3E8G Membrane Protein date Aug 19, 2008
title Crystal Structure Of The The Open Nak Channel-Na+Ca2+ Compl
authors Y.Jiang, A.Alam
compound source
Molecule: Potassium Channel Protein
Chain: A, B
Fragment: Transmembrane Domain, Residues 19-110
Engineered: Yes
Organism_scientific: Bacillus Cereus
Organism_taxid: 1396
Atcc: 14579
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Sg13009
Expression_system_plasmid: Pqe60
symmetry Space Group: I 4
R_factor 0.202 R_Free 0.235
crystal
cell
length a length b length c angle alpha angle beta angle gamma
67.990 67.990 89.168 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.00 Å
ligand CA, CS, MPD, NA enzyme
Primary referenceStructural analysis of ion selectivity in the NaK channel., Alam A, Jiang Y, Nat Struct Mol Biol. 2009 Jan;16(1):35-41. Epub 2008 Dec 21. PMID:19098915
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (36 Kb) [Save to disk]
  • Biological Unit Coordinates (3e8g.pdb1.gz) 61 Kb
  • Biological Unit Coordinates (3e8g.pdb2.gz) 63 Kb
  • LPC: Ligand-Protein Contacts for 3E8G
  • CSU: Contacts of Structural Units for 3E8G
  • Likely Quarternary Molecular Structure file(s) for 3E8G
  • Structure Factors (110 Kb)
  • Retrieve 3E8G in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 3E8G from S2C, [Save to disk]
  • Re-refined 3e8g structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 3E8G 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 3E8G
  • 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
  • 3D motif for 3E8G, from MSDmotif at EBI
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [3e8g_A] [3e8g_B] [3e8g]
  • SWISS-PROT database: [Q81HW2]
  • Belongs to the voltage-gated ion channel (vic) superfamily according to TCDB.
  • Domain organization of [Q81HW2_BACCR] by SWISSPFAM
  • Other resources with information on 3E8G
  • Community annotation for 3E8G 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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