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Open data
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Basic information
Entry | Database: PDB / ID: 6a69 | ||||||
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Title | Cryo-EM structure of a P-type ATPase | ||||||
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![]() | STRUCTURAL PROTEIN / Membrane protein | ||||||
Function / homology | ![]() calcium ion export across plasma membrane / regulation of receptor localization to synapse / calcium ion transmembrane transporter activity / type 1 fibroblast growth factor receptor binding / regulation of vascular associated smooth muscle contraction / excitatory synapse assembly / dendrite self-avoidance / cell-cell adhesion mediator activity / positive regulation of fibroblast growth factor receptor signaling pathway / positive regulation of long-term neuronal synaptic plasticity ...calcium ion export across plasma membrane / regulation of receptor localization to synapse / calcium ion transmembrane transporter activity / type 1 fibroblast growth factor receptor binding / regulation of vascular associated smooth muscle contraction / excitatory synapse assembly / dendrite self-avoidance / cell-cell adhesion mediator activity / positive regulation of fibroblast growth factor receptor signaling pathway / positive regulation of long-term neuronal synaptic plasticity / photoreceptor ribbon synapse / P-type Ca2+ transporter / P-type calcium transporter activity / GABA receptor activation / positive regulation of calcium ion transport / Sensory processing of sound by inner hair cells of the cochlea / Reduction of cytosolic Ca++ levels / negative regulation of cytokine production / negative regulation of cytosolic calcium ion concentration / molecular function inhibitor activity / homophilic cell adhesion via plasma membrane adhesion molecules / Ion transport by P-type ATPases / immunological synapse / regulation of cardiac conduction / regulation of cytosolic calcium ion concentration / positive regulation of bone mineralization / Ion homeostasis / cell adhesion molecule binding / regulation of cellular response to insulin stimulus / axon guidance / cell projection / positive regulation of neuron projection development / regulation of blood pressure / long-term synaptic potentiation / intracellular calcium ion homeostasis / synaptic vesicle membrane / positive regulation of protein phosphorylation / presynaptic membrane / positive regulation of cytosolic calcium ion concentration / monoatomic ion transmembrane transport / basolateral plasma membrane / calmodulin binding / postsynaptic density / axon / intracellular membrane-bounded organelle / glutamatergic synapse / cell surface / ATP hydrolysis activity / extracellular exosome / nucleoplasm / ATP binding / metal ion binding / membrane / plasma membrane Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.11 Å | ||||||
![]() | Gong, D.S. / Chi, X.M. / Ren, K. / Huang, G.X.Y. / Zhou, G.W. / Yan, N. / Lei, J.L. / Zhou, Q. | ||||||
![]() | ![]() Title: Structure of the human plasma membrane Ca-ATPase 1 in complex with its obligatory subunit neuroplastin. Authors: Deshun Gong / Ximin Chi / Kang Ren / Gaoxingyu Huang / Gewei Zhou / Nieng Yan / Jianlin Lei / Qiang Zhou / ![]() ![]() Abstract: Plasma membrane Ca-ATPases (PMCAs) are key regulators of global Ca homeostasis and local intracellular Ca dynamics. Recently, Neuroplastin (NPTN) and basigin were identified as previously ...Plasma membrane Ca-ATPases (PMCAs) are key regulators of global Ca homeostasis and local intracellular Ca dynamics. Recently, Neuroplastin (NPTN) and basigin were identified as previously unrecognized obligatory subunits of PMCAs that dramatically increase the efficiency of PMCA-mediated Ca clearance. Here, we report the cryo-EM structure of human PMCA1 (hPMCA1) in complex with NPTN at a resolution of 4.1 Å for the overall structure and 3.9 Å for the transmembrane domain. The single transmembrane helix of NPTN interacts with the TM-linker and TM10 of hPMCA1. The subunits are required for the hPMCA1 functional activity. The NPTN-bound hPMCA1 closely resembles the E1-Mg structure of endo(sarco)plasmic reticulum Ca ATPase and the Ca site is exposed through a large open cytoplasmic pathway. This structure provides insight into how the subunits bind to the PMCAs and serves as an important basis for understanding the functional mechanisms of this essential calcium pump family. | ||||||
History |
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Structure visualization
Movie |
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 200 KB | Display | ![]() |
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PDB format | ![]() | 149.3 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 6987MC M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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1 |
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Components
#1: Protein | Mass: 140987.844 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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#2: Protein | Mass: 31328.400 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#3: Sugar | ChemComp-NAG / |
Has protein modification | Y |
Sequence details | THIS SEQUENCE OF NPTN CORRESPOND |
-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: complex of one PMCA1 molecular with one NPTN molecular Type: COMPLEX / Entity ID: #1-#2 / Source: RECOMBINANT |
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Source (natural) | Organism: ![]() |
Source (recombinant) | Organism: ![]() |
Buffer solution | pH: 8 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
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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 |
Image recording | Electron dose: 48 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
Software | Name: PHENIX / Version: 1.12_2829: / 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: 4.11 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 105188 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||
Refinement | Highest resolution: 4.11 Å | ||||||||||||||||||||||||||||||||||||||||
Refine LS restraints |
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