3L48

Crystal structure of the C-terminal domain of the PapC usher


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.200 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural Homology between the C-Terminal Domain of the PapC Usher and Its Plug.

Ford, B.Rego, A.T.Ragan, T.J.Pinkner, J.Dodson, K.Driscoll, P.C.Hultgren, S.Waksman, G.

(2010) J.Bacteriol. 192: 1824-1831

  • DOI: 10.1128/JB.01677-09
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • P pili are extracellular appendages responsible for the targeting of uropathogenic Escherichia coli to the kidney. They are assembled by the chaperone-usher (CU) pathway of pilus biogenesis involving two proteins, the periplasmic chaperone PapD and t ...

    P pili are extracellular appendages responsible for the targeting of uropathogenic Escherichia coli to the kidney. They are assembled by the chaperone-usher (CU) pathway of pilus biogenesis involving two proteins, the periplasmic chaperone PapD and the outer membrane assembly platform, PapC. Many aspects of the structural biology of the Pap CU pathway have been elucidated, except for the C-terminal domain of the PapC usher, the structure of which is unknown. In this report, we identify a stable and folded fragment of the C-terminal region of the PapC usher and determine its structure using both X-ray crystallography and nuclear magnetic resonance (NMR) spectroscopy. These structures reveal a beta-sandwich fold very similar to that of the plug domain, a domain of PapC obstructing its translocation domain. This structural similarity suggests similar functions in usher-mediated pilus biogenesis, playing out at different stages of the process. This structure paves the way for further functional analysis targeting surfaces common to both the plug and the C-terminal domain of PapC.


    Organizational Affiliation

    Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, Missouri 63110, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Outer membrane usher protein PapC
A, B, C, D, E
94Escherichia coli (strain UTI89 / UPEC)Mutation(s): 0 
Gene Names: papC
Find proteins for Q1R2W8 (Escherichia coli (strain UTI89 / UPEC))
Go to UniProtKB:  Q1R2W8
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CO
Query on CO

Download SDF File 
Download CCD File 
A, C
COBALT (II) ION
Co
XLJKHNWPARRRJB-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.200 
  • Space Group: P 42 21 2
Unit Cell:
Length (Å)Angle (°)
a = 100.936α = 90.00
b = 100.936β = 90.00
c = 89.540γ = 90.00
Software Package:
Software NamePurpose
Blu-Icedata collection
XDSdata reduction
PHENIXrefinement
PHASERphasing
XSCALEdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-03-02
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance