3F9I

Crystal structure of 3-ketoacyl-(acyl-carrier-protein) reductase Rickettsia prowazekii


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.25 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.213 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of 3-ketoacyl-(acyl-carrier-protein) reductase from Rickettsia prowazekii at 2.25 A resolution.

Subramanian, S.Abendroth, J.Phan, I.Q.Olsen, C.Staker, B.L.Napuli, A.Van Voorhis, W.C.Stacy, R.Myler, P.J.

(2011) Acta Crystallogr.,Sect.F 67: 1118-1122

  • DOI: 10.1107/S1744309111030673

  • PubMed Abstract: 
  • Rickettsia prowazekii, a parasitic Gram-negative bacterium, is in the second-highest biodefense category of pathogens of the National Institute of Allergy and Infectious Diseases, but only a handful of structures have been deposited in the PDB for th ...

    Rickettsia prowazekii, a parasitic Gram-negative bacterium, is in the second-highest biodefense category of pathogens of the National Institute of Allergy and Infectious Diseases, but only a handful of structures have been deposited in the PDB for this bacterium; to date, all of these have been solved by the SSGCID. Owing to its small genome (about 800 protein-coding genes), it relies on the host for many basic biosynthetic processes, hindering the identification of potential antipathogenic drug targets. However, like many bacteria and plants, its metabolism does depend upon the type II fatty-acid synthesis (FAS) pathway for lipogenesis, whereas the predominant form of fatty-acid biosynthesis in humans is via the type I pathway. Here, the structure of the third enzyme in the FAS pathway, 3-ketoacyl-(acyl-carrier-protein) reductase, is reported at a resolution of 2.25 Å. Its fold is highly similar to those of the existing structures from some well characterized pathogens, such as Mycobacterium tuberculosis and Burkholderia pseudomallei, but differs significantly from the analogous mammalian structure. Hence, drugs known to target the enzymes of pathogenic bacteria may serve as potential leads against Rickettsia, which is responsible for spotted fever and typhus and is found throughout the world.


    Organizational Affiliation

    Seattle Structural Genomics Center for Infectious Disease (SSGCID), USA. sandhya.subramanian@sbri.org




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
3-oxoacyl-[acyl-carrier-protein] reductase
A, B
249Rickettsia prowazekii (strain Madrid E)Mutation(s): 0 
Gene Names: fabG
EC: 1.1.1.100
Find proteins for P50941 (Rickettsia prowazekii (strain Madrid E))
Go to UniProtKB:  P50941
Experimental Data & Validation

Experimental Data

Unit Cell:
Length (Å)Angle (°)
a = 74.160α = 90.00
b = 74.160β = 90.00
c = 183.010γ = 90.00
Software Package:
Software NamePurpose
XSCALEdata scaling
PHASERphasing
StructureStudiodata collection
REFMACrefinement
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-11-25
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2011-09-21
    Type: Database references