5TNQ

Crystal structure of the E153Q mutant of the CFTR inhibitory factor Cif containing the adducted (R)-Styrene oxide hydrolysis intermediate

  • Classification: HYDROLASE
  • Organism(s): Pseudomonas aeruginosa UCBPP-PA14
  • Expression System: Escherichia coli
  • Mutation(s): Yes 

  • Deposited: 2016-10-14 Released: 2017-10-11 
  • Deposition Author(s): Hvorecny, K.L., Madden, D.R.
  • Funding Organization(s): National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID), National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS), National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease (NIH/NIDDK), National Institutes of Health/National Institute of Environmental Health Sciences (NIH/NIEHS)

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.183 
  • R-Value Work: 0.161 
  • R-Value Observed: 0.163 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history. 


Literature

Active-Site Flexibility and Substrate Specificity in a Bacterial Virulence Factor: Crystallographic Snapshots of an Epoxide Hydrolase.

Hvorecny, K.L., Bahl, C.D., Kitamura, S., Lee, K.S.S., Hammock, B.D., Morisseau, C., Madden, D.R.

(2017) Structure 25: 697-707.e4

  • DOI: https://doi.org/10.1016/j.str.2017.03.002
  • Primary Citation of Related Structures:  
    5TND, 5TNE, 5TNF, 5TNG, 5TNH, 5TNI, 5TNJ, 5TNK, 5TNL, 5TNM, 5TNN, 5TNP, 5TNQ, 5TNR, 5TNS

  • PubMed Abstract: 

    • Pseudomonas aeruginosa secretes an epoxide hydrolase with catalytic activity that triggers degradation of the cystic fibrosis transmembrane conductance regulator (CFTR) and perturbs other host defense networks. Targets of this CFTR inhibitory factor (Cif) are largely unknown, but include an epoxy-fatty acid ...

    Pseudomonas aeruginosa secretes an epoxide hydrolase with catalytic activity that triggers degradation of the cystic fibrosis transmembrane conductance regulator (CFTR) and perturbs other host defense networks. Targets of this CFTR inhibitory factor (Cif) are largely unknown, but include an epoxy-fatty acid. In this class of signaling molecules, chirality can be an important determinant of physiological output and potency. Here we explore the active-site chemistry of this two-step α/β-hydrolase and its implications for an emerging class of virulence enzymes. In combination with hydrolysis data, crystal structures of 15 trapped hydroxyalkyl-enzyme intermediates reveal the stereochemical basis of Cif's substrate specificity, as well as its regioisomeric and enantiomeric preferences. The structures also reveal distinct sets of conformational changes that enable the active site to expand dramatically in two directions, accommodating a surprising array of potential physiological epoxide targets. These new substrates may contribute to Cif's diverse effects in vivo, and thus to the success of P. aeruginosa and other pathogens during infection.

    Organizational Affiliation: 

    Department of Biochemistry and Cell Biology, Geisel School of Medicine, Dartmouth College, Hanover, NH 03755, USA. Electronic address: drm0001@dartmouth.edu.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CFTR inhibitory factorA [auth C],
B [auth D],
C [auth A],
D [auth B]		301Pseudomonas aeruginosa UCBPP-PA14Mutation(s): 1 
Gene Names: PA14_26090
UniProt
Find proteins for A0A0H2ZD27 (Pseudomonas aeruginosa (strain UCBPP-PA14))
Explore A0A0H2ZD27 
Go to UniProtKB:  A0A0H2ZD27
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A0H2ZD27
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FEH
Query on FEH
Download Ideal Coordinates CCD File 
E [auth C],
F [auth D],
G [auth A],
H [auth B]		(1R)-1-phenylethane-1,2-diol
C8 H10 O2
PWMWNFMRSKOCEY-QMMMGPOBSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.183 
  • R-Value Work: 0.161 
  • R-Value Observed: 0.163 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 168.173α = 90
b = 83.979β = 100.55
c = 89.169γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XDSdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



View more in-depth experimental data
Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)United StatesR01AI091699
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesP20GM113132
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesP30GM106394
National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease (NIH/NIDDK)United StatesU24DK097154
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesT32GM008704
National Institutes of Health/National Institute of Environmental Health Sciences (NIH/NIEHS)United StatesR01ES002710
National Institutes of Health/National Institute of Environmental Health Sciences (NIH/NIEHS)United StatesP42ES004699
National Institutes of Health/National Institute of Environmental Health Sciences (NIH/NIEHS)United StatesK99ES024806
National Institutes of Health/National Institute of Environmental Health Sciences (NIH/NIEHS)United StatesR00ES024806

Revision History  (Full details and data files)

  • Version 1.0: 2017-10-11
    Type: Initial release
  • Version 1.1: 2022-04-13
    Changes: Author supporting evidence, Database references