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Basic information
| Entry | Database: PDB / ID: 7vpi | ||||||||||||
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| Title | Cryo-EM structure of the human ATP13A2 (E1-ATP state) | ||||||||||||
Components | Polyamine-transporting ATPase 13A2 | ||||||||||||
Keywords | MEMBRANE PROTEIN / ATP13A2 / PARK9 / P-type ATPase | ||||||||||||
| Function / homology | Function and homology informationpolyamine transmembrane transporter activity / polyamine transmembrane transport / spermine transmembrane transport / : / ABC-type polyamine transporter activity / regulation of autophagosome size / extracellular exosome biogenesis / regulation of chaperone-mediated autophagy / negative regulation of lysosomal protein catabolic process / P-type ion transporter activity ...polyamine transmembrane transporter activity / polyamine transmembrane transport / spermine transmembrane transport / : / ABC-type polyamine transporter activity / regulation of autophagosome size / extracellular exosome biogenesis / regulation of chaperone-mediated autophagy / negative regulation of lysosomal protein catabolic process / P-type ion transporter activity / regulation of autophagy of mitochondrion / regulation of lysosomal protein catabolic process / intracellular monoatomic cation homeostasis / autophagosome-lysosome fusion / autophagosome organization / protein localization to lysosome / positive regulation of exosomal secretion / phosphatidic acid binding / ATPase-coupled monoatomic cation transmembrane transporter activity / multivesicular body membrane / intracellular zinc ion homeostasis / cupric ion binding / regulation of protein localization to nucleus / regulation of mitochondrion organization / Translocases; Catalysing the translocation of other compounds; Linked to the hydrolysis of a nucleoside triphosphate / phosphatidylinositol-3,5-bisphosphate binding / lysosomal transport / regulation of intracellular protein transport / cellular response to zinc ion / lipid homeostasis / Ion transport by P-type ATPases / autophagosome membrane / regulation of macroautophagy / transport vesicle / regulation of neuron apoptotic process / cellular response to manganese ion / multivesicular body / lysosomal lumen / autophagosome / positive regulation of protein secretion / autophagy / intracellular calcium ion homeostasis / late endosome membrane / late endosome / manganese ion binding / cellular response to oxidative stress / monoatomic ion transmembrane transport / vesicle / intracellular iron ion homeostasis / lysosome / neuron projection / lysosomal membrane / neuronal cell body / positive regulation of gene expression / ATP hydrolysis activity / zinc ion binding / ATP binding / membrane Similarity search - Function | ||||||||||||
| Biological species | Homo sapiens (human) | ||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.6 Å | ||||||||||||
Authors | Tomita, A. / Yamashita, K. / Nishizawa, T. / Nureki, O. | ||||||||||||
| Funding support | Japan, 3items
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Citation | Journal: Mol Cell / Year: 2021Title: Cryo-EM reveals mechanistic insights into lipid-facilitated polyamine export by human ATP13A2. Authors: Atsuhiro Tomita / Takashi Daiho / Tsukasa Kusakizako / Keitaro Yamashita / Satoshi Ogasawara / Takeshi Murata / Tomohiro Nishizawa / Osamu Nureki / ![]() Abstract: The cytoplasmic polyamine maintains cellular homeostasis by chelating toxic metal cations, regulating transcriptional activity, and protecting DNA. ATP13A2 was identified as a lysosomal polyamine ...The cytoplasmic polyamine maintains cellular homeostasis by chelating toxic metal cations, regulating transcriptional activity, and protecting DNA. ATP13A2 was identified as a lysosomal polyamine exporter responsible for polyamine release into the cytosol, and its dysfunction is associated with Alzheimer's disease and other neural degradation diseases. ATP13A2 belongs to the P5 subfamily of the P-type ATPase family, but its mechanisms remain unknown. Here, we report the cryoelectron microscopy (cryo-EM) structures of human ATP13A2 under four different conditions, revealing the structural coupling between the polyamine binding and the dephosphorylation. Polyamine is bound at the luminal tunnel and recognized through numerous electrostatic and π-cation interactions, explaining its broad specificity. The unique N-terminal domain is anchored to the lipid membrane to stabilize the E2P conformation, thereby accelerating the E1P-to-E2P transition. These findings reveal the distinct mechanism of P5B ATPases, thereby paving the way for neuroprotective therapy by activating ATP13A2. | ||||||||||||
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Structure visualization
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| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 7vpi.cif.gz | 203.8 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb7vpi.ent.gz | 153.2 KB | Display | PDB format |
| PDBx/mmJSON format | 7vpi.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 7vpi_validation.pdf.gz | 1.1 MB | Display | wwPDB validaton report |
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| Full document | 7vpi_full_validation.pdf.gz | 1.1 MB | Display | |
| Data in XML | 7vpi_validation.xml.gz | 34.9 KB | Display | |
| Data in CIF | 7vpi_validation.cif.gz | 52.6 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/vp/7vpi ftp://data.pdbj.org/pub/pdb/validation_reports/vp/7vpi | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 32066MC ![]() 7vpjC ![]() 7vpkC ![]() 7vplC M: map data used to model this data C: citing same article ( |
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| Similar structure data | |
| EM raw data | EMPIAR-10975 (Title: Cryo-EM structure of the human ATP13A2 / Data size: 3.8 TBData #1: Unaligned movies for E1-ATP state [micrographs - multiframe] Data #2: Unaligned movies for E1P-ADP state [micrographs - multiframe] Data #3: Unaligned movies for SPM-bound E2P state [micrographs - multiframe] Data #4: Unaligned movies for SPM-bound E2Pi state [micrographs - multiframe]) |
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Links
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Assembly
| Deposited unit | ![]()
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Components
| #1: Protein | Mass: 129313.391 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: ATP13A2, PARK9 / Cell line (production host): HEK293SGNTI- / Production host: Homo sapiens (human)References: UniProt: Q9NQ11, Translocases; Catalysing the translocation of other compounds; Linked to the hydrolysis of a nucleoside triphosphate |
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| #2: Chemical | ChemComp-ACP / |
| #3: Chemical | ChemComp-MG / |
| Has ligand of interest | Y |
-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: ATP13A2 / Type: COMPLEX / Details: Human ATP13A2 in complex with AMPPCP / Entity ID: #1 / Source: RECOMBINANT |
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| Molecular weight | Experimental value: NO |
| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: Homo sapiens (human) / Cell: HEK293SGNTI- |
| Buffer solution | pH: 8 |
| Specimen | Conc.: 10 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Specimen support | Grid material: COPPER/RHODIUM / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3 |
| Vitrification | Cryogen name: ETHANE / Humidity: 100 % |
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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 |
| Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
| Software | Name: REFMAC / Version: 5.8.0267 / Classification: refinement | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| EM software |
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Symmetry | Point symmetry: C1 (asymmetric) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3.6 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 3114 / Algorithm: FOURIER SPACE / Symmetry type: POINT | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Atomic model building | Protocol: AB INITIO MODEL / Space: RECIPROCAL | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Refinement | Resolution: 3.6→3.6 Å / Cor.coef. Fo:Fc: 0.855 / SU B: 36.291 / SU ML: 0.557 / ESU R: 0.891 Stereochemistry target values: MAXIMUM LIKELIHOOD WITH PHASES Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
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| Solvent computation | Solvent model: PARAMETERS FOR MASK CACLULATION | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Displacement parameters | Biso mean: 179.388 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Refinement step | Cycle: 1 / Total: 7375 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Refine LS restraints |
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Homo sapiens (human)
Japan, 3items
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