4GCF

Room temperature X-ray diffraction study of a 6-fold molar excess of a cisplatin/carboplatin mixture binding to HEWL, Dataset 4


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.50 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.170 
  • R-Value Observed: 0.172 

Starting Model: experimental
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This is version 1.3 of the entry. See complete history


Literature

The crystal structure analysis of the relative binding of cisplatin and carboplatin in a mixture with histidine in a protein studied at 100 and 300 K with repeated X-ray irradiation.

Helliwell, J.R.Tanley, S.W.

(2013) Acta Crystallogr D Biol Crystallogr 69: 121-125

  • DOI: https://doi.org/10.1107/S090744491204423X
  • Primary Citation of Related Structures:  
    4GCB, 4GCC, 4GCD, 4GCE, 4GCF

  • PubMed Abstract: 

    The anticancer agents cisplatin and carboplatin bind to histidine in a protein. This crystal structure study at data-collection temperatures of 100 and 300 K examines their relative binding affinities to a histidine side chain and the effect of a high X-ray radiation dose of up to ∼1.8 MGy on the stability of the subsequent protein-Pt adducts. Cisplatin binding is visible at the histidine residue, but carboplatin binding is not. Five refined X-ray crystal structures are presented: one at 100 K as a reference and four at 300 K. The diffraction resolutions are 1.8, 2.0, 2.8, 2.9 and 3.5 Å.


  • Organizational Affiliation

    School of Chemistry, University of Manchester, England, UK. john.helliwell@manchester.ac.uk


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Lysozyme C129Gallus gallusMutation(s): 0 
EC: 3.2.1.17
UniProt
Find proteins for P00698 (Gallus gallus)
Explore P00698 
Go to UniProtKB:  P00698
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP00698
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.50 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.170 
  • R-Value Observed: 0.172 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 79.87α = 90
b = 79.87β = 90
c = 37.768γ = 90
Software Package:
Software NamePurpose
APEXdata collection
PHASERphasing
REFMACrefinement
APEXdata reduction

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-01-02
    Type: Initial release
  • Version 1.1: 2013-01-23
    Changes: Database references
  • Version 1.2: 2023-09-13
    Changes: Data collection, Database references, Derived calculations, Refinement description
  • Version 1.3: 2024-10-30
    Changes: Structure summary