1OIA

U1A rnp domain 1-95

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.194 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history. 


Literature

Crystal Structure of the RNA-Binding Domain of the U1 Small Nuclear Ribonucleoprotein A

Nagai, K., Oubridge, C., Jessen, T.H., Li, J., Evans, P.R.

(1990) Nature 348: 515

  • DOI: 10.1038/348515a0
  • Primary Citation of Related Structures:  
    1OIA

  • PubMed Abstract: 

    • The crystal structure of the RNA binding domain of the U1 small nuclear ribonucleoprotein A, which forms part of the ribonucleoprotein complex involved in the excision of introns, has been solved. It contains a four-stranded beta sheet and two alpha helices ...

    The crystal structure of the RNA binding domain of the U1 small nuclear ribonucleoprotein A, which forms part of the ribonucleoprotein complex involved in the excision of introns, has been solved. It contains a four-stranded beta sheet and two alpha helices. The highly conserved segments designated RNP1 and RNP2 lie side by side on the middle two beta strands. U1 RNA binding studies of mutant proteins suggest that the RNA binds to the four-stranded beta sheet and to the flexible loops on one end.

    Organizational Affiliation: 

    MRC Laboratory of Molecular Biology, Cambridge, UK.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
U1 SMALL NUCLEAR RIBONUCLEOPROTEIN AA, B95Homo sapiensMutation(s): 0 
Gene Names: SNRPA
UniProt & NIH Common Fund Data Resources
Find proteins for P09012 (Homo sapiens)
Explore P09012 
Go to UniProtKB:  P09012
PHAROS:  P09012
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP09012
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.194 
  • Space Group: I 41 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 148.125α = 90
b = 148.125β = 90
c = 148.125γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
WEISdata reduction
SCALAdata scaling
MLPHAREphasing

Structure Validation

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Entry History 

Deposition Data

  • Deposited Date: 2003-06-12 
  • Released Date: 2003-06-26 
    • Deposition Author(s): Nagai, K., Evans, P.R.
  • This entry supersedes: 1NRC

Revision History  (Full details and data files)

  • Version 1.0: 2003-06-26
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance