2N00

NMR Solution structure of AIM2 PYD from Mus musculus


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

The NMR solution structure of AIM2 PYD domain from Mus musculus reveals a distinct alpha 2-alpha 3 helix conformation from its human homologues

Hou, X.Niu, X.

(2015) Biochem.Biophys.Res.Commun. 461: 396-400

  • DOI: 10.1016/j.bbrc.2015.04.046

  • PubMed Abstract: 
  • The inflammasome is a key component of the innate immune system providing the initial defense against invading organisms. Failure of inflammasome formation is the main reason for many innate and acquired immune diseases. Cytosolic protein absent in m ...

    The inflammasome is a key component of the innate immune system providing the initial defense against invading organisms. Failure of inflammasome formation is the main reason for many innate and acquired immune diseases. Cytosolic protein absent in melanoma 2 (AIM2) has been reported to play an essential role in double-stranded DNA (dsDNA) sensing and inflammasome formation in response to viruses or bacteria infection. The N-terminal pyrin domain (PYD) of AIM2 interacts with the ASC PYD domain, and then recruits downstream proteins to assemble the AIM2 inflammasome. The molecular mechanisms of PYD mediated signaling remain elusive as limited structural information on PYD family. Herein, we characterized the solution structure of mouse AIM2 PYD domain by NMR spectroscopy, and compared it with the crystal structures of its two human homologues. The comparison shows mAIM2 PYD adopts a unique α2-α3 helix conformation distinct from its human homologues, but similar to the pyrin domain of human NLRP10/PYNOD, which belongs to another family. In addition, the aggregation of mAIM2 PYD domain, with the increased salt concentration, reveals that both the charge surface and hydrophobic interaction play important roles in the self-association of mAIM2 PYD.


    Organizational Affiliation

    Beijing Nuclear Magnetic Resonance Center, Peking University, Beijing, China; College of Chemistry and Molecular Engineering, Peking University, Beijing, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Interferon-inducible protein AIM2
A
95Mus musculusGene Names: Aim2 (Gm1313, Ifi210)
Find proteins for Q91VJ1 (Mus musculus)
Go to UniProtKB:  Q91VJ1
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2015-03-01 
  • Released Date: 2015-05-27 
  • Deposition Author(s): Hou, X., Niu, X.

Revision History 

  • Version 1.0: 2015-05-27
    Type: Initial release