+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 8g47 | |||||||||
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タイトル | KRAS G12C complex with GDP and AMG 510 imaged on a cryo-EM imaging scaffold | |||||||||
要素 |
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キーワード | SIGNALING PROTEIN / CryoEM imaging scaffold / Cancer / GTPase | |||||||||
機能・相同性 | 機能・相同性情報 forebrain astrocyte development / negative regulation of epithelial cell differentiation / regulation of synaptic transmission, GABAergic / type I pneumocyte differentiation / epithelial tube branching involved in lung morphogenesis / Rac protein signal transduction / skeletal muscle cell differentiation / positive regulation of Rac protein signal transduction / Signaling by RAS GAP mutants / Signaling by RAS GTPase mutants ...forebrain astrocyte development / negative regulation of epithelial cell differentiation / regulation of synaptic transmission, GABAergic / type I pneumocyte differentiation / epithelial tube branching involved in lung morphogenesis / Rac protein signal transduction / skeletal muscle cell differentiation / positive regulation of Rac protein signal transduction / Signaling by RAS GAP mutants / Signaling by RAS GTPase mutants / Activation of RAS in B cells / RAS signaling downstream of NF1 loss-of-function variants / RUNX3 regulates p14-ARF / SOS-mediated signalling / Activated NTRK3 signals through RAS / Activated NTRK2 signals through RAS / SHC1 events in ERBB4 signaling / Signalling to RAS / SHC-related events triggered by IGF1R / Activated NTRK2 signals through FRS2 and FRS3 / glial cell proliferation / Estrogen-stimulated signaling through PRKCZ / SHC-mediated cascade:FGFR3 / MET activates RAS signaling / Signaling by PDGFRA transmembrane, juxtamembrane and kinase domain mutants / Signaling by PDGFRA extracellular domain mutants / SHC-mediated cascade:FGFR2 / PTK6 Regulates RHO GTPases, RAS GTPase and MAP kinases / SHC-mediated cascade:FGFR4 / Signaling by FGFR4 in disease / SHC-mediated cascade:FGFR1 / Erythropoietin activates RAS / protein-membrane adaptor activity / FRS-mediated FGFR3 signaling / Signaling by CSF3 (G-CSF) / Signaling by FLT3 ITD and TKD mutants / positive regulation of glial cell proliferation / homeostasis of number of cells within a tissue / FRS-mediated FGFR2 signaling / Signaling by FGFR3 in disease / FRS-mediated FGFR4 signaling / p38MAPK events / Tie2 Signaling / FRS-mediated FGFR1 signaling / striated muscle cell differentiation / Signaling by FGFR2 in disease / GRB2 events in EGFR signaling / SHC1 events in EGFR signaling / EGFR Transactivation by Gastrin / Signaling by FLT3 fusion proteins / FLT3 Signaling / Ras activation upon Ca2+ influx through NMDA receptor / Signaling by FGFR1 in disease / GRB2 events in ERBB2 signaling / CD209 (DC-SIGN) signaling / NCAM signaling for neurite out-growth / SHC1 events in ERBB2 signaling / Downstream signal transduction / Constitutive Signaling by Overexpressed ERBB2 / Insulin receptor signalling cascade / small monomeric GTPase / Signaling by phosphorylated juxtamembrane, extracellular and kinase domain KIT mutants / G protein activity / VEGFR2 mediated cell proliferation / FCERI mediated MAPK activation / Signaling by ERBB2 TMD/JMD mutants / RAF activation / regulation of long-term neuronal synaptic plasticity / Signaling by high-kinase activity BRAF mutants / Constitutive Signaling by EGFRvIII / visual learning / MAP2K and MAPK activation / Signaling by ERBB2 ECD mutants / Signaling by ERBB2 KD Mutants / Signaling by SCF-KIT / cytoplasmic side of plasma membrane / Regulation of RAS by GAPs / RAS processing / Negative regulation of MAPK pathway / Signaling by CSF1 (M-CSF) in myeloid cells / Signaling by RAF1 mutants / Signaling by moderate kinase activity BRAF mutants / Paradoxical activation of RAF signaling by kinase inactive BRAF / Signaling downstream of RAS mutants / GDP binding / MAPK cascade / Signaling by BRAF and RAF1 fusions / DAP12 signaling / Constitutive Signaling by Ligand-Responsive EGFR Cancer Variants / Ca2+ pathway / gene expression / actin cytoskeleton organization / RAF/MAP kinase cascade / neuron apoptotic process / mitochondrial outer membrane / Ras protein signal transduction / negative regulation of neuron apoptotic process / positive regulation of protein phosphorylation / Golgi membrane / focal adhesion 類似検索 - 分子機能 | |||||||||
生物種 | synthetic construct (人工物) 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: 3.19 Å | |||||||||
データ登録者 | Castells-Graells, R. / Sawaya, M.R. / Yeates, T.O. | |||||||||
資金援助 | 米国, 2件
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引用 | ジャーナル: Proc Natl Acad Sci U S A / 年: 2023 タイトル: Cryo-EM structure determination of small therapeutic protein targets at 3 Å-resolution using a rigid imaging scaffold. 著者: Roger Castells-Graells / Kyle Meador / Mark A Arbing / Michael R Sawaya / Morgan Gee / Duilio Cascio / Emma Gleave / Judit É Debreczeni / Jason Breed / Karoline Leopold / Ankoor Patel / ...著者: Roger Castells-Graells / Kyle Meador / Mark A Arbing / Michael R Sawaya / Morgan Gee / Duilio Cascio / Emma Gleave / Judit É Debreczeni / Jason Breed / Karoline Leopold / Ankoor Patel / Dushyant Jahagirdar / Bronwyn Lyons / Sriram Subramaniam / Chris Phillips / Todd O Yeates / 要旨: Cryoelectron microscopy (Cryo-EM) has enabled structural determination of proteins larger than about 50 kDa, including many intractable by any other method, but it has largely failed for smaller ...Cryoelectron microscopy (Cryo-EM) has enabled structural determination of proteins larger than about 50 kDa, including many intractable by any other method, but it has largely failed for smaller proteins. Here, we obtain structures of small proteins by binding them to a rigid molecular scaffold based on a designed protein cage, revealing atomic details at resolutions reaching 2.9 Å. We apply this system to the key cancer signaling protein KRAS (19 kDa in size), obtaining four structures of oncogenic mutational variants by cryo-EM. Importantly, a structure for the key G12C mutant bound to an inhibitor drug (AMG510) reveals significant conformational differences compared to prior data in the crystalline state. The findings highlight the promise of cryo-EM scaffolds for advancing the design of drug molecules against small therapeutic protein targets in cancer and other human diseases. | |||||||||
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 | 8g47.cif.gz | 101.2 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb8g47.ent.gz | 58.2 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 8g47.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 | 8g47_validation.pdf.gz | 1.3 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 8g47_full_validation.pdf.gz | 1.3 MB | 表示 | |
XML形式データ | 8g47_validation.xml.gz | 27.4 KB | 表示 | |
CIF形式データ | 8g47_validation.cif.gz | 37.7 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/g4/8g47 ftp://data.pdbj.org/pub/pdb/validation_reports/g4/8g47 | HTTPS FTP |
-関連構造データ
関連構造データ | 29715MC 8g3kC 8g42C 8g4eC 8g4fC 8g4hC 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 (文献) |
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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 |
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1 |
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-要素
#1: タンパク質 | 分子量: 35452.441 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) synthetic construct (人工物) / 発現宿主: Escherichia coli (大腸菌) |
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#2: タンパク質 | 分子量: 21622.275 Da / 分子数: 1 / Mutation: G12C / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: KRAS, KRAS2, RASK2 / 発現宿主: Escherichia coli (大腸菌) / 参照: UniProt: P01116, small monomeric GTPase |
#3: 化合物 | ChemComp-MG / |
#4: 化合物 | ChemComp-GDP / |
#5: 化合物 | ChemComp-MOV / |
研究の焦点であるリガンドがあるか | 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 |
-試料調製
構成要素 | 名称: KRAS G12C complex with GDP and AMG 510 imaged on a cryo-EM imaging scaffold タイプ: COMPLEX / Entity ID: #1-#2 / 由来: RECOMBINANT |
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分子量 | 実験値: NO |
由来(天然) | 生物種: synthetic construct (人工物) |
由来(組換発現) | 生物種: Escherichia coli (大腸菌) |
緩衝液 | pH: 8 |
試料 | 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 / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: Quantifoil R2/2 |
急速凍結 | 装置: FEI VITROBOT MARK IV / 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 |
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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): 155000 X / 最大 デフォーカス(公称値): 2250 nm / 最小 デフォーカス(公称値): 1000 nm / Cs: 2.7 mm |
撮影 | 電子線照射量: 40 e/Å2 フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) |
-解析
ソフトウェア |
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EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.19 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 171436 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
原子モデル構築 | プロトコル: AB INITIO MODEL / 空間: REAL | ||||||||||||||||||||||||
精密化 | 交差検証法: NONE 立体化学のターゲット値: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
原子変位パラメータ | Biso mean: 82.31 Å2 | ||||||||||||||||||||||||
拘束条件 |
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