1WXR

Crystal structure of Heme Binding protein, an autotransporter hemoglobine protease from pathogenic Escherichia coli


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.203 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of heme binding protein, an autotransporter hemoglobin protease from pathogenic escherichia coli

Otto, B.R.Sijbrandi, R.Luirink, J.Oudega, B.Heddle, J.G.Mizutani, K.Park, S.-Y.Tame, J.R.H.

(2005) J.Biol.Chem. 280: 17339-17345

  • DOI: 10.1074/jbc.M412885200

  • PubMed Abstract: 
  • The acquisition of iron is essential for the survival of pathogenic bacteria, which have consequently evolved a wide variety of uptake systems to extract iron and heme from host proteins such as hemoglobin. Hemoglobin protease (Hbp) was discovered as ...

    The acquisition of iron is essential for the survival of pathogenic bacteria, which have consequently evolved a wide variety of uptake systems to extract iron and heme from host proteins such as hemoglobin. Hemoglobin protease (Hbp) was discovered as a factor involved in the symbiosis of pathogenic Escherichia coli and Bacteroides fragilis, which cause intra-abdominal abscesses. Released from E. coli, this serine protease autotransporter degrades hemoglobin and delivers heme to both bacterial species. The crystal structure of the complete passenger domain of Hbp (110 kDa) is presented, which is the first structure from this class of serine proteases and the largest parallel beta-helical structure yet solved.


    Organizational Affiliation

    Department of Molecular Microbiology, Faculty of Earth and Life Sciences, Vrije Universiteit de Boelelaan 1085, 1081 HV Amsterdam, The Netherlands.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
haemoglobin protease
A
1048Escherichia coliGene Names: hbp
EC: 3.4.21.-
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: BETA-BARREL
Sub Group: 
Outer Membrane Autotransporters
Protein: 
Hbp (hemoglobin protease) self-cleaving autotransporter with truncated passenger
Find proteins for O88093 (Escherichia coli)
Go to UniProtKB:  O88093
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.203 
  • Space Group: P 61 2 2
Unit Cell:
Length (Å)Angle (°)
a = 115.028α = 90.00
b = 115.028β = 90.00
c = 437.057γ = 120.00
Software Package:
Software NamePurpose
HKL-2000data reduction
REFMACrefinement
SCALEPACKdata scaling
SOLVEphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-03-01
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance