- EMDB-32067: Cryo-EM structure of the human ATP13A2 (E1P-ADP state) -
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Basic information
Entry
Database: EMDB / ID: EMD-32067
Title
Cryo-EM structure of the human ATP13A2 (E1P-ADP state)
Map data
postprocess_masked.mrc from Relion
Sample
Complex: ATP13A2
Protein or peptide: Polyamine-transporting ATPase 13A2
Ligand: MAGNESIUM ION
Ligand: ADENOSINE-5'-DIPHOSPHATE
Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
Ligand: TETRAFLUOROALUMINATE ION
Keywords
ATP13A2 / PARK9 / P-type ATPase / MEMBRANE PROTEIN
Function / homology
Function and homology information
polyamine transmembrane transporter activity / polyamine transmembrane transport / spermine transmembrane transport / peptidyl-aspartic acid autophosphorylation / : / ABC-type polyamine transporter activity / regulation of autophagosome size / extracellular exosome biogenesis / regulation of chaperone-mediated autophagy / negative regulation of lysosomal protein catabolic process ...polyamine transmembrane transporter activity / polyamine transmembrane transport / spermine transmembrane transport / peptidyl-aspartic acid autophosphorylation / : / 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 / protein localization to lysosome / autophagosome organization / phosphatidic acid binding / positive regulation of exosomal secretion / ATPase-coupled monoatomic cation transmembrane transporter activity / multivesicular body membrane / regulation of protein localization to nucleus / intracellular zinc ion homeostasis / cupric ion binding / phosphatidylinositol-3,5-bisphosphate binding / regulation of mitochondrion organization / Translocases; Catalysing the translocation of other compounds; Linked to the hydrolysis of a nucleoside triphosphate / regulation of endopeptidase activity / cellular response to zinc ion / lysosomal transport / regulation of intracellular protein transport / lipid homeostasis / Ion transport by P-type ATPases / autophagosome membrane / cellular response to manganese ion / regulation of macroautophagy / transport vesicle / regulation of neuron apoptotic process / multivesicular body / autophagosome / lysosomal lumen / positive regulation of protein secretion / autophagy / transmembrane transport / intracellular calcium ion homeostasis / late endosome membrane / late endosome / manganese ion binding / cellular response to oxidative stress / protein autophosphorylation / 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
Japan Agency for Medical Research and Development (AMED)
JP19am01011115
Japan
Citation
Journal: Mol Cell / Year: 2021 Title: 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.
History
Deposition
Oct 17, 2021
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Header (metadata) release
Dec 29, 2021
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Map release
Dec 29, 2021
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Update
Oct 30, 2024
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Current status
Oct 30, 2024
Processing site: PDBj / Status: Released
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Structure visualization
Movie
Surface view with section colored by density value
EMPIAR-10975 (Title: Cryo-EM structure of the human ATP13A2 / Data size: 3.8 TB Data #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])
Name: Polyamine-transporting ATPase 13A2 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO EC number: Translocases; Catalysing the translocation of other compounds; Linked to the hydrolysis of a nucleoside triphosphate
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