ISDA

Deposition Date 2013-12-23

Release Date 2015-02-04

Last Version Date 2023-12-20

Entry Detail

PDB ID:

4CJX

Keywords:

OXIDOREDUCTASE

Title:

The crystal structure of Trypanosoma brucei N5, N10- methylenetetrahydrofolate dehydrogenase-cyclohydrolase (FolD) complexed with NADP cofactor and inhibitor

Biological Source:

Source Organism:

TRYPANOSOMA BRUCEI BRUCEI STRAIN 927/4 GUTAT10.1 (Taxon ID: 999953)

Host Organism:

ESCHERICHIA COLI

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.05 Å

R-Value Free:

0.22

R-Value Work:

0.18

R-Value Observed:

0.18

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:C-1-TETRAHYDROFOLATE SYNTHASE, CYTOPLASMIC, PUTATIVE
Gene (Uniprot):Tb07.27M11.970
Chain IDs:A, B
Chain Length:319
Number of Molecules:2
Biological Source:TRYPANOSOMA BRUCEI BRUCEI STRAIN 927/4 GUTAT10.1

UniProt ID:Q57WP0 Pfam ID:PF00763, PF02882

Ligand Molecules

9L9

GOL

NAP

PEG

Primary Citation

Characterization of 2,4-Diamino-6-Oxo-1,6-Dihydropyrimidin-5-Yl Ureido Based Inhibitors of Trypanosoma Brucei Fold and Testing for Antiparasitic Activity.

Eadsforth, T.C, Pinto, A, Luciani, R, Tamborini, L, Cullia, G, De Micheli, C, Marinelli, L, Cosconati, S, Novellino, E, Lo Presti, L, Cordeiro Da Silva, A, Conti, P, Hunter, W.N, Costi, M.P.Show

J.Med.Chem. 58 7938 ? (2015)

PMID: 26322631 DOI: 10.1021/ACS.JMEDCHEM.5B00687

Abstact

The bifunctional enzyme N(5),N(10)-methylenetetrahydrofolate dehydrogenase/cyclo hydrolase (FolD) is essential for growth in Trypanosomatidae. We sought to develop inhibitors of Trypanosoma brucei FolD (TbFolD) as potential antiparasitic agents. Compound 2 was synthesized, and the molecular structure was unequivocally assigned through X-ray crystallography of the intermediate compound 3. Compound 2 showed an IC50 of 2.2 μM, against TbFolD and displayed antiparasitic activity against T. brucei (IC50 49 μM). Using compound 2, we were able to obtain the first X-ray structure of TbFolD in the presence of NADP(+) and the inhibitor, which then guided the rational design of a new series of potent TbFolD inhibitors.

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