Lectin domain of E. coli F9 pilus adhesin FmlH

Experimental Data Snapshot

  • Resolution: 2.09 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.199 

wwPDB Validation   3D Report Full Report

This is version 2.0 of the entry. See complete history


Inflammation-Induced Adhesin-Receptor Interaction Provides a Fitness Advantage to Uropathogenic E. coli during Chronic Infection.

Conover, M.S.Ruer, S.Taganna, J.Kalas, V.De Greve, H.Pinkner, J.S.Dodson, K.W.Remaut, H.Hultgren, S.J.

(2016) Cell Host Microbe 20: 482-492

  • DOI: https://doi.org/10.1016/j.chom.2016.08.013
  • Primary Citation of Related Structures:  
    5LNE, 5LNG

  • PubMed Abstract: 

    Uropathogenic E. coli (UPEC) is the dominant cause of urinary tract infections, clinically described as cystitis. UPEC express CUP pili, which are extracellular fibers tipped with adhesins that bind mucosal surfaces of the urinary tract. Here we identify the role of the F9/Yde/Fml pilus for UPEC persistence in the inflamed urothelium. The Fml adhesin FmlH binds galactose β1-3 N-acetylgalactosamine found in core-1 and -2 O-glycans. Deletion of fmlH had no effect on UPEC virulence in an acute mouse model of cystitis. However, FmlH provided a fitness advantage during chronic cystitis, which is manifested as persistent bacteriuria, high bladder bacterial burdens, and chronic inflammation. In situ binding confirmed that FmlH bound avidly to the inflamed, but not the naive bladder. In accordance with its pathogenic profile, vaccination with FmlH significantly protected mice from chronic cystitis. Thus, UPEC employ separate CUP pili to adapt to the rapidly changing niche during bladder infection.

  • Organizational Affiliation

    Department of Molecular Microbiology and Center for Women's Infectious Disease Research, Washington University School of Medicine, St. Louis, MO 63110, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Putative Fml fimbrial adhesin FmlD
A, B, C, D
164Escherichia coliMutation(s): 0 
Gene Names: fmlDUTI89_C1716
Find proteins for A0A0H2V7F6 (Escherichia coli O6:H1 (strain CFT073 / ATCC 700928 / UPEC))
Explore A0A0H2V7F6 
Go to UniProtKB:  A0A0H2V7F6
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A0H2V7F6
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.09 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.199 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 52.71α = 66.9
b = 52.73β = 82.28
c = 62.82γ = 84.1
Software Package:
Software NamePurpose
XDSdata reduction
xia2data scaling

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
National Institutes of HealthUnited StatesDK064540

Revision History  (Full details and data files)

  • Version 1.0: 2016-10-05
    Type: Initial release
  • Version 1.1: 2016-10-26
    Changes: Database references
  • Version 2.0: 2018-01-31
    Changes: Atomic model, Author supporting evidence