2XED

Nocardia farcinica maleate cis-trans isomerase C194S mutant with a covalently bound succinylcysteine intermediate


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.222 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

A Covalent Succinylcysteine-Like Intermediate in the Enzyme-Catalyzed Transformation of Maleate to Fumarate by Maleate Isomerase.

Fisch, F.Fleites, C.M.Delenne, M.Baudendistel, N.Hauer, B.Turkenburg, J.P.Hart, S.Bruce, N.C.Grogan, G.

(2010) J.Am.Chem.Soc. 132: 11455

  • DOI: 10.1021/ja1053576
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Maleate isomerase (MI), a member of the Asp/Glu racemase superfamily, catalyzes cis-trans isomerization of the C2-C3 double bond in maleate to yield fumarate. Mutational studies, in conjunction with the structure of the C194A mutant of Nocardia farci ...

    Maleate isomerase (MI), a member of the Asp/Glu racemase superfamily, catalyzes cis-trans isomerization of the C2-C3 double bond in maleate to yield fumarate. Mutational studies, in conjunction with the structure of the C194A mutant of Nocardia farcinica MI cocrystallized with maleate, have revealed an unprecedented mode of catalysis for the superfamily in which the isomerization reaction is initiated by nucleophilic attack of cysteine at the double bond, yielding a covalent succinylcysteine-like intermediate.


    Organizational Affiliation

    York Structural Biology Laboratory, Department of Chemistry, University of York, York YO10 5YW, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PUTATIVE MALEATE ISOMERASE
A, B, C, D
273Nocardia farcinica (strain IFM 10152)Mutation(s): 1 
Gene Names: maiA
EC: 5.2.1.1
Find proteins for Q5YXQ1 (Nocardia farcinica (strain IFM 10152))
Go to UniProtKB:  Q5YXQ1
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SIN
Query on SIN

Download SDF File 
Download CCD File 
A, B, C, D
SUCCINIC ACID
C4 H6 O4
KDYFGRWQOYBRFD-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.222 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 52.980α = 90.00
b = 85.670β = 90.00
c = 239.940γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-08-18
    Type: Initial release
  • Version 1.1: 2011-06-09
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance