3GD8 Membrane Protein date Feb 23, 2009
title Crystal Structure Of Human Aquaporin 4 At 1.8 And Its Mechan Conductance
authors J.D.Ho, R.Yeh, A.Sandstrom, I.Chorny, W.E.C.Harries, R.A.Robbins, L.J.W.Miercke, R.M.Stroud, Center For Structures Of Membrane (Csmp)
compound source
Molecule: Aquaporin-4
Chain: A
Fragment: Haqp4 Trypsinized (Residue 32-254)
Synonym: Aqp-4, Wch4, Mercurial-Insensitive Water Channel,
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Aqp4
Expression_system: Pichia Pastoris
Expression_system_taxid: 4922
Expression_system_strain: X-33
Expression_system_vector_type: Ppicz
symmetry Space Group: P 4 21 2
R_factor 0.160 R_Free 0.165
length a length b length c angle alpha angle beta angle gamma
82.058 82.058 76.353 90.00 90.00 90.00
method X-Ray Diffractionresolution 1.80 Å
ligand BOG, GOL enzyme

Primary referenceCrystal structure of human aquaporin 4 at 1.8 A and its mechanism of conductance., Ho JD, Yeh R, Sandstrom A, Chorny I, Harries WE, Robbins RA, Miercke LJ, Stroud RM, Proc Natl Acad Sci U S A. 2009 May 5;106(18):7437-42. Epub 2009 Apr 21. PMID:19383790
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (43 Kb) [Save to disk]
  • Biological Unit Coordinates (3gd8.pdb1.gz) 137 Kb
  • LPC: Ligand-Protein Contacts for 3GD8
  • CSU: Contacts of Structural Units for 3GD8
  • Likely Quarternary Molecular Structure file(s) for 3GD8
  • Structure Factors (182 Kb)
  • Retrieve 3GD8 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 3GD8 from S2C, [Save to disk]
  • Re-refined 3gd8 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 3GD8 in 3D
  • Proteopedia, because life has more than 2D.
  • On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure.
  • On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.
  • Visual 3D analysis of 3GD8
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Electron Density related parameters from EDS Electron Density Server, at Upsala
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 3GD8, from MSDmotif at EBI
  • Fold representative 3gd8 from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [3gd8] [3gd8_A]
  • SWISS-PROT database: [P55087]
  • Belongs to the major intrinsic protein (mip) family according to TCDB.
  • Domain organization of [AQP4_HUMAN] by SWISSPFAM
  • Other resources with information on 3GD8
  • Community annotation for 3GD8 at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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