Structure of the PII signal transduction protein of Neisseria meningitidis at 1.85 resolution

Experimental Data Snapshot

  • Resolution: 1.85 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.189 
  • R-Value Observed: 0.189 

Starting Model: experimental
View more details

wwPDB Validation   3D Report Full Report

This is version 1.3 of the entry. See complete history


Structure of the P(II) signal transduction protein of Neisseria meningitidis at 1.85 A resolution.

Nichols, C.E.Sainsbury, S.Berrow, N.S.Alderton, D.Saunders, N.J.Stammers, D.K.Owens, R.J.

(2006) Acta Crystallogr Sect F Struct Biol Cryst Commun 62: 494-497

  • DOI: https://doi.org/10.1107/S1744309106015430
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The P(II) signal transduction proteins GlnB and GlnK are implicated in the regulation of nitrogen assimilation in Escherichia coli and other enteric bacteria. P(II)-like proteins are widely distributed in bacteria, archaea and plants. In contrast to other bacteria, Neisseria are limited to a single P(II) protein (NMB 1995), which shows a high level of sequence identity to GlnB and GlnK from Escherichia coli (73 and 62%, respectively). The structure of the P(II) protein from N. meningitidis (serotype B) has been solved by molecular replacement to a resolution of 1.85 A. Comparison of the structure with those of other P(II) proteins shows that the overall fold is tightly conserved across the whole population of related proteins, in particular the positions of the residues implicated in ATP binding. It is proposed that the Neisseria P(II) protein shares functions with GlnB/GlnK of enteric bacteria.

  • Organizational Affiliation

    Division of Structural Biology, Henry Wellcome Building for Genomic Medicine, University of Oxford, Roosevelt Drive, Oxford OX3 7BN, England.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
PII signal transduction protein114Neisseria meningitidis MC58Mutation(s): 0 
Gene Names: NMB1955
Find proteins for Q9JXK6 (Neisseria meningitidis serogroup B (strain MC58))
Explore Q9JXK6 
Go to UniProtKB:  Q9JXK6
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9JXK6
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.85 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.189 
  • R-Value Observed: 0.189 
  • Space Group: P 63
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 61.141α = 90
b = 61.141β = 90
c = 48.074γ = 120
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-06-13
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Source and taxonomy, Version format compliance
  • Version 1.3: 2023-08-30
    Changes: Data collection, Database references, Refinement description