5UIN

X-ray structure of the W305A variant of the FdtF N-formyltransferase from salmonella enteric O60


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.191 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.4 of the entry. See complete history


Literature

Molecular architecture of an N-formyltransferase from Salmonella enterica O60.

Woodford, C.R.Thoden, J.B.Holden, H.M.

(2017) J Struct Biol 200: 267-278

  • DOI: https://doi.org/10.1016/j.jsb.2017.03.002
  • Primary Citation of Related Structures:  
    5UIJ, 5UIK, 5UIL, 5UIM, 5UIN

  • PubMed Abstract: 

    N-formylated sugars are found on the lipopolysaccharides of various pathogenic Gram negative bacteria including Campylobacter jejuni 81116, Francisella tularensis, Providencia alcalifaciens O30, and Providencia alcalifaciens O40. The last step in the biosynthetic pathways for these unusual sugars is catalyzed by N-formyltransferases that utilize N 10 -formyltetrahydrofolate as the carbon source. The substrates are dTDP-linked amino sugars with the functional groups installed at either the C-3' or C-4' positions of the pyranosyl rings. Here we describe a structural and enzymological investigation of the putative N-formyltransferase, FdtF, from Salmonella enterica O60. In keeping with its proposed role in the organism, the kinetic data reveal that the enzyme is more active with dTDP-3-amino-3,6-dideoxy-d-galactose than with dTDP-3-amino-3,6-dideoxy-d-glucose. The structural data demonstrate that the enzyme contains, in addition to the canonical N-formyltransferase fold, an ankyrin repeat moiety that houses a second dTDP-sugar binding pocket. This is only the second time an ankyrin repeat has been shown to be involved in small molecule binding. The research described herein represents the first structural analysis of a sugar N-formyltransferase that specifically functions on dTDP-3-amino-3,6-dideoxy-d-galactose in vivo and thus adds to our understanding of these intriguing enzymes.


  • Organizational Affiliation

    Department of Biochemistry, University of Wisconsin, Madison, WI 53706, United States.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Formyltransferase
A, B
405Salmonella entericaMutation(s): 2 
Gene Names: fdtF
UniProt
Find proteins for U3GK13 (Salmonella enterica)
Explore U3GK13 
Go to UniProtKB:  U3GK13
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupU3GK13
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
FON
Query on FON

Download Ideal Coordinates CCD File 
E [auth A],
K [auth B]
N-{[4-({[(6R)-2-amino-5-formyl-4-oxo-1,4,5,6,7,8-hexahydropteridin-6-yl]methyl}amino)phenyl]carbonyl}-L-glutamic acid
C20 H23 N7 O7
VVIAGPKUTFNRDU-OLZOCXBDSA-N
TYD
Query on TYD

Download Ideal Coordinates CCD File 
C [auth A],
J [auth B]
THYMIDINE-5'-DIPHOSPHATE
C10 H16 N2 O11 P2
UJLXYODCHAELLY-XLPZGREQSA-N
CL
Query on CL

Download Ideal Coordinates CCD File 
D [auth A]CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
NA
Query on NA

Download Ideal Coordinates CCD File 
F [auth A]
G [auth A]
H [auth A]
I [auth B]
L [auth B]
F [auth A],
G [auth A],
H [auth A],
I [auth B],
L [auth B],
M [auth B]
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.191 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 72.467α = 90
b = 59.457β = 96.25
c = 107.599γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
SAINTdata reduction
SADABSdata scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesGM115921

Revision History  (Full details and data files)

  • Version 1.0: 2017-03-22
    Type: Initial release
  • Version 1.1: 2017-09-20
    Changes: Author supporting evidence
  • Version 1.2: 2018-01-03
    Changes: Database references
  • Version 1.3: 2020-01-01
    Changes: Author supporting evidence
  • Version 1.4: 2023-10-04
    Changes: Data collection, Database references, Derived calculations, Refinement description