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基本情報
登録情報 | ![]() | |||||||||
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タイトル | CryoEM structure of human PI3K-alpha (P85/P110-H1047R) with QR-8557 binding at an allosteric site | |||||||||
![]() | CryoEM density map of human PI3K-alpha (P85/P110-H1047R) with Cpd2 binding at an unidentified allosteric site | |||||||||
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![]() | PI3K-alpha / lipid kinase / allosteric inhibition / ONCOPROTEIN | |||||||||
機能・相同性 | ![]() perinuclear endoplasmic reticulum membrane / regulation of toll-like receptor 4 signaling pathway / response to muscle inactivity / phosphatidylinositol kinase activity / negative regulation of actin filament depolymerization / regulation of actin filament organization / response to L-leucine / positive regulation of focal adhesion disassembly / response to butyrate / phosphatidylinositol 3-kinase activator activity ...perinuclear endoplasmic reticulum membrane / regulation of toll-like receptor 4 signaling pathway / response to muscle inactivity / phosphatidylinositol kinase activity / negative regulation of actin filament depolymerization / regulation of actin filament organization / response to L-leucine / positive regulation of focal adhesion disassembly / response to butyrate / phosphatidylinositol 3-kinase activator activity / 1-phosphatidylinositol-3-kinase regulator activity / positive regulation of endoplasmic reticulum unfolded protein response / phosphatidylinositol 3-kinase regulator activity / IRS-mediated signalling / interleukin-18-mediated signaling pathway / T follicular helper cell differentiation / autosome genomic imprinting / phosphatidylinositol 3-kinase complex / myeloid leukocyte migration / PI3K events in ERBB4 signaling / cellular response to hydrostatic pressure / phosphatidylinositol 3-kinase regulatory subunit binding / regulation of cellular respiration / neurotrophin TRKA receptor binding / Activated NTRK2 signals through PI3K / cis-Golgi network / ErbB-3 class receptor binding / negative regulation of fibroblast apoptotic process / Activated NTRK3 signals through PI3K / transmembrane receptor protein tyrosine kinase adaptor activity / phosphatidylinositol 3-kinase complex, class IB / positive regulation of protein localization to membrane / vasculature development / 1-phosphatidylinositol-4-phosphate 3-kinase activity / Signaling by cytosolic FGFR1 fusion mutants / Co-stimulation by ICOS / RHOD GTPase cycle / cardiac muscle cell contraction / RHOF GTPase cycle / phosphatidylinositol 3-kinase complex, class IA / kinase activator activity / Nephrin family interactions / anoikis / Signaling by LTK in cancer / phosphatidylinositol-3-phosphate biosynthetic process / positive regulation of leukocyte migration / relaxation of cardiac muscle / Signaling by LTK / MET activates PI3K/AKT signaling / PI3K/AKT activation / negative regulation of stress fiber assembly / 1-phosphatidylinositol-4,5-bisphosphate 3-kinase activity / RND1 GTPase cycle / positive regulation of filopodium assembly / phosphatidylinositol-4,5-bisphosphate 3-kinase / RND2 GTPase cycle / vascular endothelial growth factor signaling pathway / RND3 GTPase cycle / phosphatidylinositol 3-kinase / insulin binding / growth hormone receptor signaling pathway / 1-phosphatidylinositol-3-kinase activity / Signaling by ALK / RHOB GTPase cycle / RHOV GTPase cycle / PI-3K cascade:FGFR3 / natural killer cell mediated cytotoxicity / Erythropoietin activates Phosphoinositide-3-kinase (PI3K) / GP1b-IX-V activation signalling / negative regulation of macroautophagy / PI-3K cascade:FGFR2 / phosphatidylinositol-mediated signaling / PI-3K cascade:FGFR4 / response to dexamethasone / PI-3K cascade:FGFR1 / RHOC GTPase cycle / RHOJ GTPase cycle / intracellular glucose homeostasis / negative regulation of osteoclast differentiation / phosphatidylinositol phosphate biosynthetic process / Synthesis of PIPs at the plasma membrane / RHOU GTPase cycle / CDC42 GTPase cycle / negative regulation of anoikis / RET signaling / PI3K events in ERBB2 signaling / insulin receptor substrate binding / Interleukin-3, Interleukin-5 and GM-CSF signaling / PI3K Cascade / T cell differentiation / protein kinase activator activity / RHOG GTPase cycle / intercalated disc / extrinsic apoptotic signaling pathway via death domain receptors / regulation of multicellular organism growth / negative regulation of cell-matrix adhesion / RHOA GTPase cycle / CD28 dependent PI3K/Akt signaling / positive regulation of TOR signaling / Role of LAT2/NTAL/LAB on calcium mobilization 類似検索 - 分子機能 | |||||||||
生物種 | ![]() | |||||||||
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 | |||||||||
![]() | Huang X / Ren X / Zhong W | |||||||||
資金援助 | 1件
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![]() | ![]() タイトル: Cryo-EM structures reveal two allosteric inhibition modes of PI3Kα involving a re-shaping of the activation loop. 著者: Xiuliang Huang / Kailiang Wang / Jing Han / Xiumei Chen / Zhenglin Wang / Tianlun Wu / Bo Yu / Feng Zhao / Xinjuan Wang / Huijuan Li / Zhi Xie / Xiaotian Zhu / Wenge Zhong / Xiaoming Ren / ![]() ![]() 要旨: PI3Kα is a lipid kinase that phosphorylates PIP2 and generates PIP3. The hyperactive PI3Kα mutation, H1047R, accounts for about 14% of breast cancer, making it a highly attractive target for drug ...PI3Kα is a lipid kinase that phosphorylates PIP2 and generates PIP3. The hyperactive PI3Kα mutation, H1047R, accounts for about 14% of breast cancer, making it a highly attractive target for drug discovery. Here, we report the cryo-EM structures of PI3Kα bound to two different allosteric inhibitors QR-7909 and QR-8557 at a global resolution of 2.7 Å and 3.0 Å, respectively. The structures reveal two distinct binding pockets on the opposite sides of the activation loop. Structural and MD simulation analyses show that the allosteric binding of QR-7909 and QR-8557 inhibit PI3Kα hyper-activity by reducing the fluctuation and mobility of the activation loop. Our work provides a strong rational basis for a further optimization and development of highly selective drug candidates to treat PI3Kα-driven cancers. | |||||||||
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構造の表示
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マップデータ | ![]() | 59.9 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 16.8 KB 16.8 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() | 10.8 KB | 表示 | ![]() |
画像 | ![]() | 45.4 KB | ||
Filedesc metadata | ![]() | 6.3 KB | ||
その他 | ![]() ![]() | 49.7 MB 49.8 MB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 913.9 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 913.5 KB | 表示 | |
XML形式データ | ![]() | 16.1 KB | 表示 | |
CIF形式データ | ![]() | 21.2 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 8w9bMC ![]() 8w9aC M: このマップから作成された原子モデル 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 ![]() |
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リンク
EMDBのページ | ![]() ![]() |
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「今月の分子」の関連する項目 |
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マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||||||
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注釈 | CryoEM density map of human PI3K-alpha (P85/P110-H1047R) with Cpd2 binding at an unidentified allosteric site | ||||||||||||||||||||||||||||||||||||
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: 0.74 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
-ハーフマップ: Half map 1 of Cpd2-bound human PI3K-alpha (P85/P110-H1047R)
ファイル | emd_37363_half_map_1.map | ||||||||||||
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注釈 | Half map 1 of Cpd2-bound human PI3K-alpha (P85/P110-H1047R) | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: Half map 2 of Cpd2-bound human PI3K-alpha (P85/P110-H1047R)
ファイル | emd_37363_half_map_2.map | ||||||||||||
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注釈 | Half map 2 of Cpd2-bound human PI3K-alpha (P85/P110-H1047R) | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
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試料の構成要素
-全体 : human PI3K-alpha (P85/P110-H1047R) with QR-8557 binding at an all...
全体 | 名称: human PI3K-alpha (P85/P110-H1047R) with QR-8557 binding at an allosteric site |
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要素 |
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-超分子 #1: human PI3K-alpha (P85/P110-H1047R) with QR-8557 binding at an all...
超分子 | 名称: human PI3K-alpha (P85/P110-H1047R) with QR-8557 binding at an allosteric site タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1-#2 |
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由来(天然) | 生物種: ![]() |
-分子 #1: Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit ...
分子 | 名称: Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform タイプ: protein_or_peptide / ID: 1 / コピー数: 1 / 光学異性体: LEVO / EC番号: phosphatidylinositol 3-kinase |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 124.23075 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: MPPRPSSGEL WGIHLMPPRI LVECLLPNGM IVTLECLREA TLITIKHELF KEARKYPLHQ LLQDESSYIF VSVTQEAERE EFFDETRRL CDLRLFQPFL KVIEPVGNRE EKILNREIGF AIGMPVCEFD MVKDPEVQDF RRNILNVCKE AVDLRDLNSP H SRAMYVYP ...文字列: MPPRPSSGEL WGIHLMPPRI LVECLLPNGM IVTLECLREA TLITIKHELF KEARKYPLHQ LLQDESSYIF VSVTQEAERE EFFDETRRL CDLRLFQPFL KVIEPVGNRE EKILNREIGF AIGMPVCEFD MVKDPEVQDF RRNILNVCKE AVDLRDLNSP H SRAMYVYP PNVESSPELP KHIYNKLDKG QIIVVIWVIV SPNNDKQKYT LKINHDCVPE QVIAEAIRKK TRSMLLSSEQ LK LCVLEYQ GKYILKVCGC DEYFLEKYPL SQYKYIRSCI MLGRMPNLML MAKESLYSQL PMDCFTMPSY SRRISTATPY MNG ETSTKS LWVINSALRI KILCATYVNV NIRDIDKIYV RTGIYHGGEP LCDNVNTQRV PCSNPRWNEW LNYDIYIPDL PRAA RLCLS ICSVKGRKGA KEEHCPLAWG NINLFDYTDT LVSGKMALNL WPVPHGLEDL LNPIGVTGSN PNKETPCLEL EFDWF SSVV KFPDMSVIEE HANWSVSREA GFSYSHAGLS NRLARDNELR ENDKEQLKAI STRDPLSEIT EQEKDFLWSH RHYCVT IPE ILPKLLLSVK WNSRDEVAQM YCLVKDWPPI KPEQAMELLD CNYPDPMVRG FAVRCLEKYL TDDKLSQYLI QLVQVLK YE QYLDNLLVRF LLKKALTNQR IGHFFFWHLK SEMHNKTVSQ RFGLLLESYC RACGMYLKHL NRQVEAMEKL INLTDILK Q EKKDETQKVQ MKFLVEQMRR PDFMDALQGF LSPLNPAHQL GNLRLEECRI MSSAKRPLWL NWENPDIMSE LLFQNNEII FKNGDDLRQD MLTLQIIRIM ENIWQNQGLD LRMLPYGCLS IGDCVGLIEV VRNSHTIMQI QCKGGLKGAL QFNSHTLHQW LKDKNKGEI YDAAIDLFTR SCAGYCVATF ILGIGDRHNS NIMVKDDGQL FHIDFGHFLD HKKKKFGYKR ERVPFVLTQD F LIVISKGA QECTKTREFE RFQEMCYKAY LAIRQHANLF INLFSMMLGS GMPELQSFDD IAYIRKTLAL DKTEQEALEY FM KQMNDAR HGGWTTKMDA AAHTIKQHAL N UniProtKB: Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform |
-分子 #2: Phosphatidylinositol 3-kinase regulatory subunit alpha
分子 | 名称: Phosphatidylinositol 3-kinase regulatory subunit alpha 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: ![]() |
分子量 | 理論値: 33.666961 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: MNNNMSLQDA EWYWGDISRE EVNEKLRDTA DGTFLVRDAS TKMHGDYTLT LRKGGNNKLI KIFHRDGKYG FSDPLTFSSV VELINHYRN ESLAQYNPKL DVKLLYPVSK YQQDQVVKED NIEAVGKKLH EYNTQFQEKS REYDRLYEEY TRTSQEIQMK R TAIEAFNE ...文字列: MNNNMSLQDA EWYWGDISRE EVNEKLRDTA DGTFLVRDAS TKMHGDYTLT LRKGGNNKLI KIFHRDGKYG FSDPLTFSSV VELINHYRN ESLAQYNPKL DVKLLYPVSK YQQDQVVKED NIEAVGKKLH EYNTQFQEKS REYDRLYEEY TRTSQEIQMK R TAIEAFNE TIKIFEEQCQ TQERYSKEYI EKFKREGNEK EIQRIMHNYD KLKSRISEII DSRRRLEEDL KKQAAEYREI DK RMNSIKP DLIQLRKTRD QYLMWLTQKG VRQKKLNEWL GN UniProtKB: Phosphatidylinositol 3-kinase regulatory subunit alpha |
-分子 #3: 1-[(1S)-1-(5-fluoranyl-3-methyl-1-benzofuran-2-yl)-2-methyl-propy...
分子 | 名称: 1-[(1S)-1-(5-fluoranyl-3-methyl-1-benzofuran-2-yl)-2-methyl-propyl]-3-(1-oxidanylidene-2,3-dihydroisoindol-5-yl)urea タイプ: ligand / ID: 3 / コピー数: 1 / 式: UJ3 |
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分子量 | 理論値: 395.427 Da |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
緩衝液 | pH: 8 |
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グリッド | モデル: Quantifoil R1.2/1.3 / 材質: GOLD / メッシュ: 400 |
凍結 | 凍結剤: ETHANE |
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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: FEI FALCON IV (4k x 4k) 平均電子線量: 48.5 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: DIFFRACTION / 最大 デフォーカス(公称値): 1.5 µm / 最小 デフォーカス(公称値): 1.0 µm |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |