1HO3

CRYSTAL STRUCTURE ANALYSIS OF E. COLI L-ASPARAGINASE II (Y25F MUTANT)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.182 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structures of two highly homologous bacterial L-asparaginases: a case of enantiomorphic space groups.

Jaskolski, M.Kozak, M.Lubkowski, J.Palm, G.Wlodawer, A.

(2001) Acta Crystallogr.,Sect.D 57: 369-377

  • Primary Citation of Related Structures:  1HFJ, 1HFK

  • PubMed Abstract: 
  • Quasi-enantiomorphic crystals of the Y25F mutant of Escherichia coli L-asparaginase and of the native Erwinia chrysanthemi L-asparaginase were obtained in the hexagonal space groups P6(5)22 and P6(1)22, respectively. The structures of these highly ho ...

    Quasi-enantiomorphic crystals of the Y25F mutant of Escherichia coli L-asparaginase and of the native Erwinia chrysanthemi L-asparaginase were obtained in the hexagonal space groups P6(5)22 and P6(1)22, respectively. The structures of these highly homologous enzymes were solved by molecular replacement and were refined with data extending to 2.2-2.5 A. These structures were compared with each other, as well as with other L-asparaginase structures previously observed with different crystal packing. It is concluded that the observed phenomenon, which is rare, was most likely to have arisen by chance.


    Related Citations: 
    • Preliminary Crystallographic Studies of Y25F Mutant of Periplasmic Escherichia coli L-asparaginase
      Kozak, M.,Jaskolski, M.,Roehm, K.H.
      (2000) ACTA BIOCHIM.POL. 47: 807
    • Crystal Structure of Escherichia coli L-asparaginase, an Enzyme Used in Cancer Therapy
      Swain, A.L.,Jaskolski, M.,Housset, D.,Rao, J.K.M.,Wlodawer, A.
      (1993) Proc.Natl.Acad.Sci.USA 90: 1474


    Organizational Affiliation

    Department of Crystallography, Faculty of Chemistry, A. Mickiewicz University, Poznan, Poland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
L-ASPARAGINASE II
A, B
326Escherichia coli (strain K12)Gene Names: ansB
EC: 3.5.1.1
Find proteins for P00805 (Escherichia coli (strain K12))
Go to UniProtKB:  P00805
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ASP
Query on ASP

Download SDF File 
Download CCD File 
A, B
ASPARTIC ACID
C4 H7 N O4
CKLJMWTZIZZHCS-REOHCLBHSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.182 
  • Space Group: P 65 2 2
Unit Cell:
Length (Å)Angle (°)
a = 80.999α = 90.00
b = 80.999β = 90.00
c = 341.075γ = 120.00
Software Package:
Software NamePurpose
MAR345data collection
CNSrefinement
AMoREphasing
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-03-07
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance
  • Version 1.3: 2017-10-04
    Type: Advisory, Refinement description