+
Open data
-
Basic information
Entry | ![]() | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Title | Cryo-EM structure of NKCC1 Fu_CTD | |||||||||
![]() | ||||||||||
![]() |
| |||||||||
![]() | cotransporter / dimer / ion / membrane protein / TRANSPORT PROTEIN | |||||||||
Function / homology | ![]() chloride:monoatomic cation symporter activity / sodium ion transport / plasma membrane Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.34 Å | |||||||||
![]() | Moseng MA | |||||||||
Funding support | ![]()
| |||||||||
![]() | ![]() Title: Inhibition mechanism of NKCC1 involves the carboxyl terminus and long-range conformational coupling. Authors: Mitchell A Moseng / Chih-Chia Su / Kerri Rios / Meng Cui / Meinan Lyu / Przemyslaw Glaza / Philip A Klenotic / Eric Delpire / Edward W Yu / ![]() Abstract: The Na-K-2Cl cotransporter-1 (NKCC1) is an electroneutral Na-dependent transporter responsible for simultaneously translocating Na, K, and Cl ions into cells. In human tissue, NKCC1 plays a critical ...The Na-K-2Cl cotransporter-1 (NKCC1) is an electroneutral Na-dependent transporter responsible for simultaneously translocating Na, K, and Cl ions into cells. In human tissue, NKCC1 plays a critical role in regulating cytoplasmic volume, fluid intake, chloride homeostasis, and cell polarity. Here, we report four structures of human NKCC1 (hNKCC1), both in the absence and presence of loop diuretic (bumetanide or furosemide), using single-particle cryo-electron microscopy. These structures allow us to directly observe various novel conformations of the hNKCC1 dimer. They also reveal two drug-binding sites located at the transmembrane and cytosolic carboxyl-terminal domains, respectively. Together, our findings enable us to delineate an inhibition mechanism that involves a coupled movement between the cytosolic and transmembrane domains of hNKCC1. | |||||||||
History |
|
-
Structure visualization
Supplemental images |
---|
-
Downloads & links
-EMDB archive
Map data | ![]() | 230.1 MB | ![]() | |
---|---|---|---|---|
Header (meta data) | ![]() ![]() | 13.6 KB 13.6 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 13.2 KB | Display | ![]() |
Images | ![]() | 108.3 KB | ||
Filedesc metadata | ![]() | 5.4 KB | ||
Others | ![]() ![]() | 226.7 MB 226.7 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 854.9 KB | Display | ![]() |
---|---|---|---|---|
Full document | ![]() | 854.4 KB | Display | |
Data in XML | ![]() | 22.1 KB | Display | |
Data in CIF | ![]() | 28.5 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8steMC ![]() 7mxoC ![]() 7n3nC ![]() 7sflC ![]() 7smpC M: atomic model generated by this map C: citing same article ( |
---|---|
Similar structure data | Similarity search - Function & homology ![]() |
-
Links
EMDB pages | ![]() ![]() |
---|
-
Map
File | ![]() | ||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Voxel size | X=Y=Z: 1.07 Å | ||||||||||||||||||||
Density |
| ||||||||||||||||||||
Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
|
-Supplemental data
-Half map: #2
File | emd_40759_half_map_1.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Projections & Slices |
| ||||||||||||
Density Histograms |
-Half map: #1
File | emd_40759_half_map_2.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Projections & Slices |
| ||||||||||||
Density Histograms |
-
Sample components
-Entire : NKCC1_Fu_CTD
Entire | Name: NKCC1_Fu_CTD |
---|---|
Components |
|
-Supramolecule #1: NKCC1_Fu_CTD
Supramolecule | Name: NKCC1_Fu_CTD / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1 |
---|---|
Source (natural) | Organism: ![]() |
-Macromolecule #1: Solute carrier family 12 member 2
Macromolecule | Name: Solute carrier family 12 member 2 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO |
---|---|
Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 45.190438 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: SSTQALTYLN ALQHSIRLSG VEDHVKNFRP QCLVMTGAPN SRPALLHLVH DFTKNVGLMI CGHVHMGPRR QAMKEMSIDQ AKYQRWLIK NKMKAFYAPV HADDLREGAQ YLMQAAGLGR MKPNTLVLGF KKDWLQADMR DVDMYINLFH DAFDIQYGVV V IRLKEGLD ...String: SSTQALTYLN ALQHSIRLSG VEDHVKNFRP QCLVMTGAPN SRPALLHLVH DFTKNVGLMI CGHVHMGPRR QAMKEMSIDQ AKYQRWLIK NKMKAFYAPV HADDLREGAQ YLMQAAGLGR MKPNTLVLGF KKDWLQADMR DVDMYINLFH DAFDIQYGVV V IRLKEGLD ISHLQGQESK GPIVPLNVAD QKLLEASTQF QKKQGKNTID VWWLFDDGGL TLLIPYLLTT KKKWKDCKIR VF IGGKINR IDHDRRAMAT LLSKFRIDFS DIMVLGDINT KPKKENIIAF EEIIEPYRLH EDDKEQDIAD KMKEDEPWRI TDN ELELYK TKTYRQIRLN ELLKEHSSTA NIIVMSLPVA RKGAVSSALY MAWLEALSKD LPPILLVRGN HQSVLTF UniProtKB: Solute carrier family 12 member 2 |
-Macromolecule #2: 5-(AMINOSULFONYL)-4-CHLORO-2-[(2-FURYLMETHYL)AMINO]BENZOIC ACID
Macromolecule | Name: 5-(AMINOSULFONYL)-4-CHLORO-2-[(2-FURYLMETHYL)AMINO]BENZOIC ACID type: ligand / ID: 2 / Number of copies: 2 / Formula: FUN |
---|---|
Molecular weight | Theoretical: 330.744 Da |
Chemical component information | ![]() ChemComp-FUN: |
-Experimental details
-Structure determination
Method | cryo EM |
---|---|
![]() | single particle reconstruction |
Aggregation state | particle |
-
Sample preparation
Buffer | pH: 7.5 |
---|---|
Vitrification | Cryogen name: ETHANE |
-
Electron microscopy
Microscope | FEI TITAN KRIOS |
---|---|
Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 40.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: OTHER / Imaging mode: BRIGHT FIELD / Nominal defocus max: 5.0 µm / Nominal defocus min: 1.2 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |