Crystal structure of Cj0485 dehydrogenase

Experimental Data Snapshot

  • Resolution: 1.60 Å
  • R-Value Free: 0.205 
  • R-Value Work: 0.174 
  • R-Value Observed: 0.176 

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This is version 1.2 of the entry. See complete history


The gastrointestinal pathogen Campylobacter jejuni metabolizes sugars with potential help from commensal Bacteroides vulgatus.

Garber, J.M.Nothaft, H.Pluvinage, B.Stahl, M.Bian, X.Porfirio, S.Enriquez, A.Butcher, J.Huang, H.Glushka, J.Line, E.Gerlt, J.A.Azadi, P.Stintzi, A.Boraston, A.B.Szymanski, C.M.

(2020) Commun Biol 3: 2-2

  • DOI: https://doi.org/10.1038/s42003-019-0727-5
  • Primary Citation of Related Structures:  
    6DRR, 6DS1

  • PubMed Abstract: 

    Although the gastrointestinal pathogen Campylobacter jejuni was considered asaccharolytic, >50% of sequenced isolates possess an operon for L-fucose utilization. In C. jejuni NCTC11168, this pathway confers L-fucose chemotaxis and competitive colonization advantages in the piglet diarrhea model, but the catabolic steps remain unknown. Here we solved the putative dehydrogenase structure, resembling FabG of Burkholderia multivorans. The C. jejuni enzyme, FucX, reduces L-fucose and D-arabinose in vitro and both sugars are catabolized by fuc-operon encoded enzymes. This enzyme alone confers chemotaxis to both sugars in a non-carbohydrate-utilizing C. jejuni strain. Although C. jejuni lacks fucosidases, the organism exhibits enhanced growth in vitro when co-cultured with Bacteroides vulgatus, suggesting scavenging may occur. Yet, when excess amino acids are available, C. jejuni prefers them to carbohydrates, indicating a metabolic hierarchy exists. Overall this study increases understanding of nutrient metabolism by this pathogen, and identifies interactions with other gut microbes.

  • Organizational Affiliation

    Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, GA, 30602, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Short-chain dehydrogenase
A, B
271Campylobacter jejuniMutation(s): 0 
Gene Names: A0L11_03550BKM79_02435CRM98_01005
Find proteins for Q0PB28 (Campylobacter jejuni subsp. jejuni serotype O:2 (strain ATCC 700819 / NCTC 11168))
Explore Q0PB28 
Go to UniProtKB:  Q0PB28
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ0PB28
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.60 Å
  • R-Value Free: 0.205 
  • R-Value Work: 0.174 
  • R-Value Observed: 0.176 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 100.659α = 90
b = 108.78β = 90
c = 105.638γ = 90
Software Package:
Software NamePurpose
HKL-2000data reduction
HKL-2000data scaling
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2019-07-10
    Type: Initial release
  • Version 1.1: 2020-07-29
    Changes: Database references
  • Version 1.2: 2023-10-11
    Changes: Data collection, Database references, Refinement description