2QF4

High resolution structure of the major periplasmic domain from the cell shape-determining filament MreC (orthorhombic form)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.2 Å
  • R-Value Free: 0.167 
  • R-Value Work: 0.144 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

High-resolution Structure of the Major Periplasmic Domain from the Cell Shape-determining Filament MreC.

Lovering, A.L.Strynadka, N.C.

(2007) J.Mol.Biol. 372: 1034-1044

  • DOI: 10.1016/j.jmb.2007.07.022
  • Primary Citation of Related Structures:  2QF5

  • PubMed Abstract: 
  • Bacterial cell shape is dictated by the cell wall, a plastic structure that must adapt to growth and division whilst retaining its function as a selectively permeable barrier. The modulation of cell wall structure is achieved by a variety of enzymati ...

    Bacterial cell shape is dictated by the cell wall, a plastic structure that must adapt to growth and division whilst retaining its function as a selectively permeable barrier. The modulation of cell wall structure is achieved by a variety of enzymatic functions, all of which must be spatially regulated in a precise manner. The membrane-spanning essential protein MreC has been identified as the central hub in this process, linking the bacterial cytoskeleton to a variety of cell wall-modifying enzymes. Additionally, MreC can form filaments, believed to run perpendicularly to the membrane. We present here the 1.2 A resolution crystal structure of the major periplasmic domain of Streptococcus pneumoniae MreC. The protein shows a novel arrangement of two barrel-shaped domains, one of which shows homology to a known protein oligomerization motif, with the other resembling a catalytic domain from a bacterial protease. We discuss the implications of these results for MreC function, and detail the structural features of the molecule that may be responsible for the binding of partner proteins.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology and Center for Blood Research, The University of British Columbia, Vancouver, Canada.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cell shape determining protein MreC
A, B
172Streptococcus pneumoniae (strain ATCC BAA-255 / R6)Gene Names: mreC
Find proteins for Q8DMY2 (Streptococcus pneumoniae (strain ATCC BAA-255 / R6))
Go to UniProtKB:  Q8DMY2
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
EDO
Query on EDO

Download SDF File 
Download CCD File 
A
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.2 Å
  • R-Value Free: 0.167 
  • R-Value Work: 0.144 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 50.247α = 90.00
b = 70.362β = 90.00
c = 89.763γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
SOLVEphasing
ADSCdata collection
MOSFLMdata reduction
PDB_EXTRACTdata extraction
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-08-07
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Source and taxonomy, Version format compliance