3ZRS Metal Transport date Jun 17, 2011
title X-Ray Crystal Structure Of A Kirbac Potassium Channel Highli A Mechanism Of Channel Opening At The Bundle-Crossing Gate.
authors V.N.Bavro, R.De Zorzi, M.R.Schmidt, J.R.C.Muniz, L.Zubcevic, M.S. C.Venien-Bryan, S.J.Tucker
compound source
Molecule: Atp-Sensitive Inward Rectifier Potassium Channel
Chain: A
Synonym: Kirbac 3.1, Kirbac3.1 Potassium Channel, Potassium
Engineered: Yes
Mutation: Yes
Other_details: C-Terminal Hexahistidine Tag Appended
Organism_scientific: Magnetospirillum Magnetotacticum
Organism_taxid: 188
Expression_system: Escherichia Coli
Expression_system_taxid: 469008
Expression_system_strain: Bl21(De3)
Expression_system_variant: Codon Plus Rp
Expression_system_vector_type: Plasmid
Expression_system_vector: Pet30a
symmetry Space Group: P 4 21 2
R_factor 0.2204 R_Free 0.2589
crystal
cell
length a length b length c angle alpha angle beta angle gamma
106.240 106.240 89.800 90.00 90.00 90.00
method X-Ray Diffractionresolution 3.05 Å
ligand CL, K enzyme
Gene
Ontology
ChainFunctionProcessComponent
A
  • inward rectifier potassium c...
  • voltage-gated ion channel ac...


  • Primary referenceStructure of a KirBac potassium channel with an open bundle crossing indicates a mechanism of channel gating., Bavro VN, De Zorzi R, Schmidt MR, Muniz JR, Zubcevic L, Sansom MS, Venien-Bryan C, Tucker SJ, Nat Struct Mol Biol. 2012 Jan 8;19(2):158-63. doi: 10.1038/nsmb.2208. PMID:22231399
    Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (101 Kb) [Save to disk]
  • Biological Unit Coordinates (3zrs.pdb1.gz) 369 Kb
  • LPC: Ligand-Protein Contacts for 3ZRS
  • CSU: Contacts of Structural Units for 3ZRS
  • Structure Factors (514 Kb)
  • Retrieve 3ZRS in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 3ZRS from S2C, [Save to disk]
  • Re-refined 3zrs structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
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  • Visual 3D analysis of 3ZRS
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  • 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 3ZRS, from MSDmotif at EBI
  • Fold representative 3zrs from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [3zrs_A] [3zrs]
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