7PQF

Crystal structure of Campylobacter jejuni DsbA2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.82 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.199 
  • R-Value Observed: 0.201 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Interplay between DsbA1, DsbA2 and C8J_1298 Periplasmic Oxidoreductases of Campylobacter jejuni and Their Impact on Bacterial Physiology and Pathogenesis.

Banas, A.M.Bocian-Ostrzycka, K.M.Dunin-Horkawicz, S.Ludwiczak, J.Wilk, P.Orlikowska, M.Wyszynska, A.Dabrowska, M.Plichta, M.Spodzieja, M.Polanska, M.A.Malinowska, A.Jagusztyn-Krynicka, E.K.

(2021) Int J Mol Sci 22

  • DOI: 10.3390/ijms222413451
  • Primary Citation of Related Structures:  
    7PQ7, 7PQ8, 7PQF

  • PubMed Abstract: 
  • The bacterial proteins of the Dsb family catalyze the formation of disulfide bridges between cysteine residues that stabilize protein structures and ensure their proper functioning. Here, we report the detailed analysis of the Dsb pathway of Campylobacter jejuni ...

    The bacterial proteins of the Dsb family catalyze the formation of disulfide bridges between cysteine residues that stabilize protein structures and ensure their proper functioning. Here, we report the detailed analysis of the Dsb pathway of Campylobacter jejuni . The oxidizing Dsb system of this pathogen is unique because it consists of two monomeric DsbAs (DsbA1 and DsbA2) and one dimeric bifunctional protein (C8J_1298). Previously, we showed that DsbA1 and C8J_1298 are redundant. Here, we unraveled the interaction between the two monomeric DsbAs by in vitro and in vivo experiments and by solving their structures and found that both monomeric DsbAs are dispensable proteins. Their structures confirmed that they are homologs of EcDsbL. The slight differences seen in the surface charge of the proteins do not affect the interaction with their redox partner. Comparative proteomics showed that several respiratory proteins, as well as periplasmic transport proteins, are targets of the Dsb system. Some of these, both donors and electron acceptors, are essential elements of the C. jejuni respiratory process under oxygen-limiting conditions in the host intestine. The data presented provide detailed information on the function of the C. jejuni Dsb system, identifying it as a potential target for novel antibacterial molecules.


    Organizational Affiliation

    Department of Bacterial Genetics, Faculty of Biology, Institute of Microbiology, University of Warsaw, 02-096 Warsaw, Poland.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Thiol:disulfide interchange protein DsbA/DsbLA204Campylobacter jejuniMutation(s): 0 
Gene Names: 
UniProt
Find proteins for A0A1J6UFJ6 (Campylobacter jejuni)
Explore A0A1J6UFJ6 
Go to UniProtKB:  A0A1J6UFJ6
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

Unit Cell:
Length ( Å )Angle ( ˚ )
a = 43.491α = 90
b = 43.491β = 90
c = 196.312γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
PHENIXrefinement
XDSdata reduction
XDSdata scaling
PHASERphasing

Structure Validation

View Full Validation Report




Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Foundation for Polish SciencePolandFACILITY/2017-4/6
Polish National Science CentrePoland2015/17/B/NZ1/00230

Revision History  (Full details and data files)

  • Version 1.0: 2021-12-29
    Type: Initial release
  • Version 1.1: 2022-01-05
    Changes: Database references