1LEO

P100S NUCLEOSIDE DIPHOSPHATE KINASE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Work: 0.193 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Nucleoside diphosphate kinase. Investigation of the intersubunit contacts by site-directed mutagenesis and crystallography.

Karlsson, A.Mesnildrey, S.Xu, Y.Morera, S.Janin, J.Veron, M.

(1996) J.Biol.Chem. 271: 19928-19934


  • PubMed Abstract: 
  • NDP kinase from Dictyostelium was mutated by site-directed mutagenesis at positions indicated by structural data to be involved in the trimer interface. The mutants were substitutions at residue Pro-100 (P100S and P100G) and deletions of 1-5 residues ...

    NDP kinase from Dictyostelium was mutated by site-directed mutagenesis at positions indicated by structural data to be involved in the trimer interface. The mutants were substitutions at residue Pro-100 (P100S and P100G) and deletions of 1-5 residues at the C terminus. Single mutants yielded proteins that kept both activity and hexameric structure. However, they were severely affected in their stability toward temperature and urea denaturation. When the P100S mutation was combined with any of the C-terminal deletions, the enzyme lost most of its activity and dissociated into dimers. Crystallographic analysis of the P100S protein was performed at 2.6 A resolution. The x-ray structure showed no direct alteration of intersubunits contacts at residue 100, but an induced disruption of the interaction between Asp-115 and the C terminus of another subunit. The substitution of proline 100 to serine corresponds to the Killer-of-prune mutation in Drosophila. Consequences of the mutation are discussed in view of the structural and biochemical properties observed in the mutant Dictyostelium protein.


    Organizational Affiliation

    Unité de Régulation Enzymatique des Activités Cellulaires, CNRS URA 1149, Institut Pasteur, 75724, Paris Cedex 15, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
NUCLEOSIDE DIPHOSPHATE KINASE
A
150Dictyostelium discoideumGene Names: ndkC-1, ndkC-2 (gip17, ndkB, gip17, ndkB)
EC: 2.7.4.6
Find proteins for P22887 (Dictyostelium discoideum)
Go to UniProtKB:  P22887
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Work: 0.193 
  • Space Group: P 63 2 2
Unit Cell:
Length (Å)Angle (°)
a = 75.044α = 90.00
b = 75.044β = 90.00
c = 105.200γ = 120.00
Software Package:
Software NamePurpose
X-PLORmodel building
MOSFLMdata reduction
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1996-11-08
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance