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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: 6pcv | ||||||||||||
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タイトル | Single Particle Reconstruction of Phosphatidylinositol (3,4,5) trisphosphate-dependent Rac exchanger 1 bound to G protein beta gamma subunits | ||||||||||||
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![]() | SIGNALING PROTEIN / RhoGEF / G protein / Complex / Phosphatase fold | ||||||||||||
機能・相同性 | ![]() regulation of dendrite development / Olfactory Signaling Pathway / Sensory perception of sweet, bitter, and umami (glutamate) taste / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / regulation of actin filament polymerization / neutrophil activation / Activation of the phototransduction cascade / negative regulation of TOR signaling / regulation of small GTPase mediated signal transduction / protein serine/threonine kinase inhibitor activity ...regulation of dendrite development / Olfactory Signaling Pathway / Sensory perception of sweet, bitter, and umami (glutamate) taste / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / regulation of actin filament polymerization / neutrophil activation / Activation of the phototransduction cascade / negative regulation of TOR signaling / regulation of small GTPase mediated signal transduction / protein serine/threonine kinase inhibitor activity / Activation of G protein gated Potassium channels / G-protein activation / G beta:gamma signalling through PI3Kgamma / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through PLC beta / ADP signalling through P2Y purinoceptor 1 / Thromboxane signalling through TP receptor / Presynaptic function of Kainate receptors / G beta:gamma signalling through CDC42 / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G alpha (12/13) signalling events / Glucagon-type ligand receptors / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Adrenaline,noradrenaline inhibits insulin secretion / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / Ca2+ pathway / Thrombin signalling through proteinase activated receptors (PARs) / G alpha (z) signalling events / Extra-nuclear estrogen signaling / G alpha (s) signalling events / G alpha (q) signalling events / RHOB GTPase cycle / G alpha (i) signalling events / NRAGE signals death through JNK / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / superoxide metabolic process / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / Vasopressin regulates renal water homeostasis via Aquaporins / RHOC GTPase cycle / RHOJ GTPase cycle / RHOQ GTPase cycle / CDC42 GTPase cycle / T cell differentiation / RHOG GTPase cycle / RHOA GTPase cycle / RAC2 GTPase cycle / RAC3 GTPase cycle / actin filament polymerization / RAC1 GTPase cycle / positive regulation of substrate adhesion-dependent cell spreading / neutrophil chemotaxis / GTPase activator activity / dendritic shaft / guanyl-nucleotide exchange factor activity / phospholipid binding / photoreceptor disc membrane / cellular response to catecholamine stimulus / adenylate cyclase-activating dopamine receptor signaling pathway / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / heterotrimeric G-protein complex / G alpha (12/13) signalling events / sensory perception of taste / signaling receptor complex adaptor activity / growth cone / GTPase binding / retina development in camera-type eye / phospholipase C-activating G protein-coupled receptor signaling pathway / cell population proliferation / intracellular signal transduction / positive regulation of cell migration / G protein-coupled receptor signaling pathway / GTPase activity / synapse / protein-containing complex binding / perinuclear region of cytoplasm / enzyme binding / membrane / plasma membrane / cytosol / cytoplasm 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: 3.2 Å | ||||||||||||
![]() | Cash, J.N. / Cianfrocco, M.A. / Tesmer, J.J.G. | ||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Cryo-electron microscopy structure and analysis of the P-Rex1-Gβγ signaling scaffold. 著者: Jennifer N Cash / Sarah Urata / Sheng Li / Sandeep K Ravala / Larisa V Avramova / Michael D Shost / J Silvio Gutkind / John J G Tesmer / Michael A Cianfrocco / ![]() 要旨: PIP-dependent Rac exchanger 1 (P-Rex1) is activated downstream of G protein-coupled receptors to promote neutrophil migration and metastasis. The structure of more than half of the enzyme and its ...PIP-dependent Rac exchanger 1 (P-Rex1) is activated downstream of G protein-coupled receptors to promote neutrophil migration and metastasis. The structure of more than half of the enzyme and its regulatory G protein binding site are unknown. Our 3.2 Å cryo-EM structure of the P-Rex1-Gβγ complex reveals that the carboxyl-terminal half of P-Rex1 adopts a complex fold most similar to those of phosphoinositide phosphatases. Although catalytically inert, the domain coalesces with a DEP domain and two PDZ domains to form an extensive docking site for Gβγ. Hydrogen-deuterium exchange mass spectrometry suggests that Gβγ binding induces allosteric changes in P-Rex1, but functional assays indicate that membrane localization is also required for full activation. Thus, a multidomain assembly is key to the regulation of P-Rex1 by Gβγ and the formation of a membrane-localized scaffold optimized for recruitment of other signaling proteins such as PKA and PTEN. | ||||||||||||
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 | 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 | ![]() | 237.9 KB | 表示 | ![]() |
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PDB形式 | ![]() | 169.8 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
関連構造データ | ![]() 20308MC 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 | |
電子顕微鏡画像生データ | ![]() Data size: 3.0 TB Data #1: Movie files (.tif) for P-Rex1-Gbg [micrographs - multiframe] Data #2: Micrograph files (.mrc) & CTF log files for P-Rex1-Gbg [micrographs - single frame] Data #3: Extracted particles from Warp for P-Rex1-Gbg [picked particles - single frame - processed]) |
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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: 184840.891 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: 37416.930 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: 9226.547 Da / 分子数: 1 / Mutation: C68S / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
-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 |
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分子量 |
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由来(天然) | 生物種: ![]() | ||||||||||||||||||||||||||||||
緩衝液 | pH: 8 | ||||||||||||||||||||||||||||||
試料 | 濃度: 0.7 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, UltrAuFoil, 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: 277 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: FEI TITAN KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 29000 X / Cs: 2.7 mm / C2レンズ絞り径: 70 µm |
試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
撮影 | 電子線照射量: 47 e/Å2 / 検出モード: COUNTING フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 撮影したグリッド数: 2 / 実像数: 6746 |
画像スキャン | 横: 3838 / 縦: 3710 |
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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 | ||||||||||||||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 905464 詳細: 600,588 particles (untilted) and 304,876 particles (30 degree tilted) | ||||||||||||||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 3.2 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 205599 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||
原子モデル構築 | B value: 83 / プロトコル: AB INITIO MODEL / 空間: REAL | ||||||||||||||||||||||||||||||||||||
原子モデル構築 | 3D fitting-ID: 1 / Source name: PDB / タイプ: experimental model
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精密化 | 立体化学のターゲット値: CDL v1.2 | ||||||||||||||||||||||||||||||||||||
拘束条件 |
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