PteridinesBiopterinChemical EngineeringPterinsDihydropteridine ReductaseChromatophoresGTP CyclohydrolaseNeopterinXanthopterinPteroylpolyglutamic AcidsOxidoreductasesLeishmania majorIsonipecotic AcidsFolic AcidEntomologyTetrahydrofolatesTetrahydrofolate DehydrogenaseAldehyde-LyasesFolic Acid AntagonistsAntiprotozoal AgentsMethotrexateNADPTrypanosoma brucei bruceiNitric Oxide SynthaseKineticsStructure-Activity RelationshipMolecular Sequence DataAmino Acid Sequence