4QRS

Crystal Structure of HLA B*0801 in complex with ELK_IYM, ELKRKMIYM

4QRS の概要

• エントリーDOI: 10.2210/pdb4qrs/pdb
• 関連するPDBエントリー: 4QRP 4QRQ 4QRR 4QRS 4QRT
• 分子名称: HLA class I histocompatibility antigen, B-8 alpha chain, Beta-2-microglobulin, Major immediate-early protein, ... (5 entities in total)
• 機能のキーワード: hla b*0801, cmv, tcr, t cell, immune system
• 由来する生物種: Homo sapiens (human); 詳細
• タンパク質・核酸の鎖数: 3
• 化学式量合計: 45083.88

構造登録者

Gras, S.,Twist, K.-A.,Rossjohn, J. (登録日: 2014-07-02, 公開日: 2014-12-10, 最終更新日: 2024-10-30)

主引用文献

Smith, C.,Gras, S.,Brennan, R.M.,Bird, N.L.,Valkenburg, S.A.,Twist, K.A.,Burrows, J.M.,Miles, J.J.,Chambers, D.,Bell, S.,Campbell, S.,Kedzierska, K.,Burrows, S.R.,Rossjohn, J.,Khanna, R.
Molecular imprint of exposure to naturally occurring genetic variants of human cytomegalovirus on the T cell repertoire.
Sci Rep, 4:3993-3993, 2014

PubMed Abstract: Exposure to naturally occurring variants of herpesviruses in clinical settings can have a dramatic impact on anti-viral immunity. Here we have evaluated the molecular imprint of variant peptide-MHC complexes on the T-cell repertoire during human cytomegalovirus (CMV) infection and demonstrate that primary co-infection with genetic variants of CMV was coincident with development of strain-specific T-cell immunity followed by emergence of cross-reactive virus-specific T-cells. Cross-reactive CMV-specific T cells exhibited a highly conserved public T cell repertoire, while T cells directed towards specific genetic variants displayed oligoclonal repertoires, unique to each individual. T cell recognition foot-print and pMHC-I structural analyses revealed that the cross-reactive T cells accommodate alterations in the pMHC complex with a broader foot-print focussing on the core of the peptide epitope. These findings provide novel molecular insight into how infection with naturally occurring genetic variants of persistent human herpesviruses imprints on the evolution of the anti-viral T-cell repertoire.

PubMed: 24509977
DOI: 10.1038/srep03993

実験手法

X-RAY DIFFRACTION (1.4 Å)