1U4F Allergen date Jul 24, 2004
title Crystal Structure Of Cytoplasmic Domains Of Irk1 (Kir2.1) Ch
authors S.Pegan, C.Arrabit, W.Zhou, W.Kwiatkowski, P.A.Slesinger, S.Choe
compound source
Molecule: Inward Rectifier Potassium Channel 2
Chain: A, B, C, D
Fragment: Cytoplasmic Domain
Synonym: Potassium Channel, Inwardly Rectifying, Subfamily 2; Inward Rectifier K+ Channel Kir2.1;
Engineered: Yes
Organism_scientific: Mus Musculus
Organism_common: House Mouse
Organism_taxid: 10090
Gene: Kcnj2, Irk1
Expression_system: Escherichia Coli Bl21(De3)
Expression_system_taxid: 469008
Expression_system_strain: Bl21 (De3)
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Phis8
symmetry Space Group: C 2 2 21
R_factor 0.225 R_Free 0.281
length a length b length c angle alpha angle beta angle gamma
112.461 138.294 138.745 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.41 Å
A, D, C, B

Primary referenceCytoplasmic domain structures of Kir2.1 and Kir3.1 show sites for modulating gating and rectification., Pegan S, Arrabit C, Zhou W, Kwiatkowski W, Collins A, Slesinger PA, Choe S, Nat Neurosci 2005 Mar;8(3):279-87. Epub 2005 Feb 20. PMID:15723059
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (138 Kb) [Save to disk]
  • Biological Unit Coordinates (1u4f.pdb1.gz) 132 Kb
  • Biological Unit Coordinates (1u4f.pdb2.gz) 262 Kb
  • CSU: Contacts of Structural Units for 1U4F
  • Likely Quarternary Molecular Structure file(s) for 1U4F
  • Structure Factors (333 Kb)
  • Retrieve 1U4F in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1U4F from S2C, [Save to disk]
  • Re-refined 1u4f structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1U4F 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 1U4F
  • 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 1U4F, from MSDmotif at EBI
  • Fold representative 1u4f from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1u4f_A] [1u4f_B] [1u4f_D] [1u4f] [1u4f_C]
  • SWISS-PROT database: [P35561]
  • Domain organization of [IRK2_MOUSE] by SWISSPFAM
  • Other resources with information on 1U4F
  • Community annotation for 1U4F 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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