6ZTG

Spor protein DedD


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 600 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

SPOR Proteins Are Required for Functionality of Class A Penicillin-Binding Proteins in Escherichia coli.

Pazos, M.Peters, K.Boes, A.Safaei, Y.Kenward, C.Caveney, N.A.Laguri, C.Breukink, E.Strynadka, N.C.J.Simorre, J.P.Terrak, M.Vollmer, W.

(2020) mBio 11

  • DOI: 10.1128/mBio.02796-20
  • Primary Citation of Related Structures:  
    6ZTG

  • PubMed Abstract: 
  • Sporulation-related repeat (SPOR) domains are present in many bacterial cell envelope proteins and are known to bind peptidoglycan. Escherichia coli contains four SPOR proteins, DamX, DedD, FtsN, and RlpA, of which FtsN is essential for septal peptidoglycan synthesis ...

    Sporulation-related repeat (SPOR) domains are present in many bacterial cell envelope proteins and are known to bind peptidoglycan. Escherichia coli contains four SPOR proteins, DamX, DedD, FtsN, and RlpA, of which FtsN is essential for septal peptidoglycan synthesis. DamX and DedD may also play a role in cell division, based on mild cell division defects observed in strains lacking these SPOR domain proteins. Here, we show by nuclear magnetic resonance (NMR) spectroscopy that the periplasmic part of DedD consists of a disordered region followed by a canonical SPOR domain with a structure similar to that of the SPOR domains of FtsN, DamX, and RlpA. The absence of DamX or DedD decreases the functionality of the bifunctional transglycosylase-transpeptidase penicillin-binding protein 1B (PBP1B). DamX and DedD interact with PBP1B and stimulate its glycosyltransferase activity, and DamX also stimulates the transpeptidase activity. DedD also binds to PBP1A and stimulates its glycosyltransferase activity. Our data support a direct role of DamX and DedD in enhancing the activity of PBP1B and PBP1A, presumably during the synthesis of the cell division septum. IMPORTANCE Escherichia coli has four SPOR proteins that bind peptidoglycan, of which FtsN is essential for cell division. DamX and DedD are suggested to have semiredundant functions in cell division based on genetic evidence. Here, we solved the structure of the SPOR domain of DedD, and we show that both DamX and DedD interact with and stimulate the synthetic activity of the peptidoglycan synthases PBP1A and PBP1B, suggesting that these class A PBP enzymes act in concert with peptidoglycan-binding proteins during cell division.


    Organizational Affiliation

    Centre for Bacterial Cell Biology, Biosciences Institute, Newcastle University, Newcastle upon Tyne, United Kingdom Manuel.Pazos@newcastle.ac.uk Waldemar.Vollmer@newcastle.ac.uk.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Cell division protein DedDA193Escherichia coliMutation(s): 0 
Gene Names: dedDBN17_16191
UniProt
Find proteins for P09549 (Escherichia coli (strain K12))
Explore P09549 
Go to UniProtKB:  P09549
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP09549
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 600 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Wellcome TrustUnited Kingdom101824/Z/13/Z
Medical Research Council (MRC, United Kingdom)United KingdomMR/N002679/1
French Infrastructure for Integrated Structural Biology (FRISBI)FranceANR-10-INBS-05-02

Revision History  (Full details and data files)

  • Version 1.0: 2020-11-11
    Type: Initial release