Crystal structure of FurB from M. tuberculosis- a Zinc uptake regulator

Experimental Data Snapshot

  • Resolution: 2.70 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.230 
  • R-Value Observed: 0.230 

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Crystal structure and function of the zinc uptake regulator FurB from Mycobacterium tuberculosis.

Lucarelli, D.Russo, S.Garman, E.Milano, A.Meyer-Klaucke, W.Pohl, E.

(2007) J Biol Chem 282: 9914-9922

  • DOI: https://doi.org/10.1074/jbc.M609974200
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Members of the ferric/zinc uptake regulator (Fur/Zur) family are the central metal-dependent regulator proteins in many Gram-negative and -positive bacteria. They are responsible for the control of a wide variety of basic physiological processes and the expression of important virulence factors in human pathogens. Therefore, Fur has gathered significant interest as a potential target for novel antibiotics. Here we report the crystal structure of FurB from Mycobacterium tuberculosis at a resolution of 2.7A, and we present biochemical and spectroscopic data that allow us to propose the functional role of this protein. Although the overall fold of FurB with an N-terminal DNA binding domain and a C-terminal dimerization domain is conserved among the Zur/Fur family, large differences in the spatial arrangement of the two domains with respect to each other can be observed. The biochemical and spectroscopic analysis presented here reveals that M. tuberculosis FurB is Zn(II)-dependent and is likely to control genes involved in the bacterial zinc uptake. The combination of the structural, spectroscopic, and biochemical results enables us to determine the structural basis for functional differences in this important family of bacterial regulators.

  • Organizational Affiliation

    European Molecular Biology Laboratory, Hamburg Outstation, Notkestrasse 85, D-22603 Hamburg, Germany.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
probable Zinc uptake regulation protein FurB131Mycobacterium tuberculosisMutation(s): 0 
Gene Names: furB
Find proteins for P9WN85 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Explore P9WN85 
Go to UniProtKB:  P9WN85
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP9WN85
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.70 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.230 
  • R-Value Observed: 0.230 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 51.6α = 90
b = 51.6β = 90
c = 133.4γ = 90
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
GCLIENTdata collection
XDSdata reduction
XSCALEdata scaling
SHELXEmodel building

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2007-02-13
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Advisory, Derived calculations, Version format compliance
  • Version 1.3: 2017-10-18
    Changes: Refinement description
  • Version 1.4: 2023-12-27
    Changes: Data collection, Database references, Derived calculations