登録情報 データベース : EMDB / ID : EMD-22857 構造の表示 ダウンロードとリンクタイトル Structure of a ternary KRas(G13D)-SOS complex マップデータ 詳細 試料複合体 : A ternary complex of KRas(G13D) and SOScatタンパク質・ペプチド : GTPase KRasタンパク質・ペプチド : Son of sevenless homolog 1リガンド : PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTERリガンド : MAGNESIUM ION 詳細 キーワード Ras / Sos / GTPase / HYDROLASE-SIGNALING PROTEIN complex機能・相同性 機能・相同性情報分子機能 ドメイン・相同性 構成要素
midbrain morphogenesis / regulation of pro-B cell differentiation / vitellogenesis / pericardium morphogenesis / cardiac atrium morphogenesis / heart trabecula morphogenesis / regulation of T cell differentiation in thymus / GTPase complex / Interleukin-15 signaling / Activation of RAC1 ... midbrain morphogenesis / regulation of pro-B cell differentiation / vitellogenesis / pericardium morphogenesis / cardiac atrium morphogenesis / heart trabecula morphogenesis / regulation of T cell differentiation in thymus / GTPase complex / Interleukin-15 signaling / Activation of RAC1 / positive regulation of small GTPase mediated signal transduction / Signaling by LTK / blood vessel morphogenesis / epidermal growth factor receptor binding / forebrain astrocyte development / positive regulation of epidermal growth factor receptor signaling pathway / Regulation of KIT signaling / leukocyte migration / negative regulation of epithelial cell differentiation / NRAGE signals death through JNK / type I pneumocyte differentiation / regulation of synaptic transmission, GABAergic / epithelial tube branching involved in lung morphogenesis / Rac protein signal transduction / eyelid development in camera-type eye / Fc-epsilon receptor signaling pathway / positive regulation of Rac protein signal transduction / skeletal muscle cell differentiation / roof of mouth development / neurotrophin TRK receptor signaling pathway / GRB2:SOS provides linkage to MAPK signaling for Integrins / Signaling by RAS GAP mutants / Signaling by RAS GTPase mutants / Activation of RAS in B cells / B cell homeostasis / regulation of T cell proliferation / RAS signaling downstream of NF1 loss-of-function variants / RET signaling / RUNX3 regulates p14-ARF / SOS-mediated signalling / Activated NTRK3 signals through RAS / Activated NTRK2 signals through RAS / SHC1 events in ERBB4 signaling / hair follicle development / fibroblast growth factor receptor signaling pathway / Role of LAT2/NTAL/LAB on calcium mobilization / Signalling to RAS / Interleukin receptor SHC signaling / Signal attenuation / Activated NTRK2 signals through FRS2 and FRS3 / SHC-related events triggered by IGF1R / glial cell proliferation / Estrogen-stimulated signaling through PRKCZ / SHC-mediated cascade:FGFR3 / MET activates RAS signaling / Schwann cell development / SHC-mediated cascade:FGFR2 / Signaling by PDGFRA transmembrane, juxtamembrane and kinase domain mutants / Signaling by PDGFRA extracellular domain mutants / PTK6 Regulates RHO GTPases, RAS GTPase and MAP kinases / SHC-mediated cascade:FGFR4 / Signaling by CSF3 (G-CSF) / Signaling by FGFR4 in disease / Erythropoietin activates RAS / SHC-mediated cascade:FGFR1 / FRS-mediated FGFR3 signaling / Signaling by FLT3 ITD and TKD mutants / protein-membrane adaptor activity / FRS-mediated FGFR2 signaling / FRS-mediated FGFR4 signaling / Signaling by FGFR3 in disease / p38MAPK events / Tie2 Signaling / positive regulation of glial cell proliferation / FRS-mediated FGFR1 signaling / homeostasis of number of cells within a tissue / Signaling by FGFR2 in disease / striated muscle cell differentiation / GRB2 events in EGFR signaling / SHC1 events in EGFR signaling / RAC1 GTPase cycle / Signaling by FLT3 fusion proteins / FLT3 Signaling / Signaling by FGFR1 in disease / myelination / EGFR Transactivation by Gastrin / NCAM signaling for neurite out-growth / CD209 (DC-SIGN) signaling / FCERI mediated Ca+2 mobilization / GRB2 events in ERBB2 signaling / Downstream signal transduction / Ras activation upon Ca2+ influx through NMDA receptor / SHC1 events in ERBB2 signaling / Insulin receptor signalling cascade / GTPase activator activity / insulin-like growth factor receptor signaling pathway / axon guidance / Antigen activates B Cell Receptor (BCR) leading to generation of second messengers / Constitutive Signaling by Overexpressed ERBB2 / Signaling by phosphorylated juxtamembrane, extracellular and kinase domain KIT mutants 類似検索 - 分子機能 Ras guanine-nucleotide exchange factor, conserved site / Ras Guanine-nucleotide exchange factors domain signature. / RasGEF N-terminal motif / Guanine nucleotide exchange factor for Ras-like GTPases; N-terminal motif / Ras-like guanine nucleotide exchange factor, N-terminal / Ras-like guanine nucleotide exchange factor / Ras guanine-nucleotide exchange factors N-terminal domain profile. / Ras guanine nucleotide exchange factor domain superfamily / Ras guanine-nucleotide exchange factor, catalytic domain superfamily / RasGEF domain ... Ras guanine-nucleotide exchange factor, conserved site / Ras Guanine-nucleotide exchange factors domain signature. / RasGEF N-terminal motif / Guanine nucleotide exchange factor for Ras-like GTPases; N-terminal motif / Ras-like guanine nucleotide exchange factor, N-terminal / Ras-like guanine nucleotide exchange factor / Ras guanine-nucleotide exchange factors N-terminal domain profile. / Ras guanine nucleotide exchange factor domain superfamily / Ras guanine-nucleotide exchange factor, catalytic domain superfamily / RasGEF domain / Ras guanine-nucleotide exchange factors catalytic domain profile. / Guanine nucleotide exchange factor for Ras-like small GTPases / Ras guanine-nucleotide exchange factors catalytic domain / : / SOS1/NGEF-like PH domain / Dbl homology (DH) domain superfamily / RhoGEF domain / Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases / Dbl homology (DH) domain / Dbl homology (DH) domain profile. / Small GTPase, Ras-type / small GTPase Ras family profile. / Ran (Ras-related nuclear proteins) /TC4 subfamily of small GTPases / PH domain profile. / Pleckstrin homology domain. / Pleckstrin homology domain / Rho (Ras homology) subfamily of Ras-like small GTPases / Ras subfamily of RAS small GTPases / Small GTPase / Ras family / Rab subfamily of small GTPases / Histone-fold / Small GTP-binding protein domain / PH-like domain superfamily / P-loop containing nucleoside triphosphate hydrolase 類似検索 - ドメイン・相同性生物種 Homo sapiens (ヒト)手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 3.47 Å 詳細 データ登録者Liu C / Moghadamchargari Z 資金援助 米国, 1件 詳細 詳細を隠すOrganization Grant number 国 National Institutes of Health/National Cancer Institute (NIH/NCI) RO1GM121751 米国
引用ジャーナル : Proc Natl Acad Sci U S A / 年 : 2021タイトル : Molecular assemblies of the catalytic domain of SOS with KRas and oncogenic mutants.著者 : Zahra Moghadamchargari / Mehdi Shirzadeh / Chang Liu / Samantha Schrecke / Charles Packianathan / David H Russell / Minglei Zhao / Arthur Laganowsky / 要旨 : Ras is regulated by a specific guanine nucleotide exchange factor Son of Sevenless (SOS), which facilitates the exchange of inactive, GDP-bound Ras with GTP. The catalytic activity of SOS is also ... Ras is regulated by a specific guanine nucleotide exchange factor Son of Sevenless (SOS), which facilitates the exchange of inactive, GDP-bound Ras with GTP. The catalytic activity of SOS is also allosterically modulated by an active Ras (Ras-GTP). However, it remains poorly understood how oncogenic Ras mutants interact with SOS and modulate its activity. Here, native ion mobility-mass spectrometry is employed to monitor the assembly of the catalytic domain of SOS (SOS) with KRas and three cancer-associated mutants (G12C, G13D, and Q61H), leading to the discovery of different molecular assemblies and distinct conformers of SOS engaging KRas. We also find KRas exhibits high affinity for SOS and is a potent allosteric modulator of its activity. A structure of the KRas•SOS complex was determined using cryogenic electron microscopy providing insight into the enhanced affinity of the mutant protein. In addition, we find that KRas-GTP can allosterically increase the nucleotide exchange rate of KRas at the active site more than twofold compared to KRas-GTP. Furthermore, small-molecule Ras•SOS disruptors fail to dissociate KRas•SOS complexes, underscoring the need for more potent disruptors. Taken together, a better understanding of the interaction between oncogenic Ras mutants and SOS will provide avenues for improved therapeutic interventions. 履歴 登録 2020年10月15日 - ヘッダ(付随情報) 公開 2021年3月31日 - マップ公開 2021年3月31日 - 更新 2024年3月6日 - 現状 2024年3月6日 処理サイト : RCSB / 状態 : 公開
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