ABC transporter binding protein CebE from Streptomyces scabiei in complex with cellotriose

Experimental Data Snapshot

  • Resolution: 1.55 Å
  • R-Value Free: 0.178 
  • R-Value Work: 0.136 

wwPDB Validation   3D Report Full Report

This is version 1.2 of the entry. See complete history


Common scab disease: structural basis of elicitor recognition in pathogenic Streptomyces species.

Kerff, F.Jourdan, S.Francis, I.M.Deflandre, B.Ribeiro Monteiro, S.Stulanovic, N.Loria, R.Rigali, S.

(2023) Microbiol Spectr 11: e0197523-e0197523

  • DOI: https://doi.org/10.1128/spectrum.01975-23
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Common scab is a disease caused by a few Streptomyces species that affects important root and tuber crops including potato, beet, radish, and parsnip, resulting in major economic losses worldwide. In this work, we unveiled the molecular basis of host recognition by these pathogens by solving the structure of the sugar-binding protein CebE of Streptomyces scabiei in complex with cellotriose, the main elicitor of the pathogenic lifestyle of these bacteria. We further revealed that the signaling pathway from CebE-mediated transport of cellotriose is conserved in all pathogenic species except Streptomyces ipomoeae, which causes soft rot disease in sweet potatoes. Our work also provides the structural basis of the uptake of cellobiose and cellotriose in saprophytic Streptomyces species, the first step activating the expression of the enzymatic system degrading the most abundant polysaccharide on earth, cellulose.

  • Organizational Affiliation

    InBioS-Center for Protein Engineering, Institut de Chimie B6a, University of Liège , Liège, Belgium.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Putative secreted cellobiose-binding (Transport system associated)426Streptomyces scabieiMutation(s): 0 
Gene Names: SCAB_57751
Find proteins for C9Z451 (Streptomyces scabiei (strain 87.22))
Explore C9Z451 
Go to UniProtKB:  C9Z451
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupC9Z451
Sequence Annotations
  • Reference Sequence


Entity ID: 2
MoleculeChains Length2D Diagram Glycosylation3D Interactions
Glycosylation Resources
GlyTouCan:  G14338VK
GlyCosmos:  G14338VK
GlyGen:  G14338VK
Biologically Interesting Molecules (External Reference) 1 Unique
Experimental Data & Validation

Experimental Data

Unit Cell:
Length ( Å )Angle ( ˚ )
a = 59.39α = 90
b = 39.43β = 92.38
c = 79.64γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
XSCALEdata scaling

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Not funded--

Revision History  (Full details and data files)

  • Version 1.0: 2023-02-01
    Type: Initial release
  • Version 1.1: 2023-12-27
    Changes: Data collection, Database references
  • Version 1.2: 2024-05-01
    Changes: Database references, Refinement description