1OEY

Heterodimer of p40phox and p67phox PB1 domains from human NADPH oxidase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.210 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Pb1 Domain-Mediated Heterodimerization in Nadph Oxidase and Signaling Complexes of Atypical Protein Kinase C with Par6 and P62

Wilson, M.I.Gill, D.J.Perisic, O.Quinn, M.T.Williams, R.L.

(2003) Mol.Cell 12: 39


  • PubMed Abstract: 
  • Maximal activation of NADPH oxidase requires formation of a complex between the p40(phox) and p67(phox) subunits via association of their PB1 domains. We have determined the crystal structure of the p40(phox)/p67(phox) PB1 heterodimer, which reveals ...

    Maximal activation of NADPH oxidase requires formation of a complex between the p40(phox) and p67(phox) subunits via association of their PB1 domains. We have determined the crystal structure of the p40(phox)/p67(phox) PB1 heterodimer, which reveals that both domains have a beta grasp topology and that they bind in a front-to-back arrangement through conserved electrostatic interactions between an acidic OPCA motif on p40(phox) and basic residues in p67(phox). The structure enabled us to identify residues critical for heterodimerization among other members of the PB1 domain family, including the atypical protein kinase C zeta (PKC zeta) and its partners Par6 and p62 (ZIP, sequestosome). Both Par6 and p62 use their basic "back" to interact with the OPCA motif on the "front" of the PKC zeta. Besides heterodimeric interactions, some PB1 domains, like the p62 PB1, can make homotypic front-to-back arrays.


    Organizational Affiliation

    MRC Laboratory of Molecular Biology, Hills Road, Cambridge CB2 2QH, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
NEUTROPHIL CYTOSOL FACTOR 2
A, B, C, D
83Homo sapiensGene Names: NCF2 (NOXA2, P67PHOX)
Find proteins for P19878 (Homo sapiens)
Go to Gene View: NCF2
Go to UniProtKB:  P19878
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
NEUTROPHIL CYTOSOL FACTOR 4
J, K, L, M
107Homo sapiensGene Names: NCF4 (SH3PXD4)
Find proteins for Q15080 (Homo sapiens)
Go to Gene View: NCF4
Go to UniProtKB:  Q15080
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B, C, D, J, K, L, M
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.210 
  • Space Group: P 64
Unit Cell:
Length (Å)Angle (°)
a = 151.422α = 90.00
b = 151.422β = 90.00
c = 68.317γ = 120.00
Software Package:
Software NamePurpose
SCALAdata scaling
REFMACrefinement
SHARPphasing
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-07-29
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Version format compliance
  • Version 1.2: 2018-01-24
    Type: Advisory, Source and taxonomy