2L54

Solution structure of the Zalpha domain mutant of ADAR1 (N43A,Y47A)


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 140 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Alternate rRNA secondary structures as regulators of translation

Feng, S.Li, H.Zhao, J.Pervushin, K.Lowenhaupt, K.Schwartz, T.U.Droge, P.

(2011) Nat.Struct.Mol.Biol. 18: 169-176

  • DOI: 10.1038/nsmb.1962

  • PubMed Abstract: 
  • Structural dynamics of large molecular assemblies are intricately linked to function. For ribosomes, macromolecular changes occur especially during mRNA translation and involve participation of ribosomal RNA. Without suitable probes specific to RNA s ...

    Structural dynamics of large molecular assemblies are intricately linked to function. For ribosomes, macromolecular changes occur especially during mRNA translation and involve participation of ribosomal RNA. Without suitable probes specific to RNA secondary structure, however, elucidation of more subtle dynamic ribosome structure-function relationships, especially in vivo, remains challenging. Here we report that the Z-DNA- and Z-RNA-binding domain Zα, derived from the human RNA editing enzyme ADAR1-L, binds with high stability to specific rRNA segments of Escherichia coli and human ribosomes. Zα impaired in Z-RNA recognition does not associate with ribosomes. Notably, Zα(ADAR1)-ribosome interaction blocks translation in vitro and in vivo, with substantial physiological consequences. Our study shows that ribosomes can be targeted by a protein that specifically recognizes an alternate rRNA secondary structure, and suggests a new mechanism of translational regulation on the ribosome.


    Organizational Affiliation

    Division of Genomics and Genetics, School of Biological Sciences, Nanyang Technological University, Singapore, Singapore.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Double-stranded RNA-specific adenosine deaminase
A
63Homo sapiensMutation(s): 2 
Gene Names: ADAR (ADAR1, DSRAD, G1P1, IFI4)
EC: 3.5.4.37
Find proteins for P55265 (Homo sapiens)
Go to Gene View: ADAR
Go to UniProtKB:  P55265
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 140 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 
  • Olderado: 2L54 Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-01-12
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance