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8VSP

Cryo-EM structure of human invariant chain in complex with HLA-DQ

8VSP の概要
エントリーDOI10.2210/pdb8vsp/pdb
EMDBエントリー43501
分子名称HLA class II histocompatibility antigen, DQ alpha 1 chain, HLA class II histocompatibility antigen, DQ beta 1 chain, HLA class II histocompatibility antigen gamma chain, ... (4 entities in total)
機能のキーワードantigen presentation, membrane protein, trimeric complex, immune system
由来する生物種Homo sapiens (human)
詳細
タンパク質・核酸の鎖数9
化学式量合計301564.10
構造登録者
Wang, N.,Caveney, N.A.,Jude, K.M.,Garcia, K.C. (登録日: 2024-01-24, 公開日: 2024-05-08, 最終更新日: 2024-11-06)
主引用文献Wang, N.,Waghray, D.,Caveney, N.A.,Jude, K.M.,Garcia, K.C.
Structural insights into human MHC-II association with invariant chain.
Proc.Natl.Acad.Sci.USA, 121:e2403031121-e2403031121, 2024
Cited by
PubMed Abstract: The loading of processed peptides on to major histocompatibility complex II (MHC-II) molecules for recognition by T cells is vital to cell-mediated adaptive immunity. As part of this process, MHC-II associates with the invariant chain (Ii) during biosynthesis in the endoplasmic reticulum to prevent premature peptide loading and to serve as a scaffold for subsequent proteolytic processing into MHC-II-CLIP. Cryo-electron microscopy structures of full-length Human Leukocyte Antigen-DR (HLA-DR) and HLA-DQ complexes associated with Ii, resolved at 3.0 to 3.1 Å, elucidate the trimeric assembly of the HLA/Ii complex and define atomic-level interactions between HLA, Ii transmembrane domains, loop domains, and class II-associated invariant chain peptides (CLIP). Together with previous structures of MHC-II peptide loading intermediates DO and DM, our findings complete the structural path governing class II antigen presentation.
PubMed: 38687785
DOI: 10.1073/pnas.2403031121
主引用文献が同じPDBエントリー
実験手法
ELECTRON MICROSCOPY (3.12 Å)
構造検証レポート
Validation report summary of 8vsp
検証レポート(詳細版)ダウンロードをダウンロード

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件を2024-11-20に公開中

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