4CSK

human Aquaporin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.28 Å
  • R-Value Free: 0.298 
  • R-Value Work: 0.234 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Crystallization and Preliminary Crystallographic Analysis of Human Aquaporin 1 at a Resolution of 3.28 A.

Ruiz Carrillo, D.To Yiu Ying, J.Darwis, D.Soon, C.H.Cornvik, T.Torres, J.Lescar, J.

(2014) Acta Crystallogr.,Sect.F 70: 1657

  • DOI: 10.1107/S2053230X14024558

  • PubMed Abstract: 
  • Aquaporin water channels (AQPs) are found in almost every organism from humans to bacteria. In humans, 13 classes of AQPs control water and glycerol homeostasis. Knockout studies have suggested that modulating the activity of AQPs could be beneficial ...

    Aquaporin water channels (AQPs) are found in almost every organism from humans to bacteria. In humans, 13 classes of AQPs control water and glycerol homeostasis. Knockout studies have suggested that modulating the activity of AQPs could be beneficial for the treatment of several pathologies. In particular, aquaporin 1 is a key factor in cell migration and angiogenesis, and constitutes a possible target for anticancer compounds and also for the treatment of glaucoma. Here, a preliminary crystallographic analysis at 3.28 Å resolution of crystals of human aquaporin 1 (hAQP1) obtained from protein expressed in Sf9 insect cells is reported. The crystals belonged to the tetragonal space group I422, with unit-cell parameters a = b = 89.28, c = 174.9 Å, and contained one monomer per asymmetric unit. The hAQP1 biological tetramer is generated via the crystallographic fourfold axis. This work extends previous electron crystallographic studies that used material extracted from human red blood cells, in which the resolution was limited to approximately 3.8 Å. It will inform efforts to improve lattice contacts and the diffraction limit for the future structure-based discovery of specific hAQP1 inhibitors.


    Organizational Affiliation

    School of Biological Sciences, Nanyang Technological University, 61 Biopolis Drive, Singapore 138673, Singapore.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
AQUAPORIN-1
A
292Homo sapiensMutation(s): 0 
Gene Names: AQP1 (CHIP28)
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Channels: Aquaporins and Glyceroporins
Protein: 
AQP1 red blood cell aquaporin water channel
Find proteins for P29972 (Homo sapiens)
Go to Gene View: AQP1
Go to UniProtKB:  P29972
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.28 Å
  • R-Value Free: 0.298 
  • R-Value Work: 0.234 
  • Space Group: I 4 2 2
Unit Cell:
Length (Å)Angle (°)
a = 89.280α = 90.00
b = 89.280β = 90.00
c = 174.850γ = 90.00
Software Package:
Software NamePurpose
Aimlessdata scaling
BUSTERrefinement
XDSdata reduction
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-12-24
    Type: Initial release