2YOF image
Entry Detail
PDB ID:
2YOF
Keywords:
Title:
Plasmodium falciparum thymidylate kinase in complex with a (thio)urea- beta-deoxythymidine inhibitor
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2012-10-24
Release Date:
2013-07-24
Method Details:
Experimental Method:
Resolution:
1.82 Å
R-Value Free:
0.23
R-Value Work:
0.18
R-Value Observed:
0.19
Space Group:
P 31 2 1
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:THYMIDYLATE KINASE
Chain IDs:A, B, C
Chain Length:210
Number of Molecules:3
Biological Source:PLASMODIUM FALCIPARUM
Primary Citation
Synthesis and Evaluation of Alpha-Thymidine Analogues as Novel Antimalarials.
J.Med.Chem. 55 10948 ? (2012)
PMID: 23240776 DOI: 10.1021/JM301328H

Abstact

Plasmodium falciparum thymidylate kinase (PfTMPK) is a key enzyme in pyrimidine nucleotide biosynthesis. 3-Trifluoromethyl-4-chloro-phenyl-urea-α-thymidine has been reported as an inhibitor of Mycobacterium tuberculosis TMPK (MtTMPK). Starting from this point, we designed, synthesized and evaluated a number of thymidine analogues as antimalarials. Both 5'-urea-α- and β-thymidine derivatives were moderate inhibitors of PfTMPK and furthermore showed moderate inhibition of parasite growth. The structure of several enzyme-inhibitor complexes provides a basis for improved inhibitor design. However, we found that certain 5'-urea-α-thymidine analogues had antimalarial activity where inhibition of PfTMPK is not the major mode of action. Optimization of this series resulted in a compound with potent antimalarial activity (EC(50) = 28 nM; CC(50) = 29 μM).

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Primary Citation of related structures