2XFM

Complex structure of the MIWI Paz domain bound to methylated single stranded RNA


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: LOWEST ENERGY 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Recognition of 2'-O-Methylated 3'-End of Pirna by the Paz Domain of a Piwi Protein.

Simon, B.Kirkpatrick, J.P.Eckhardt, S.Reuter, M.Rocha, E.A.Andrade-Navarro, M.A.Sehr, P.Pillai, R.S.Carlomagno, T.

(2011) Structure 19: 172

  • DOI: 10.1016/j.str.2010.11.015
  • Primary Citation of Related Structures:  
    2XFM

  • PubMed Abstract: 
  • Piwi proteins are germline-specific Argonautes that associate with small RNAs called Piwi-interacting RNAs (piRNAs), and together with these RNAs are implicated in transposon silencing. The PAZ domain of Argonaute proteins recognizes the 3'-end of the RNA, which in the case of piRNAs is invariably modified with a 2'-O-methyl group ...

    Piwi proteins are germline-specific Argonautes that associate with small RNAs called Piwi-interacting RNAs (piRNAs), and together with these RNAs are implicated in transposon silencing. The PAZ domain of Argonaute proteins recognizes the 3'-end of the RNA, which in the case of piRNAs is invariably modified with a 2'-O-methyl group. Here, we present the solution structure of the PAZ domain from the mouse Piwi protein, MIWI, in complex with an 8-mer piRNA mimic. The methyl group is positioned in a hydrophobic cavity made of conserved amino acids from strand β7 and helix α3, where it is contacted by the side chain of methionine-382. Our structure is similar to that of Ago-PAZ, but subtle differences illustrate how the PAZ domain has evolved to accommodate distinct 3' ends from a variety of RNA substrates.


    Organizational Affiliation

    Structural and Computational Biology Unit, European Molecular Biology Laboratory, Meyerhofstrasse 1, D-69117 Heidelberg, Germany.



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PIWI-LIKE PROTEIN 1A150Mus musculusMutation(s): 0 
Gene Names: Piwil1Miwi
EC: 3.1.26
Find proteins for Q9JMB7 (Mus musculus)
Explore Q9JMB7 
Go to UniProtKB:  Q9JMB7
Protein Feature View
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  • Reference Sequence
  • Find similar nucleic acids by:  Sequence   |   Structure
  • Entity ID: 2
    MoleculeChainsLengthOrganismImage
    5'-R(*AP*CP*CP*GP*AP*CP*UP*(OMU)P)-3'B8synthetic construct
    Experimental Data & Validation

    Experimental Data

    • Method: SOLUTION NMR
    • Conformers Calculated: 100 
    • Conformers Submitted: 10 
    • Selection Criteria: LOWEST ENERGY 
    • OLDERADO: 2XFM Olderado

    Structure Validation

    View Full Validation Report



    Entry History 

    Deposition Data

    Revision History  (Full details and data files)

    • Version 1.0: 2011-01-26
      Type: Initial release
    • Version 1.1: 2011-10-26
      Changes: Database references, Derived calculations, Version format compliance