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Open data
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Basic information
Entry | ![]() | |||||||||
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Title | GATOR1-RAG-RAGULATOR - GAP Complex | |||||||||
![]() | GATOR1-RAG-RAGULATOR - GAP Complex | |||||||||
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Function / homology | ![]() GATOR1 complex / regulation of cholesterol import / positive regulation of protein localization to lysosome / regulation of cell-substrate junction organization / Gtr1-Gtr2 GTPase complex / regulation of cholesterol efflux / positive regulation of RNA polymerase II regulatory region sequence-specific DNA binding / FNIP-folliculin RagC/D GAP / Ragulator complex / aorta morphogenesis ...GATOR1 complex / regulation of cholesterol import / positive regulation of protein localization to lysosome / regulation of cell-substrate junction organization / Gtr1-Gtr2 GTPase complex / regulation of cholesterol efflux / positive regulation of RNA polymerase II regulatory region sequence-specific DNA binding / FNIP-folliculin RagC/D GAP / Ragulator complex / aorta morphogenesis / protein localization to cell junction / regulation of TORC1 signaling / protein localization to lysosome / TORC1 signaling / regulation of TOR signaling / endosome organization / fibroblast migration / MTOR signalling / Amino acids regulate mTORC1 / lysosome localization / Energy dependent regulation of mTOR by LKB1-AMPK / protein localization to membrane / kinase activator activity / cardiac muscle tissue development / enzyme-substrate adaptor activity / negative regulation of TOR signaling / vacuolar membrane / ventricular septum development / endosomal transport / azurophil granule membrane / regulation of cell size / negative regulation of kinase activity / small GTPase-mediated signal transduction / Macroautophagy / lysosome organization / roof of mouth development / RHOJ GTPase cycle / RHOQ GTPase cycle / mTORC1-mediated signalling / tertiary granule membrane / CDC42 GTPase cycle / RHOH GTPase cycle / ficolin-1-rich granule membrane / RHOG GTPase cycle / regulation of receptor recycling / positive regulation of TOR signaling / RAC2 GTPase cycle / RAC3 GTPase cycle / response to amino acid / cellular response to nutrient levels / positive regulation of autophagy / specific granule membrane / protein-membrane adaptor activity / negative regulation of TORC1 signaling / positive regulation of TORC1 signaling / tumor necrosis factor-mediated signaling pathway / RAC1 GTPase cycle / cellular response to starvation / cellular response to amino acid starvation / negative regulation of autophagy / GTPase activator activity / viral genome replication / RNA splicing / negative regulation of cysteine-type endopeptidase activity involved in apoptotic process / guanyl-nucleotide exchange factor activity / Regulation of PTEN gene transcription / cholesterol homeostasis / positive regulation of interleukin-8 production / regulation of cell growth / TP53 Regulates Metabolic Genes / phosphoprotein binding / cellular response to amino acid stimulus / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / MAP2K and MAPK activation / response to virus / small GTPase binding / positive regulation of protein localization to nucleus / GDP binding / protein localization / late endosome / E3 ubiquitin ligases ubiquitinate target proteins / GTPase binding / late endosome membrane / glucose homeostasis / positive regulation of NF-kappaB transcription factor activity / positive regulation of canonical NF-kappaB signal transduction / positive regulation of MAPK cascade / molecular adaptor activity / lysosome / endosome membrane / intracellular signal transduction / protein heterodimerization activity / membrane raft / lysosomal membrane / intracellular membrane-bounded organelle / focal adhesion / GTPase activity / DNA-templated transcription / ubiquitin protein ligase binding / Neutrophil degranulation Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.9 Å | |||||||||
![]() | Egri SB / Shen K | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Cryo-EM structures of the human GATOR1-Rag-Ragulator complex reveal a spatial-constraint regulated GAP mechanism. Authors: Shawn B Egri / Christna Ouch / Hui-Ting Chou / Zhiheng Yu / Kangkang Song / Chen Xu / Kuang Shen / ![]() Abstract: mTORC1 controls cellular metabolic processes in response to nutrient availability. Amino acid signals are transmitted to mTORC1 through the Rag GTPases, which are localized on the lysosomal surface ...mTORC1 controls cellular metabolic processes in response to nutrient availability. Amino acid signals are transmitted to mTORC1 through the Rag GTPases, which are localized on the lysosomal surface by the Ragulator complex. The Rag GTPases receive amino acid signals from multiple upstream regulators. One negative regulator, GATOR1, is a GTPase activating protein (GAP) for RagA. GATOR1 binds to the Rag GTPases via two modes: an inhibitory mode and a GAP mode. How these two binding interactions coordinate to process amino acid signals is unknown. Here, we resolved three cryo-EM structural models of the GATOR1-Rag-Ragulator complex, with the Rag-Ragulator subcomplex occupying the inhibitory site, the GAP site, and both binding sites simultaneously. When the Rag GTPases bind to GATOR1 at the GAP site, both Rag subunits contact GATOR1 to coordinate their nucleotide loading states. These results reveal a potential GAP mechanism of GATOR1 during the mTORC1 inactivation process. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 197.3 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 21.9 KB 21.9 KB | Display Display | ![]() |
Images | ![]() | 72.3 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7t3bMC ![]() 7t3aC ![]() 7t3cC M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Annotation | GATOR1-RAG-RAGULATOR - GAP Complex | ||||||||||||||||||||
Voxel size | X=Y=Z: 0.83 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
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Sample components
+Entire : GATOR1-RAG-RAGULATOR - GAP Complex
+Supramolecule #1: GATOR1-RAG-RAGULATOR - GAP Complex
+Macromolecule #1: Ras-related GTP-binding protein C
+Macromolecule #2: GATOR complex protein NPRL2
+Macromolecule #3: GATOR complex protein DEPDC5
+Macromolecule #4: Ragulator complex protein LAMTOR3
+Macromolecule #5: Ragulator complex protein LAMTOR2
+Macromolecule #6: Ragulator complex protein LAMTOR5
+Macromolecule #7: Ragulator complex protein LAMTOR4
+Macromolecule #8: Ragulator complex protein LAMTOR1
+Macromolecule #9: GATOR complex protein NPRL3
+Macromolecule #10: Ras-related GTP-binding protein A
+Macromolecule #11: GUANOSINE-5'-DIPHOSPHATE
+Macromolecule #12: ALUMINUM FLUORIDE
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.4 |
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Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 54.2 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.9 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 139231 |
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Initial angle assignment | Type: NOT APPLICABLE |
Final angle assignment | Type: NOT APPLICABLE |