Biological Assembly 1

Protein Symmetry: Cyclic - C4 (View in 3D)

Protein Stoichiometry: Homo 4-mer - A4

Macromolecule Content

• Unique protein chains: 1

3GD8

Crystal Structure of Human Aquaporin 4 at 1.8 and its Mechanism of Conductance

• DOI: 10.2210/pdb3gd8/pdb

• Classification: MEMBRANE PROTEIN
• Deposited: 2009-02-23 Released: 2009-03-31
• Deposition author(s): Ho, J.D., Yeh, R., Sandstrom, A., Chorny, I., Harries, W.E.C., Robbins, R.A., Miercke, L.J.W., Stroud, R.M., Center for Structures of Membrane Proteins
• Organism: Homo sapiens
• Expression System: Pichia pastoris

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.8 Å
• R-Value Free: 0.165
• R-Value Work: 0.160

wwPDB Validation 3D Report Full Report

Literature

Macromolecules

Classification: MEMBRANE PROTEIN

Total Structure Weight: 24279.72

Membrane Protein

Source: mpstruc | Group: ALPHA-HELICAL

Subgroup Name: Channels: Aquaporins and Glyceroporins

Protein Name: AQP4 aquaporin water channel

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions	3D Interactions
BOG	A	B-OCTYLGLUCOSIDE C14 H28 O6 HEGSGKPQLMEBJL-RKQHYHRCSA-N	Poseview Image of BOG in 3GD8 Help Black dashed lines indicate hydrogen bonds, salt bridges, and metal interactions. Green solid line show hydrophobic interactions and green dashed lines show π-π and π-cation interactions. Source Information Interactions are determined by geometric criteria as described in K. Stierand, M. Rarey (2010), Drawing the PDB: Protein-ligand complexes in two dimensions, ACS Med. Chem. Lett., DOI: 10.1021/ml100164p. Ions and some metal complexes are excluded, as well as cases where no interaction profile could be generated. Poseview diagrams can be calculated for approximately 92% of the remaining complexes in the PDB. PoseView is developed at the Center for Bioinformatics Hamburg and jointly provided with BioSolveIT as a community service at the PDB. A stand-alone version is provided by BioSolveIT.	Ligand Explorer NGL   Binding Pocket (JSmol)   Electron Density (JSmol)
GOL	A	GLYCEROL 2, (Synonym) C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N	Poseview Image of GOL in 3GD8 Help Black dashed lines indicate hydrogen bonds, salt bridges, and metal interactions. Green solid line show hydrophobic interactions and green dashed lines show π-π and π-cation interactions. Source Information Interactions are determined by geometric criteria as described in K. Stierand, M. Rarey (2010), Drawing the PDB: Protein-ligand complexes in two dimensions, ACS Med. Chem. Lett., DOI: 10.1021/ml100164p. Ions and some metal complexes are excluded, as well as cases where no interaction profile could be generated. Poseview diagrams can be calculated for approximately 92% of the remaining complexes in the PDB. PoseView is developed at the Center for Bioinformatics Hamburg and jointly provided with BioSolveIT as a community service at the PDB. A stand-alone version is provided by BioSolveIT.	Ligand Explorer NGL   Binding Pocket (JSmol)   Electron Density (JSmol)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.8 Å
• R-Value Free: 0.165
• R-Value Work: 0.160
• Space Group: P 4 2₁ 2

Unit Cell:

Length (Å)	Angle (°)
a = 82.06	α = 90.00
b = 82.06	β = 90.00
c = 76.35	γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots

Entry History

Deposition Data

• Deposited Date: 2009-02-23
• Released Date: 2009-03-31
• Deposition author(s): Ho, J.D., Yeh, R., Sandstrom, A., Chorny, I., Harries, W.E.C., Robbins, R.A., Miercke, L.J.W., Stroud, R.M., Center for Structures of Membrane Proteins (CSMP)

Revision History

• 2011-07-13
  Type: Advisory, Version format compliance