2A0B

HISTIDINE-CONTAINING PHOSPHOTRANSFER DOMAIN OF ARCB FROM ESCHERICHIA COLI


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.57 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.190 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Refined structure of the histidine-containing phosphotransfer (HPt) domain of the anaerobic sensor kinase ArcB from Escherichia coli at 1.57 A resolution.

Kato, M.Mizuno, T.Shimizu, T.Hakoshima, T.

(1999) Acta Crystallogr.,Sect.D 55: 1842-1849


  • PubMed Abstract: 
  • The crystal structure of the histidine-containing phosphotransfer (HPt) domain of the anaerobic sensor kinase ArcB from Escherichia coli has been refined to 1.57 A resolution, using the coordinates of the earlier 2.06 A structure as a starting model. ...

    The crystal structure of the histidine-containing phosphotransfer (HPt) domain of the anaerobic sensor kinase ArcB from Escherichia coli has been refined to 1.57 A resolution, using the coordinates of the earlier 2.06 A structure as a starting model. The final model contained 956 protein atoms, one zinc ion and 156 water molecules, with an R factor of 19.0%. The high-resolution electron-density maps clearly revealed additional solvent molecules and seven discrete rotamers in the protein side chains. One residue, Met755, was fully buried but was able to occupy the space in the hydrophobic core by means of the two-state conformation of its side chain. One water molecule was buried in the protein core and contributed to the rigidity of the HPt domain, cooperating in the coordination of the zinc ion.


    Related Citations: 
    • Crystallization and Preliminary X-Ray Analysis of a Histidine Kinase Domain of the Anaerobic Sensor Protein Arcb from Escherichia Coli
      Kato, M.,Ishige, K.,Mizuno, T.,Shimizu, T.,Hakoshima, T.
      (1996) Acta Crystallogr.,Sect.D 52: 1214
    • Insights Into Multistep Phosphorelay from the Crystal Structure of the C-Terminal Hpt Domain of Arcb
      Kato, M.,Mizuno, T.,Shimizu, T.,Hakoshima, T.
      (1997) Cell 88: 717


    Organizational Affiliation

    Department of Molecular Biology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0101, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HPT DOMAIN
A
125Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: arcB
EC: 2.7.13.3
Find proteins for P0AEC3 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AEC3
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.57 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.190 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 30.456α = 90.00
b = 34.924β = 90.00
c = 110.741γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
PROCESSdata reduction
PROCESSdata scaling
N/NAmodel building

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-06-17
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance