1RK4 Ion Transport Membrane Protein date Nov 20, 2003
title Crystal Structure Of A Soluble Dimeric Form Of Oxidised Clic
authors D.R.Littler, S.J.Harrop, W.D.Fairlie, L.J.Brown, G.J.Pankhurst, S.Pankhurst, M.Z.Demaere, T.J.Campbell, A.R.Bauskin, R.Tonini, M.Mazzanti, S.N.Breit, P.M.Curmi
compound source
Molecule: Chloride Intracellular Channel Protein 1
Chain: A, B
Synonym: Nuclear Chloride Ion Channel 27; Ncc27; P64 Clcp Channel Abp; P64clcp; Chloride Channel Abp;
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Clic1, Ncc27
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Bl21(De3)Plyss
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pgex-4t-1
symmetry Space Group: P 21 21 21
R_factor 0.176 R_Free 0.213
crystal
cell
length a length b length c angle alpha angle beta angle gamma
59.861 69.189 107.506 90.00 90.00 90.00
method X-Ray Diffractionresolution 1.79 Å
related structures by homologous chain: 1K0N, 1K0O
Gene
Ontology
ChainFunctionProcessComponent
A, B
  • voltage-gated ion channel ac...
  • chloride channel activity


  • Primary referenceThe Intracellular Chloride Ion Channel Protein CLIC1 Undergoes a Redox-controlled Structural Transition., Littler DR, Harrop SJ, Fairlie WD, Brown LJ, Pankhurst GJ, Pankhurst S, DeMaere MZ, Campbell TJ, Bauskin AR, Tonini R, Mazzanti M, Breit SN, Curmi PM, J Biol Chem 2004 Mar 5;279(10):9298-9305. Epub 2003 Nov 12. PMID:14613939
    Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (77 Kb) [Save to disk]
  • Biological Unit Coordinates (1rk4.pdb1.gz) 72 Kb
  • CSU: Contacts of Structural Units for 1RK4
  • Likely Quarternary Molecular Structure file(s) for 1RK4
  • Structure Factors (305 Kb)
  • Retrieve 1RK4 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1RK4 from S2C, [Save to disk]
  • Re-refined 1rk4 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1RK4 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 1RK4
  • 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 1RK4, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1rk4a2, region A:22-91 [Jmol] [rasmolscript] [script source]
        - Domain d1rk4a1, region A:92-234 [Jmol] [rasmolscript] [script source]
        - Domain d1rk4b2, region B:22-91 [Jmol] [rasmolscript] [script source]
        - Domain d1rk4b1, region B:92-234 [Jmol] [rasmolscript] [script source]
  • Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH
  • Summaries and structural analyses of PDB data files from PDBSum
  • Identification of Protein Pockets & Cavities at CASTp
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1rk4] [1rk4_B] [1rk4_A]
  • SWISS-PROT database: [O00299]
  • Belongs to the intracellular chloride channel (clic) family according to TCDB.
  • Domain organization of [CLIC1_HUMAN] by SWISSPFAM
  • Other resources with information on 1RK4
  • Community annotation for 1RK4 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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