2PC6

Crystal structure of putative acetolactate synthase- small subunit from Nitrosomonas europaea


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.205 
  • R-Value Observed: 0.208 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Crystal structures of TM0549 and NE1324--two orthologs of E. coli AHAS isozyme III small regulatory subunit.

Petkowski, J.J.Chruszcz, M.Zimmerman, M.D.Zheng, H.Skarina, T.Onopriyenko, O.Cymborowski, M.T.Koclega, K.D.Savchenko, A.Edwards, A.Minor, W.

(2007) Protein Sci 16: 1360-1367

  • DOI: 10.1110/ps.072793807
  • Primary Citation of Related Structures:  
    2PC6, 2FGC

  • PubMed Abstract: 
  • Crystal structures of two orthologs of the regulatory subunit of acetohydroxyacid synthase III (AHAS, EC 2.2.1.6) from Thermotoga maritima (TM0549) and Nitrosomonas europea (NE1324) were determined by single-wavelength anomalous diffraction methods with the use of selenomethionine derivatives at 2 ...

    Crystal structures of two orthologs of the regulatory subunit of acetohydroxyacid synthase III (AHAS, EC 2.2.1.6) from Thermotoga maritima (TM0549) and Nitrosomonas europea (NE1324) were determined by single-wavelength anomalous diffraction methods with the use of selenomethionine derivatives at 2.3 A and 2.5 A, respectively. TM0549 and NE1324 share the same fold, and in both proteins the polypeptide chain contains two separate domains of a similar size. Each protein contains a C-terminal domain with ferredoxin-type fold and an N-terminal ACT domain, of which the latter is characteristic for several proteins involved in amino acid metabolism. The ferredoxin domain is stabilized by a calcium ion in the crystal structure of NE1324 and by a Mg(H2O)(6)2+ ion in TM0549. Both TM0549 and NE1324 form dimeric assemblies in the crystal lattice.


    Organizational Affiliation

    Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville 22908, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Probable acetolactate synthase isozyme III (Small subunit) ABCD165Nitrosomonas europaea ATCC 19718Mutation(s): 0 
Gene Names: ilvHNE1324
EC: 4.1.3.18 (PDB Primary Data), 2.2.1.6 (UniProt)
Find proteins for Q82UZ2 (Nitrosomonas europaea (strain ATCC 19718 / CIP 103999 / KCTC 2705 / NBRC 14298))
Explore Q82UZ2 
Go to UniProtKB:  Q82UZ2
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A,B,C,DL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

Unit Cell:
Length ( Å )Angle ( ˚ )
a = 122.123α = 90
b = 122.123β = 90
c = 111.559γ = 90
Software Package:
Software NamePurpose
HKL-2000data scaling
SHELXDphasing
SHELXEmodel building
MLPHAREphasing
DMmodel building
SOLVEphasing
Omodel building
Cootmodel building
CCP4model building
REFMACrefinement
HKL-2000data collection
HKL-2000data reduction
HKL-3000phasing
DMphasing
RESOLVEphasing
CCP4phasing
ARP/wARPmodel building

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2007-04-10
    Type: Initial release
  • Version 1.1: 2007-10-09
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Advisory, Derived calculations, Version format compliance
  • Version 1.3: 2012-02-01
    Changes: Non-polymer description
  • Version 1.4: 2017-10-18
    Changes: Refinement description