タンパク質・ペプチド: Target of rapamycin complex subunit LST8MTOR
タンパク質・ペプチド: Regulatory-associated protein of mTOR
複合体: RagA/C
タンパク質・ペプチド: Ras-related GTP-binding protein A
タンパク質・ペプチド: Ras-related GTP-binding protein C
タンパク質・ペプチド: Proline-rich AKT1 substrate 1
リガンド: GUANOSINE-5'-TRIPHOSPHATEグアノシン三リン酸
リガンド: GUANOSINE-5'-DIPHOSPHATE
キーワード
small GTPases (低分子量GTPアーゼ) / mTORC1 activator / roadblock domain / GTPase domain (GTPアーゼ) / SIGNALING PROTEIN
機能・相同性
機能・相同性情報
Gtr1-Gtr2 GTPase complex / FNIP-folliculin RagC/D GAP / RNA polymerase III type 2 promoter sequence-specific DNA binding / positive regulation of cytoplasmic translational initiation / RNA polymerase III type 1 promoter sequence-specific DNA binding / positive regulation of pentose-phosphate shunt / T-helper 1 cell lineage commitment / regulation of locomotor rhythm / positive regulation of wound healing, spreading of epidermal cells / cellular response to leucine starvation ...Gtr1-Gtr2 GTPase complex / FNIP-folliculin RagC/D GAP / RNA polymerase III type 2 promoter sequence-specific DNA binding / positive regulation of cytoplasmic translational initiation / RNA polymerase III type 1 promoter sequence-specific DNA binding / positive regulation of pentose-phosphate shunt / T-helper 1 cell lineage commitment / regulation of locomotor rhythm / positive regulation of wound healing, spreading of epidermal cells / cellular response to leucine starvation / TORC2 complex / regulation of TORC1 signaling / regulation of membrane permeability / heart valve morphogenesis / TFIIIC-class transcription factor complex binding / negative regulation of lysosome organization / RNA polymerase III type 3 promoter sequence-specific DNA binding / TORC1 complex / positive regulation of transcription of nucleolar large rRNA by RNA polymerase I / calcineurin-NFAT signaling cascade / protein localization to lysosome / regulation of autophagosome assembly / nucleus localization / TORC1 signaling / voluntary musculoskeletal movement / positive regulation of odontoblast differentiation / regulation of osteoclast differentiation / regulation of TOR signaling / positive regulation of keratinocyte migration / cellular response to L-leucine / MTOR signalling / Amino acids regulate mTORC1 / cellular response to nutrient / energy reserve metabolic process / Energy dependent regulation of mTOR by LKB1-AMPK / ruffle organization / protein serine/threonine kinase inhibitor activity / negative regulation of cell size / positive regulation of osteoclast differentiation / cellular response to osmotic stress / protein localization to membrane / enzyme-substrate adaptor activity / anoikis / negative regulation of protein localization to nucleus / cardiac muscle cell development / negative regulation of TOR signaling / positive regulation of transcription by RNA polymerase III / AKT phosphorylates targets in the cytosol / negative regulation of calcineurin-NFAT signaling cascade / regulation of myelination / regulation of cell size / negative regulation of macroautophagy / オートファジー / small GTPase-mediated signal transduction / positive regulation of oligodendrocyte differentiation / lysosome organization / positive regulation of actin filament polymerization / protein kinase inhibitor activity / positive regulation of myotube differentiation / protein kinase activator activity / behavioral response to pain / oligodendrocyte differentiation / mTORC1-mediated signalling / Constitutive Signaling by AKT1 E17K in Cancer / germ cell development / social behavior / CD28 dependent PI3K/Akt signaling / positive regulation of phosphoprotein phosphatase activity / neurotrophin TRK receptor signaling pathway / cellular response to nutrient levels / HSF1-dependent transactivation / MTOR / positive regulation of TOR signaling / neuronal action potential / regulation of macroautophagy / positive regulation of G1/S transition of mitotic cell cycle / positive regulation of translational initiation / 細胞内膜系 / response to amino acid / 'de novo' pyrimidine nucleobase biosynthetic process / positive regulation of lamellipodium assembly / positive regulation of epithelial to mesenchymal transition / regulation of neuron apoptotic process / positive regulation of lipid biosynthetic process / regulation of cellular response to heat / heart morphogenesis / protein-membrane adaptor activity / cardiac muscle contraction / phagocytic vesicle / positive regulation of stress fiber assembly / negative regulation of TORC1 signaling / 14-3-3 protein binding / positive regulation of endothelial cell proliferation / positive regulation of TORC1 signaling / cytoskeleton organization / tumor necrosis factor-mediated signaling pathway / T cell costimulation / cellular response to amino acid starvation / cellular response to starvation / positive regulation of glycolytic process 類似検索 - 分子機能
Proline-rich AKT1 substrate 1 protein / Proline-rich AKT1 substrate 1 / Raptor, N-terminal CASPase-like domain / Raptor N-terminal CASPase like domain / Raptor N-terminal CASPase like domain / Regulatory associated protein of TOR / RagA/B / Gtr1/RagA G protein / RagC/D / Gtr1/RagA G protein conserved region ...Proline-rich AKT1 substrate 1 protein / Proline-rich AKT1 substrate 1 / Raptor, N-terminal CASPase-like domain / Raptor N-terminal CASPase like domain / Raptor N-terminal CASPase like domain / Regulatory associated protein of TOR / RagA/B / Gtr1/RagA G protein / RagC/D / Gtr1/RagA G protein conserved region / Target of rapamycin complex subunit LST8 / Domain of unknown function DUF3385, target of rapamycin protein / Serine/threonine-protein kinase mTOR domain / Domain of unknown function / FKBP12-rapamycin binding domain / Serine/threonine-protein kinase TOR / FKBP12-rapamycin binding domain superfamily / FKBP12-rapamycin binding domain / HEATリピート / HEATリピート / Rapamycin binding domain / PIK-related kinase, FAT / FAT domain / FATC domain / FATC / FATC domain / PIK-related kinase / FAT domain profile. / FATC domain profile. / Quinoprotein alcohol dehydrogenase-like superfamily / Phosphatidylinositol 3- and 4-kinases signature 1. / Phosphatidylinositol 3/4-kinase, conserved site / Phosphatidylinositol 3- and 4-kinases signature 2. / Phosphatidylinositol 3-/4-kinase, catalytic domain superfamily / Phosphoinositide 3-kinase, catalytic domain / Phosphatidylinositol 3- and 4-kinase / Phosphatidylinositol 3- and 4-kinases catalytic domain profile. / Phosphatidylinositol 3-/4-kinase, catalytic domain / Armadillo-like helical / Tetratricopeptide-like helical domain superfamily / Armadillo-type fold / G-protein beta WD-40 repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD domain, G-beta repeat / WD40リピート / WD40リピート / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily / Protein kinase-like domain superfamily / P-loop containing nucleoside triphosphate hydrolase 類似検索 - ドメイン・相同性
Serine/threonine-protein kinase mTOR / Ras-related GTP-binding protein A / Regulatory-associated protein of mTOR / Proline-rich AKT1 substrate 1 / Target of rapamycin complex subunit LST8 / Ras-related GTP-binding protein C 類似検索 - 構成要素
ジャーナル: Science / 年: 2019 タイトル: Architecture of human Rag GTPase heterodimers and their complex with mTORC1. 著者: Madhanagopal Anandapadamanaban / Glenn R Masson / Olga Perisic / Alex Berndt / Jonathan Kaufman / Chris M Johnson / Balaji Santhanam / Kacper B Rogala / David M Sabatini / Roger L Williams / 要旨: The Rag guanosine triphosphatases (GTPases) recruit the master kinase mTORC1 to lysosomes to regulate cell growth and proliferation in response to amino acid availability. The nucleotide state of Rag ...The Rag guanosine triphosphatases (GTPases) recruit the master kinase mTORC1 to lysosomes to regulate cell growth and proliferation in response to amino acid availability. The nucleotide state of Rag heterodimers is critical for their association with mTORC1. Our cryo-electron microscopy structure of RagA/RagC in complex with mTORC1 shows the details of RagA/RagC binding to the RAPTOR subunit of mTORC1 and explains why only the RagA/RagC nucleotide state binds mTORC1. Previous kinetic studies suggested that GTP binding to one Rag locks the heterodimer to prevent GTP binding to the other. Our crystal structures and dynamics of RagA/RagC show the mechanism for this locking and explain how oncogenic hotspot mutations disrupt this process. In contrast to allosteric activation by RHEB, Rag heterodimer binding does not change mTORC1 conformation and activates mTORC1 by targeting it to lysosomes.
凍結剤: ETHANE / チャンバー内湿度: 95 % / 装置: FEI VITROBOT MARK III
詳細
mTORC1 (mTOR complex 1) is a dimer consists of three proteins: mTOR, mLST8 and RAPTOR. The interacting partner, PRAS40-fused-RagA/C (referred as RagA/C here) forms complex with mTORC1 for its activation. We solved the cryo-EM structure of mTORC1 bound to RagA/C.
詳細: For building the mTORC1 structure we used the previously published apo-mTORC1 structure 6BCX, and for RagA/C structure we used our high-resolution crystal structure PDB ID 6S6A.
初期 角度割当
タイプ: MAXIMUM LIKELIHOOD / ソフトウェア - 名称: RELION (ver. 3.0.6)
最終 角度割当
タイプ: MAXIMUM LIKELIHOOD / ソフトウェア - 名称: RELION (ver. 3.0.6)
最終 再構成
使用したクラス数: 1 / 想定した対称性 - 点群: C1 (非対称) / アルゴリズム: FOURIER SPACE / 解像度のタイプ: BY AUTHOR / 解像度: 5.5 Å / 解像度の算出法: FSC 0.143 CUT-OFF / ソフトウェア - 名称: RELION (ver. 3.0.6) 詳細: For the final reconstruction of mTORC1-RagA/C structure we used a strategy taking advantage of the relion particle symmetry expand program, and duplicated the C2-refined particles and applied ...詳細: For the final reconstruction of mTORC1-RagA/C structure we used a strategy taking advantage of the relion particle symmetry expand program, and duplicated the C2-refined particles and applied the appropriate rotation and translation to generate a set of monomers. We performed mTORC1-RagA/C 'pseudo-monomer' focussed classification with signal subtraction and obtained a reconstruction of 5.5 A resolution map. This cryo-EM density corresponded to the mTORC1-RagA/C pseudomonomer, where the previously published structure for apo-mTORC1 (PDB ID 6BCX) and our high-resolution crystal structure of RagA/C (6S6A) were fitted with great confidence from our experimental analysis including Pulldown assays, mutational at per-residue level in the binding interface and HDX-Mass Spectrometry. 使用した粒子像数: 90809
詳細
The selected images were processed using MotionCor2 within the RELION-3.0.6 package.
source_name: PDB, initial_model_type: experimental model
詳細
Cryo-EM model of mTORC1-RagA/C was refined using REFMAC5 program in CCPEM package, with a composite map of the 3D reconstruction of mTORC1-RagA/C pseudo-monomer (as mentioned in Reconstruction section) of one protomer together with the generated map for the other second protomer of mTORC1-RagA/C. This second protomer of mTORC1-RagA/C map was generated by simply aligning the first 3D reconstructed pseudomonomer map onto the mTORC1 dimer consensus C2 map and then obtained the rotation-translation matrix with CHIMERA and then used Maputils program in CCP4i. From the resulting mTORC1-RagA/C dimer map, the model of mTORC1-RagA/C was built by using previously published structure of apo-mTORC1 (PDB ID 6BCX) and our crystal structure of RagA/C was fitted (PDB ID 6S6A, unreleased). The entire mTORC1-RagA/C final model was refined using REFMAC5 program using the restraints from the crystal structure of RagA/C and previously published mTORC1 structure. Side chains were removed before refinement, since these were not evident in the cryo-EM densities. Separate model refinements were performed against single half-maps, and the resulting models were compared with the other half-maps to confirm the absence of overfitting.
精密化
空間: REAL / プロトコル: RIGID BODY FIT / 温度因子: 283
得られたモデル
PDB-6sb0: cryo-EM structure of mTORC1 bound to PRAS40-fused active RagA/C GTPases