4BJQ

Crystal structure of E. coli penicillin binding protein 3, domain V88- S165


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.211 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Crystal Structure of Penicillin-Binding Protein 3 (Pbp3) from Escherichia Coli.

Sauvage, E.Derouaux, A.Fraipont, C.Joris, M.Herman, R.Rocaboy, M.Schloesser, M.Dumas, J.Kerff, F.Nguyen-Disteche, M.Charlier, P.

(2014) PLoS One 9: 98042

  • DOI: 10.1371/journal.pone.0098042
  • Primary Citation of Related Structures:  
    4BJP, 4BJQ

  • PubMed Abstract: 
  • In Escherichia coli, penicillin-binding protein 3 (PBP3), also known as FtsI, is a central component of the divisome, catalyzing cross-linking of the cell wall peptidoglycan during cell division. PBP3 is mainly periplasmic, with a 23 residues cytoplasmic tail and a single transmembrane helix ...

    In Escherichia coli, penicillin-binding protein 3 (PBP3), also known as FtsI, is a central component of the divisome, catalyzing cross-linking of the cell wall peptidoglycan during cell division. PBP3 is mainly periplasmic, with a 23 residues cytoplasmic tail and a single transmembrane helix. We have solved the crystal structure of a soluble form of PBP3 (PBP3(57-577)) at 2.5 Å revealing the two modules of high molecular weight class B PBPs, a carboxy terminal module exhibiting transpeptidase activity and an amino terminal module of unknown function. To gain additional insight, the PBP3 Val88-Ser165 subdomain (PBP3(88-165)), for which the electron density is poorly defined in the PBP3 crystal, was produced and its structure solved by SAD phasing at 2.1 Å. The structure shows a three dimensional domain swapping with a β-strand of one molecule inserted between two strands of the paired molecule, suggesting a possible role in PBP3(57-577) dimerization.


    Organizational Affiliation

    Centre d'Ingénierie des Protéines, Université de Liège, Institut de Physique B5a et Institut de Chimie B6a, Sart Tilman, Liège, Belgium.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PENICILLIN BINDING PROTEIN TRANSPEPTIDASE DOMAIN PROTEIN
A, B, C, D, E, F, G, H
A, B, C, D, E, F, G, H
78Escherichia coliMutation(s): 0 
EC: 2.4.1.129
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.211 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 56.048α = 89.13
b = 55.959β = 76.49
c = 82.285γ = 65.99
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XSCALEdata scaling
SHELXphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-05-07
    Type: Initial release
  • Version 1.1: 2014-06-11
    Changes: Database references