You can find more information about Plk using the following links:

PFID PFID Old Formal Annotation PlasmoDB TDR Targets Subcellular Localization Affecting Drugs
Drug Name PubMed Articles (year of publication)
PF3D7_1246900 PFL2250c RAC-beta serine/threonine protein kinase PlasmoDB TDR
Calmodulin, phospholipase c
Dihydroartemisinin
In silico prediction of protein targets of antimalarial compounds, suggested target
PF3D7_1454300 PF14_0516 snf1-related serine/threonine protein kinase kin PlasmoDB TDR
In silico prediction of protein targets of antimalarial compounds, suggested target
Expasy - NiceZime View
Brenda - The Comprehensive Enzyme Information System