1OB3

Structure of P. falciparum PfPK5

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.191 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history. 

Literature

Structures of P. Falciparum Pfpk5 Test the Cdk Regulation Paradigm and Suggest Mechanisms of Small Molecule Inhibition

Holton, S., Merckx, A., Burgess, D., Doerig, C., Noble, M., Endicott, J.

(2003) Structure 11: 1329

  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    • Plasmodium falciparum cell cycle regulators are promising targets for antimalarial drug design. We have determined the structure of PfPK5, the first structure of a P. falciparum protein kinase and the first of a cyclin-dependent kinase (CDK) not deri ...

    Plasmodium falciparum cell cycle regulators are promising targets for antimalarial drug design. We have determined the structure of PfPK5, the first structure of a P. falciparum protein kinase and the first of a cyclin-dependent kinase (CDK) not derived from humans. The fold and the mechanism of inactivation of monomeric CDKs are highly conserved across evolution. ATP-competitive CDK inhibitors have been developed as potential leads for cancer therapeutics. These studies have identified regions of the CDK active site that can be exploited to achieve significant gains in inhibitor potency and selectivity. We have cocrystallized PfPK5 with three inhibitors that target such regions. The sequence differences between PfPK5 and human CDKs within these inhibitor binding sites suggest that selective inhibition is an attainable goal. Such compounds will be useful tools for P. falciparum cell cycle studies, and will provide lead compounds for antimalarial drug development.

    Organizational Affiliation: 

    Laboratory of Molecular Biophysics, Department of Biochemistry, South Parks Road, OX1 3QU, Oxford, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CELL DIVISION CONTROL PROTEIN 2 HOMOLOG
A, B
288Plasmodium falciparum (isolate K1 / Thailand)Mutation(s): 0 
Gene Names: CRK2 (PK5)
EC: 2.7.11.22, 2.7.11.23
Find proteins for Q07785 (Plasmodium falciparum (isolate K1 / Thailand))
Go to UniProtKB:  Q07785
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.191 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 222.088α = 90.00
b = 44.267β = 103.42
c = 63.044γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
REFMACrefinement
MOLREPphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-01-23
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance