1H6I

A REFINED STRUCTURE OF HUMAN AQUAPORIN 1


Experimental Data Snapshot

  • Method: ELECTRON CRYSTALLOGRAPHY
  • Resolution: 3.54 Å
  • R-Value Free: 0.376 
  • R-Value Work: 0.364 
  • R-Value Observed: 0.364 

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This is version 1.2 of the entry. See complete history


Literature

A Refined Structure of Human Aquaporin 1

De Groot, B.L.Engel, A.Grubmuller, H.

(2001) FEBS Lett 504: 206

  • DOI: 10.1016/s0014-5793(01)02743-0
  • Primary Citation of Related Structures:  
    1H6I

  • PubMed Abstract: 
  • A refined structure of the human water channel aquaporin-1 is presented. The model rests on the high resolution X-ray structure of the homologous bacterial glycerol transporter GlpF, electron crystallographic data at 3.8 A resolution and a multiple sequence alignment of the aquaporin superfamily ...

    A refined structure of the human water channel aquaporin-1 is presented. The model rests on the high resolution X-ray structure of the homologous bacterial glycerol transporter GlpF, electron crystallographic data at 3.8 A resolution and a multiple sequence alignment of the aquaporin superfamily. The crystallographic R and free R values (36.7% and 37.8%) for the refined structure are significantly lower than for previous models. Improved geometry and enhanced stability in molecular dynamics simulations demonstrate a significant improvement of the aquaporin-1 structure. Comparison with previous aquaporin-1 models shows significant differences, not only in the loop regions, but also in the core of the water channel.


    Related Citations: 
    • The Fold of Human Aquaporin 1
      De Groot, B.L., Heymann, J.B., Engel, A., Mitsuoka, K., Fujiyoshi, Y., Grubmuller, H.
      (2000) J Mol Biol 300: 987

    Organizational Affiliation

    Max Planck Institute for Biophysical Chemistry, Theoretical Molecular Biophysics Group, Göttingen, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
AQUAPORIN-1A269Homo sapiensMutation(s): 0 
Gene Names: AQP1CHIP28
Find proteins for P29972 (Homo sapiens)
Explore P29972 
Go to UniProtKB:  P29972
NIH Common Fund Data Resources
PHAROS:  P29972
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON CRYSTALLOGRAPHY
  • Resolution: 3.54 Å
  • R-Value Free: 0.376 
  • R-Value Work: 0.364 
  • R-Value Observed: 0.364 
  • Space Group: P 4 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 99.58α = 90
b = 99.58β = 90
c = 100γ = 90
Software Package:
Software NamePurpose
CNSrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2001-12-13
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance