+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-31619 | |||||||||
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タイトル | Cryo-EM structure of a membrane protein(LL) | |||||||||
マップデータ | ||||||||||
試料 |
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キーワード | membrane / immune / IMMUNE SYSTEM | |||||||||
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 / T cell anergy / positive regulation of T cell anergy / positive regulation of cell-cell adhesion mediated by integrin / T cell activation involved in immune response / gamma-delta T cell activation / CD4-positive, alpha-beta T cell proliferation / negative thymic T cell selection ...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 / T cell activation involved in immune response / 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 / Nef and signal transduction / signal complex assembly / positive regulation of cell-matrix adhesion / T cell receptor complex / smoothened signaling pathway / establishment or maintenance of cell polarity / positive regulation of interleukin-4 production / Translocation of ZAP-70 to Immunological synapse / Phosphorylation of CD3 and TCR zeta chains / dendrite development / protein complex oligomerization / alpha-beta T cell activation / FCGR activation / Generation of second messenger molecules / immunological synapse / PD-1 signaling / Role of phospholipids in phagocytosis / T cell receptor binding / cell surface receptor protein tyrosine kinase signaling pathway / positive regulation of T cell proliferation / negative regulation of smoothened signaling pathway / T cell costimulation / positive regulation of interleukin-2 production / positive regulation of calcium-mediated signaling / protein tyrosine kinase binding / FCGR3A-mediated IL10 synthesis / cerebellum development / T cell activation / apoptotic signaling pathway / FCGR3A-mediated phagocytosis / response to bacterium / 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 / peptide antigen binding / 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 / Cargo recognition for clathrin-mediated endocytosis / Downstream TCR signaling / signaling receptor complex adaptor activity / Clathrin-mediated endocytosis / 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 / cell surface / endoplasmic reticulum / protein homodimerization activity / identical protein binding / membrane / plasma membrane / cytosol / cytoplasm 類似検索 - 分子機能 | |||||||||
生物種 | Homo sapiens (ヒト) | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.0 Å | |||||||||
データ登録者 | Chen Y / Zhu Y | |||||||||
資金援助 | 中国, 1件
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引用 | ジャーナル: Mol Cell / 年: 2022 タイトル: Cholesterol inhibits TCR signaling by directly restricting TCR-CD3 core tunnel motility. 著者: Yan Chen / Yuwei Zhu / Xiang Li / Wenbo Gao / Ziqi Zhen / De Dong / Buliao Huang / Zhuo Ma / Anqi Zhang / Xiaocui Song / Yan Ma / Changyou Guo / Fan Zhang / Zhiwei Huang / 要旨: Cholesterol molecules specifically bind to the resting αβTCR to inhibit cytoplasmic CD3ζ ITAM phosphorylation through sequestering the TCR-CD3 complex in an inactive conformation. The mechanisms ...Cholesterol molecules specifically bind to the resting αβTCR to inhibit cytoplasmic CD3ζ ITAM phosphorylation through sequestering the TCR-CD3 complex in an inactive conformation. The mechanisms of cholesterol-mediated inhibition of TCR-CD3 and its activation remain unclear. Here, we present cryoelectron microscopy structures of cholesterol- and cholesterol sulfate (CS)-inhibited TCR-CD3 complexes and an auto-active TCR-CD3 variant. The structures reveal that cholesterol molecules act like a latch to lock CD3ζ into an inactive conformation in the membrane. Mutations impairing binding of cholesterol molecules to the tunnel result in the movement of the proximal C terminus of the CD3ζ transmembrane helix, thereby activating the TCR-CD3 complex in human cells. Together, our data reveal the structural basis of TCR inhibition by cholesterol, illustrate how the cholesterol-binding tunnel is allosterically coupled to TCR triggering, and lay a foundation for the development of immunotherapies through directly targeting the TCR-CD3 complex. | |||||||||
履歴 |
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-構造の表示
添付画像 |
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-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_31619.map.gz | 59.7 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-31619-v30.xml emd-31619.xml | 16.2 KB 16.2 KB | 表示 表示 | EMDBヘッダ |
画像 | emd_31619.png | 82.2 KB | ||
Filedesc metadata | emd-31619.cif.gz | 6.1 KB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-31619 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-31619 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_31619_validation.pdf.gz | 510.1 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_31619_full_validation.pdf.gz | 509.7 KB | 表示 | |
XML形式データ | emd_31619_validation.xml.gz | 6.1 KB | 表示 | |
CIF形式データ | emd_31619_validation.cif.gz | 7 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-31619 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-31619 | HTTPS FTP |
-関連構造データ
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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「今月の分子」の関連する項目 |
-マップ
ファイル | ダウンロード / ファイル: emd_31619.map.gz / 形式: CCP4 / 大きさ: 64 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 1.1 Å | ||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
-試料の構成要素
-全体 : immune system
全体 | 名称: immune system |
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要素 |
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-超分子 #1: immune system
超分子 | 名称: immune system / タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1-#6 |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
-分子 #1: T-cell surface glycoprotein CD3 zeta chain
分子 | 名称: T-cell surface glycoprotein CD3 zeta chain / タイプ: protein_or_peptide / ID: 1 / コピー数: 2 / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 18.81052 KDa |
組換発現 | 生物種: Homo sapiens (ヒト) |
配列 | 文字列: MKWKALFTAA ILQAQLPITE AQSFGLLDPK LCYLLDGILF IYGVILTALF LRVKFSRSAD APAYQQGQNQ LYNELNLGRR EEYDVLDKR RGRDPEMGGK PQRRKNPQEG LYNELQKDKM AEAYSEIGMK GERRRGKGHD GLYQGLSTAT KDTYDALHMQ A LPPRS UniProtKB: T-cell surface glycoprotein CD3 zeta chain |
-分子 #2: T-cell surface glycoprotein CD3 delta chain
分子 | 名称: T-cell surface glycoprotein CD3 delta chain / タイプ: protein_or_peptide / ID: 2 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 18.949537 KDa |
組換発現 | 生物種: Homo sapiens (ヒト) |
配列 | 文字列: MEHSTFLSGL VLATLLSQVS PFKIPIEELE DRVFVNCNTS ITWVEGTVGT LLSDITRLDL GKRILDPRGI YRCNGTDIYK DKESTVQVH YRMCQSCVEL DPATVAGIIV TDVIATLLLA LGVFCFAGHE TGRLSGAADT QALLRNDQVY QPLRDRDDAQ Y SHLGGNWA RNK UniProtKB: T-cell surface glycoprotein CD3 delta chain |
-分子 #3: T-cell surface glycoprotein CD3 epsilon chain
分子 | 名称: T-cell surface glycoprotein CD3 epsilon chain / タイプ: protein_or_peptide / ID: 3 / コピー数: 2 / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 23.174227 KDa |
組換発現 | 生物種: Homo sapiens (ヒト) |
配列 | 文字列: MQSGTHWRVL GLCLLSVGVW GQDGNEEMGG ITQTPYKVSI SGTTVILTCP QYPGSEILWQ HNDKNIGGDE DDKNIGSDED HLSLKEFSE LEQSGYYVCY PRGSKPEDAN FYLYLRARVC ENCMEMDVMS VATIVIVDIC ITGGLLLLVY YWSKNRKAKA K PVTRGAGA ...文字列: MQSGTHWRVL GLCLLSVGVW GQDGNEEMGG ITQTPYKVSI SGTTVILTCP QYPGSEILWQ HNDKNIGGDE DDKNIGSDED HLSLKEFSE LEQSGYYVCY PRGSKPEDAN FYLYLRARVC ENCMEMDVMS VATIVIVDIC ITGGLLLLVY YWSKNRKAKA K PVTRGAGA GGRQRGQNKE RPPPVPNPDY EPIRKGQRDL YSGLNQRRI UniProtKB: T-cell surface glycoprotein CD3 epsilon chain |
-分子 #4: T-cell surface glycoprotein CD3 gamma chain
分子 | 名称: T-cell surface glycoprotein CD3 gamma chain / タイプ: protein_or_peptide / ID: 4 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 20.493457 KDa |
組換発現 | 生物種: Homo sapiens (ヒト) |
配列 | 文字列: MEQGKGLAVL ILAIILLQGT LAQSIKGNHL VKVYDYQEDG SVLLTCDAEA KNITWFKDGK MIGFLTEDKK KWNLGSNAKD PRGMYQCKG SQNKSKPLQV YYRMCQNCIE LNAATISGFL FAEIVSIFVL AVGVYFIAGQ DGVRQSRASD KQTLLPNDQL Y QPLKDRED DQYSHLQGNQ LRRN UniProtKB: T-cell surface glycoprotein CD3 gamma chain |
-分子 #5: T cell receptor alpha variable 12-3,Possible J 11 gene segment,T ...
分子 | 名称: T cell receptor alpha variable 12-3,Possible J 11 gene segment,T cell receptor alpha chain constant タイプ: protein_or_peptide / ID: 5 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 30.763717 KDa |
組換発現 | 生物種: Homo sapiens (ヒト) |
配列 | 文字列: MKSLRVLLVI LWLQLSWVWS QQKEVEQDPG PLSVPEGAIV SLNCTYSNSA FQYFMWYRQY SRKGPELLMY TYSSGNKEDG RFTAQVDKS SKYISLFIRD SQPSDSATYL CAMSKGYSTL TFGKGTMLLV SPDIQNPDPA VYQLRDSKSS DKSVCLFTDF D SQTNVSQS ...文字列: MKSLRVLLVI LWLQLSWVWS QQKEVEQDPG PLSVPEGAIV SLNCTYSNSA FQYFMWYRQY SRKGPELLMY TYSSGNKEDG RFTAQVDKS SKYISLFIRD SQPSDSATYL CAMSKGYSTL TFGKGTMLLV SPDIQNPDPA VYQLRDSKSS DKSVCLFTDF D SQTNVSQS KDSDVYITDK TVLDMRSMDF KSNSAVAWSN KSDFACANAF NNSIIPEDTF FPSPESSCDV KLVEKSFETD TN LNFQNLS VIGFRILLLK VAGFNLLMTL RLWSS UniProtKB: T cell receptor alpha variable 12-3, Possible J 11 gene segment, T cell receptor alpha chain constant |
-分子 #6: T cell receptor beta variable 6-5,M1-specific T cell receptor bet...
分子 | 名称: T cell receptor beta variable 6-5,M1-specific T cell receptor beta chain,T cell receptor beta constant 2 タイプ: protein_or_peptide / ID: 6 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 34.529895 KDa |
組換発現 | 生物種: Homo sapiens (ヒト) |
配列 | 文字列: MSISLLCCAA LSLLWAGPVN AGVTQTPKFQ VLKTGQSMTL QCAQDMNHEY MSWYRQDPGM GLRLIHYSVG AGITDQGEVP NGYNVSRST TEDFPLRLLS AAPSQTSVYF CASRRRQGAS GEQYFGPGTR LTVTEDLKNV FPPEVAVFEP SEAEISHTQK A TLVCLATG ...文字列: MSISLLCCAA LSLLWAGPVN AGVTQTPKFQ VLKTGQSMTL QCAQDMNHEY MSWYRQDPGM GLRLIHYSVG AGITDQGEVP NGYNVSRST TEDFPLRLLS AAPSQTSVYF CASRRRQGAS GEQYFGPGTR LTVTEDLKNV FPPEVAVFEP SEAEISHTQK A TLVCLATG FYPDHVELSW WVNGKEVHSG VSTDPQPLKE QPALNDSRYC LSSRLRVSAT FWQNPRNHFR CQVQFYGLSE ND EWTQDRA KPVTQIVSAE AWGRADCGFT SESYQQGVLS ATIAYEIALG KATLYAVLVS ALVLMAMVKR KDSRG UniProtKB: T cell receptor beta variable 6-5, M1-specific T cell receptor beta chain, T cell receptor beta constant 2 |
-分子 #7: CHOLESTEROL
分子 | 名称: CHOLESTEROL / タイプ: ligand / ID: 7 / コピー数: 1 / 式: CLR |
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分子量 | 理論値: 386.654 Da |
Chemical component information | ChemComp-CLR: |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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解析 | 単粒子再構成法 |
試料の集合状態 | particle |
-試料調製
緩衝液 | pH: 8 |
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凍結 | 凍結剤: NITROGEN |
-電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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撮影 | フィルム・検出器のモデル: GATAN K2 QUANTUM (4k x 4k) 平均電子線量: 60.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD |
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
-画像解析
初期モデル | モデルのタイプ: NONE |
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最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 3.0 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 使用した粒子像数: 1126031 |
初期 角度割当 | タイプ: PROJECTION MATCHING |
最終 角度割当 | タイプ: PROJECTION MATCHING |