You can find more information about tryptophanyl-tRNA synthetase tryptophan--tRNA ligase using the following links:

PlasmoDB - the Plasmodium genome resource
The TDR Targets Database

Subcellular Localization

PDB protein strucure

Affecting Drugs
Drug Name PubMed Articles (year of publication)
Cassiarin-F
Crystal structure transition states, suggested target