4I86

Crystal structure of PilZ domain of CeSA from cellulose synthesizing bacterium


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.098 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.214 

wwPDB Validation 3D Report Full Report


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Literature

The c-di-GMP recognition mechanism of the PilZ domain of bacterial cellulose synthase subunit A

Fujiwara, T.Komoda, K.Sakurai, N.Tajima, K.Tanaka, I.Yao, M.

(2013) Biochem.Biophys.Res.Commun. 431: 802-807

  • DOI: 10.1016/j.bbrc.2012.12.103

  • PubMed Abstract: 
  • In some Proteobacteria and Firmicutes such as Pseudomonas aeruginosa, Vibrio cholerae, Xanthomonas campestris, and Clostridium difficile, cyclic dimeric guanosine monophosphate (c-di-GMP) is known to regulate cellular processes, including motility, b ...

    In some Proteobacteria and Firmicutes such as Pseudomonas aeruginosa, Vibrio cholerae, Xanthomonas campestris, and Clostridium difficile, cyclic dimeric guanosine monophosphate (c-di-GMP) is known to regulate cellular processes, including motility, biofilm formation, and virulence, as a second messenger. Cellulose production in Acetobacter xylinum, a model organism of cellulose biosynthesis, also depends on by cellular c-di-GMP level. In cellulose-synthesizing bacteria, a terminal complex localized in the cell membrane synthesizes cellulose and regulates the production of cellulose sensed by c-di-GMP. Although previous studies indicated that the PilZ domain conserved in cellulose synthase subunit A (CeSA) was part of a receptor for c-di-GMP, the recognition mechanism by PilZ domain of CeSA remains unclear. In the present study, we studied the interaction between c-di-GMP and the PilZ domain of CeSA from a structural viewpoint. First, we solved the crystal structure of the PilZ domain of CeSA from A. xylinum (AxCeSA-PilZ) at 2.1Å resolution. Then, comparison of the sequence and structure of AxCeSA-PilZ to those of known structures of PilZ, such as VCA0042, PP4397, and PA4608, indicated the involvement of Lys573 and Arg643 of AxCeSA-PilZ in the recognition of c-di-GMP besides the RxxxR motif. Finally, the binding characteristics of c-di-GMP to AxCeSA-PilZ and mutants were determined with isothermal titration calorimetry, indicating that the residues corresponding to Lys573 and Arg643 in AxCeSA-PilZ generally contribute to the binding of c-di-GMP to PilZ.


    Organizational Affiliation

    Graduate School of Life Science, Hokkaido University, Kita-10, Nishi-8, Kita-ku, Sapporo 060-0810, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cellulose synthase 1
A, B
111Komagataeibacter xylinusMutation(s): 0 
Gene Names: acsAB (acsA, acsB)
Find proteins for P0CW87 (Komagataeibacter xylinus)
Go to UniProtKB:  P0CW87
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.098 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.214 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 39.360α = 90.00
b = 59.500β = 90.00
c = 78.153γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
PHENIXphasing
XDSdata reduction
XDSdata scaling
PHENIXmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-04-03
    Type: Initial release