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データを開く
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基本情報
登録情報 | データベース: PDB / ID: 8vrw | ||||||
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タイトル | Cryo-EM structure of human invariant chain in complex with HLA-DR15 | ||||||
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![]() | IMMUNE SYSTEM / Antigen presentation / membrane protein / trimeric complex | ||||||
機能・相同性 | ![]() negative regulation of peptide secretion / macrophage migration inhibitory factor signaling pathway / NOS2-CD74 complex / MHC class II protein binding, via antigen binding groove / antigen processing and presentation of endogenous antigen / positive regulation of dendritic cell antigen processing and presentation / negative regulation of T cell differentiation / macrophage migration inhibitory factor binding / positive regulation of macrophage migration inhibitory factor signaling pathway / protein trimerization ...negative regulation of peptide secretion / macrophage migration inhibitory factor signaling pathway / NOS2-CD74 complex / MHC class II protein binding, via antigen binding groove / antigen processing and presentation of endogenous antigen / positive regulation of dendritic cell antigen processing and presentation / negative regulation of T cell differentiation / macrophage migration inhibitory factor binding / positive regulation of macrophage migration inhibitory factor signaling pathway / protein trimerization / macrophage migration inhibitory factor receptor complex / positive regulation of cytokine-mediated signaling pathway / regulation of interleukin-4 production / regulation of interleukin-10 production / myeloid dendritic cell antigen processing and presentation / antigen processing and presentation of endogenous peptide antigen via MHC class II / T cell activation involved in immune response / autolysosome membrane / positive regulation of prostaglandin biosynthetic process / regulation of T-helper cell differentiation / T cell selection / positive regulation of type 2 immune response / positive regulation of CD4-positive, CD25-positive, alpha-beta regulatory T cell differentiation / host-mediated suppression of symbiont invasion / MHC class II receptor activity / negative thymic T cell selection / positive regulation of CD4-positive, alpha-beta T cell activation / MHC class II protein binding / antigen processing and presentation of peptide or polysaccharide antigen via MHC class II / negative regulation of mature B cell apoptotic process / positive regulation of T cell mediated immune response to tumor cell / positive regulation of kinase activity / positive regulation of memory T cell differentiation / positive regulation of monocyte differentiation / positive thymic T cell selection / inflammatory response to antigenic stimulus / vacuole / CD4 receptor binding / cytokine receptor activity / positive regulation of neutrophil chemotaxis / positive regulation of chemokine (C-X-C motif) ligand 2 production / intermediate filament / prostaglandin biosynthetic process / positive regulation of macrophage cytokine production / positive regulation of T cell differentiation / T-helper 1 type immune response / regulation of macrophage activation / transport vesicle membrane / negative regulation of intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / nitric-oxide synthase binding / antigen processing and presentation / Translocation of ZAP-70 to Immunological synapse / Phosphorylation of CD3 and TCR zeta chains / cytokine binding / negative regulation of DNA damage response, signal transduction by p53 class mediator / polysaccharide binding / negative regulation of type II interferon production / humoral immune response / immunoglobulin mediated immune response / : / Generation of second messenger molecules / macrophage differentiation / immunological synapse / Co-inhibition by PD-1 / response to type II interferon / epidermis development / positive regulation of insulin secretion involved in cellular response to glucose stimulus / detection of bacterium / T cell receptor binding / positive regulation of chemokine production / negative regulation of T cell proliferation / positive regulation of B cell proliferation / multivesicular body / protein folding chaperone / MHC class II antigen presentation / lysosomal lumen / negative regulation of cell migration / trans-Golgi network membrane / lumenal side of endoplasmic reticulum membrane / positive regulation of interleukin-8 production / Cell surface interactions at the vascular wall / intracellular protein transport / protein tetramerization / peptide antigen assembly with MHC class II protein complex / negative regulation of inflammatory response to antigenic stimulus / MHC class II protein complex / clathrin-coated endocytic vesicle membrane / ER to Golgi transport vesicle membrane / antigen processing and presentation of exogenous peptide antigen via MHC class II / positive regulation of immune response / positive regulation of T cell activation / peptide antigen binding / structural constituent of cytoskeleton / positive regulation of T cell mediated cytotoxicity / positive regulation of interleukin-6 production / cognition / positive regulation of fibroblast proliferation / Interferon gamma signaling / MHC class II protein complex binding / endocytic vesicle membrane 類似検索 - 分子機能 | ||||||
生物種 | ![]() | ||||||
手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.03 Å | ||||||
![]() | Wang, N. / Caveney, N.A. / Jude, K.M. / Garcia, K.C. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural insights into human MHC-II association with invariant chain. 著者: Nan Wang / Deepa Waghray / Nathanael A Caveney / Kevin M Jude / K Christopher Garcia / ![]() 要旨: 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 ...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. | ||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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ダウンロードとリンク
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ダウンロード
PDBx/mmCIF形式 | ![]() | 291.3 KB | 表示 | ![]() |
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PDB形式 | ![]() | 218.7 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 1.1 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.1 MB | 表示 | |
XML形式データ | ![]() | 60 KB | 表示 | |
CIF形式データ | ![]() | 86.9 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 43488MC ![]() 8vspC M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 ( |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
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リンク
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集合体
登録構造単位 | ![]()
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要素
#1: タンパク質 | 分子量: 32418.971 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() #2: タンパク質 | 分子量: 33768.199 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() #3: タンパク質 | 分子量: 34901.906 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() Has protein modification | Y | |
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-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
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EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
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試料調製
構成要素 | 名称: Trimeric complex of invariant chain associated with HLA-DRA1 and HLA-DRB1 タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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分子量 | 値: 0.33 MDa / 実験値: YES |
由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: Mammalia (両生類) |
緩衝液 | pH: 8 |
試料 | 濃度: 5 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
試料支持 | グリッドの材料: GOLD / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: Quantifoil R1.2/1.3 |
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 281 K |
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電子顕微鏡撮影
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TITAN KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 1000 nm |
撮影 | 電子線照射量: 60 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
CTF補正 | タイプ: NONE |
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3次元再構成 | 解像度: 3.03 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 391922 / 対称性のタイプ: POINT |
原子モデル構築 | プロトコル: AB INITIO MODEL |