+
データを開く
-
基本情報
| 登録情報 | データベース: PDB / ID: 7phr | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| タイトル | Structure of a fully assembled T-cell receptor engaging a tumor-associated peptide-MHC I | |||||||||||||||||||||||||||
要素 |
| |||||||||||||||||||||||||||
キーワード | IMMUNE SYSTEM / T-cell receptor / TCR / Major Histocompatibility Complex / MHC / Antigen / Adaptive Immunity / Cancer / Complex | |||||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報regulation of lymphocyte apoptotic process / gamma-delta T cell receptor complex / Fc-gamma receptor III complex / positive regulation of melanin biosynthetic process / T cell anergy / melanin biosynthetic process / positive regulation of T cell anergy / CD4-positive, alpha-beta T cell proliferation / positive regulation of cell-cell adhesion mediated by integrin / Fc-gamma receptor signaling pathway ...regulation of lymphocyte apoptotic process / gamma-delta T cell receptor complex / Fc-gamma receptor III complex / positive regulation of melanin biosynthetic process / T cell anergy / melanin biosynthetic process / positive regulation of T cell anergy / CD4-positive, alpha-beta T cell proliferation / positive regulation of cell-cell adhesion mediated by integrin / Fc-gamma receptor signaling pathway / gamma-delta T cell activation / negative thymic T cell selection / melanosome membrane / multivesicular body, internal vesicle / cis-Golgi network membrane / multivesicular body membrane / positive regulation of CD4-positive, alpha-beta T cell proliferation / melanosome organization / positive thymic T cell selection / signal complex assembly / positive regulation of protein localization to cell surface / Nef and signal transduction / alpha-beta T cell receptor complex / positive regulation of memory T cell activation / T cell mediated cytotoxicity directed against tumor cell target / positive regulation of CD8-positive, alpha-beta T cell activation / CD8-positive, alpha-beta T cell activation / positive regulation of CD8-positive, alpha-beta T cell proliferation / T cell receptor complex / positive regulation of cell-matrix adhesion / smoothened signaling pathway / antigen processing and presentation of endogenous peptide antigen via MHC class I via ER pathway, TAP-dependent / TAP complex binding / antigen processing and presentation of exogenous peptide antigen via MHC class I / Golgi medial cisterna / Translocation of ZAP-70 to Immunological synapse / Phosphorylation of CD3 and TCR zeta chains / positive regulation of interleukin-4 production / CD8 receptor binding / dendrite development / establishment or maintenance of cell polarity / Regulation of MITF-M-dependent genes involved in pigmentation / protein complex oligomerization / protection from natural killer cell mediated cytotoxicity / alpha-beta T cell activation / beta-2-microglobulin binding / FCGR activation / Generation of second messenger molecules / endoplasmic reticulum exit site / immunological synapse / Co-inhibition by PD-1 / TAP binding / Role of phospholipids in phagocytosis / detection of bacterium / antigen processing and presentation of endogenous peptide antigen via MHC class Ib / antigen processing and presentation of endogenous peptide antigen via MHC class I via ER pathway, TAP-independent / positive regulation of interleukin-2 production / T cell receptor binding / T cell costimulation / positive regulation of T cell proliferation / positive regulation of calcium-mediated signaling / FCGR3A-mediated IL10 synthesis / cell surface receptor protein tyrosine kinase signaling pathway / early endosome lumen / protein tyrosine kinase binding / cerebellum development / Nef mediated downregulation of MHC class I complex cell surface expression / DAP12 interactions / bioluminescence / T cell activation / Endosomal/Vacuolar pathway / T cell mediated cytotoxicity / FCGR3A-mediated phagocytosis / Antigen Presentation: Folding, assembly and peptide loading of class I MHC / negative regulation of smoothened signaling pathway / lumenal side of endoplasmic reticulum membrane / generation of precursor metabolites and energy / regulation of iron ion transport / apoptotic signaling pathway / cellular response to iron(III) ion / negative regulation of iron ion transport / negative regulation of forebrain neuron differentiation / antigen processing and presentation of exogenous protein antigen via MHC class Ib, TAP-dependent / calcium-mediated signaling / clathrin-coated endocytic vesicle membrane / ER to Golgi transport vesicle membrane / peptide antigen assembly with MHC class I protein complex / regulation of erythrocyte differentiation / response to molecule of bacterial origin / HFE-transferrin receptor complex / transferrin transport / MHC class I peptide loading complex / cellular response to iron ion / negative regulation of receptor-mediated endocytosis / positive regulation of T cell cytokine production / antigen processing and presentation of endogenous peptide antigen via MHC class I / MHC class I protein complex / peptide antigen assembly with MHC class II protein complex / Regulation of actin dynamics for phagocytic cup formation / SH3 domain binding 類似検索 - 分子機能 | |||||||||||||||||||||||||||
| 生物種 | Homo sapiens (ヒト)![]() | |||||||||||||||||||||||||||
| 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: 3.08 Å | |||||||||||||||||||||||||||
データ登録者 | Susac, L. / Thomas, C. / Tampe, R. | |||||||||||||||||||||||||||
| 資金援助 | ドイツ, 4件
| |||||||||||||||||||||||||||
引用 | ジャーナル: Cell / 年: 2022タイトル: Structure of a fully assembled tumor-specific T cell receptor ligated by pMHC. 著者: Lukas Sušac / Mai T Vuong / Christoph Thomas / Sören von Bülow / Caitlin O'Brien-Ball / Ana Mafalda Santos / Ricardo A Fernandes / Gerhard Hummer / Robert Tampé / Simon J Davis / ![]() 要旨: The T cell receptor (TCR) expressed by T lymphocytes initiates protective immune responses to pathogens and tumors. To explore the structural basis of how TCR signaling is initiated when the ...The T cell receptor (TCR) expressed by T lymphocytes initiates protective immune responses to pathogens and tumors. To explore the structural basis of how TCR signaling is initiated when the receptor binds to peptide-loaded major histocompatibility complex (pMHC) molecules, we used cryogenic electron microscopy to determine the structure of a tumor-reactive TCRαβ/CD3δγεζ complex bound to a melanoma-specific human class I pMHC at 3.08 Å resolution. The antigen-bound complex comprises 11 subunits stabilized by multivalent interactions across three structural layers, with clustered membrane-proximal cystines stabilizing the CD3-εδ and CD3-εγ heterodimers. Extra density sandwiched between transmembrane helices reveals the involvement of sterol lipids in TCR assembly. The geometry of the pMHC/TCR complex suggests that efficient TCR scanning of pMHC requires accurate pre-positioning of T cell and antigen-presenting cell membranes. Comparisons of the ligand-bound and unliganded receptors, along with molecular dynamics simulations, indicate that TCRs can be triggered in the absence of spontaneous structural rearrangements. | |||||||||||||||||||||||||||
| 履歴 |
|
-
構造の表示
| 構造ビューア | 分子: Molmil Jmol/JSmol |
|---|
-
ダウンロードとリンク
-
ダウンロード
| PDBx/mmCIF形式 | 7phr.cif.gz | 274.6 KB | 表示 | PDBx/mmCIF形式 |
|---|---|---|---|---|
| PDB形式 | pdb7phr.ent.gz | 214.4 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 7phr.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
| その他 | その他のダウンロード |
-検証レポート
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/ph/7phr ftp://data.pdbj.org/pub/pdb/validation_reports/ph/7phr | HTTPS FTP |
|---|
-関連構造データ
| 関連構造データ | ![]() 13427MC 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 ( |
|---|---|
| 類似構造データ | 類似検索 - 機能・相同性 F&H 検索 |
-
リンク
-
集合体
| 登録構造単位 | ![]()
|
|---|---|
| 1 |
|
-
要素
-T-cell receptor ... , 2種, 2分子 AB
| #1: タンパク質 | 分子量: 27979.268 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト)発現宿主: ![]() |
|---|---|
| #2: タンパク質 | 分子量: 32750.736 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト)発現宿主: ![]() |
-T-cell surface glycoprotein CD3 ... , 4種, 6分子 CDEeZz
| #3: タンパク質 | 分子量: 13713.741 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: CD3G, T3G発現宿主: ![]() 参照: UniProt: P09693 | ||
|---|---|---|---|
| #4: タンパク質 | 分子量: 39858.188 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) Homo sapiens (ヒト), (組換発現) ![]() 遺伝子: CD3D, T3D, GFP 発現宿主: ![]() 参照: UniProt: P04234, UniProt: P42212 | ||
| #5: タンパク質 | 分子量: 15316.222 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: CD3E, T3E発現宿主: ![]() 参照: UniProt: P07766 #9: タンパク質・ペプチド | 分子量: 4138.015 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: CD247, CD3Z, T3Z, TCRZ発現宿主: ![]() 参照: UniProt: P20963 |
-タンパク質 , 2種, 2分子 HL
| #6: タンパク質 | 分子量: 35054.613 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: HLA-A, HLAA / 発現宿主: ![]() |
|---|---|
| #7: タンパク質 | 分子量: 11936.408 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: B2M, CDABP0092, HDCMA22P / 発現宿主: ![]() |
-タンパク質・ペプチド / 糖 , 2種, 7分子 P

| #10: 糖 | ChemComp-NAG / #8: タンパク質・ペプチド | | 分子量: 974.107 Da / 分子数: 1 / Mutation: A9V / 由来タイプ: 合成 / 由来: (合成) Homo sapiens (ヒト) / 参照: UniProt: P40967 |
|---|
-詳細
| 研究の焦点であるリガンドがあるか | N |
|---|---|
| Has protein modification | Y |
-実験情報
-実験
| 実験 | 手法: 電子顕微鏡法 |
|---|---|
| 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 |
-
試料調製
| 構成要素 | 名称: Fully assembled T-cell receptor engaging a tumor-associated peptide-MHC I タイプ: COMPLEX / Entity ID: #1-#9 / 由来: MULTIPLE SOURCES | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 由来(天然) |
| ||||||||||||
| 由来(組換発現) |
| ||||||||||||
| 緩衝液 | pH: 7.5 | ||||||||||||
| 試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | ||||||||||||
| 急速凍結 | 凍結剤: ETHANE |
-
電子顕微鏡撮影
| 実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
|---|---|
| 顕微鏡 | モデル: FEI TITAN KRIOS |
| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
| 電子レンズ | モード: BRIGHT FIELD |
| 撮影 | 電子線照射量: 61 e/Å2 フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
-
解析
| ソフトウェア | 名称: PHENIX / バージョン: 1.19.2_4158: / 分類: 精密化 | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EMソフトウェア | 名称: PHENIX / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 3.08 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 154408 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 拘束条件 |
|
ムービー
コントローラー
万見について




Homo sapiens (ヒト)

ドイツ, 4件
引用

PDBj



















gel filtration


