You can find more information about PF3D7_1324800-Dihydrofolate synthase using the following links:

PlasmoDB - the Plasmodium genome resource
Plasmodium falciparum GeneDB
The TDR Targets Database
Affecting Drugs
Drug Name PubMed Articles (year of publication)
Cycloguanil
Phosphinate
Proguanil
Pyrimethamine
Sulfadoxine
Wr99210