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Yorodumi- PDB-9f44: cryo-EM structure of LST2 TOS peptide bound to human mTOR complex 1 -
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Open data
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Basic information
| Entry | Database: PDB / ID: 9f44 | |||||||||
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| Title | cryo-EM structure of LST2 TOS peptide bound to human mTOR complex 1 | |||||||||
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Keywords | SIGNALING PROTEIN / MTOR / MTORC1 / LST2 / ZFYVE28 / EGFR / TOS | |||||||||
| Function / homology | Function and homology informationnegative regulation of epidermal growth factor-activated receptor activity / cardiac cell development / positive regulation of SCF-dependent proteasomal ubiquitin-dependent catabolic process / RNA polymerase III type 2 promoter sequence-specific DNA binding / T-helper 1 cell lineage commitment / RNA polymerase III type 1 promoter sequence-specific DNA binding / positive regulation of cytoplasmic translational initiation / regulation of locomotor rhythm / positive regulation of pentose-phosphate shunt / positive regulation of wound healing, spreading of epidermal cells ...negative regulation of epidermal growth factor-activated receptor activity / cardiac cell development / positive regulation of SCF-dependent proteasomal ubiquitin-dependent catabolic process / RNA polymerase III type 2 promoter sequence-specific DNA binding / T-helper 1 cell lineage commitment / RNA polymerase III type 1 promoter sequence-specific DNA binding / positive regulation of cytoplasmic translational initiation / regulation of locomotor rhythm / positive regulation of pentose-phosphate shunt / positive regulation of wound healing, spreading of epidermal cells / TORC2 complex / cellular response to leucine starvation / TFIIIC-class transcription factor complex binding / positive regulation of odontoblast differentiation / regulation of lysosome organization / TORC1 complex / negative regulation of lysosome organization / regulation of osteoclast differentiation / RNA polymerase III type 3 promoter sequence-specific DNA binding / positive regulation of keratinocyte migration / positive regulation of transcription of nucleolar large rRNA by RNA polymerase I / MTOR signalling / cellular response to L-leucine / Energy dependent regulation of mTOR by LKB1-AMPK / cellular response to nutrient / regulation of autophagosome assembly / Amino acids regulate mTORC1 / phosphatidylinositol-3-phosphate binding / Dengue virus modulates apoptosis / cellular response to methionine / positive regulation of osteoclast differentiation / TORC2 signaling / cellular response to osmotic stress / anoikis / inositol hexakisphosphate binding / negative regulation of protein localization to nucleus / positive regulation of ubiquitin-dependent protein catabolic process / negative regulation of macroautophagy / regulation of cell size / Macroautophagy / Constitutive Signaling by AKT1 E17K in Cancer / TORC1 signaling / positive regulation of transcription by RNA polymerase III / positive regulation of protein kinase activity / behavioral response to pain / negative regulation of epidermal growth factor receptor signaling pathway / social behavior / response to amino acid / TOR signaling / mTORC1-mediated signalling / CD28 dependent PI3K/Akt signaling / HSF1-dependent transactivation / positive regulation of TOR signaling / positive regulation of translational initiation / positive regulation of lipid biosynthetic process / protein kinase activator activity / enzyme-substrate adaptor activity / protein serine/threonine kinase inhibitor activity / positive regulation of epithelial to mesenchymal transition / T cell costimulation / positive regulation of G1/S transition of mitotic cell cycle / neuronal action potential / vascular endothelial cell response to laminar fluid shear stress / regulation of cellular response to heat / regulation of macroautophagy / 'de novo' pyrimidine nucleobase biosynthetic process / cytoskeleton organization / phagocytic vesicle / positive regulation of endothelial cell proliferation / negative regulation of insulin receptor signaling pathway / 14-3-3 protein binding / endomembrane system / cellular response to nutrient levels / positive regulation of glycolytic process / negative regulation of autophagy / regulation of signal transduction by p53 class mediator / cellular response to amino acid starvation / cellular response to starvation / Regulation of PTEN gene transcription / cellular response to amino acid stimulus / regulation of autophagy / VEGFR2 mediated vascular permeability / protein serine/threonine kinase activator activity / phosphatidylinositol 3-kinase/protein kinase B signal transduction / regulation of actin cytoskeleton organization / positive regulation of translation / TP53 Regulates Metabolic Genes / non-specific protein-tyrosine kinase / cellular response to glucose stimulus / regulation of cell growth / non-membrane spanning protein tyrosine kinase activity / phosphoprotein binding / response to nutrient levels / PML body / regulation of circadian rhythm / small GTPase binding / cytoplasmic stress granule / cellular response to insulin stimulus / Regulation of TP53 Degradation / PIP3 activates AKT signaling Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) | |||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.68 Å | |||||||||
Authors | Craigie, L.M. / Maier, T. | |||||||||
| Funding support | Switzerland, European Union, 2items
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Citation | Journal: Proc Natl Acad Sci U S A / Year: 2024Title: mTORC1 phosphorylates and stabilizes LST2 to negatively regulate EGFR. Authors: Stefania Battaglioni / Louise-Marie Craigie / Sofia Filippini / Timm Maier / Michael N Hall / ![]() Abstract: TORC1 (target of rapamycin complex 1) is a highly conserved protein kinase that plays a central role in regulating cell growth. Given the role of mammalian TORC1 (mTORC1) in metabolism and disease, ...TORC1 (target of rapamycin complex 1) is a highly conserved protein kinase that plays a central role in regulating cell growth. Given the role of mammalian TORC1 (mTORC1) in metabolism and disease, understanding mTORC1 downstream signaling and feedback loops is important. mTORC1 recognizes some of its substrates via a five amino acid binding sequence called the TOR signaling (TOS) motif. mTORC1 binding to a TOS motif facilitates phosphorylation of a distinct, distal site. Here, we show that LST2, also known as ZFYVE28, contains a TOS motif (amino acids 401 to 405) and is directly phosphorylated by mTORC1 at serine 670 (S670). mTORC1-mediated S670 phosphorylation promotes LST2 monoubiquitination on lysine 87 (K87). Monoubiquitinated LST2 is stable and displays a broad reticular distribution. When mTORC1 is inactive, unphosphorylated LST2 is degraded by the proteasome. The absence of LST2 enhances EGFR (epidermal growth factor receptor) signaling. We propose that mTORC1 negatively feeds back on its upstream receptor EGFR via LST2. | |||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 9f44.cif.gz | 1.2 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb9f44.ent.gz | 1019.8 KB | Display | PDB format |
| PDBx/mmJSON format | 9f44.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/f4/9f44 ftp://data.pdbj.org/pub/pdb/validation_reports/f4/9f44 | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 50183MC ![]() 9f42C ![]() 9f43C ![]() 9f45C M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
| #1: Protein | Mass: 289257.969 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: MTOR, FRAP, FRAP1, FRAP2, RAFT1, RAPT1 / Production host: ![]() References: UniProt: P42345, non-specific serine/threonine protein kinase #2: Protein | Mass: 35910.090 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: MLST8, GBL, LST8 / Production host: ![]() #3: Protein | Mass: 152764.656 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: RPTOR, KIAA1303, RAPTOR / Production host: ![]() #4: Protein/peptide | Mass: 1660.733 Da / Num. of mol.: 2 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) / References: UniProt: Q9HCC9#5: Chemical | Has ligand of interest | Y | |
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-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
| Component | Name: mTORC1 in complex with LST2 TOS peptide / Type: COMPLEX / Entity ID: #1-#4 / Source: RECOMBINANT |
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| Molecular weight | Experimental value: NO |
| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: ![]() |
| Buffer solution | pH: 8 |
| Specimen | Conc.: 1 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Specimen support | Grid material: GOLD / Grid mesh size: 200 divisions/in. / Grid type: Quantifoil R2/1 |
| Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 95 % / Chamber temperature: 281 K |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2500 nm / Nominal defocus min: 1000 nm |
| Image recording | Electron dose: 48.43 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 4470 |
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Processing
| EM software |
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| Particle selection | Num. of particles selected: 2126474 | ||||||||||||||||||||||||
| Symmetry | Point symmetry: C2 (2 fold cyclic) | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3.68 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 782845 / Symmetry type: POINT | ||||||||||||||||||||||||
| Atomic model building | PDB-ID: 7PEB Accession code: 7PEB / Source name: PDB / Type: experimental model | ||||||||||||||||||||||||
| Refine LS restraints |
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About Yorodumi



Homo sapiens (human)
Switzerland, European Union, 2items
Citation









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FIELD EMISSION GUN
