2GOM

Crystal structure of Efb-C from Staphylococcus aureus


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.25 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.211 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

A structural basis for complement inhibition by Staphylococcus aureus.

Hammel, M.Sfyroera, G.Ricklin, D.Magotti, P.Lambris, J.D.Geisbrecht, B.V.

(2007) Nat.Immunol. 8: 430-437

  • DOI: 10.1038/ni1450
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • To provide insight into bacterial suppression of complement-mediated immunity, we present here structures of a bacterial complement inhibitory protein, both free and bound to its complement target. The 1.25-A structure of the complement component C3- ...

    To provide insight into bacterial suppression of complement-mediated immunity, we present here structures of a bacterial complement inhibitory protein, both free and bound to its complement target. The 1.25-A structure of the complement component C3-inhibitory domain of Staphylococcus aureus extracellular fibrinogen-binding protein (Efb-C) demonstrated a helical motif involved in complement regulation, whereas the 2.2-A structure of Efb-C bound to the C3d domain of human C3 allowed insight into the recognition of complement proteins by invading pathogens. Our structure-function studies provided evidence for a previously unrecognized mode of complement inhibition whereby Efb-C binds to native C3 and alters the solution conformation of C3 in a way that renders it unable to participate in successful 'downstream' activation of the complement response.


    Organizational Affiliation

    Division of Cell Biology and Biophysics, School of Biological Sciences, University of Missouri at Kansas City, Kansas City, Missouri 64110, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Fibrinogen-binding protein
A, B
61Staphylococcus aureus (strain Mu50 / ATCC 700699)Mutation(s): 0 
Gene Names: fib (efb)
Find proteins for P68799 (Staphylococcus aureus (strain Mu50 / ATCC 700699))
Go to UniProtKB:  P68799
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.25 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.211 
  • Space Group: P 43
Unit Cell:
Length (Å)Angle (°)
a = 59.598α = 90.00
b = 59.598β = 90.00
c = 45.634γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
SOLVEphasing
REFMACrefinement
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-03-20
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Advisory, Version format compliance