4OJ2 | pdb_00004oj2

The structure of aquaporin

• PDB DOI: https://doi.org/10.2210/pdb4OJ2/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Homo sapiens
• Expression System: Spodoptera frugiperda
• Mutation(s): Yes 
• Membrane Protein: Yes  OPMPDBTMMemProtMD


• Deposited: 2014-01-20 Released: 2014-05-07 
• Deposition Author(s): Vahedi-Faridi, A., Lodowski, D., Engel, A., Transcontinental EM Initiative for Membrane Protein Structure (TEMIMPS)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.05 Å
• R-Value Free: 
  0.299 (Depositor), 0.300 (DCC) 
• R-Value Work: 
  0.257 (Depositor), 0.260 (DCC) 
• R-Value Observed: 
  0.259 (Depositor) 

Literature

The structure of aquaporin

Vahedi-Faridi, A., Lodowski, D., Schenk, A., Kaptan, S., De groot, B., Walz, T., Engel, A.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C4  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 29.17 kDa 
• Atom Count: 1,915 
• Modeled Residue Count: 253 
• Deposited Residue Count: 274 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Aquaporin-2	A [auth X]	274	Homo sapiens	Mutation(s): 1  Gene Names: AQP2 Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for P41181 (Homo sapiens) Explore P41181  Go to UniProtKB:  P41181
PHAROS:  P41181 GTEx:  ENSG00000167580

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.05 Å
• R-Value Free:  0.299 (Depositor), 0.300 (DCC) 
• R-Value Work:  0.257 (Depositor), 0.260 (DCC) 
• R-Value Observed: 0.259 (Depositor) 

Space Group: P 4 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 95.717	α = 90
b = 95.717	β = 90
c = 79.058	γ = 90

Software Package:

Software Name	Purpose
ADSC	data collection
SOLVE	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2014-05-07 
Deposition Author(s): Vahedi-Faridi, A., Lodowski, D., Engel, A., Transcontinental EM Initiative for Membrane Protein Structure (TEMIMPS)

Revision History  

• Version 1.0: 2014-05-07
  Type: Initial release
  
• Version 1.1: 2024-02-28
  Changes: Data collection, Database references