Biological Assembly 1  

 3D View: Structure

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 7331.31 
• Atom Count: 520 
• Residue Count: 64 
• Unique protein chains: 1

2MKV

Structure of the NA,K-ATPASE regulatory protein FXYD2b in micelles

• DOI: 10.2210/pdb2MKV/pdb
• BMRB: 19797

• Classification: TRANSPORT PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): 2 


• Deposited: 2014-02-13 Released: 2014-05-14 
• Deposition Author(s): Marassi, F.M., Gong, X.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 10 
• Selection Criteria: structures with the lowest energy 

Literature

Structure of the Na,K-ATPase regulatory protein FXYD2b in micelles: Implications for membrane-water interfacial arginines.

Gong, X.M., Ding, Y., Yu, J., Yao, Y., Marassi, F.M.

(2015) Biochim.Biophys.Acta 1848: 299-306

• PubMed: 24794573 
• DOI: 10.1016/j.bbamem.2014.04.021


• PubMed Abstract: 
  

FXYD2 is a membrane protein responsible for regulating the function of the Na,K-ATPase in mammalian kidney epithelial cells. Here we report the structure of FXYD2b, one of two splice variants of the protein, determined by NMR spectroscopy in detergent micelles. Solid-state NMR characterization of the protein embedded in phospholipid bilayers indicates that several arginine side chains may be involved in hydrogen bond interactions with the phospholipid polar head groups. The structure and the NMR data suggest that FXYD2b could regulate the Na,K-ATPase by modulating the effective membrane surface electrostatics near the ion binding sites of the pump.

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Organizational Affiliation: 

Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Sodium/potassium-transporting ATPase subunit gamma	A	64	Homo sapiens	Mutation(s): 2  Gene Names: FXYD2 (ATP1C, ATP1G1)
Find proteins for P54710 (Homo sapiens) Go to Gene View: FXYD2 Go to UniProtKB:  P54710

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 10 
• Selection Criteria: structures with the lowest energy 

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2014-02-13 
• Released Date: 2014-05-14 
• Deposition Author(s): Marassi, F.M., Gong, X.

Revision History 

• Version 1.0: 2014-05-14
  Type: Initial release
• Version 1.1: 2014-05-21
  Type: Database references
• Version 1.2: 2014-12-24
  Type: Database references