1B7F

SXL-LETHAL PROTEIN/RNA COMPLEX


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.294 
  • R-Value Work: 0.201 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Structural basis for recognition of the tra mRNA precursor by the Sex-lethal protein.

Handa, N.Nureki, O.Kurimoto, K.Kim, I.Sakamoto, H.Shimura, Y.Muto, Y.Yokoyama, S.

(1999) Nature 398: 579-585

  • DOI: 10.1038/19242
  • Primary Citation of Related Structures:  
    1B7F

  • PubMed Abstract: 
  • The Sex-lethal (Sxl) protein of Drosophila melanogaster regulates alternative splicing of the transformer (tra) messenger RNA precursor by binding to the tra polypyrimidine tract during the sex-determination process. The crystal structure has now been determined at 2 ...

    The Sex-lethal (Sxl) protein of Drosophila melanogaster regulates alternative splicing of the transformer (tra) messenger RNA precursor by binding to the tra polypyrimidine tract during the sex-determination process. The crystal structure has now been determined at 2.6 A resolution of the complex formed between two tandemly arranged RNA-binding domains of the Sxl protein and a 12-nucleotide, single-stranded RNA derived from the tra polypyrimidine tract. The two RNA-binding domains have their beta-sheet platforms facing each other to form a V-shaped cleft. The RNA is characteristically extended and bound in this cleft, where the UGUUUUUUU sequence is specifically recognized by the protein. This structure offers the first insight, to our knowledge, into how a protein binds specifically to a cognate RNA without any intramolecular base-pairing.


    Organizational Affiliation

    Department of Biophysics and Biochemistry, Graduate School of Science, University of Tokyo, Japan.



Macromolecules

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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (SXL-LETHAL PROTEIN)C [auth A],
D [auth B]
168Drosophila melanogasterMutation(s): 1 
Gene Names: SxlSx1CG43770
UniProt
Find proteins for P19339 (Drosophila melanogaster)
Explore P19339 
Go to UniProtKB:  P19339
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP19339
Protein Feature View
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  • Reference Sequence

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Entity ID: 1
MoleculeChainsLengthOrganismImage
RNA (5'-R(P*GP*UP*UP*GP*UP*UP*UP*UP*UP*UP*UP*U)-3')A [auth P],
B [auth Q]
12N/A
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.294 
  • R-Value Work: 0.201 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 77.9α = 90
b = 86.8β = 90
c = 160.4γ = 90
Software Package:
Software NamePurpose
MLPHAREphasing
X-PLORrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 1999-05-03
    Type: Initial release
  • Version 1.1: 2008-04-26
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2011-12-28
    Changes: Advisory
  • Version 1.4: 2021-11-03
    Changes: Database references