
Department of Bioengineering, Institute of Pure and Applied Sciences, Marmara University, 34854 Istanbul, Turkey.Turkey
通讯作者单位
Department of Bioengineering, Faculty of Engineering, Marmara University, 34854 Istanbul, Turkey.Turkey
期刊
Journal of chemical information and modeling2026 Feb 9
原文标识
PubMed 41592181 · DOI 10.1021/acs.jcim.5c01536