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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: 6nts | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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タイトル | Protein Phosphatase 2A (Aalpha-B56alpha-Calpha) holoenzyme in complex with a Small Molecule Activator of PP2A (SMAP) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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![]() | HYDROLASE/ACTIVATOR / Holoenzyme complex / Phosphatase / Activator / HYDROLASE-ACTIVATOR complex | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
機能・相同性 | ![]() meiotic spindle elongation / Integration of energy metabolism / PP2A-mediated dephosphorylation of key metabolic factors / mitotic sister chromatid separation / MASTL Facilitates Mitotic Progression / protein phosphatase type 2A complex / RNA polymerase II CTD heptapeptide repeat S2 phosphatase activity / RNA polymerase II CTD heptapeptide repeat S7 phosphatase activity / protein serine/threonine phosphatase complex / regulation of meiotic cell cycle process involved in oocyte maturation ...meiotic spindle elongation / Integration of energy metabolism / PP2A-mediated dephosphorylation of key metabolic factors / mitotic sister chromatid separation / MASTL Facilitates Mitotic Progression / protein phosphatase type 2A complex / RNA polymerase II CTD heptapeptide repeat S2 phosphatase activity / RNA polymerase II CTD heptapeptide repeat S7 phosphatase activity / protein serine/threonine phosphatase complex / regulation of meiotic cell cycle process involved in oocyte maturation / peptidyl-threonine dephosphorylation / meiotic sister chromatid cohesion, centromeric / INTAC complex / FAR/SIN/STRIPAK complex / RNA polymerase II CTD heptapeptide repeat S5 phosphatase activity / Regulation of glycolysis by fructose 2,6-bisphosphate metabolism / Inhibition of replication initiation of damaged DNA by RB1/E2F1 / female meiotic nuclear division / protein phosphatase regulator activity / GABA receptor binding / APC truncation mutants have impaired AXIN binding / AXIN missense mutants destabilize the destruction complex / Truncations of AMER1 destabilize the destruction complex / protein antigen binding / ERKs are inactivated / Initiation of Nuclear Envelope (NE) Reformation / positive regulation of extrinsic apoptotic signaling pathway in absence of ligand / Beta-catenin phosphorylation cascade / Signaling by GSK3beta mutants / CTNNB1 S33 mutants aren't phosphorylated / CTNNB1 S37 mutants aren't phosphorylated / CTNNB1 S45 mutants aren't phosphorylated / CTNNB1 T41 mutants aren't phosphorylated / RNA polymerase II transcription initiation surveillance / Co-stimulation by CD28 / regulation of growth / M band / Disassembly of the destruction complex and recruitment of AXIN to the membrane / negative regulation of epithelial to mesenchymal transition / Co-inhibition by CTLA4 / Platelet sensitization by LDL / protein-serine/threonine phosphatase / negative regulation of glycolytic process through fructose-6-phosphate / positive regulation of NLRP3 inflammasome complex assembly / ERK/MAPK targets / protein serine/threonine phosphatase activity / mesoderm development / vascular endothelial cell response to oscillatory fluid shear stress / T cell homeostasis / regulation of G1/S transition of mitotic cell cycle / regulation of cell differentiation / regulation of microtubule polymerization / phosphoprotein phosphatase activity / lateral plasma membrane / chromosome, centromeric region / DARPP-32 events / negative regulation of hippo signaling / negative regulation of protein localization to plasma membrane / Cyclin A/B1/B2 associated events during G2/M transition / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / protein dephosphorylation / spindle assembly / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / Loss of Nlp from mitotic centrosomes / Loss of proteins required for interphase microtubule organization from the centrosome / Recruitment of mitotic centrosome proteins and complexes / negative regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / Recruitment of NuMA to mitotic centrosomes / Anchoring of the basal body to the plasma membrane / protein tyrosine phosphatase activity / Resolution of Sister Chromatid Cohesion / AURKA Activation by TPX2 / Turbulent (oscillatory, disturbed) flow shear stress activates signaling by PIEZO1 and integrins in endothelial cells / Spry regulation of FGF signaling / meiotic cell cycle / chromosome segregation / Degradation of beta-catenin by the destruction complex / RAF activation / RHO GTPases Activate Formins / negative regulation of canonical Wnt signaling pathway / PKR-mediated signaling / tau protein binding / response to lead ion / Negative regulation of MAPK pathway / Cyclin D associated events in G1 / kinase binding / Z disc / Separation of Sister Chromatids / Regulation of TP53 Degradation / spindle pole / Regulation of PLK1 Activity at G2/M Transition / mitotic cell cycle / microtubule cytoskeleton / PI5P, PP2A and IER3 Regulate PI3K/AKT Signaling / protein-containing complex assembly / neuron projection / intracellular signal transduction / membrane raft 類似検索 - 分子機能 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
生物種 | ![]() | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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: 3.63 Å | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Huang, W. / Taylor, D. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Selective PP2A Enhancement through Biased Heterotrimer Stabilization. 著者: Daniel Leonard / Wei Huang / Sudeh Izadmehr / Caitlin M O'Connor / Danica D Wiredja / Zhizhi Wang / Nilesh Zaware / Yinghua Chen / Daniela M Schlatzer / Janna Kiselar / Nikhil Vasireddi / ...著者: Daniel Leonard / Wei Huang / Sudeh Izadmehr / Caitlin M O'Connor / Danica D Wiredja / Zhizhi Wang / Nilesh Zaware / Yinghua Chen / Daniela M Schlatzer / Janna Kiselar / Nikhil Vasireddi / Stefan Schüchner / Abbey L Perl / Matthew D Galsky / Wenqing Xu / David L Brautigan / Egon Ogris / Derek J Taylor / Goutham Narla / ![]() ![]() 要旨: Impairment of protein phosphatases, including the family of serine/threonine phosphatases designated PP2A, is essential for the pathogenesis of many diseases, including cancer. The ability of PP2A to ...Impairment of protein phosphatases, including the family of serine/threonine phosphatases designated PP2A, is essential for the pathogenesis of many diseases, including cancer. The ability of PP2A to dephosphorylate hundreds of proteins is regulated by over 40 specificity-determining regulatory "B" subunits that compete for assembly and activation of heterogeneous PP2A heterotrimers. Here, we reveal how a small molecule, DT-061, specifically stabilizes the B56α-PP2A holoenzyme in a fully assembled, active state to dephosphorylate selective substrates, such as its well-known oncogenic target, c-Myc. Our 3.6 Å structure identifies molecular interactions between DT-061 and all three PP2A subunits that prevent dissociation of the active enzyme and highlight inherent mechanisms of PP2A complex assembly. Thus, our findings provide fundamental insights into PP2A complex assembly and regulation, identify a unique interfacial stabilizing mode of action for therapeutic targeting, and aid in the development of phosphatase-based therapeutics tailored against disease specific phospho-protein targets. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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構造の表示
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構造ビューア | 分子: ![]() ![]() |
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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 | ![]() | 233.8 KB | 表示 | ![]() |
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PDB形式 | ![]() | 181.9 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 1.4 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.4 MB | 表示 | |
XML形式データ | ![]() | 48.8 KB | 表示 | |
CIF形式データ | ![]() | 73.4 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
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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: 65378.344 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() | ||||
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#2: タンパク質 | 分子量: 56266.555 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() | ||||
#3: タンパク質 | 分子量: 35021.500 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() ![]() 参照: UniProt: P67775, protein-serine/threonine phosphatase | ||||
#4: 化合物 | ChemComp-L2J / | ||||
#5: 化合物 | 研究の焦点であるリガンドがあるか | Y | 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 |
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試料調製
構成要素 | 名称: PP2A Aalpha-B56alpha-Calpha holoenzyme in complex with a Small Molecule Activator of PP2A (SMAP) タイプ: COMPLEX / Entity ID: #1-#2 / 由来: RECOMBINANT |
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由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() ![]() |
緩衝液 | pH: 7.02 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
試料支持 | 詳細: unspecified |
急速凍結 | 凍結剤: ETHANE |
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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: FEI TITAN KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD |
撮影 | 電子線照射量: 40 e/Å2 フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
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解析
ソフトウェア | 名称: PHENIX / バージョン: 1.18rc3_3805: / 分類: 精密化 | ||||||||||||||||||||||||
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EMソフトウェア | 名称: PHENIX / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.63 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 83784 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
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: 139.2 Å2 | ||||||||||||||||||||||||
拘束条件 |
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