1RNA

CRYSTALLOGRAPHIC STRUCTURE OF AN RNA HELIX: [U(U-A)6A]2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.25 Å
  • R-Value Observed: 0.131 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Crystallographic structure of an RNA helix: [U(UA)6A]2.

Dock-Bregeon, A.C.Chevrier, B.Podjarny, A.Johnson, J.de Bear, J.S.Gough, G.R.Gilham, P.T.Moras, D.

(1989) J Mol Biol 209: 459-474

  • DOI: 10.1016/0022-2836(89)90010-7
  • Primary Citation of Related Structures:  
    1RNA

  • PubMed Abstract: 
  • The crystallographic structure of the synthetic oligoribonucleotide, U(UA)6A, has been solved at 2.25 A resolution. The crystallographic refinement permitted the identification of 91 solvent molecules, with a final agreement factor of 13%. The molecule is a dimer of 14 base-pairs and shows the typical features of an A-type helix ...

    The crystallographic structure of the synthetic oligoribonucleotide, U(UA)6A, has been solved at 2.25 A resolution. The crystallographic refinement permitted the identification of 91 solvent molecules, with a final agreement factor of 13%. The molecule is a dimer of 14 base-pairs and shows the typical features of an A-type helix. However, the presence of two kinks causes a divergence from a straight helix. The observed deformation, which is stabilized by a few hydrogen bonds in the crystal packing, could be due to the relatively high (35 degrees C) temperature of crystallization. The complete analysis of the structure is presented. It includes the stacking geometries, the backbone conformation and the solvation.


    Related Citations: 
    • High Resolution Structure of the RNA Duplex [u(u-A)6a]2
      Dock-Bregeon, A.C., Chevier, B., Podjarny, A., Moras, D., De Bear, J.S., Gough, G.R., Gilham, P.T., Johnson, J.E.
      (1988) Nature 335: 375

    Organizational Affiliation

    Institut de Biologie Moléculaire et Cellulaire de C.N.R.S., Strasbourg, France.



Macromolecules

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Entity ID: 1
MoleculeChainsLengthOrganismImage
RNA (5'-R(*UP*UP*AP*UP*AP*UP*AP*UP*AP*UP*AP*UP*AP*A)-3')A, B 14N/A
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.25 Å
  • R-Value Observed: 0.131 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 34.11α = 90
b = 44.61β = 90
c = 49.11γ = 90
Software Package:
Software NamePurpose
NUCLSQrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1991-04-15
    Type: Initial release
  • Version 1.1: 2008-05-22
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2018-04-18
    Changes: Data collection