3QGB

Crystal structure of FBF-2 R288Y mutant in complex with gld-1 FBEa


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.168 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Stacking interactions in PUF-RNA complexes.

Koh, Y.Y.Wang, Y.Qiu, C.Opperman, L.Gross, L.Tanaka Hall, T.M.Wickens, M.

(2011) Rna 17: 718-727

  • DOI: 10.1261/rna.2540311
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Stacking interactions between amino acids and bases are common in RNA-protein interactions. Many proteins that regulate mRNAs interact with single-stranded RNA elements in the 3' UTR (3'-untranslated region) of their targets. PUF proteins are exempla ...

    Stacking interactions between amino acids and bases are common in RNA-protein interactions. Many proteins that regulate mRNAs interact with single-stranded RNA elements in the 3' UTR (3'-untranslated region) of their targets. PUF proteins are exemplary. Here we focus on complexes formed between a Caenorhabditis elegans PUF protein, FBF, and its cognate RNAs. Stacking interactions are particularly prominent and involve every RNA base in the recognition element. To assess the contribution of stacking interactions to formation of the RNA-protein complex, we combine in vivo selection experiments with site-directed mutagenesis, biochemistry, and structural analysis. Our results reveal that the identities of stacking amino acids in FBF affect both the affinity and specificity of the RNA-protein interaction. Substitutions in amino acid side chains can restrict or broaden RNA specificity. We conclude that the identities of stacking residues are important in achieving the natural specificities of PUF proteins. Similarly, in PUF proteins engineered to bind new RNA sequences, the identity of stacking residues may contribute to "target" versus "off-target" interactions, and thus be an important consideration in the design of proteins with new specificities.


    Organizational Affiliation

    Department of Biochemistry, University of Wisconsin, Madison, Wisconsin 53706, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Fem-3 mRNA-binding factor 2
A
413Caenorhabditis elegansMutation(s): 1 
Gene Names: fbf-2
Find proteins for Q09312 (Caenorhabditis elegans)
Go to UniProtKB:  Q09312
Entity ID: 2
MoleculeChainsLengthOrganism
5'-R(*UP*GP*UP*GP*CP*CP*AP*UP*A)-3'B9N/A
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.168 
  • Space Group: P 61
Unit Cell:
Length (Å)Angle (°)
a = 96.809α = 90.00
b = 96.809β = 90.00
c = 100.895γ = 120.00
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data scaling
SERGUIdata collection
PHASERphasing
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-03-23
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance