6CJ4

CRYSTAL STRUCTURE OF PROTEIN CITE FROM MYCOBACTERIUM TUBERCULOSIS IN COMPLEX WITH MAGNESIUM AND ACETOACETATE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.73 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.183 
  • R-Value Observed: 0.184 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

An essential bifunctional enzyme inMycobacterium tuberculosisfor itaconate dissimilation and leucine catabolism.

Wang, H.Fedorov, A.A.Fedorov, E.V.Hunt, D.M.Rodgers, A.Douglas, H.L.Garza-Garcia, A.Bonanno, J.B.Almo, S.C.de Carvalho, L.P.S.

(2019) Proc Natl Acad Sci U S A 116: 15907-15913

  • DOI: 10.1073/pnas.1906606116
  • Primary Citation of Related Structures:  
    6AQ4, 6ARB, 6AS5, 6CHU, 6CJ4, 6CJ3

  • PubMed Abstract: 
  • Mycobacterium tuberculosis (Mtb) is the etiological agent of tuberculosis. One-fourth of the global population is estimated to be infected with Mtb, accounting for ∼1.3 million deaths in 2017. As part of the immune response to Mtb infection, macrophages produce metabolites with the purpose of inhibiting or killing the bacterial cell ...

    Mycobacterium tuberculosis (Mtb) is the etiological agent of tuberculosis. One-fourth of the global population is estimated to be infected with Mtb, accounting for ∼1.3 million deaths in 2017. As part of the immune response to Mtb infection, macrophages produce metabolites with the purpose of inhibiting or killing the bacterial cell. Itaconate is an abundant host metabolite thought to be both an antimicrobial agent and a modulator of the host inflammatory response. However, the exact mode of action of itaconate remains unclear. Here, we show that Mtb has an itaconate dissimilation pathway and that the last enzyme in this pathway, Rv2498c, also participates in l-leucine catabolism. Our results from phylogenetic analysis, in vitro enzymatic assays, X-ray crystallography, and in vivo Mtb experiments, identified Mtb Rv2498c as a bifunctional β-hydroxyacyl-CoA lyase and that deletion of the rv2498c gene from the Mtb genome resulted in attenuation in a mouse infection model. Altogether, this report describes an itaconate resistance mechanism in Mtb and an l-leucine catabolic pathway that proceeds via an unprecedented ( R )-3-hydroxy-3-methylglutaryl-CoA (HMG-CoA) stereospecific route in nature.


    Related Citations: 
    • Discovery of a novel stereospecific beta-hydroxyacyl-CoA lyase/thioesterase shared by three metabolic pathways in Mycobacterium tuberculosis
      Wang, H., Fedorov, A.A., Fedorov, E.V., Hunt, D.M., Rodgers, A., Garza-Garcia, A., Bonanno, J.B., Almo, S.C.
      (2018) Biorxiv --: --

    Organizational Affiliation

    Mycobacterial Metabolism and Antibiotic Research Laboratory, The Francis Crick Institute, London NW1 1AT, United Kingdom; luiz.carvalho@crick.ac.uk.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Citrate lyase subunit beta-like protein A281Mycobacterium tuberculosis CDC1551Mutation(s): 0 
Gene Names: citEMT2573
EC: 4.1
Find proteins for P9WPE0 (Mycobacterium tuberculosis (strain CDC 1551 / Oshkosh))
Explore P9WPE0 
Go to UniProtKB:  P9WPE0
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
AAE
Query on AAE

Download Ideal Coordinates CCD File 
A
ACETOACETIC ACID
C4 H6 O3
WDJHALXBUFZDSR-UHFFFAOYSA-N
 Ligand Interaction
ACT
Query on ACT

Download Ideal Coordinates CCD File 
A
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
MG
Query on MG

Download Ideal Coordinates CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.73 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.183 
  • R-Value Observed: 0.184 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 91.673α = 90
b = 91.673β = 90
c = 221.386γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling
PHENIXphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2018-08-01
    Type: Initial release
  • Version 1.1: 2019-02-13
    Changes: Data collection, Database references
  • Version 1.2: 2019-07-31
    Changes: Data collection, Database references
  • Version 1.3: 2019-08-21
    Changes: Data collection, Database references
  • Version 1.4: 2020-07-29
    Changes: Derived calculations, Structure summary