Biological Assembly 1  

 3D View: Structure | 1D-3D View | Validation Report

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 23.87 kDa 
• Atom Count: 1671 
• Modelled Residue Count: 213 
• Deposited Residue Count: 213 
• Unique protein chains: 1

1MO7

ATPase

• PDB DOI: 10.2210/pdb1MO7/pdb
• BMRB: 5577

• Classification: HYDROLASE
• Organism(s): Rattus norvegicus
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2002-09-08 Released: 2003-06-03 
• Deposition Author(s): Hilge, M., Siegal, G., Vuister, G.W., Guentert, P., Gloor, S.M., Abrahams, J.P.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy,target function 

Literature

ATP-induced conformational changes of the nucleotide-binding domain of Na,K-ATPase

Hilge, M., Siegal, G., Vuister, G.W., Guentert, P., Gloor, S.M., Abrahams, J.P.

(2003) Nat Struct Biol 10: 468-474

• PubMed: 12730684 
• DOI: 10.1038/nsb924
• Primary Citation of Related Structures:  
  1MO7, 1MO8


• PubMed Abstract: 
  

The Na,K-ATPase hydrolyzes ATP to drive the coupled extrusion and uptake of Na+ and K+ ions across the plasma membrane. Here, we report two high-resolution NMR structures of the 213-residue nucleotide-binding domain of rat alpha1 Na,K-ATPase, determined in the absence and the presence of ATP. The nucleotide binds in the anti conformation and shows a relative paucity of interactions with the protein, reflecting the low-affinity ATP-binding state. Binding of ATP induces substantial conformational changes in the binding pocket and in residues located in the hinge region connecting the N- and P-domains. Structural comparison with the Ca-ATPase stabilized by the inhibitor thapsigargin, E2(TG), and the model of the H-ATPase in the E1 form suggests that the observed changes may trigger the series of events necessary for the release of the K+ ions and/or disengagement of the A-domain, leading to the eventual transfer of the gamma-phosphate group to the invariant Asp369.

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Organizational Affiliation: 

Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands. [e-mail]

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Sodium/Potassium-transporting ATPase alpha-1 chain	A	213	Rattus norvegicus	Mutation(s): 0  Gene Names: Atp1a1 EC: 3.6.3.9 (PDB Primary Data), 7.2.2.13 (UniProt)
UniProt
Find proteins for P06685 (Rattus norvegicus) Explore P06685  Go to UniProtKB:  P06685

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy,target function 
• OLDERADO: 1MO7 Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2002-09-08 
• Released Date: 2003-06-03 
Deposition Author(s): Hilge, M., Siegal, G., Vuister, G.W., Guentert, P., Gloor, S.M., Abrahams, J.P.

Revision History  

• Version 1.0: 2003-06-03
  Type: Initial release
  
• Version 1.1: 2008-04-28
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2022-02-23
  Changes: Database references, Derived calculations