4APB

Crystal structure of Mycobacterium tuberculosis fumarase (Rv1098c) S318C in complex with fumarate


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.94 Å
  • R-Value Free: 0.174 
  • R-Value Work: 0.147 
  • R-Value Observed: 0.149 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 2.1 of the entry. See complete history


Literature

Conformational Changes Upon Ligand Binding in the Essential Class II Fumarase Rv1098C from Mycobacterium Tuberculosis.

Mechaly, A.E.Haouz, A.Miras, I.Barilone, N.Weber, P.Shepard, W.Alzari, P.M.Bellinzoni, M.

(2012) FEBS Lett 586: 1606

  • DOI: https://doi.org/10.1016/j.febslet.2012.04.034
  • Primary Citation of Related Structures:  
    4ADL, 4ADM, 4APA, 4APB

  • PubMed Abstract: 

    rv1098c, an essential gene in Mycobacterium tuberculosis, codes for a class II fumarase. We describe here the crystal structure of Rv1098c in complex with l-malate, fumarate or the competitive inhibitor meso-tartrate. The models reveal that substrate binding promotes the closure of the active site through conformational changes involving the catalytic SS-loop and the C-terminal domain, which likely represents a general feature of this enzyme superfamily. Analysis of ligand-enzyme interactions as well as site-directed mutagenesis suggest Ser318 as one of the two acid-base catalysts.


  • Organizational Affiliation

    Institut Pasteur, Unité de Microbiologie Structurale and CNRS-UMR3528, 25 rue du Dr. Roux, 75724 Paris cedex 15, France.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
FUMARATE HYDRATASE CLASS II
A, B, C, D
474Mycobacterium tuberculosis H37RvMutation(s): 1 
EC: 4.2.1.2
UniProt
Find proteins for P9WN93 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Explore P9WN93 
Go to UniProtKB:  P9WN93
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP9WN93
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.94 Å
  • R-Value Free: 0.174 
  • R-Value Work: 0.147 
  • R-Value Observed: 0.149 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 97.997α = 90
b = 98.736β = 90
c = 188.171γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
XDSdata reduction
SCALAdata scaling
MOLREPphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-04-25
    Type: Initial release
  • Version 1.1: 2012-06-06
    Changes: Other
  • Version 1.2: 2012-07-18
    Changes: Atomic model, Derived calculations, Non-polymer description
  • Version 2.0: 2023-11-15
    Changes: Atomic model, Data collection, Database references, Derived calculations, Other
  • Version 2.1: 2023-12-20
    Changes: Refinement description