3HFE Transport Protein date May 11, 2009
title A Trimeric Form Of The Kv7.1 A Domain Tail
authors Q.Xu, D.L.Minor
compound source
Molecule: Potassium Voltage-Gated Channel Subfamily Kqt Mem
Chain: A, B, C
Fragment: Unp Residues 583-611
Synonym: Voltage-Gated Potassium Channel Subunit Kv7.1, Iks Slow Voltage-Gated Potassium Channel Subunit Alpha Kvlqt1, 1;
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Kcnq1, Kcna8, Kcna9, Kvlqt1
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Bl21(Plys)S
symmetry Space Group: C 1 2 1
R_factor 0.198 R_Free 0.251
length a length b length c angle alpha angle beta angle gamma
59.789 40.838 34.830 90.00 118.41 90.00
method X-Ray Diffractionresolution 1.70 Å
note 3HFE is a representative structure
Primary referenceCrystal structure of a trimeric form of the K(V)7.1 (KCNQ1) A domain Tail coiled-coil reveals structural plasticity and context dependent changes in a putative coiled-coil trimerization motif., Xu Q, Minor DL Jr, Protein Sci. 2009 Aug 19. PMID:19693805
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (19 Kb) [Save to disk]
  • Biological Unit Coordinates (3hfe.pdb1.gz) 14 Kb
  • CSU: Contacts of Structural Units for 3HFE
  • Structure Factors (100 Kb)
  • Retrieve 3HFE in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 3HFE from S2C, [Save to disk]
  • Re-refined 3hfe structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 3HFE 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 3HFE
  • 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 3HFE, from MSDmotif at EBI
  • Fold representative 3hfe from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [3hfe_C] [3hfe_A] [3hfe] [3hfe_B]
  • SWISS-PROT database: [P51787]
  • Belongs to the voltage-gated ion channel (vic) superfamily according to TCDB.
  • Domain organization of [KCNQ1_HUMAN] by SWISSPFAM
  • Other resources with information on 3HFE
  • Community annotation for 3HFE 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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