+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7t62 | |||||||||
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タイトル | GPC2 HEP CT3 complex | |||||||||
要素 |
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キーワード | IMMUNE SYSTEM / Glypican-3 complex | |||||||||
機能・相同性 | 機能・相同性情報 regulation of protein localization to membrane / Defective B3GALT6 causes EDSP2 and SEMDJL1 / Defective B4GALT7 causes EDS, progeroid type / Defective B3GAT3 causes JDSSDHD / Defective EXT2 causes exostoses 2 / Defective EXT1 causes exostoses 1, TRPS2 and CHDS / A tetrasaccharide linker sequence is required for GAG synthesis / HS-GAG biosynthesis / HS-GAG degradation / smoothened signaling pathway ...regulation of protein localization to membrane / Defective B3GALT6 causes EDSP2 and SEMDJL1 / Defective B4GALT7 causes EDS, progeroid type / Defective B3GAT3 causes JDSSDHD / Defective EXT2 causes exostoses 2 / Defective EXT1 causes exostoses 1, TRPS2 and CHDS / A tetrasaccharide linker sequence is required for GAG synthesis / HS-GAG biosynthesis / HS-GAG degradation / smoothened signaling pathway / RSV-host interactions / Respiratory syncytial virus (RSV) attachment and entry / regulation of signal transduction / Retinoid metabolism and transport / side of membrane / lysosomal lumen / neuron differentiation / positive regulation of neuron projection development / Golgi lumen / cell migration / collagen-containing extracellular matrix / Attachment and Entry / synapse / cell surface / endoplasmic reticulum / extracellular region / plasma membrane 類似検索 - 分子機能 | |||||||||
生物種 | Homo sapiens (ヒト) Mus musculus (ハツカネズミ) | |||||||||
手法 | 電子顕微鏡法 / 単粒子再構成法 / ネガティブ染色法 / 解像度: 21 Å | |||||||||
データ登録者 | Zhu, J. / Cachau, R. / De Val Alda, N. / Li, N. / Ho, M. | |||||||||
資金援助 | 米国, 2件
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引用 | ジャーナル: Cell Rep Med / 年: 2021 タイトル: CAR T cells targeting tumor-associated exons of glypican 2 regress neuroblastoma in mice. 著者: Nan Li / Madeline B Torres / Madeline R Spetz / Ruixue Wang / Luyi Peng / Meijie Tian / Christopher M Dower / Rosa Nguyen / Ming Sun / Chin-Hsien Tai / Natalia de Val / Raul Cachau / Xiaolin ...著者: Nan Li / Madeline B Torres / Madeline R Spetz / Ruixue Wang / Luyi Peng / Meijie Tian / Christopher M Dower / Rosa Nguyen / Ming Sun / Chin-Hsien Tai / Natalia de Val / Raul Cachau / Xiaolin Wu / Stephen M Hewitt / Rosandra N Kaplan / Javed Khan / Brad St Croix / Carol J Thiele / Mitchell Ho / 要旨: Targeting solid tumors must overcome several major obstacles, in particular, the identification of elusive tumor-specific antigens. Here, we devise a strategy to help identify tumor-specific epitopes. ...Targeting solid tumors must overcome several major obstacles, in particular, the identification of elusive tumor-specific antigens. Here, we devise a strategy to help identify tumor-specific epitopes. Glypican 2 (GPC2) is overexpressed in neuroblastoma. Using RNA sequencing (RNA-seq) analysis, we show that exon 3 and exons 7-10 of GPC2 are expressed in cancer but are minimally expressed in normal tissues. Accordingly, we discover a monoclonal antibody (CT3) that binds exons 3 and 10 and visualize the complex structure of CT3 and GPC2 by electron microscopy. The potential of this approach is exemplified by designing CT3-derived chimeric antigen receptor (CAR) T cells that regress neuroblastoma in mice. Genomic sequencing of T cells recovered from mice reveals the CAR integration sites that may contribute to CAR T cell proliferation and persistence. These studies demonstrate how RNA-seq data can be exploited to help identify tumor-associated exons that can be targeted by CAR T cell therapies. | |||||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 7t62.cif.gz | 315.9 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7t62.ent.gz | 251.5 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7t62.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/t6/7t62 ftp://data.pdbj.org/pub/pdb/validation_reports/t6/7t62 | HTTPS FTP |
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-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
#1: タンパク質 | 分子量: 61002.066 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: GPC2 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q8N158 |
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#2: 抗体 | 分子量: 47359.551 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Mus musculus (ハツカネズミ) / 発現宿主: Mus musculus (ハツカネズミ) |
Has protein modification | Y |
-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: GPC2 HET CT3 complex / タイプ: COMPLEX / Entity ID: all / 由来: MULTIPLE SOURCES |
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緩衝液 | pH: 7.5 |
試料 | 濃度: 0.01 mg/ml / 包埋: NO / シャドウイング: NO / 染色: YES / 凍結: NO |
染色 | タイプ: NEGATIVE 詳細: A 3 uL aliquot containing ~0.01 mg/mL of the samples was applied for 20 s onto a carbon-coated 200 Cu mesh grid (Electron Microscopy Sciences, Protochips, Inc.) that had been glow discharged ...詳細: A 3 uL aliquot containing ~0.01 mg/mL of the samples was applied for 20 s onto a carbon-coated 200 Cu mesh grid (Electron Microscopy Sciences, Protochips, Inc.) that had been glow discharged at 30 mA for 30 s (Pelco easiGlow, Ted Pella, Inc.), then negatively stained with 0.7% (w/v) uranyl formate for 40 sec. 染色剤: uranyl formate |
試料支持 | グリッドの材料: COPPER / グリッドのサイズ: 200 divisions/in. / グリッドのタイプ: Quantifoil |
-電子顕微鏡撮影
顕微鏡 | モデル: FEI TECNAI 20 |
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電子銃 | 電子線源: LAB6 / 加速電圧: 200 kV / 照射モード: SPOT SCAN |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 100000 X / 最大 デフォーカス(公称値): 5000 nm / 最小 デフォーカス(公称値): 2000 nm / アライメント法: COMA FREE |
試料ホルダ | 凍結剤: NITROGEN |
撮影 | 電子線照射量: 40 e/Å2 / フィルム・検出器のモデル: FEI EAGLE (2k x 2k) / 実像数: 200 |
画像スキャン | 横: 2048 / 縦: 2048 |
-解析
EMソフトウェア |
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CTF補正 | タイプ: NONE | ||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 21000 | ||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||
3次元再構成 | 解像度: 21 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 21000 / アルゴリズム: BACK PROJECTION / クラス平均像の数: 1 / 対称性のタイプ: POINT |