1OV3

Structure of the p22phox-p47phox complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.229 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Molecular basis of phosphorylation-induced activation of the NADPH oxidase

Groemping, Y.Lapouge, K.Smerdon, S.J.Rittinger, K.

(2003) Cell 113: 343-355

  • Primary Citation of Related Structures:  1NG2

  • PubMed Abstract: 
  • The multi-subunit NADPH oxidase complex plays a crucial role in host defense against microbial infection through the production of reactive oxygen species. Activation of the NADPH oxidase requires the targeting of a cytoplasmic p40-p47-p67(phox) comp ...

    The multi-subunit NADPH oxidase complex plays a crucial role in host defense against microbial infection through the production of reactive oxygen species. Activation of the NADPH oxidase requires the targeting of a cytoplasmic p40-p47-p67(phox) complex to the membrane bound heterodimeric p22-gp91(phox) flavocytochrome. This interaction is prevented in the resting state due to an auto-inhibited conformation of p47(phox). The X-ray structure of the auto-inhibited form of p47(phox) reveals that tandem SH3 domains function together to maintain the cytoplasmic complex in an inactive form. Further structural and biochemical data show that phosphorylation of p47(phox) activates a molecular switch that relieves the inhibitory intramolecular interaction. This permits p47(phox) to interact with the cytoplasmic tail of p22(phox) and initiate formation of the active, membrane bound enzyme complex.


    Organizational Affiliation

    Division of Protein Structure, National Institute for Medical Research, Mill Hill, London NW7 1AA, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Neutrophil cytosol factor 1
A, B
138Homo sapiensGene Names: NCF1 (NOXO2, SH3PXD1A)
Find proteins for P14598 (Homo sapiens)
Go to Gene View: NCF1
Go to UniProtKB:  P14598
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Flavocytochrome b558 alpha polypeptide
C, D
18N/AN/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.229 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 132.660α = 90.00
b = 57.810β = 90.00
c = 45.170γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
DENZOdata reduction
AMoREphasing
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-05-20
    Type: Initial release
  • Version 1.1: 2008-04-29
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance