216D

CRYSTAL STRUCTURES OF THE B-FORM DNA-RNA CHIMER (5'-D(*IP*)-R(*CP*)-D(*IP*CP*IP*CP*IP*C)-3') COMPLEXED WITH DISTAMYCIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.73 Å
  • R-Value Work: 0.152 
  • R-Value Observed: 0.152 

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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Crystal structures of B-form DNA-RNA chimers complexed with distamycin.

Chen, X.Ramakrishnan, B.Sundaralingam, M.

(1995) Nat Struct Biol 2: 733-735

  • DOI: 10.1038/nsb0995-733
  • Primary Citation of Related Structures:  
    216D, 217D

  • PubMed Abstract: 
  • Two DNA-RNA chimers, complexed with DNA minor groove binding drugs, have been observed to adopt the B-form conformation for the first time. Thus, the RNA duplex may assume the B-DNA conformation when interacting with drugs, peptides or proteins.


    Organizational Affiliation

    Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada V8W 3P6.



Macromolecules

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Entity ID: 1
MoleculeChainsLengthOrganismImage
DNA/RNA (5'-D(*IP*)-R(*CP*)-D(*IP*CP*IP*CP*IP*C)-3')A 8N/A
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
DMY
Query on DMY

Download Ideal Coordinates CCD File 
B [auth A]DISTAMYCIN A
C22 H27 N9 O4
UPBAOYRENQEPJO-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

Download Ideal Coordinates CCD File 
C [auth A]MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.73 Å
  • R-Value Work: 0.152 
  • R-Value Observed: 0.152 
  • Space Group: P 41 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 27.92α = 90
b = 27.92β = 90
c = 57.7γ = 90
Software Package:
Software NamePurpose
X-PLORrefinement

Structure Validation

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Ligand Structure Quality Assessment 



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1996-01-29
    Type: Initial release
  • Version 1.1: 2008-05-22
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance