YfdE from Escherichia coli

Experimental Data Snapshot

  • Resolution: 2.12 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.189 
  • R-Value Observed: 0.191 

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This is version 1.5 of the entry. See complete history


Function and X-Ray crystal structure of Escherichia coli YfdE.

Mullins, E.A.Sullivan, K.L.Kappock, T.J.

(2013) PLoS One 8: e67901-e67901

  • DOI: https://doi.org/10.1371/journal.pone.0067901
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Many food plants accumulate oxalate, which humans absorb but do not metabolize, leading to the formation of urinary stones. The commensal bacterium Oxalobacter formigenes consumes oxalate by converting it to oxalyl-CoA, which is decarboxylated by oxalyl-CoA decarboxylase (OXC). OXC and the class III CoA-transferase formyl-CoA:oxalate CoA-transferase (FCOCT) are widespread among bacteria, including many that have no apparent ability to degrade or to resist external oxalate. The EvgA acid response regulator activates transcription of the Escherichia coli yfdXWUVE operon encoding YfdW (FCOCT), YfdU (OXC), and YfdE, a class III CoA-transferase that is ~30% identical to YfdW. YfdW and YfdU are necessary and sufficient for oxalate-induced protection against a subsequent acid challenge; neither of the other genes has a known function. We report the purification, in vitro characterization, 2.1-Å crystal structure, and functional assignment of YfdE. YfdE and UctC, an orthologue from the obligate aerobe Acetobacter aceti, perform the reversible conversion of acetyl-CoA and oxalate to oxalyl-CoA and acetate. The annotation of YfdE as acetyl-CoA:oxalate CoA-transferase (ACOCT) expands the scope of metabolic pathways linked to oxalate catabolism and the oxalate-induced acid tolerance response. FCOCT and ACOCT active sites contain distinctive, conserved active site loops (the glycine-rich loop and the GNxH loop, respectively) that appear to encode substrate specificity.

  • Organizational Affiliation

    Department of Biochemistry, Purdue University, West Lafayette, Indiana, United States of America.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Uncharacterized protein YfdE
A, B, C, D, E
A, B, C, D, E, F
401Escherichia coli K-12Mutation(s): 0 
Gene Names: yfdEb2371JW2368
Find proteins for P76518 (Escherichia coli (strain K12))
Explore P76518 
Go to UniProtKB:  P76518
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP76518
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

Unit Cell:
Length ( Å )Angle ( ˚ )
a = 111.422α = 90
b = 79.527β = 99.95
c = 276.189γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PDB_EXTRACTdata extraction
HKL-2000data collection
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-05-22
    Type: Initial release
  • Version 1.1: 2013-07-31
    Changes: Database references
  • Version 1.2: 2013-08-21
    Changes: Database references
  • Version 1.3: 2014-03-26
    Changes: Structure summary
  • Version 1.4: 2017-11-15
    Changes: Refinement description
  • Version 1.5: 2023-09-20
    Changes: Data collection, Database references, Refinement description