1IMS

MOLECULAR STRUCTURE OF THE HALOGENATED ANTI-CANCER DRUG IODODOXORUBICIN COMPLEXED WITH D(TGTACA) AND D(CGATCG)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Work: 0.180 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Molecular structure of the halogenated anti-cancer drug iododoxorubicin complexed with d(TGTACA) and d(CGATCG).

Berger, I.Su, L.Spitzner, J.R.Kang, C.Burke, T.G.Rich, A.

(1995) Nucleic Acids Res. 23: 4488-4494

  • Primary Citation of Related Structures:  1IMR

  • PubMed Abstract: 
  • 4'-Deoxy-4'-iododoxorubicin, a halogenated anthracycline derivative, is an anticancer agent currently under Phase II clinical trials. In preclinical studies, it has demonstrated significantly reduced levels of cardiotoxicity compared to currently emp ...

    4'-Deoxy-4'-iododoxorubicin, a halogenated anthracycline derivative, is an anticancer agent currently under Phase II clinical trials. In preclinical studies, it has demonstrated significantly reduced levels of cardiotoxicity compared to currently employed anthracyclines. It also has modified pharmacological properties resulting in an altered spectrum of experimental antitumor activity. The iodine atom at the 4' position of the sugar ring reduces the basicity and enhances the lipophilicity of this compound as compared to related anthracycline drugs. We report here single crystal X-ray diffraction studies of the complexes of 4'-deoxy-4'-iododoxorubicin with the hexanucleotide duplex sequences d(TGTACA) and d(CGATCG) at 1.6 and 1.5 A, respectively. The iodine substituent does not alter the geometry of intercalation as compared to previously solved anthracycline complexes, but appears to markedly affect the solvent environment of the structures. This could have consequences for the interaction of this drug with DNA and DNA binding proteins in cells.


    Organizational Affiliation

    Department of Biology, Massachusetts Institute of Technology, Cambridge 02139, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsLengthOrganism
DNA (5'-D(*CP*GP*AP*TP*CP*G)-3')A6N/A
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
DM7
Query on DM7

Download SDF File 
Download CCD File 
A
4'-DEOXY-4'-IODODOXORUBICIN
4'-DEOXY-4'-IODOADRIAMYCIN
C27 H29 I N O10
PDQGEKGUTOTUNV-TZSSRYMLSA-O
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Work: 0.180 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 27.730α = 90.00
b = 27.730β = 90.00
c = 52.490γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1996-04-04
    Type: Initial release
  • Version 1.1: 2008-05-22
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance