Receptor-binding domain of Proteus mirabilis Uroepithelial Cell Adhesin UcaD21-211

Experimental Data Snapshot

  • Resolution: 1.70 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.198 

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Structures of two fimbrial adhesins, AtfE and UcaD, from the uropathogen Proteus mirabilis.

Jiang, W.Ubhayasekera, W.Pearson, M.M.Knight, S.D.

(2018) Acta Crystallogr D Struct Biol 74: 1053-1062

  • DOI: https://doi.org/10.1107/S2059798318012391
  • Primary Citation of Related Structures:  
    6H1Q, 6H1X, 6H2L

  • PubMed Abstract: 

    The important uropathogen Proteus mirabilis encodes a record number of chaperone/usher-pathway adhesive fimbriae. Such fimbriae, which are used for adhesion to cell surfaces/tissues and for biofilm formation, are typically important virulence factors in bacterial pathogenesis. Here, the structures of the receptor-binding domains of the tip-located two-domain adhesins UcaD (1.5 Å resolution) and AtfE (1.58 Å resolution) from two P. mirabilis fimbriae (UCA/NAF and ATF) are presented. The structures of UcaD and AtfE are both similar to the F17G type of tip-located fimbrial receptor-binding domains, and the structures are very similar despite having only limited sequence similarity. These structures represent an important step towards a molecular-level understanding of P. mirabilis fimbrial adhesins and their roles in the complex pathogenesis of urinary-tract infections.

  • Organizational Affiliation

    Department of Microbiology and Immunology, University of Michigan Medical School, 5641 Medical Science Building II, 1150 West Medical Center Drive, Ann Arbor, MI 48109-0620, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Putative fimbrial adhesin198Proteus mirabilis HI4320Mutation(s): 0 
Gene Names: PMI0533
Find proteins for B4EV65 (Proteus mirabilis (strain HI4320))
Explore B4EV65 
Go to UniProtKB:  B4EV65
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupB4EV65
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.70 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.198 
  • Space Group: I 41 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 73.35α = 90
b = 73.35β = 90
c = 153.106γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
Aimlessdata scaling

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Swedish Research CouncilSweden--

Revision History  (Full details and data files)

  • Version 1.0: 2018-11-07
    Type: Initial release
  • Version 1.1: 2018-11-14
    Changes: Data collection, Database references