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基本情報
登録情報 | データベース: EMDB / ID: EMD-23808 | |||||||||
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タイトル | Structure of the phosphoinositide 3-kinase p110 gamma (PIK3CG) p101 (PIK3R5) complex | |||||||||
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![]() | PI3K / p110 / PIK3CG / PIK3R5 / p101 / phosphoinositide 3-kinase / PIP3 / IMMUNE SYSTEM / TRANSFERASE | |||||||||
機能・相同性 | ![]() negative regulation of triglyceride catabolic process / secretory granule localization / natural killer cell chemotaxis / neutrophil extravasation / phosphatidylinositol-4-phosphate 3-kinase / positive regulation of acute inflammatory response / respiratory burst involved in defense response / negative regulation of cardiac muscle contraction / 1-phosphatidylinositol-3-kinase regulator activity / phosphatidylinositol 3-kinase complex ...negative regulation of triglyceride catabolic process / secretory granule localization / natural killer cell chemotaxis / neutrophil extravasation / phosphatidylinositol-4-phosphate 3-kinase / positive regulation of acute inflammatory response / respiratory burst involved in defense response / negative regulation of cardiac muscle contraction / 1-phosphatidylinositol-3-kinase regulator activity / phosphatidylinositol 3-kinase complex / T cell chemotaxis / regulation of calcium ion transmembrane transport / negative regulation of fibroblast apoptotic process / phosphatidylinositol 3-kinase complex, class IB / 1-phosphatidylinositol-4-phosphate 3-kinase activity / Co-stimulation by ICOS / sphingosine-1-phosphate receptor signaling pathway / phosphatidylinositol 3-kinase complex, class IA / phosphatidylinositol-3-phosphate biosynthetic process / 1-phosphatidylinositol-4,5-bisphosphate 3-kinase activity / phosphatidylinositol-4,5-bisphosphate 3-kinase / dendritic cell chemotaxis / phosphatidylinositol 3-kinase / 1-phosphatidylinositol-3-kinase activity / mast cell degranulation / Erythropoietin activates Phosphoinositide-3-kinase (PI3K) / phosphatidylinositol-mediated signaling / hepatocyte apoptotic process / regulation of cell adhesion mediated by integrin / phosphatidylinositol phosphate biosynthetic process / Synthesis of PIPs at the plasma membrane / positive regulation of Rac protein signal transduction / CD28 dependent PI3K/Akt signaling / regulation of angiogenesis / T cell proliferation / GPVI-mediated activation cascade / cellular response to cAMP / ephrin receptor binding / neutrophil chemotaxis / positive regulation of endothelial cell migration / positive regulation of MAP kinase activity / T cell activation / positive regulation of cytokine production / phosphatidylinositol 3-kinase/protein kinase B signal transduction / G-protein beta/gamma-subunit complex binding / platelet aggregation / endocytosis / Constitutive Signaling by Aberrant PI3K in Cancer / G beta:gamma signalling through PI3Kgamma / cell migration / PIP3 activates AKT signaling / positive regulation of cytosolic calcium ion concentration / PI5P, PP2A and IER3 Regulate PI3K/AKT Signaling / phospholipase C-activating G protein-coupled receptor signaling pathway / angiogenesis / adaptive immune response / eukaryotic translation initiation factor 2alpha kinase activity / 3-phosphoinositide-dependent protein kinase activity / DNA-dependent protein kinase activity / ribosomal protein S6 kinase activity / histone H3S10 kinase activity / histone H2AXS139 kinase activity / histone H3S28 kinase activity / histone H4S1 kinase activity / histone H2BS14 kinase activity / histone H3T3 kinase activity / histone H2AS121 kinase activity / Rho-dependent protein serine/threonine kinase activity / histone H2BS36 kinase activity / histone H3S57 kinase activity / histone H2AT120 kinase activity / AMP-activated protein kinase activity / histone H2AS1 kinase activity / histone H3T6 kinase activity / histone H3T11 kinase activity / histone H3T45 kinase activity / positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / non-specific serine/threonine protein kinase / protein kinase activity / immune response / G protein-coupled receptor signaling pathway / inflammatory response / innate immune response / protein serine kinase activity / ATP binding / identical protein binding / nucleus / membrane / plasma membrane / cytosol / cytoplasm 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: 2.89 Å | |||||||||
![]() | Burke JE / Dalwadi U / Rathinaswamy MK / Yip CK | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: HDX-MS-optimized approach to characterize nanobodies as tools for biochemical and structural studies of class IB phosphoinositide 3-kinases. 著者: Manoj K Rathinaswamy / Kaelin D Fleming / Udit Dalwadi / Els Pardon / Noah J Harris / Calvin K Yip / Jan Steyaert / John E Burke / ![]() ![]() 要旨: There is considerable interest in developing antibodies as modulators of signaling pathways. One of the most important signaling pathways in higher eukaryotes is the phosphoinositide 3-kinase (PI3K) ...There is considerable interest in developing antibodies as modulators of signaling pathways. One of the most important signaling pathways in higher eukaryotes is the phosphoinositide 3-kinase (PI3K) pathway, which plays fundamental roles in growth, metabolism, and immunity. The class IB PI3K, PI3Kγ, is a heterodimeric complex composed of a catalytic p110γ subunit bound to a p101 or p84 regulatory subunit. PI3Kγ is a critical component in multiple immune signaling processes and is dependent on activation by Ras and G protein-coupled receptors (GPCRs) to mediate its cellular roles. Here we describe the rapid and efficient characterization of multiple PI3Kγ binding single-chain camelid nanobodies using hydrogen-deuterium exchange (HDX) mass spectrometry (MS) for structural and biochemical studies. We identify nanobodies that stimulated lipid kinase activity, block Ras activation, and specifically inhibited p101-mediated GPCR activation. Overall, our work reveals insight into PI3Kγ regulation and identifies sites that may be exploited for therapeutic development. | |||||||||
履歴 |
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構造の表示
ムービー |
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構造ビューア | EMマップ: ![]() ![]() ![]() |
添付画像 |
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マップデータ | ![]() | 82.6 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 20.8 KB 20.8 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() | 10.5 KB | 表示 | ![]() |
画像 | ![]() | 131 KB | ||
Filedesc metadata | ![]() | 8.4 KB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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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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投影像・断面図 | 画像のコントロール
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ボクセルのサイズ | X=Y=Z: 1.059 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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試料の構成要素
-全体 : Ternary complex of p110 gamma with p101 and a p101 binding nanobody
全体 | 名称: Ternary complex of p110 gamma with p101 and a p101 binding nanobody |
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要素 |
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-超分子 #1: Ternary complex of p110 gamma with p101 and a p101 binding nanobody
超分子 | 名称: Ternary complex of p110 gamma with p101 and a p101 binding nanobody タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all 詳細: Nanobody binds to GBD domain, but was too fleixble to be built in the atomic model |
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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 gamma 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: 126.627406 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MELENYKQPV VLREDNCRRR RRMKPRSAAA SLSSMELIPI EFVLPTSQRK CKSPETALLH VAGHGNVEQM KAQVWLRALE TSVAADFYH RLGPHHFLLL YQKKGQWYEI YDKYQVVQTL DCLRYWKATH RSPGQIHLVQ RHPPSEESQA FQRQLTALIG Y DVTDVSNV ...文字列: MELENYKQPV VLREDNCRRR RRMKPRSAAA SLSSMELIPI EFVLPTSQRK CKSPETALLH VAGHGNVEQM KAQVWLRALE TSVAADFYH RLGPHHFLLL YQKKGQWYEI YDKYQVVQTL DCLRYWKATH RSPGQIHLVQ RHPPSEESQA FQRQLTALIG Y DVTDVSNV HDDELEFTRR GLVTPRMAEV ASRDPKLYAM HPWVTSKPLP EYLWKKIANN CIFIVIHRST TSQTIKVSPD DT PGAILQS FFTKMAKKKS LMDIPESQSE QDFVLRVCGR DEYLVGETPI KNFQWVRHCL KNGEEIHVVL DTPPDPALDE VRK EEWPLV DDCTGVTGYH EQLTIHGKDH ESVFTVSLWD CDRKFRVKIR GIDIPVLPRN TDLTVFVEAN IQHGQQVLCQ RRTS PKPFT EEVLWNVWLE FSIKIKDLPK GALLNLQIYC GKAPALSSKA SAESPSSESK GKVQLLYYVN LLLIDHRFLL RRGEY VLHM WQISGKGEDQ GSFNADKLTS ATNPDKENSM SISILLDNYC HPIALPKHQP TPDPEGDRVR AEMPNQLRKQ LEAIIA TDP LNPLTAEDKE LLWHFRYESL KHPKAYPKLF SSVKWGQQEI VAKTYQLLAR REVWDQSALD VGLTMQLLDC NFSDENV RA IAVQKLESLE DDDVLHYLLQ LVQAVKFEPY HDSALARFLL KRGLRNKRIG HFLFWFLRSE IAQSRHYQQR FAVILEAY L RGCGTAMLHD FTQQVQVIEM LQKVTLDIKS LSAEKYDVSS QVISQLKQKL ENLQNSQLPE SFRVPYDPGL KAGALAIEK CKVMASKKKP LWLEFKCADP TALSNETIGI IFKHGDDLRQ DMLILQILRI MESIWETESL DLCLLPYGCI STGDKIGMIE IVKDATTIA KIQQSTVGNT GAFKDEVLNH WLKEKSPTEE KFQAAVERFV YSCAGYCVAT FVLGIGDRHN DNIMITETGN L FHIDFGHI LGNYKSFLGI NKERVPFVLT PDFLFVMGTS GKKTSPHFQK FQDICVKAYL ALRHHTNLLI ILFSMMLMTG MP QLTSKED IEYIRDALTV GKNEEDAKKY FLDQIEVCRD KGWTVQFNWF LHLVLGIKQG EKHSA UniProtKB: Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit gamma isoform |
-分子 #2: Phosphoinositide 3-kinase regulatory subunit 5
分子 | 名称: Phosphoinositide 3-kinase regulatory subunit 5 / 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: 97.471805 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: GAGTMQPGAT TCTEDRIQHA LERCLHGLSL SRRSTSWSAG LCLNCWSLQE LVSRDPGHFL ILLEQILQKT REVQEKGTYD LLAPLALLF YSTVLCTPHF PPDSDLLLKA ARTYHRFLTW PVPYCSICQE LLTFIDAELK APGISYQRLV RAEQGLSTRS H RSSTVTVL ...文字列: GAGTMQPGAT TCTEDRIQHA LERCLHGLSL SRRSTSWSAG LCLNCWSLQE LVSRDPGHFL ILLEQILQKT REVQEKGTYD LLAPLALLF YSTVLCTPHF PPDSDLLLKA ARTYHRFLTW PVPYCSICQE LLTFIDAELK APGISYQRLV RAEQGLSTRS H RSSTVTVL LLNPVEVQAE FLDVADKLST PGPSPHSAYI TLLLHAFQAT FGAHCDLSGL HRRLQSKTLA ELEAIFTETA EA QELASGI GDAAEARQWL RTKLQAVGEK AGFPGVLDTA KPGKLRTIPI PVARCYTYSW NQDSFDILQE ILLKEQELLQ PEI LDDEED EDEEDEEEDL DADGHCAERD SVLSTGSAAS HASTLSLASS QASGPTLSRQ LLTSFVSGLS DGVDSGYMED IEES AYERP RRPGGHERRG HRRPGQKFNR IYKLFKSTSQ MVLRRDSRSL EGSPDSGPPL RRAGSLCSPL DSPTLPPSRA QRSRS LPQP KLSPQLPGWL LAPASRHQRR RPFLSGDEDP KASTLRVVVF GSDRISGKVA RAYSNLRRLE NNRPLLTRFF KLQFFY VPV KRSRGTGTPT SPAPRSQTPP LPTDAPRHPG PAELGAAPWE ESTNDISHYL GMLDPWYERN VLGLMHLPPE VLCQSLK AE PRPLEGSPAQ LPILADMLLY YCRFAARPVL LQVYQTELTF ITGEKTTEIF IHSLELGHSA ATRAIKASGP GSKRLGID G DREAVPLTLQ IIYSKGAISG RSRWSNMEKL CTSVNLSKAC RQQEELDSST EALTLNLTEV VKRQTPKSKK GFNQISTSQ IKVDKVQIIG SNSCPFAVCL DQDERKILQS VIRCEVSPCY KPEKSSLCPP PQRPSYPPAP ATPDLCSLLC LPIMTFSGAL P UniProtKB: Phosphoinositide 3-kinase regulatory subunit 5 |
-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
濃度 | 0.45 mg/mL | |||||||||||||||
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緩衝液 | pH: 8.5 構成要素:
詳細: Freshly prepared gel filtration buffer, filtered through 0.22um filter and degassed | |||||||||||||||
グリッド | モデル: C-flat-2/2 / 材質: COPPER / メッシュ: 300 / 前処理 - タイプ: GLOW DISCHARGE / 前処理 - 時間: 25 sec. / 前処理 - 雰囲気: AIR / 前処理 - 気圧: 0.039 kPa 詳細: Glow discharged using the Pelco EasiGlow. 15mA Current. | |||||||||||||||
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / チャンバー内温度: 277 K / 装置: FEI VITROBOT MARK IV / 詳細: 1.5s blot time, -5 blot force. | |||||||||||||||
詳細 | Specimen was a 1:1:1 molar ratio of p110g-p101-nanobody, purified to homogeneity by gel filtration. |
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電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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特殊光学系 | エネルギーフィルター - 名称: GIF Bioquantum / エネルギーフィルター - スリット幅: 20 eV |
撮影 | フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 撮影したグリッド数: 1 / 実像数: 6808 / 平均電子線量: 36.4 e/Å2 詳細: Movies were collected in super-resolution mode set to collect 3 shots per grid hole over 9 holes by beam-shift before applying a stage shift. |
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: BRIGHT FIELD / Cs: 2.7 mm / 最大 デフォーカス(公称値): 2.4 µm / 最小 デフォーカス(公称値): 1.0 µm |
試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER ホルダー冷却材: NITROGEN |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |