8OO3

X-ray structure of the adduct formed upon reaction of cisplatin with human angiogenin after 5 days soaking


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.76 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.243 

Starting Model: experimental
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Literature

Cisplatin binding to angiogenin protein: new molecular pathways and targets for the drug's anticancer activity.

Ferraro, G.Sanfilippo, V.Chiaverini, L.Satriano, C.Marzo, T.Merlino, A.La Mendola, D.

(2023) Dalton Trans 52: 9058-9067

  • DOI: https://doi.org/10.1039/d3dt01517c
  • Primary Citation of Related Structures:  
    8OO3, 8OO4

  • PubMed Abstract: 

    Cisplatin (CisPt), a platinum-based chemotherapeutic widely used in the treatment of various cancers, has multiple mechanisms of action, including nuclear DNA (nDNA) and mitochondrial DNA (mDNA) damage and cytoskeletal perturbations affecting, in turn, the membrane transporter activity. CisPt binding to proteins and enzymes may modulate its biochemical mechanism of action and is associated with cancer cell resistance to the drug. In this work, we investigate the interaction between cisplatin and angiogenin (Ang), a protein strongly expressed in many types of cancer and a potent angiogenic factor. The adduct formed upon reaction of CisPt with Ang (Ang@CisPt) was characterized by X-ray crystallography to evidence the exact platination site and by UV-visible (UV-vis) absorption and circular dichroism (CD) spectroscopies to shed light on any possible change in the protein conformation. Furthermore, high-resolution electrospray ionization (ESI) mass spectrometry was utilized to evaluate the Ang : CisPt stoichiometry of the Ang@CisPt adduct. The effect of the Ang@CisPt adduct on a prostate cancer cell line (PC-3) was tested by colorimetric assays in terms of cell viability, at both levels of nuclear and mitochondrial damage, and reactive oxygen species (ROS) production. Cellular imaging by laser scanning confocal microscopy (LSM) was utilized to scrutinize the cytoskeleton actin reorganization and the lysosome and mitochondria organelle perturbation. These studies highlight the possibility of new molecular pathways and targets for CisPt activity.


  • Organizational Affiliation

    Department of Chemical Sciences, University of Naples Federico II, via Cintia 21, I-80126 Napoli, Italy. antonello.merlino@unina.it.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
AngiogeninA [auth AAA]123Homo sapiensMutation(s): 0 
Gene Names: ANGRNASE5
EC: 3.1.27
UniProt & NIH Common Fund Data Resources
Find proteins for P03950 (Homo sapiens)
Explore P03950 
Go to UniProtKB:  P03950
PHAROS:  P03950
GTEx:  ENSG00000214274 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP03950
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.76 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.243 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 85.32α = 90
b = 37.48β = 90
c = 38.33γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
autoPROCdata reduction
autoPROCdata scaling
PHASERphasing

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Not funded--

Revision History  (Full details and data files)

  • Version 1.0: 2023-07-12
    Type: Initial release
  • Version 1.1: 2024-01-24
    Changes: Data collection, Source and taxonomy