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Open data
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Basic information
Entry | Database: PDB / ID: 7d14 | ||||||
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Title | Mouse KCC2 | ||||||
![]() | Solute carrier family 12 member 5 | ||||||
![]() | MEMBRANE PROTEIN / transporter | ||||||
Function / homology | ![]() Cation-coupled Chloride cotransporters / ammonium transmembrane transport => GO:0072488 / thermosensory behavior / intracellular pH reduction / potassium:chloride symporter activity / hypotonic response / intracellular chloride ion homeostasis / response to xenobiotic stimulus => GO:0009410 / chloride ion homeostasis / intracellular monoatomic ion homeostasis ...Cation-coupled Chloride cotransporters / ammonium transmembrane transport => GO:0072488 / thermosensory behavior / intracellular pH reduction / potassium:chloride symporter activity / hypotonic response / intracellular chloride ion homeostasis / response to xenobiotic stimulus => GO:0009410 / chloride ion homeostasis / intracellular monoatomic ion homeostasis / dendritic spine development / ammonium channel activity / potassium ion homeostasis / cell volume homeostasis / chloride transport / chloride transmembrane transporter activity / plasma membrane => GO:0005886 / potassium ion import across plasma membrane / monoatomic ion transport / chloride transmembrane transport / dendrite membrane / dendritic shaft / learning / cell periphery / potassium ion transport / multicellular organism growth / chemical synaptic transmission / perikaryon / membrane => GO:0016020 / neuron projection / neuronal cell body / synapse / protein kinase binding / plasma membrane Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.8 Å | ||||||
![]() | Zhang, S. / Yang, M. | ||||||
![]() | ![]() 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. | ||||||
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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PDBx/mmCIF format | ![]() | 285.3 KB | Display | ![]() |
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PDB format | ![]() | 216.4 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Summary document | ![]() | 723.8 KB | Display | ![]() |
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Full document | ![]() | 735.4 KB | Display | |
Data in XML | ![]() | 46.4 KB | Display | |
Data in CIF | ![]() | 70.6 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 30543MC ![]() 7d10C M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Assembly
Deposited unit | ![]()
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Components
#1: Protein | Mass: 126402.328 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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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: mouse KCC2 / Type: ORGANELLE OR CELLULAR COMPONENT / Entity ID: all / Source: RECOMBINANT |
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Source (natural) | Organism: ![]() ![]() |
Source (recombinant) | Organism: ![]() |
Buffer solution | pH: 7.4 |
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: 50 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3D reconstruction | Resolution: 3.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 66000 / Symmetry type: POINT |