7PQ8

Crystal structure of Campylobacter jejuni DsbA1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.33 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.176 

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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 DsbAA202Campylobacter jejuniMutation(s): 0 
Gene Names: 
UniProt
Find proteins for A0A1J6PBD5 (Campylobacter jejuni)
Explore A0A1J6PBD5 
Go to UniProtKB:  A0A1J6PBD5
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PG4 (Subject of Investigation/LOI)
Query on PG4

Download Ideal Coordinates CCD File 
B [auth A]TETRAETHYLENE GLYCOL
C8 H18 O5
UWHCKJMYHZGTIT-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

Unit Cell:
Length ( Å )Angle ( ˚ )
a = 34.489α = 90
b = 57.67β = 90
c = 93.778γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XDSdata scaling
MOLREPphasing

Structure Validation

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Ligand Structure Quality Assessment  



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Polish National Science CentrePolandUMO-2016/21/D/NZ1/02777
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