Crystal structure of human AIM2 PYD domain with MBP fusion

Experimental Data Snapshot

  • Resolution: 2.07 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.182 
  • R-Value Observed: 0.184 

wwPDB Validation   3D Report Full Report

This is version 2.0 of the entry. See complete history


Structure of the Absent in Melanoma 2 (AIM2) Pyrin Domain Provides Insights into the Mechanisms of AIM2 Autoinhibition and Inflammasome Assembly.

Jin, T.Perry, A.Smith, P.Jiang, J.Xiao, T.S.

(2013) J Biol Chem 288: 13225-13235

  • DOI: 10.1074/jbc.M113.468033
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • AIM2 binds dsDNA and associates with ASC through their PYDs to form an inflammasome.

    Organizational Affiliation

    Structural Immunobiology Unit, Laboratory of Immunology, NIAID, National Institutes of Health, Bethesda, MD 20892-0430, USA.

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Maltose-binding periplasmic protein, Interferon-inducible protein AIM2A489Escherichia coli O157:H7Homo sapiens
This entity is chimeric
Mutation(s): 5 
Gene Names: AIM2ECs5017malEMBPZ5632
UniProt & NIH Common Fund Data Resources
Find proteins for O14862 (Homo sapiens)
Explore O14862 
Go to UniProtKB:  O14862
PHAROS:  O14862
Find proteins for P0AEY0 (Escherichia coli O157:H7)
Explore P0AEY0 
Go to UniProtKB:  P0AEY0
Protein Feature View
  • Reference Sequence


Entity ID: 2
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranoseB4N/A Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G87171PZ
GlyCosmos:  G87171PZ
GlyGen:  G87171PZ
Biologically Interesting Molecules (External Reference) 1 Unique
Entity ID: 2
IDChainsNameType/Class2D Diagram3D Interactions
Query on PRD_900010
Balpha-maltotetraoseOligosaccharide /  Substrate analog Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Resolution: 2.07 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.182 
  • R-Value Observed: 0.184 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 61.599α = 90
b = 91.934β = 90
c = 100.281γ = 90
Software Package:
Software NamePurpose
Blu-Icedata collection
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-01-16
    Type: Initial release
  • Version 1.1: 2013-02-13
    Changes: Database references, Structure summary
  • Version 1.2: 2013-06-05
    Changes: Database references
  • Version 1.3: 2017-08-02
    Changes: Refinement description, Source and taxonomy
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Database references, Derived calculations, Non-polymer description, Structure summary