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Open data
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Basic information
Entry | Database: PDB / ID: 9f45 | |||||||||
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Title | cryo-EM structure of human LST2 bound to human mTOR complex 1 | |||||||||
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![]() | SIGNALING PROTEIN / MTOR / MTORC1 / LST2 / ZFYVE28 / EGFR / TOS | |||||||||
Function / homology | ![]() negative regulation of epidermal growth factor-activated receptor activity / RNA polymerase III type 2 promoter sequence-specific DNA binding / RNA polymerase III type 1 promoter sequence-specific DNA binding / positive regulation of cytoplasmic translational initiation / T-helper 1 cell lineage commitment / positive regulation of pentose-phosphate shunt / regulation of locomotor rhythm / positive regulation of wound healing, spreading of epidermal cells / TORC2 signaling / TORC2 complex ...negative regulation of epidermal growth factor-activated receptor activity / RNA polymerase III type 2 promoter sequence-specific DNA binding / RNA polymerase III type 1 promoter sequence-specific DNA binding / positive regulation of cytoplasmic translational initiation / T-helper 1 cell lineage commitment / positive regulation of pentose-phosphate shunt / regulation of locomotor rhythm / positive regulation of wound healing, spreading of epidermal cells / TORC2 signaling / TORC2 complex / regulation of membrane permeability / cellular response to leucine starvation / heart valve morphogenesis / negative regulation of lysosome organization / TFIIIC-class transcription factor complex binding / TORC1 complex / positive regulation of transcription of nucleolar large rRNA by RNA polymerase I / calcineurin-NFAT signaling cascade / voluntary musculoskeletal movement / positive regulation of odontoblast differentiation / regulation of osteoclast differentiation / RNA polymerase III type 3 promoter sequence-specific DNA binding / positive regulation of keratinocyte migration / regulation of lysosome organization / Amino acids regulate mTORC1 / cellular response to L-leucine / MTOR signalling / cellular response to nutrient / regulation of autophagosome assembly / Energy dependent regulation of mTOR by LKB1-AMPK / TORC1 signaling / energy reserve metabolic process / ruffle organization / serine/threonine protein kinase complex / negative regulation of cell size / phosphatidylinositol-3-phosphate binding / cellular response to methionine / positive regulation of osteoclast differentiation / positive regulation of ubiquitin-dependent protein catabolic process / inositol hexakisphosphate binding / cellular response to osmotic stress / anoikis / protein serine/threonine kinase inhibitor activity / negative regulation of protein localization to nucleus / cardiac muscle cell development / negative regulation of calcineurin-NFAT signaling cascade / regulation of myelination / positive regulation of transcription by RNA polymerase III / positive regulation of peptidyl-threonine phosphorylation / positive regulation of actin filament polymerization / negative regulation of macroautophagy / regulation of cell size / Macroautophagy / positive regulation of myotube differentiation / Constitutive Signaling by AKT1 E17K in Cancer / negative regulation of epidermal growth factor receptor signaling pathway / social behavior / oligodendrocyte differentiation / germ cell development / behavioral response to pain / TOR signaling / mTORC1-mediated signalling / positive regulation of oligodendrocyte differentiation / positive regulation of translational initiation / protein kinase activator activity / CD28 dependent PI3K/Akt signaling / positive regulation of TOR signaling / response to amino acid / HSF1-dependent transactivation / positive regulation of G1/S transition of mitotic cell cycle / regulation of macroautophagy / enzyme-substrate adaptor activity / 'de novo' pyrimidine nucleobase biosynthetic process / cellular response to nutrient levels / vascular endothelial cell response to laminar fluid shear stress / neuronal action potential / positive regulation of lipid biosynthetic process / positive regulation of epithelial to mesenchymal transition / heart morphogenesis / regulation of cellular response to heat / positive regulation of lamellipodium assembly / cardiac muscle contraction / positive regulation of peptidyl-serine phosphorylation / phagocytic vesicle / positive regulation of stress fiber assembly / positive regulation of endothelial cell proliferation / T cell costimulation / 14-3-3 protein binding / cytoskeleton organization / endomembrane system / negative regulation of autophagy / cellular response to amino acid starvation / protein serine/threonine kinase activator activity / cellular response to starvation / positive regulation of glycolytic process / regulation of signal transduction by p53 class mediator / Regulation of PTEN gene transcription / post-embryonic development / positive regulation of translation / VEGFR2 mediated vascular permeability Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.74 Å | |||||||||
![]() | Craigie, L.M. / Maier, T. | |||||||||
Funding support | ![]()
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![]() | ![]() Title: 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. | |||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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PDBx/mmCIF format | ![]() | 1.3 MB | Display | ![]() |
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PDB format | ![]() | 1 MB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Summary document | ![]() | 1.1 MB | Display | ![]() |
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Full document | ![]() | 1.2 MB | Display | |
Data in XML | ![]() | 176.6 KB | Display | |
Data in CIF | ![]() | 271.3 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 50184MC ![]() 9f42C ![]() 9f43C ![]() 9f44C M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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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.) ![]() ![]() ![]() 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.) ![]() ![]() ![]() #3: Protein | Mass: 152764.656 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #4: Protein | Mass: 96604.477 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #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 / Type: COMPLEX / Entity ID: #1-#4 / Source: RECOMBINANT |
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Molecular weight | Experimental value: NO |
Source (natural) | Organism: ![]() |
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: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2500 nm / Nominal defocus min: 1000 nm |
Image recording | Electron dose: 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: 4719 |
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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: 1057805 | |||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | |||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.74 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 272762 / Symmetry type: POINT | |||||||||||||||||||||||||||
Atomic model building | PDB-ID: 7PEB Accession code: 7PEB / Source name: PDB / Type: experimental model | |||||||||||||||||||||||||||
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