+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 8tw6 | |||||||||||||||||||||
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タイトル | TCR in nanodisc ND-II | |||||||||||||||||||||
要素 |
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キーワード | IMMUNE SYSTEM / T-cell receptor / TCR / 1G4 / nanodisc / CD3 | |||||||||||||||||||||
機能・相同性 | 機能・相同性情報 detection of tumor cell / regulation of lymphocyte apoptotic process / gamma-delta T cell receptor complex / Fc-gamma receptor III complex / T cell anergy / positive regulation of T cell anergy / positive regulation of cell-cell adhesion mediated by integrin / gamma-delta T cell activation / CD4-positive, alpha-beta T cell proliferation / negative thymic T cell selection ...detection of tumor cell / regulation of lymphocyte apoptotic process / gamma-delta T cell receptor complex / Fc-gamma receptor III complex / T cell anergy / positive regulation of T cell anergy / positive regulation of cell-cell adhesion mediated by integrin / gamma-delta T cell activation / CD4-positive, alpha-beta T cell proliferation / negative thymic T cell selection / Fc-gamma receptor signaling pathway / positive regulation of CD4-positive, alpha-beta T cell proliferation / alpha-beta T cell receptor complex / positive regulation of protein localization to cell surface / positive thymic T cell selection / signal complex assembly / Nef and signal transduction / positive regulation of cell-matrix adhesion / T cell mediated cytotoxicity directed against tumor cell target / T cell receptor complex / smoothened signaling pathway / establishment or maintenance of cell polarity / positive regulation of interleukin-4 production / protein complex oligomerization / Translocation of ZAP-70 to Immunological synapse / Phosphorylation of CD3 and TCR zeta chains / dendrite development / alpha-beta T cell activation / Generation of second messenger molecules / immunological synapse / FCGR activation / PD-1 signaling / Role of phospholipids in phagocytosis / T cell receptor binding / negative regulation of smoothened signaling pathway / positive regulation of T cell proliferation / cell surface receptor protein tyrosine kinase signaling pathway / T cell costimulation / positive regulation of interleukin-2 production / positive regulation of calcium-mediated signaling / FCGR3A-mediated IL10 synthesis / cerebellum development / bioluminescence / protein tyrosine kinase binding / T cell activation / apoptotic signaling pathway / generation of precursor metabolites and energy / FCGR3A-mediated phagocytosis / calcium-mediated signaling / clathrin-coated endocytic vesicle membrane / Regulation of actin dynamics for phagocytic cup formation / SH3 domain binding / positive regulation of type II interferon production / positive regulation of peptidyl-tyrosine phosphorylation / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / transmembrane signaling receptor activity / cell-cell junction / protein transport / Downstream TCR signaling / Cargo recognition for clathrin-mediated endocytosis / signaling receptor complex adaptor activity / Clathrin-mediated endocytosis / signaling receptor activity / T cell receptor signaling pathway / cell body / protein-containing complex assembly / regulation of apoptotic process / adaptive immune response / dendritic spine / cell surface receptor signaling pathway / protein heterodimerization activity / G protein-coupled receptor signaling pathway / external side of plasma membrane / negative regulation of gene expression / positive regulation of gene expression / protein kinase binding / Golgi apparatus / endoplasmic reticulum / protein homodimerization activity / identical protein binding / plasma membrane / cytosol / cytoplasm 類似検索 - 分子機能 | |||||||||||||||||||||
生物種 | Homo sapiens (ヒト) human respiratory syncytial virus (ウイルス) Escherichia coli str. K-12 substr. MG1655 (大腸菌) | |||||||||||||||||||||
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: 3.1 Å | |||||||||||||||||||||
データ登録者 | Notti, R.Q. / Walz, T. | |||||||||||||||||||||
資金援助 | 米国, 6件
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引用 | ジャーナル: bioRxiv / 年: 2024 タイトル: The resting and ligand-bound states of the membrane-embedded human T-cell receptor-CD3 complex. 著者: Ryan Q Notti / Fei Yi / Søren Heissel / Martin W Bush / Zaki Molvi / Pujita Das / Henrik Molina / Christopher A Klebanoff / Thomas Walz 要旨: The T-cell receptor (TCR) initiates T-lymphocyte activation, but mechanistic questions remain( ). Here, we present cryogenic electron microscopy structures for the unliganded and human leukocyte ...The T-cell receptor (TCR) initiates T-lymphocyte activation, but mechanistic questions remain( ). Here, we present cryogenic electron microscopy structures for the unliganded and human leukocyte antigen (HLA)-bound human TCR-CD3 complex in nanodiscs that provide a native-like lipid environment. Distinct from the "open and extended" conformation seen in detergent( ), the unliganded TCR-CD3 in nanodiscs adopts two related "closed and compacted" conformations that represent its physiologic resting state . By contrast, the HLA-bound complex adopts the open and extended conformation, and conformation-locking disulfide mutants show that ectodomain opening is necessary for maximal ligand-dependent T-cell activation. Together, these results reveal allosteric conformational change during TCR activation and highlight the importance of native-like lipid environments for membrane protein structure determination. | |||||||||||||||||||||
履歴 |
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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 8tw6.cif.gz | 190 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb8tw6.ent.gz | 129.3 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 8tw6.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
文書・要旨 | 8tw6_validation.pdf.gz | 1.1 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 8tw6_full_validation.pdf.gz | 1.1 MB | 表示 | |
XML形式データ | 8tw6_validation.xml.gz | 31.9 KB | 表示 | |
CIF形式データ | 8tw6_validation.cif.gz | 46.5 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/tw/8tw6 ftp://data.pdbj.org/pub/pdb/validation_reports/tw/8tw6 | HTTPS FTP |
-関連構造データ
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
-T-cell surface glycoprotein CD3 ... , 4種, 6分子 YXEFDG
#1: タンパク質 | 分子量: 46650.879 Da / 分子数: 2 / 由来タイプ: 組換発現 由来: (組換発現) Homo sapiens (ヒト), (組換発現) human respiratory syncytial virus (ウイルス) 遺伝子: CD247 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P20963, UniProt: A0A5P9VSM6 #4: タンパク質 | 分子量: 23174.227 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: Homo sapiens (ヒト) / 参照: UniProt: P07766 #5: タンパク質 | | 分子量: 18949.537 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: CD3D, T3D / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P04234 #6: タンパク質 | | 分子量: 21598.633 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: Homo sapiens (ヒト) / 参照: UniProt: P09693 |
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-タンパク質 , 2種, 2分子 AB
#2: タンパク質 | 分子量: 30388.189 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: Homo sapiens (ヒト) |
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#3: タンパク質 | 分子量: 62042.883 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) Escherichia coli str. K-12 substr. MG1655 (大腸菌) 遺伝子: TRBV6-5, TRB, mCherry / 発現宿主: Homo sapiens (ヒト) 参照: UniProt: A0A0K0K1A5, UniProt: P0DTU4, UniProt: A0A4D6FVK6 |
-糖 , 2種, 2分子
#7: 多糖 | beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose |
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#9: 糖 | ChemComp-NAG / |
-非ポリマー , 1種, 2分子
#8: 化合物 |
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-詳細
研究の焦点であるリガンドがあるか | 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 |
-試料調製
構成要素 | 名称: TCR hetero-octamer in lipid nanodisc / タイプ: COMPLEX / Entity ID: #1-#6 / 由来: MULTIPLE SOURCES | |||||||||||||||
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分子量 | 実験値: NO | |||||||||||||||
由来(天然) | 生物種: Homo sapiens (ヒト) | |||||||||||||||
由来(組換発現) | 生物種: Homo sapiens (ヒト) | |||||||||||||||
緩衝液 | pH: 7.5 | |||||||||||||||
緩衝液成分 |
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試料 | 濃度: 0.33 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: COPPER / 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: 277 K |
-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: 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 / 倍率(公称値): 64000 X / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 800 nm / Cs: 0 mm |
撮影 | 電子線照射量: 57 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
-解析
EMソフトウェア | 名称: PHENIX / バージョン: 1.21_5207: / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: NONE | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.1 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 797000 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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