4C51

Crystal Structure of the Catalase-Peroxidase (KatG) R418L mutant from Mycobacterium Tuberculosis


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.10 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.160 
  • R-Value Observed: 0.163 

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Ligand Structure Quality Assessment 


This is version 1.4 of the entry. See complete history


Literature

Access Channel Residues Ser315 and Asp137 in Mycobacterium Tuberculosis Catalase-Peroxidase (Katg) Control Peroxidatic Activation of the Pro-Drug Isoniazid.

Zhao, X.Hersleth, H.P.Zhu, J.Andersson, K.K.Magliozzo, R.S.

(2013) Chem Commun (Camb) 49: 11650

  • DOI: https://doi.org/10.1039/c3cc47022a
  • Primary Citation of Related Structures:  
    4C50, 4C51

  • PubMed Abstract: 

    Peroxidatic activation of the anti-tuberculosis pro-drug isoniazid by Mycobacterium tuberculosis catalase-peroxidase (KatG) is regulated by gating residues of a heme access channel. The steric restriction at the bottleneck of this channel is alleviated by replacement of residue Asp137 with Ser, according to crystallographic and kinetic studies.


  • Organizational Affiliation

    Department of Chemistry, Brooklyn College and The Graduate Center of The City University of New York, 2900 Bedford Avenue, Brooklyn, NY 11210, USA. rmaglioz@brooklyn.cuny.edu.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
CATALASE-PEROXIDASE
A, B
740Mycobacterium tuberculosis H37RvMutation(s): 1 
EC: 1.11.1.21
UniProt
Find proteins for P9WIE5 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Explore P9WIE5 
Go to UniProtKB:  P9WIE5
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP9WIE5
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.10 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.160 
  • R-Value Observed: 0.163 
  • Space Group: P 42 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 150.69α = 90
b = 150.69β = 90
c = 157.12γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-11-13
    Type: Initial release
  • Version 1.1: 2013-11-27
    Changes: Database references
  • Version 1.2: 2019-10-30
    Changes: Advisory, Data collection, Derived calculations, Other
  • Version 1.3: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Derived calculations, Structure summary
  • Version 1.4: 2023-12-20
    Changes: Data collection, Database references, Refinement description, Structure summary