+Open data
-Basic information
Entry | Database: PDB / ID: 7d10 | ||||||
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Title | Human NKCC1 | ||||||
Components | Solute carrier family 12 member 2 | ||||||
Keywords | MEMBRANE PROTEIN / transporter | ||||||
Function / homology | Function and homology information positive regulation of cell volume / positive regulation of aspartate secretion / transepithelial ammonium transport / regulation of matrix metallopeptidase secretion / metal ion transmembrane transporter activity / cell body membrane / inorganic anion import across plasma membrane / inorganic cation import across plasma membrane / chloride:monoatomic cation symporter activity / sodium:potassium:chloride symporter activity ...positive regulation of cell volume / positive regulation of aspartate secretion / transepithelial ammonium transport / regulation of matrix metallopeptidase secretion / metal ion transmembrane transporter activity / cell body membrane / inorganic anion import across plasma membrane / inorganic cation import across plasma membrane / chloride:monoatomic cation symporter activity / sodium:potassium:chloride symporter activity / transepithelial chloride transport / potassium ion transmembrane transporter activity / Cation-coupled Chloride cotransporters / sodium ion homeostasis / intracellular chloride ion homeostasis / negative regulation of vascular wound healing / ammonium transmembrane transport / chloride ion homeostasis / cellular response to potassium ion / cell projection membrane / ammonium channel activity / intracellular potassium ion homeostasis / potassium ion homeostasis / sodium ion import across plasma membrane / T cell chemotaxis / cellular response to chemokine / intracellular sodium ion homeostasis / hyperosmotic response / cell volume homeostasis / gamma-aminobutyric acid signaling pathway / regulation of spontaneous synaptic transmission / maintenance of blood-brain barrier / potassium ion import across plasma membrane / transport across blood-brain barrier / lateral plasma membrane / sodium ion transmembrane transport / monoatomic ion transport / basal plasma membrane / chloride transmembrane transport / cell projection / cell periphery / Hsp90 protein binding / cytoplasmic vesicle membrane / extracellular vesicle / protein-folding chaperone binding / basolateral plasma membrane / cell body / neuron projection / apical plasma membrane / neuronal cell body / protein kinase binding / extracellular exosome / membrane / plasma membrane Similarity search - Function | ||||||
Biological species | Homo sapiens (human) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.52 Å | ||||||
Authors | Zhang, S. / Yang, M. | ||||||
Citation | Journal: Commun Biol / Year: 2021 Title: The structural basis of function and regulation of neuronal cotransporters NKCC1 and KCC2. Authors: Sensen Zhang / Jun Zhou / Yuebin Zhang / Tianya Liu / Perrine Friedel / Wei Zhuo / Suma Somasekharan / Kasturi Roy / Laixing Zhang / Yang Liu / Xianbin Meng / Haiteng Deng / Wenwen Zeng / ...Authors: Sensen Zhang / Jun Zhou / Yuebin Zhang / Tianya Liu / Perrine Friedel / Wei Zhuo / Suma Somasekharan / Kasturi Roy / Laixing Zhang / Yang Liu / Xianbin Meng / Haiteng Deng / Wenwen Zeng / Guohui Li / Biff Forbush / Maojun Yang / Abstract: NKCC and KCC transporters mediate coupled transport of Na+K+Cl and K+Cl across the plasma membrane, thus regulating cell Cl concentration and cell volume and playing critical roles in transepithelial ...NKCC and KCC transporters mediate coupled transport of Na+K+Cl and K+Cl across the plasma membrane, thus regulating cell Cl concentration and cell volume and playing critical roles in transepithelial salt and water transport and in neuronal excitability. The function of these transporters has been intensively studied, but a mechanistic understanding has awaited structural studies of the transporters. Here, we present the cryo-electron microscopy (cryo-EM) structures of the two neuronal cation-chloride cotransporters human NKCC1 (SLC12A2) and mouse KCC2 (SLC12A5), along with computational analysis and functional characterization. These structures highlight essential residues in ion transport and allow us to propose mechanisms by which phosphorylation regulates transport activity. | ||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 7d10.cif.gz | 182.5 KB | Display | PDBx/mmCIF format |
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PDB format | pdb7d10.ent.gz | 125.9 KB | Display | PDB format |
PDBx/mmJSON format | 7d10.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 7d10_validation.pdf.gz | 923.9 KB | Display | wwPDB validaton report |
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Full document | 7d10_full_validation.pdf.gz | 865.4 KB | Display | |
Data in XML | 7d10_validation.xml.gz | 29.4 KB | Display | |
Data in CIF | 7d10_validation.cif.gz | 43.6 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/d1/7d10 ftp://data.pdbj.org/pub/pdb/validation_reports/d1/7d10 | HTTPS FTP |
-Related structure data
Related structure data | 30542MC 7d14C M: map data used to model this data C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
#1: Protein | Mass: 131583.422 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: SLC12A2, NKCC1 / Production host: Homo sapiens (human) / References: UniProt: P55011 #2: Chemical | ChemComp-PLM / Has ligand of interest | N | |
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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 |
-Sample preparation
Component | Name: human NKCC1 / Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT |
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Source (natural) | Organism: Homo sapiens (human) |
Source (recombinant) | Organism: Homo sapiens (human) |
Buffer solution | pH: 7.4 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
-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 K2 SUMMIT (4k x 4k) |
-Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3D reconstruction | Resolution: 3.52 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 80000 / Symmetry type: POINT |