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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: 9p4z | ||||||
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| タイトル | Human EAAT3 with sodium bound at inward facing state | ||||||
要素 | Excitatory amino acid transporter 3 | ||||||
キーワード | TRANSPORT PROTEIN / hEAAAT3 / Sodium bound | ||||||
| 機能・相同性 | 機能・相同性情報D-aspartate transmembrane transport / regulation of protein targeting to membrane / D-aspartate transmembrane transporter activity / Defective SLC1A1 is implicated in schizophrenia 18 (SCZD18) and dicarboxylic aminoaciduria (DCBXA) / distal dendrite / cysteine transport / cysteine transmembrane transporter activity / neurotransmitter receptor transport to plasma membrane / high-affinity L-glutamate transmembrane transporter activity / glutamate:sodium symporter activity ...D-aspartate transmembrane transport / regulation of protein targeting to membrane / D-aspartate transmembrane transporter activity / Defective SLC1A1 is implicated in schizophrenia 18 (SCZD18) and dicarboxylic aminoaciduria (DCBXA) / distal dendrite / cysteine transport / cysteine transmembrane transporter activity / neurotransmitter receptor transport to plasma membrane / high-affinity L-glutamate transmembrane transporter activity / glutamate:sodium symporter activity / L-glutamate import / response to decreased oxygen levels / cellular response to mercury ion / : / L-glutamate transmembrane transporter activity / retina layer formation / L-glutamate transmembrane transport / glutathione biosynthetic process / D-aspartate import across plasma membrane / L-aspartate transmembrane transport / cellular response to ammonium ion / righting reflex / zinc ion transmembrane transport / L-aspartate transmembrane transporter activity / cellular response to bisphenol A / intracellular glutamate homeostasis / grooming behavior / L-aspartate import across plasma membrane / Glutamate Neurotransmitter Release Cycle / monoatomic anion channel activity / L-glutamate import across plasma membrane / proximal dendrite / transepithelial transport / apical dendrite / intracellular zinc ion homeostasis / blood vessel morphogenesis / cellular response to cocaine / chloride transmembrane transporter activity / motor neuron apoptotic process / G protein-coupled dopamine receptor signaling pathway / response to anesthetic / response to morphine / glutamate receptor signaling pathway / superoxide metabolic process / neurotransmitter transport / heart contraction / perisynaptic space / maintenance of blood-brain barrier / dopamine metabolic process / adult behavior / motor behavior / asymmetric synapse / conditioned place preference / glial cell projection / synaptic cleft / behavioral fear response / postsynaptic modulation of chemical synaptic transmission / response to axon injury / positive regulation of heart rate / transport across blood-brain barrier / monoatomic ion transport / neurogenesis / axon terminus / chloride transmembrane transport / response to amphetamine / dendritic shaft / cell periphery / locomotory behavior / synapse organization / brain development / Schaffer collateral - CA1 synapse / memory / long-term synaptic potentiation / recycling endosome membrane / cytokine-mediated signaling pathway / late endosome membrane / presynapse / cellular response to oxidative stress / early endosome membrane / perikaryon / chemical synaptic transmission / gene expression / dendritic spine / negative regulation of neuron apoptotic process / apical plasma membrane / membrane raft / response to xenobiotic stimulus / axon / neuronal cell body / dendrite / cell surface / extracellular exosome / metal ion binding / identical protein binding / membrane / plasma membrane 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: 2.83 Å | ||||||
データ登録者 | Qiu, B. / Boudker, O. | ||||||
| 資金援助 | 米国, 1件
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引用 | ジャーナル: bioRxiv / 年: 2025タイトル: Mechanism and Structure-Guided Optimization of SLC1A1/EAAT3-Selective Inhibitors in Kidney Cancer. 著者: Pooneh Koochaki / Biao Qiu / Jesse A Coker / Alexander Earsley / Nancy S Wang / Todd Romigh / Christopher M Goins / Shaun R Stauffer / Olga Boudker / Abhishek A Chakraborty / ![]() 要旨: Renal Cell Carcinomas (RCCs) depend metabolically on the trimeric sodium-coupled aspartate and glutamate transporter, SLC1A1/EAAT3; however, pharmacologically targeting SLC1A1 is challenging. We ...Renal Cell Carcinomas (RCCs) depend metabolically on the trimeric sodium-coupled aspartate and glutamate transporter, SLC1A1/EAAT3; however, pharmacologically targeting SLC1A1 is challenging. We determined a cryo-EM structure of human SLC1A1 bound to compound , a recently described SLC1A1-selective bicyclic imidazo[1,2-α]pyridine-3-amine (BIA) inhibitor. binds a membrane-embedded, allosteric pocket accessible only in the state, when SLC1A1 is unbound to substrate and sodium. Wedged between the trimerization domain and the substrate-binding transport domain, together with a cholesterol moiety from the lipid bilayer, likely prevents sodium and substrate binding, and blocks SLC1A1's elevator-like movements that are essential for transport. Mutations in this pocket abolish binding and counteract 's cytotoxicity in RCC cells, confirming on-target activity and explaining SLC1A1 selectivity. A structure-guided medicinal chemistry effort yielded two new, SLC1A1-selective BIA derivatives, PBJ1 and PBJ2, with enhanced cytotoxicity resulting from the inhibition of SLC1A1-dependent aspartate, glutamate, and cysteine metabolic pathways. | ||||||
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構造の表示
| 構造ビューア | 分子: Molmil Jmol/JSmol |
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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 | 9p4z.cif.gz | 94.4 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9p4z.ent.gz | 68.1 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9p4z.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 | 9p4z_validation.pdf.gz | 1.5 MB | 表示 | wwPDB検証レポート |
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| 文書・詳細版 | 9p4z_full_validation.pdf.gz | 1.5 MB | 表示 | |
| XML形式データ | 9p4z_validation.xml.gz | 31.5 KB | 表示 | |
| CIF形式データ | 9p4z_validation.cif.gz | 43.7 KB | 表示 | |
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/p4/9p4z ftp://data.pdbj.org/pub/pdb/validation_reports/p4/9p4z | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 71290MC ![]() 9p4xC ![]() 9p4yC 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 F&H 検索 |
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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: 57275.168 Da / 分子数: 1 / 変異: N178T, N195T / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: SLC1A1, EAAC1, EAAT3, HEAAC1 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P43005 | ||||||||
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| #2: 化合物 | | #3: 化合物 | ChemComp-9Z9 / ( | #4: 化合物 | ChemComp-CLR / | 研究の焦点であるリガンドがあるか | Y | Has protein modification | N | |
-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: human excitatory amino acid transporter 3 / タイプ: COMPLEX / Entity ID: #1 / 由来: RECOMBINANT |
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| 分子量 | 値: 0.56 MDa / 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: 7.4 |
| 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: 298 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: TFS 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): 105000 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): 1000 nm / Cs: 2.7 mm / C2レンズ絞り径: 100 µm |
| 試料ホルダ | 凍結剤: NITROGEN |
| 撮影 | 電子線照射量: 58 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
| EMソフトウェア |
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| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||||||||||||||
| 粒子像の選択 | 選択した粒子像数: 6652777 | |||||||||||||||||||||||||||
| 対称性 | 点対称性: C1 (非対称) | |||||||||||||||||||||||||||
| 3次元再構成 | 解像度: 2.83 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 165684 / クラス平均像の数: 1 / 対称性のタイプ: POINT | |||||||||||||||||||||||||||
| 原子モデル構築 | B value: 47.25 / プロトコル: OTHER | |||||||||||||||||||||||||||
| 原子モデル構築 | PDB-ID: 6X2L Accession code: 6X2L / Source name: PDB / タイプ: experimental model |
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万見について




Homo sapiens (ヒト)
米国, 1件
引用




PDBj











FIELD EMISSION GUN
