6M7K

Structure of mouse RECON (AKR1C13) in complex with cyclic AMP-AMP-GMP (cAAG)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.10 Å
  • R-Value Free: 0.157 
  • R-Value Work: 0.143 
  • R-Value Observed: 0.143 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Bacterial cGAS-like enzymes synthesize diverse nucleotide signals.

Whiteley, A.T.Eaglesham, J.B.de Oliveira Mann, C.C.Morehouse, B.R.Lowey, B.Nieminen, E.A.Danilchanka, O.King, D.S.Lee, A.S.Y.Mekalanos, J.J.Kranzusch, P.J.

(2019) Nature 567: 194-199

  • DOI: https://doi.org/10.1038/s41586-019-0953-5
  • Primary Citation of Related Structures:  
    6E0K, 6E0L, 6E0M, 6E0N, 6E0O, 6M7K

  • PubMed Abstract: 

    Cyclic dinucleotides (CDNs) have central roles in bacterial homeostasis and virulence by acting as nucleotide second messengers. Bacterial CDNs also elicit immune responses during infection when they are detected by pattern-recognition receptors in animal cells. Here we perform a systematic biochemical screen for bacterial signalling nucleotides and discover a large family of cGAS/DncV-like nucleotidyltransferases (CD-NTases) that use both purine and pyrimidine nucleotides to synthesize a diverse range of CDNs. A series of crystal structures establish CD-NTases as a structurally conserved family and reveal key contacts in the enzyme active-site lid that direct purine or pyrimidine selection. CD-NTase products are not restricted to CDNs and also include an unexpected class of cyclic trinucleotide compounds. Biochemical and cellular analyses of CD-NTase signalling nucleotides demonstrate that these cyclic di- and trinucleotides activate distinct host receptors and thus may modulate the interaction of both pathogens and commensal microbiota with their animal and plant hosts.


  • Organizational Affiliation

    Department of Microbiology, Harvard Medical School, Boston, MA, USA.


Macromolecules

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Aldo-keto reductase family 1 member C13321Mus musculusMutation(s): 3 
Gene Names: Akr1c13
EC: 1.1.1
UniProt
Find proteins for Q8VC28 (Mus musculus)
Explore Q8VC28 
Go to UniProtKB:  Q8VC28
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8VC28
Sequence Annotations
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  • Reference Sequence

Find similar nucleic acids by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChains LengthOrganismImage
cyclic AMP-AMP-GMP3synthetic construct
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.10 Å
  • R-Value Free: 0.157 
  • R-Value Work: 0.143 
  • R-Value Observed: 0.143 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 50.597α = 90
b = 57.07β = 90
c = 110.76γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2019-02-20
    Type: Initial release
  • Version 1.1: 2019-03-06
    Changes: Data collection, Database references
  • Version 1.2: 2019-03-27
    Changes: Data collection, Database references
  • Version 1.3: 2023-10-11
    Changes: Data collection, Database references, Derived calculations, Refinement description